CN111444479A - Method and system for verifying ownership of digital fingerprint - Google Patents
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Abstract
The invention provides a method and a system for verifying ownership of a digital fingerprint, wherein the method comprises the steps of receiving an original picture uploaded by a user to be verified, generating a private key and a public key pair for the original picture, and generating the digital fingerprint of the original picture; the digital fingerprint and the public key are sent to a verification server, and if the verification server inquires that the digital fingerprint corresponding to the received digital fingerprint exists on the block chain, the digital fingerprint is verified to be valid; receiving a verification text of a verification server, calculating a hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by utilizing a private key to generate a user signature of the verification text; and sending the user signature of the verification text to a verification server, decrypting the user signature of the verification text by using the public key by the verification server, and determining that the authenticated user has ownership over the digital fingerprint of the original picture if the decryption is successful. Therefore, the digital fingerprint verification of the scheme of the invention can effectively verify the existence and the user ownership of the digital fingerprint.
Description
Technical Field
The invention relates to the technical field of copyright verification, in particular to a method and a system for verifying ownership of a digital fingerprint.
Background
The overload of information enables the attention of the public to become a new scarce resource, in order to capture the attention of the public, a large amount of low-quality eyeball-attracting contents are manufactured to flood the screen, and the living space of a high-quality content creator is seriously squeezed by the behavior of tampering and plagiarizing works of other people. Therefore, protecting the rights and interests of content creators and helping the original value to be changed are urgent needs of current internet high-quality content creators.
The characteristics of decentralization, publicity, transparency and non-falsification of a block chain are ideal carriers capable of storing copyright certificates, and the existing block chain certificate storage mode is to directly store hash values of files to be certified on the chain, so that the existence of works is only certified. The authentication format has poor expansibility and cannot support application scenes such as transactions.
In the prior art, a file hash value is used as certificate storage content, and when storing certificates, a user selects a hash algorithm, such as md5, calculates hash characteristics of a file to be stored, and writes the characteristics into a block chain. And during verification, the file original text is shown, the Hash characteristics are calculated by using the same algorithm and are compared with the Hash characteristics in the block chain and the block chain time stamp, so that the uploading time of the file is determined. However, the technology can only prove that the works exist, the expansibility of the authentication format is poor, the application scenarios such as transaction cannot be supported, the generated fingerprint information is mostly in the form of hash codes (for example, 5d45f1373f3c9f5eb1d32af361998240), the readability is poor, and the user is difficult to write and share. Therefore, the problem of poor expansibility and readability of the storage format in the prior art needs to be solved urgently.
Disclosure of Invention
In view of the above, the present invention has been made to provide a method and system for verifying ownership of a digital fingerprint that overcomes or at least partially solves the above problems.
According to an aspect of the present invention, there is provided a method of verifying ownership of a digital fingerprint, including:
receiving an original picture uploaded by a user of a party to be tested, generating a private key and a public key pair for the original picture, and generating a digital fingerprint of the original picture based on the private key;
sending the digital fingerprint and the public key to a verification server, inquiring whether a digital fingerprint corresponding to the received digital fingerprint exists on a block chain by the verification server, and if so, verifying that the digital fingerprint is valid;
receiving a verification text from a verification server, calculating a hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by using the private key to generate a user signature of the verification text;
and sending the user signature of the verification text to a verification server, decrypting the user signature of the verification text by using the public key by the verification server, and determining that the verified user has ownership of the digital fingerprint of the original picture if the decryption is successful.
Optionally, generating a digital fingerprint of the original picture based on the private key comprises:
calculating the hash value of the original picture by adopting a preset hash algorithm;
encrypting the hash value of the original picture by using the private key to generate a user signature of the original picture;
and combining the user signature of the original picture and the public key to generate the digital fingerprint of the original picture.
Optionally, querying, by the authentication server, on a blockchain whether a digital fingerprint corresponding to the received digital fingerprint exists, comprising:
identifying format information corresponding to the digital fingerprint with a preset format on the block chain;
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, converting the digital fingerprint of the original picture into the digital fingerprint with the same format as the preset format;
and the verification server inquires whether the digital fingerprint corresponding to the format-converted digital fingerprint exists on the block chain, and if so, the digital fingerprint is verified to be valid.
Optionally, identifying format information corresponding to a digital fingerprint in a preset format on the block chain includes:
detecting a version number in the digital fingerprints with preset formats on the block chain, wherein the version number is used for identifying the preset formats of different digital fingerprints;
and determining format information corresponding to the digital fingerprint according to the version number in the digital fingerprint.
Optionally, if it is determined based on the format information that the format of the digital fingerprint of the original picture is different from the preset format, converting the digital fingerprint of the original picture into a digital fingerprint having a format identical to the preset format includes:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, and the preset format is an original binary character string format;
and converting the digital fingerprint of the original picture into the digital fingerprint in the format of the original binary character string.
Optionally, if it is determined based on the format information that the format of the digital fingerprint of the original picture is different from the preset format, converting the digital fingerprint of the original picture into a digital fingerprint having a format identical to the preset format includes:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, the format of the digital fingerprint of the original picture is an original binary character string format, and the preset format is a digital DNA format;
and carrying out base58 encoding on the digital fingerprint of the original picture to obtain the digital fingerprint in a digital DNA format.
Optionally, if it is determined based on the format information that the format of the digital fingerprint of the original picture is different from the preset format, converting the digital fingerprint of the original picture into a digital fingerprint having a format identical to the preset format includes:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, the format of the digital fingerprint of the original picture is a digital DNA format, and the preset format is an abbreviated format of the digital DNA;
intercepting fields with preset number from the digital fingerprint of the original picture, and taking the intercepted fields with the preset number as the digital fingerprint.
Optionally, after the user signature of the verification text is successfully decrypted by the verification server using the public key, the method further includes:
receiving other attribute information of the original picture uploaded by the user, sending the received other attribute information to a verification server, and searching other attribute information of the original picture stored in advance by the verification server according to the digital fingerprint of the original picture;
and if the received other attribute information is consistent with the searched other attribute information of the original picture, determining that the tested party user has ownership over the digital fingerprint of the original picture.
Optionally, after determining that the authenticated user has ownership over the digital fingerprint of the original picture, further comprising:
receiving a picture management request or a search request of an original picture of ownership of a user to be tested;
according to the picture management request, performing management operation on a picture corresponding to the picture management request, wherein the management operation comprises at least one of modification operation, deletion operation and addition operation;
and searching a picture corresponding to the search request from a plurality of pre-stored pictures according to the search request, and displaying the searched picture.
Optionally, the other attribute information of the original picture includes at least one of:
type, title, creator information, work brief introduction.
According to another aspect of the present invention, there is also provided a verification system for ownership of digital fingerprints, comprising a terminal and a verification server, wherein the terminal comprises a generation module and a transmission module, and the verification server comprises a verification module and a determination module;
the generation module is suitable for receiving an original picture uploaded by a user of a tested party, generating a private key and a public key pair for the original picture, and generating a digital fingerprint of the original picture based on the private key;
the sending module is suitable for sending the digital fingerprint and the public key to the verification server;
the verification module is suitable for receiving the digital fingerprint and the public key, inquiring whether a digital fingerprint corresponding to the received digital fingerprint exists on a block chain, and if so, verifying that the digital fingerprint is valid;
the generation module is also suitable for receiving a verification text from a verification server, calculating a hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by utilizing the private key to generate a user signature of the verification text;
the sending module is further adapted to send the user signature of the verification text to the verification server;
the determining module is suitable for receiving the user signature of the verification text, decrypting the user signature of the verification text by using the public key, and determining that the authenticated user has ownership over the digital fingerprint of the original picture if decryption is successful.
Optionally, the generating module is further adapted to:
calculating the hash value of the original picture by adopting a preset hash algorithm;
encrypting the hash value of the original picture by using the private key to generate a user signature of the original picture;
and combining the user signature of the original picture and the public key to generate the digital fingerprint of the original picture.
Optionally, the system further comprises:
the identification module is suitable for identifying format information corresponding to the digital fingerprint with a preset format on the block chain;
the conversion module is suitable for converting the digital fingerprint of the original picture into the digital fingerprint with the same format as the preset format if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information;
the verification module is also suitable for the verification server to inquire whether the digital fingerprint corresponding to the format-converted digital fingerprint exists on the block chain, and if so, the digital fingerprint is verified to be valid.
Optionally, the identification module is further adapted to:
detecting a version number in the digital fingerprints with preset formats on the block chain, wherein the version number is used for identifying the preset formats of different digital fingerprints;
and determining format information corresponding to the digital fingerprint according to the version number in the digital fingerprint.
Optionally, the conversion module is further adapted to:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, and the preset format is an original binary character string format;
and converting the digital fingerprint of the original picture into the digital fingerprint in the format of the original binary character string.
Optionally, the conversion module is further adapted to:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, the format of the digital fingerprint of the original picture is an original binary character string format, and the preset format is a digital DNA format;
and carrying out base58 encoding on the digital fingerprint of the original picture to obtain the digital fingerprint in a digital DNA format.
Optionally, the conversion module is further adapted to:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, the format of the digital fingerprint of the original picture is a digital DNA format, and the preset format is an abbreviated format of the digital DNA;
intercepting fields with preset number from the digital fingerprint of the original picture, and taking the intercepted fields with the preset number as the digital fingerprint.
Optionally, the sending module is further adapted to receive other attribute information of the original picture uploaded by the user of the verified party after the determining module successfully decrypts the user signature of the verification text by using the public key, and send the received other attribute information to the verification server;
the determining module is further adapted to receive the other attribute information, search for other attribute information of the original picture stored in advance according to the digital fingerprint of the original picture, and determine that the authenticated user has ownership over the digital fingerprint of the original picture if the received other attribute information is consistent with the searched other attribute information of the original picture.
Optionally, the terminal further includes:
a receiving module adapted to receive a picture management request or a search request of the original picture of which the authenticated user has ownership rights after the determining module determines that the authenticated user has ownership rights to the digital fingerprint of the original picture;
the management module is suitable for executing management operation on the picture corresponding to the picture management request according to the picture management request, and the management operation comprises at least one of modification operation, deletion operation and addition operation;
and the searching and displaying module is suitable for searching the picture corresponding to the searching request from a plurality of prestored pictures according to the searching request and displaying the searched picture.
Optionally, the other attribute information of the original picture includes at least one of:
type, title, creator information, work brief introduction.
According to yet another aspect of the present invention, there is also provided a computer storage medium having stored thereon computer program code which, when run on a computing device, causes the computing device to perform the method of verifying ownership of a digital fingerprint of any of the embodiments above.
In accordance with yet another aspect of the present invention, there is also provided a computing device comprising: a processor; a memory storing computer program code; the computer program code, when executed by the processor, causes the computing device to perform the method of verifying ownership of a digital fingerprint of any of the embodiments above.
In the embodiment of the invention, when the ownership of the digital fingerprint is verified, the original picture uploaded by the user of the tested party is received, the private key and the public key pair are generated for the original picture, and the digital fingerprint of the original picture is generated based on the private key. And then the digital fingerprint and the public key are sent to a verification server, the verification server inquires whether the digital fingerprint corresponding to the received digital fingerprint exists on the block chain, and if so, the digital fingerprint is verified to be valid. And then receiving the verification text from the verification server, calculating the hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by using a private key to generate a user signature of the verification text. And finally, the user signature of the verification text is sent to a verification server, the verification server decrypts the user signature of the verification text by using the public key, and if the decryption is successful, the authenticated user is determined to have ownership over the digital fingerprint of the original picture. Therefore, the digital fingerprint verification mode adopting the scheme of the invention not only can effectively verify the existence of the digital fingerprint, but also can verify the ownership of the user, namely, the ownership proof of the picture copyright information is provided for the user through the digital signature technology. Furthermore, the whole verification process of the scheme can be independent of a specific platform, and the verification can be conveniently realized through decentralized application (Dapp).
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 illustrates a flow diagram of a method of verifying ownership of a digital fingerprint according to one embodiment of the invention;
FIG. 2 is a flow diagram illustrating a digital fingerprint authentication method based on a blockchain according to an embodiment of the present invention;
FIG. 3 illustrates a schematic structural diagram of a system for verifying ownership of a digital fingerprint according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a system for verifying ownership of a digital fingerprint according to another embodiment of the present invention; and
fig. 5 is a schematic structural diagram of a digital fingerprint ownership verification system according to another embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the above technical problem, an embodiment of the present invention provides a method for verifying ownership of a digital fingerprint, which is applied to a terminal device. Fig. 1 shows a flow diagram of a method of verifying ownership of a digital fingerprint according to an embodiment of the invention. Referring to fig. 1, the method includes at least steps S102 to S108.
Step S102, receiving an original picture uploaded by a user of an inspected party, generating a private key and a public key pair for the original picture, and generating a digital fingerprint of the original picture based on the private key.
Step S104, the digital fingerprint and the public key are sent to a verification server, the verification server inquires whether the digital fingerprint corresponding to the received digital fingerprint exists on the block chain, and if so, the digital fingerprint is verified to be valid.
This step is performed by verifying the validity of the digital fingerprint, and in fact verifying the presence of the digital fingerprint, i.e. verifying whether the digital fingerprint of the original picture is indeed present on the blockchain.
And S106, receiving the verification text from the verification server, calculating the hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by using a private key to generate a user signature of the verification text.
And step S108, sending the user signature of the verification text to a verification server, decrypting the user signature of the verification text by the verification server by using the public key, and if the decryption is successful, determining that the authenticated user has ownership over the digital fingerprint of the original picture.
Therefore, the digital fingerprint verification mode adopting the scheme of the invention not only can effectively verify the existence of the digital fingerprint, but also can verify the ownership of the user, namely, the ownership proof of the picture copyright information is provided for the user through the digital signature technology. Furthermore, the whole verification process of the scheme can be independent of a specific platform, and the verification can be conveniently realized through Decentralized application (Dapp).
Referring to step S102, in an embodiment of the present invention, a specific process of generating the digital fingerprint of the original picture based on the private key may be that, after the original picture uploaded by the user is obtained, a preset hash algorithm is first used to calculate a hash value of the original picture. The hash value of the original picture is then encrypted with a private key to generate a user signature of the original picture. And then combining the user signature of the original picture and the public key to generate the digital fingerprint of the original picture.
In this embodiment, the predetermined Hash Algorithm may use SHA1(Secure Hash Algorithm) Algorithm. In addition, when the hash value of the original picture is encrypted by using the private key, a signature algorithm RSA (public key encryption algorithm) + SHA256 may be used to generate a user signature of the original picture.
Referring to step S104, in an embodiment of the present invention, since the digital fingerprint of the picture may be written in the blockchain in multiple formats, when the verification server queries whether there is a digital fingerprint corresponding to the received digital fingerprint on the blockchain, it is further required to first identify format information corresponding to the digital fingerprint in a preset format on the blockchain. If the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, the digital fingerprint of the original picture needs to be converted into the digital fingerprint with the same format as the preset format, then the verification server inquires whether the digital fingerprint corresponding to the digital fingerprint after format conversion exists on the block chain, and if the digital fingerprint exists, the verification of the digital fingerprint is effective.
In the embodiment of the present invention, digital fingerprints in multiple preset formats may be set according to different scenes where the digital fingerprints are actually propagated, and three writing formats of the digital fingerprints are described below.
Format 1, original binary string format. Namely, the digital fingerprint included in the evidence data item of the original picture is written into the block chain in the original binary string format. For example, the digital fingerprint is 0x00bb40895f3ad0425a5c85210cb2fb0329e1b1a4b17a 27.
Format 2, digital DNA format, which converts the original 23byte digital fingerprint into base58 code that compresses the plaintext content, removing the characters that are ambiguous to read, such as 0 (zero) and O (capital letter O), I (capital form of letter I) and l (small form of letter L), and a plurality of characters that affect double-click selection, such as "/", "+", so that the format can both facilitate the user's copy and paste operations on the computer and avoid the user's spelling errors during manual recording, specifically, when writing the digital fingerprint into the block chain in digital DNA format, the digital fingerprint in digital DNA format is first base58 encoded to obtain the digital fingerprint in digital DNA format, and then written into the block chain in digital DNA format, for example, the digital fingerprint in binary format is 0x00bb 89405 f3ad0425a5c 85cb 2 cb 032 1 e1b 0329e1b, 9 b 3b, 9 b 3a, b 3.
Format 3, abbreviation of digital DNA. The format is to intercept a preset number of fields from the digital fingerprint in the digital DNA format and write the intercepted preset number of fields as the digital fingerprint into a block chain. For example, the first 8 letters are truncated from the digital fingerprint of format 2, e.g.: 1sph9 jUk. The digital fingerprint content in the format is short and easy to distinguish, and is suitable for recording and spreading by users.
The following describes the process of converting digital fingerprints with different formats from the preset format into digital fingerprints with the preset format.
First, the default format is the original binary string format. And if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, directly converting the digital fingerprint of the original picture into the digital fingerprint in the format of the original binary character string.
Second, the predetermined format is a digital DNA format. And if the format of the digital fingerprint of the original picture is determined to be the original binary character string format based on the format information, performing base58 encoding on the digital fingerprint of the original picture to obtain the digital fingerprint in the digital DNA format.
Thirdly, the preset format is an abbreviated format of digital DNA, if the format of the digital fingerprint of the original picture is determined to be the digital DNA format based on the format information, fields with preset number are intercepted from the digital fingerprint of the original picture, and the intercepted fields with preset number are used as the digital fingerprint. For example, the first 8 letters are intercepted from the digital fingerprint in the digital DNA format, but other numbers of fields may be intercepted, and are not specifically limited herein.
In an embodiment of the present invention, the digital fingerprint further carries a version number, and the version number may be used to identify preset formats of different digital fingerprints. Therefore, when the format information corresponding to the digital fingerprint with the preset format on the block chain is identified, the version number in the digital fingerprint with the preset format on the block chain can be detected, so that the format information corresponding to the digital fingerprint can be determined according to the detected version number in the digital fingerprint. The correspondence of the version number and the format of the digital fingerprint in this embodiment is predefined. For example, a version number of "00" may be predefined, with the corresponding digital fingerprint being in a binary string format. For another example, the predefined version number is "20", and the corresponding digital fingerprint is in a digital DNA format, where the digital DNA format refers to a format obtained by base58 encoding a digital fingerprint in a binary string format.
In the embodiment of the invention, the digital fingerprint of each original picture is globally unique and is used for picture retrieval and authentication of copyright information, the original length is 23 bytes, the format of the digital fingerprint can be that the first byte is a version number, the middle 20 bytes are fingerprint hash values, namely fingerprint digests, and the last 2 bytes can be used as check bits. In this embodiment, the fingerprint digest algorithm may use ripemd160(sha256(pub _ key + user _ signature)), where pub _ key is the user public key, user _ signature is the user signature, and "+" represents string connection. The check bit algorithm adopts sha256 (version number + fingerprint abstract), and the first 2 bytes are taken from the result obtained by calculation by the algorithm. For example, one digital fingerprint may be: 00bb40895f3ad0425a5c85210cb2fb0329e1b1a4b17a27, wherein the digital fingerprint has a version number of "00", the fingerprint digest is "bb 40895f3ad0425a5c85210cb2fb0329e1b 4b 1", and the check bit is "7 a 27".
In the embodiment of the present invention, the version number of the digital fingerprint may also be used to extend the digital fingerprint, for example, to identify different states of the original picture corresponding to the digital fingerprint, such as identification of a platform or a merchant authorized to the digital fingerprint, change of a copyright owner of the original picture corresponding to the digital fingerprint, transaction of the original picture not yet, and the like. For example, if an "authorization mode" is added to the original picture uploaded by the user, an "conference" corresponding to the "authorization mode" is added to the recording format of the digital fingerprint, for example, the authorization mode may refer to that the original picture authorizes the copyright of the original picture to a certain merchant or a certain platform.
In this embodiment, assuming that the new digital fingerprint version number is agreed to be 01, an example of the new digital fingerprint is as follows, 01782ff4354af18e70e1288d3e988beda5f8cd1a32dc7 e. Wherein "01" is the version number, "782 ff4354af18e70e1288d3e988beda5f8cd1a 32" is the fingerprint digest, and "dc 7 e" is the check bit. When the ownership of the fingerprint is verified subsequently, the verification program can also detect the version number of the fingerprint and verify the fingerprint according to the format agreed by the corresponding version number.
Referring to table 1, the digital fingerprint is introduced below by combining with the verification data items corresponding to the original picture, such as the recording formats on the chain, such as the digital fingerprint (dnas), the hash value (content _ hash), the author information (author), the upload time stamp (upload _ time), and the user signature (user _ signature).
| Name of field | Type (B) | Maximum length | Remarks for note |
| dna | string | 32byte | Copyright content DNA, base58 encoded preservation |
| content_hash | string | 40byte | Content hash, SHA1 |
| author | string | 128byte | Name of author |
| licence | string | 128byte | Authorization mode |
| upload_time | uint256 | 32byte | Upload time stamp |
| time_signature | string | 350byte | Optional, authoritative trusted timestamp signatures |
| user_signature | string | 350byte | Signature of uploader, rsa + sha256, preservation of base64 encoding |
TABLE 1
In table 1, dna represents a digital fingerprint, which may be saved after base58 is encoded, i.e. corresponding to format 2 hereinafter. The hash value content _ hash, which uses a predetermined hash algorithm, may be SHA1(Secure HashAlgorithm). Author information author, uploaded by the user. "conference" indicates that the digital fingerprint is in "authorization mode". The upload time stamp (upload _ time) records the upload time of the original picture. And the signature information time _ signature is optional information, and when the uploading timestamp is determined by the credible timestamp of the authority, the signature information of the credible timestamp by the authority needs to be acquired. The signature algorithm adopted by the user signature user _ signature, namely the picture uploader signature, can be rsa + sha256, and is stored in the block chain after being encoded by base 64.
In the embodiment of the invention, the uploading timestamp of the original picture can be obtained by adopting the following two modes.
Firstly, the trusted timestamp carrying the subscription information of the authority is received from the authority, so that the uploading timestamp is added to the original picture based on the trusted timestamp of the authority, namely, the trusted timestamp is used as the uploading timestamp of the original picture. In this method, if a trusted timestamp from the authority is received, signature information (time _ signature) of the trusted timestamp by the authority needs to be attached.
And secondly, determining the uploading time of the original picture through the user declaration time, and adding an uploading timestamp for the original picture based on the determined uploading time of the original picture. Wherein the user declaration time is declared by a user who uploaded the original picture. In this manner, the user declares that the time and the timestamp generated by the corresponding chunk in the blockchain into which the forensic data item is to be stored satisfy the following relationship: block generation time-preset time < picture upload time < block generation time.
Based on the second mode, in the process of writing the original picture storage data item into the block chain, the original picture storage data item can be written into the block chain under the condition that the uploading timestamp in the original picture storage data item is defined as upload _ time, and the timestamp generated by the block in the block chain for being written into the original picture storage data item is defined as block _ time, so that the original picture storage data item is written into the block chain under the condition that the uploading timestamp upload _ time meets the condition that the block _ time-preset time < upload _ time < block _ time. In this embodiment, the preset time may be any preset time, such as 4 hours, 3 hours, 2 hours, and the like, which is not specifically limited in this embodiment of the present invention.
In an embodiment of the present invention, the blockchain may further store other attribute information of the original picture, such as the type, title, creator information, and introduction of the work of the original picture. After the verified user is determined to have ownership over the digital fingerprint of the original picture, in order to further guarantee the verification quality of the digital fingerprint, the ownership of the digital fingerprint can be verified by combining with other attribute information of the original picture. Specifically, other attribute information of the original picture uploaded by the user is received, the received other attribute information is sent to the verification server, and the verification server searches other attribute information of the original picture stored in advance according to the digital fingerprint of the original picture. If the received other attribute information is consistent with the found other attribute information of the original picture, the ownership of the digital fingerprint of the original picture by the user to be tested can be further determined.
In the embodiment of the present invention, other attribute information of the original picture may also be stored in a distributed storage system (e.g., a redis storage system) in advance, and the distributed storage system may also store any information related to the original picture, such as a digital fingerprint, a hash value, author information, an upload timestamp, a user signature, and other verification data items corresponding to the original picture. And any information related to the original picture is stored in a distributed storage system (such as a redis storage system) in a kv (Key-Value) manner, wherein the digital fingerprint is used as a Key, and other attribute information, the certificate storage data item, the public Key, and the like of the original picture are used as Value values. The storage mode can facilitate the follow-up search of the evidence storage data item or other attribute information of the original picture, and the non-chain type offchain query can be realized.
In an embodiment of the invention, after the copyright registration is performed on the original picture, the user who uploads the original picture can also perform operations such as viewing and editing on the original picture and the related information thereof at any time, so as to perfect the related information of the original picture. For example, a picture management request submitted by a user can be received to perform related management on the original picture, and a picture search request submitted by the user can be received to search out a picture corresponding to the search request from a large number of saved pictures.
When a picture management request submitted by a user is received, a management operation can be executed on a picture which corresponds to the picture management request and is stored in the server according to the picture management request. Here, the management operation may include a modification operation, a deletion operation, an addition operation, and the like. When a search request submitted by a user is received, a picture corresponding to the search request can be acquired from pictures stored in a server according to the received search request, and the searched picture is displayed.
The above embodiments describe a process of verifying ownership of a digital fingerprint, and in order to more clearly reflect a process of generating a digital fingerprint and a process of writing related information into a blockchain, an embodiment of the present invention further provides a method for verifying a digital fingerprint based on a blockchain. Referring to fig. 2, the method includes at least steps S202 to S206.
Step S202, when the original picture uploaded by the user and the author information of the original picture are received, calculating the hash value of the original picture by adopting a preset hash algorithm based on the received original picture and the author information of the original picture, and adding an uploading timestamp to the original picture.
Step S204, generating a private key and a public key pair for the received original picture, encrypting the hash value of the original picture by using the private key to generate a user signature, and combining the generated user signature and the public key to obtain the digital fingerprint.
In this step, the user signature is generated based on the private key and hash value of the original picture, which can be used for user proof of ownership. The signature algorithm may use RSA (public key encryption algorithm) + SHA 256. The original first version of signature content includes three fields, namely a hash value content _ hash, an upload time upload _ time and an author, and the format adopts: and (4) the contents after the Minify in the standard JSON format are the contents obtained after the content in the JSON format is subjected to minimum compression. For example, content _ hash is: "c 92509e0a2cdba2c9ed8a97284d64d785cbc6ff 6", upload _ time is "1524128913", author is "\ u4f5c \ u8005\ u540 d".
Step S206, the certificate storing data items corresponding to the original picture and comprising the digital fingerprint, the hash value, the author information, the uploading timestamp and the user signature are sent to a server, and the server writes the certificate storing data items of the original picture into a block chain.
The embodiment of the invention registers and stores original picture content by using a trusted timestamp and a digital signature technology and combining ownership certification and existence certification service provided by a block chain to generate the unique digital DNA (namely digital fingerprint) of the picture works, and then scenes such as copyright detection, offline verification, copyright transaction and the like can be performed by using the digital DNA, and the format of the digital fingerprint storage certificate has higher readability and expansibility.
In addition, the embodiment of the invention can be applied to digital fingerprint evidence storage of pictures and different digital file evidence storage of articles, videos and the like, and effectively solves the problem of poor expansibility of the evidence storage format in the prior art. In this embodiment, a reliable content digest can be provided for copyrighted content (e.g., original pictures) by using the blockchain, a timestamp is recorded to enable presence attestation, and a proof of ownership of the copyrighted information can be provided for the user by using digital signature techniques. After the digital fingerprint authentication is realized, the subsequent picture copyright authentication, verification and transaction processes can be realized by Decentralized application (Dapp) without depending on a specific platform. The data format of the deposit certificate data item is convenient for on-chain retrieval of the block chain, and the signature and the algorithm can be upgraded and optimized according to requirements, so that scenes such as copyright detection, transaction, income issuing and the like are supported, and the method has good expandability. In addition, the digital fingerprint information is short and easy to distinguish, can be conveniently recorded and spread by a user, and has strong readability.
Based on the same inventive concept, the embodiment of the invention also provides a verification system for digital fingerprint ownership. Fig. 3 is a schematic structural diagram of a system for verifying ownership of a digital fingerprint according to an embodiment of the present invention. Referring to fig. 3, the verification system 300 for digital fingerprint ownership includes a terminal 10 and a verification server 20, wherein the terminal 10 includes a generation module 310 and a transmission module 320, and the verification server 20 includes a verification module 330 and a determination module 340.
The functions of the components or devices of the digital fingerprint ownership verification system 300 and the connection relationship between the components will be described:
the generation module 310 is suitable for receiving the original picture uploaded by the user of the tested party, generating a private key and a public key pair for the original picture, and generating a digital fingerprint of the original picture based on the private key;
a transmitting module 320 adapted to transmit the digital fingerprint and the public key to the authentication server 20;
the verification module 330 is adapted to receive the digital fingerprint and the public key, query whether a digital fingerprint corresponding to the received digital fingerprint exists on the blockchain, and verify that the digital fingerprint is valid if the digital fingerprint exists;
the generating module 310 is further adapted to receive the verification text from the verification server 20, calculate a hash value of the verification text by using a preset hash algorithm, and encrypt the hash value of the verification text by using a private key to generate a user signature of the verification text;
a sending module 320 further adapted to send the user signature of the verification text to the verification server 20;
the determining module 340 is adapted to receive the user signature of the verification text, decrypt the user signature of the verification text by using the public key received by the verifying module 330, and determine that the authenticated user has ownership over the digital fingerprint of the original image if decryption is successful.
In an embodiment of the present invention, the generating module 310 is further adapted to calculate a hash value of the original picture by using a preset hash algorithm, encrypt the hash value of the original picture by using a private key to generate a user signature of the original picture, and combine the user signature of the original picture and the public key to generate the digital fingerprint of the original picture.
Fig. 4 is a schematic structural diagram of a digital fingerprint ownership verification system according to another embodiment of the present invention. Referring to fig. 4, the verification system 300 for digital fingerprint ownership includes a terminal 10 and a verification server 20, wherein the terminal 10 includes a generation module 310 and a transmission module 320, and the verification server 20 includes a verification module 330, a determination module 340, an identification module 350, and a conversion module 360.
The identifying module 350 is adapted to identify format information corresponding to a digital fingerprint in a preset format on the block chain;
the conversion module 360 is adapted to convert the digital fingerprint of the original picture into the digital fingerprint of the same format as the preset format if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information;
the verification module 330 is further adapted to query whether a digital fingerprint corresponding to the format-converted digital fingerprint exists on the blockchain, and if so, verify that the digital fingerprint is valid.
In an embodiment of the present invention, the identification module 350 is further adapted to detect a version number in a digital fingerprint with a preset format on the block chain, where the version number is used to identify the preset format of different digital fingerprints. And determining format information corresponding to the digital fingerprint according to the version number in the digital fingerprint.
In an embodiment of the present invention, the converting module 360 is further adapted to determine that the format of the digital fingerprint of the original picture is different from the preset format based on the format information, and the preset format is an original binary string format. And converting the digital fingerprint of the original picture into the digital fingerprint in the format of the original binary character string.
In an embodiment of the present invention, the converting module 360 is further adapted to determine that the format of the digital fingerprint of the original picture is different from the preset format based on the format information, and the format of the digital fingerprint of the original picture is an original binary string format, and the preset format is a digital DNA format. And performing base58 encoding on the digital fingerprint of the original picture to obtain the digital fingerprint in a digital DNA format.
In an embodiment of the invention, the converting module 360 is further adapted to determine that the format of the digital fingerprint of the original picture is different from the preset format based on the format information, and the format of the digital fingerprint of the original picture is a digital DNA format, and the preset format is an abbreviated format of the digital DNA. Intercepting fields with preset number from the digital fingerprint of the original picture, and taking the intercepted fields with the preset number as the digital fingerprint.
Fig. 5 is a schematic structural diagram of a digital fingerprint ownership verification system according to still another embodiment of the present invention. Referring to fig. 5, the system for verifying ownership of digital fingerprint comprises a terminal 10 and a verification server 20, wherein the terminal 10 comprises a generating module 310, a transmitting module 320, a receiving module 370, a managing module 380 and a search presenting module 390, and the verification server 20 comprises a verification module 330, a determining module 340, an identifying module 350 and a converting module 360.
The sending module 320 is further adapted to, after the determining module 340 successfully decrypts the user signature of the verification text by using the public key, receive other attribute information of the original picture uploaded by the user of the verified party, and send the received other attribute information to the verification server 20.
The determining module 340 is further adapted to receive other attribute information, search for other attribute information of the original picture stored in advance according to the digital fingerprint of the original picture, and determine that the authenticated user has ownership over the digital fingerprint of the original picture if the received other attribute information is consistent with the searched other attribute information of the original picture.
A receiving module 370 adapted to receive a picture management request or a search request of the original picture for which the verified user has ownership rights after the determining module 340 determines that the verified user has ownership rights to the digital fingerprint of the original picture.
The management module 380 is adapted to perform a management operation on the picture corresponding to the picture management request according to the picture management request, where the management operation includes at least one of a modification operation, a deletion operation, and an addition operation.
The search presentation module 390 is adapted to search a picture corresponding to the search request from a plurality of pre-stored pictures according to the search request, and present the searched picture.
In an embodiment of the invention, the other attribute information of the original picture comprises at least one of a type of the picture, a title, creator information, and a summary of the work.
The present invention also provides a computer storage medium having computer program code stored thereon which, when run on a computing device, causes the computing device to perform the method of verifying ownership of a digital fingerprint of any of the embodiments above.
The invention also provides a computing device comprising a processor; a memory storing computer program code; the computer program code, when executed by the processor, causes the computing device to perform the method of verifying ownership of a digital fingerprint of any of the embodiments above.
According to any one or a combination of the above preferred embodiments, the following advantages can be achieved by the embodiments of the present invention:
when the ownership of the digital fingerprint is verified, the original picture uploaded by the user of the tested party is received, a private key and a public key pair are generated for the original picture, and the digital fingerprint of the original picture is generated based on the private key. And then the digital fingerprint and the public key are sent to a verification server, the verification server inquires whether the digital fingerprint corresponding to the received digital fingerprint exists on the block chain, and if so, the digital fingerprint is verified to be valid. And then receiving the verification text from the verification server, calculating the hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by using a private key to generate a user signature of the verification text. And finally, the user signature of the verification text is sent to a verification server, the verification server decrypts the user signature of the verification text by using the public key, and if the decryption is successful, the authenticated user is determined to have ownership over the digital fingerprint of the original picture. Therefore, the digital fingerprint verification mode adopting the scheme of the invention not only can effectively verify the existence of the digital fingerprint, but also can verify the ownership of the user, namely, the ownership proof of the picture copyright information is provided for the user through the digital signature technology. Furthermore, the whole verification process of the scheme can be independent of a specific platform, and the verification can be conveniently realized through Decentralized application (Dapp).
It is clear to those skilled in the art that the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and for the sake of brevity, further description is omitted here.
In addition, the functional units in the embodiments of the present invention may be physically independent of each other, two or more functional units may be integrated together, or all the functional units may be integrated in one processing unit. The integrated functional units may be implemented in the form of hardware, or in the form of software or firmware.
Those of ordinary skill in the art will understand that: the integrated functional units, if implemented in software and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computing device (e.g., a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention when the instructions are executed. And the aforementioned storage medium includes: u disk, removable hard disk, Read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disk, and other various media capable of storing program code.
Alternatively, all or part of the steps of implementing the foregoing method embodiments may be implemented by hardware (such as a computing device, e.g., a personal computer, a server, or a network device) associated with program instructions, which may be stored in a computer-readable storage medium, and when the program instructions are executed by a processor of the computing device, the computing device executes all or part of the steps of the method according to the embodiments of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments can be modified or some or all of the technical features can be equivalently replaced within the spirit and principle of the present invention; such modifications or substitutions do not depart from the scope of the present invention.
Claims (10)
1. A method of verifying ownership of a digital fingerprint, comprising:
receiving an original picture uploaded by a user of a party to be tested, generating a private key and a public key pair for the original picture, and generating a digital fingerprint of the original picture based on the private key;
sending the digital fingerprint and the public key to a verification server, inquiring whether a digital fingerprint corresponding to the received digital fingerprint exists on a block chain by the verification server, and if so, verifying that the digital fingerprint is valid;
receiving a verification text from a verification server, calculating a hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by using the private key to generate a user signature of the verification text;
and sending the user signature of the verification text to a verification server, decrypting the user signature of the verification text by using the public key by the verification server, and determining that the verified user has ownership of the digital fingerprint of the original picture if the decryption is successful.
2. The method of claim 1, wherein generating a digital fingerprint of an original picture based on the private key comprises:
calculating the hash value of the original picture by adopting a preset hash algorithm;
encrypting the hash value of the original picture by using the private key to generate a user signature of the original picture;
and combining the user signature of the original picture and the public key to generate the digital fingerprint of the original picture.
3. The method of claim 1 or 2, wherein querying, by the authentication server, over a blockchain whether a digital fingerprint corresponding to the received digital fingerprint exists comprises:
identifying format information corresponding to the digital fingerprint with a preset format on the block chain;
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, converting the digital fingerprint of the original picture into the digital fingerprint with the same format as the preset format;
and the verification server inquires whether the digital fingerprint corresponding to the format-converted digital fingerprint exists on the block chain, and if so, the digital fingerprint is verified to be valid.
4. The method according to any one of claims 1 to 3, wherein identifying format information corresponding to a digital fingerprint of a preset format on the blockchain comprises:
detecting a version number in the digital fingerprints with preset formats on the block chain, wherein the version number is used for identifying the preset formats of different digital fingerprints;
and determining format information corresponding to the digital fingerprint according to the version number in the digital fingerprint.
5. The method according to any one of claims 1-4, wherein if it is determined based on the format information that the format of the digital fingerprint of the original picture is different from the preset format, converting the digital fingerprint of the original picture into a digital fingerprint of the same format as the preset format comprises:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, and the preset format is an original binary character string format;
and converting the digital fingerprint of the original picture into the digital fingerprint in the format of the original binary character string.
6. The method according to any one of claims 1-5, wherein if it is determined based on the format information that the format of the digital fingerprint of the original picture is different from the preset format, converting the digital fingerprint of the original picture into a digital fingerprint of the same format as the preset format comprises:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, the format of the digital fingerprint of the original picture is an original binary character string format, and the preset format is a digital DNA format;
and carrying out base58 encoding on the digital fingerprint of the original picture to obtain the digital fingerprint in a digital DNA format.
7. The method according to any one of claims 1-6, wherein if it is determined based on the format information that the format of the digital fingerprint of the original picture is different from the preset format, converting the digital fingerprint of the original picture into a digital fingerprint of the same format as the preset format comprises:
if the format of the digital fingerprint of the original picture is determined to be different from the preset format based on the format information, the format of the digital fingerprint of the original picture is a digital DNA format, and the preset format is an abbreviated format of the digital DNA;
intercepting fields with preset number from the digital fingerprint of the original picture, and taking the intercepted fields with the preset number as the digital fingerprint.
8. A verification system for ownership of digital fingerprints comprises a terminal and a verification server, wherein the terminal comprises a generation module and a sending module, and the verification server comprises a verification module and a determination module;
the generation module is suitable for receiving an original picture uploaded by a user of a tested party, generating a private key and a public key pair for the original picture, and generating a digital fingerprint of the original picture based on the private key;
the sending module is suitable for sending the digital fingerprint and the public key to the verification server;
the verification module is suitable for receiving the digital fingerprint and the public key, inquiring whether a digital fingerprint corresponding to the received digital fingerprint exists on a block chain, and if so, verifying that the digital fingerprint is valid;
the generation module is also suitable for receiving a verification text from a verification server, calculating a hash value of the verification text by adopting a preset hash algorithm, and encrypting the hash value of the verification text by utilizing the private key to generate a user signature of the verification text;
the sending module is further adapted to send the user signature of the verification text to the verification server;
the determining module is suitable for receiving the user signature of the verification text, decrypting the user signature of the verification text by using the public key, and determining that the authenticated user has ownership over the digital fingerprint of the original picture if decryption is successful.
9. A computer storage medium having computer program code stored thereon which, when run on a computing device, causes the computing device to perform a method of verifying ownership of a digital fingerprint according to any one of claims 1 to 7.
10. A computing device, comprising: a processor; a memory storing computer program code; the computer program code, when executed by the processor, causes the computing device to perform a method of verifying ownership of a digital fingerprint according to any one of claims 1 to 7.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112685795A (en) * | 2020-12-31 | 2021-04-20 | 树根互联技术有限公司 | Digital deposit certificate creating method, digital deposit certificate verifying method and digital deposit certificate system |
| CN112926070A (en) * | 2021-03-02 | 2021-06-08 | 浪潮云信息技术股份公司 | Domestic CPU and operating system based non-secret-related domain and secret-related domain official document exchange method and system |
| CN114884663A (en) * | 2021-02-05 | 2022-08-09 | 腾讯科技（深圳）有限公司 | Multimedia object processing method, device, equipment and storage medium |
| CN114971421A (en) * | 2022-07-22 | 2022-08-30 | 中国长江三峡集团有限公司 | Hydropower station operation risk management and control system based on block chain technology |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160300234A1 (en) * | 2015-04-06 | 2016-10-13 | Bitmark, Inc. | System and method for decentralized title recordation and authentication |
| CN106682457A (en) * | 2016-12-16 | 2017-05-17 | 北京握奇智能科技有限公司 | Picture copyright protection method and picture copyright protection system based on blockchain technology |
| CN106991573A (en) * | 2017-04-07 | 2017-07-28 | 中链科技有限公司 | Art work fidelity method and server based on block chain technology |
| CN107086920A (en) * | 2017-06-20 | 2017-08-22 | 无锡井通网络科技有限公司 | Copyright based on block chain really weighs method |
| CN107222303A (en) * | 2017-05-11 | 2017-09-29 | 暨南大学 | Digital publishing rights traceability system building method based on block chain and cloud platform |
| CN107330694A (en) * | 2017-07-03 | 2017-11-07 | 重庆小犀智能科技有限公司 | Copyright trading system and method for commerce based on block chain |
| CN107786504A (en) * | 2016-08-26 | 2018-03-09 | 腾讯科技（深圳）有限公司 | ELF file publishing methods, ELF file verifications method, server and terminal |
| CN107888375A (en) * | 2017-11-08 | 2018-04-06 | 深圳市携网科技有限公司 | A kind of electronic evidence safety system and method based on block chain technology |
| CN108664770A (en) * | 2018-05-22 | 2018-10-16 | 上海七印信息科技有限公司 | There are methods of proof for a kind of high confidence level based on block chain technology |
| CN108711051A (en) * | 2018-05-03 | 2018-10-26 | 法信公证云（厦门）科技有限公司 | A kind of intellectual property transaction shared platform and method based on block chain |
| CN108881244A (en) * | 2018-06-27 | 2018-11-23 | 中国人民解放军国防科技大学 | Intellectual property protection method for network short texts based on block chains |
| CN109035024A (en) * | 2018-08-15 | 2018-12-18 | 杭州链汇通区块链科技有限公司 | Method, system and the storage medium of electronic signature |
| CN109067524A (en) * | 2018-07-31 | 2018-12-21 | 杭州复杂美科技有限公司 | A kind of public private key pair generation method and system |
| CN109063426A (en) * | 2018-09-20 | 2018-12-21 | 新华智云科技有限公司 | A kind of copyright based on alliance's block chain deposits card sharing method and system |
-
2018
- 2018-12-29 CN CN201811647524.4A patent/CN111444479B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160300234A1 (en) * | 2015-04-06 | 2016-10-13 | Bitmark, Inc. | System and method for decentralized title recordation and authentication |
| CN107786504A (en) * | 2016-08-26 | 2018-03-09 | 腾讯科技（深圳）有限公司 | ELF file publishing methods, ELF file verifications method, server and terminal |
| CN106682457A (en) * | 2016-12-16 | 2017-05-17 | 北京握奇智能科技有限公司 | Picture copyright protection method and picture copyright protection system based on blockchain technology |
| CN106991573A (en) * | 2017-04-07 | 2017-07-28 | 中链科技有限公司 | Art work fidelity method and server based on block chain technology |
| CN107222303A (en) * | 2017-05-11 | 2017-09-29 | 暨南大学 | Digital publishing rights traceability system building method based on block chain and cloud platform |
| CN107086920A (en) * | 2017-06-20 | 2017-08-22 | 无锡井通网络科技有限公司 | Copyright based on block chain really weighs method |
| CN107330694A (en) * | 2017-07-03 | 2017-11-07 | 重庆小犀智能科技有限公司 | Copyright trading system and method for commerce based on block chain |
| CN107888375A (en) * | 2017-11-08 | 2018-04-06 | 深圳市携网科技有限公司 | A kind of electronic evidence safety system and method based on block chain technology |
| CN108711051A (en) * | 2018-05-03 | 2018-10-26 | 法信公证云（厦门）科技有限公司 | A kind of intellectual property transaction shared platform and method based on block chain |
| CN108664770A (en) * | 2018-05-22 | 2018-10-16 | 上海七印信息科技有限公司 | There are methods of proof for a kind of high confidence level based on block chain technology |
| CN108881244A (en) * | 2018-06-27 | 2018-11-23 | 中国人民解放军国防科技大学 | Intellectual property protection method for network short texts based on block chains |
| CN109067524A (en) * | 2018-07-31 | 2018-12-21 | 杭州复杂美科技有限公司 | A kind of public private key pair generation method and system |
| CN109035024A (en) * | 2018-08-15 | 2018-12-18 | 杭州链汇通区块链科技有限公司 | Method, system and the storage medium of electronic signature |
| CN109063426A (en) * | 2018-09-20 | 2018-12-21 | 新华智云科技有限公司 | A kind of copyright based on alliance's block chain deposits card sharing method and system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112685795A (en) * | 2020-12-31 | 2021-04-20 | 树根互联技术有限公司 | Digital deposit certificate creating method, digital deposit certificate verifying method and digital deposit certificate system |
| CN112685795B (en) * | 2020-12-31 | 2023-09-05 | 树根互联股份有限公司 | Digital certificate creation method, digital certificate verification method and digital certificate system |
| CN114884663A (en) * | 2021-02-05 | 2022-08-09 | 腾讯科技（深圳）有限公司 | Multimedia object processing method, device, equipment and storage medium |
| CN114884663B (en) * | 2021-02-05 | 2024-06-11 | 腾讯科技（深圳）有限公司 | Multimedia object processing method, device, equipment and storage medium |
| CN112926070A (en) * | 2021-03-02 | 2021-06-08 | 浪潮云信息技术股份公司 | Domestic CPU and operating system based non-secret-related domain and secret-related domain official document exchange method and system |
| CN114971421A (en) * | 2022-07-22 | 2022-08-30 | 中国长江三峡集团有限公司 | Hydropower station operation risk management and control system based on block chain technology |
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