CN112887311A - Safety encryption method and device based on data transmission process - Google Patents
Safety encryption method and device based on data transmission process Download PDFInfo
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- CN112887311A CN112887311A CN202110107448.3A CN202110107448A CN112887311A CN 112887311 A CN112887311 A CN 112887311A CN 202110107448 A CN202110107448 A CN 202110107448A CN 112887311 A CN112887311 A CN 112887311A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
- H04L63/045—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply hybrid encryption, i.e. combination of symmetric and asymmetric encryption
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
Abstract
The invention discloses a security encryption method and a security encryption device based on a data transmission process.A client randomly generates a character string required by dynamic symmetric encryption through a random generation module; the client side uses the asymmetric encryption public key and base64 to successively encrypt the character strings; then, the request parameters are encrypted by adopting symmetric encryption and base64 encryption; obtaining a result by taking the character string as a key parameter of symmetric encryption; the client end splices the three results to obtain request parameters and sends an application to the server end; the client judging module judges whether decryption is available or not according to the instruction, and safety is enhanced. The invention firstly carries out asymmetric encryption, avoids the risk of easy decryption and leakage, and then carries out symmetric encryption on the transmission data by adopting the AES with high operation speed, thereby not only ensuring the safety and reliability of data transmission, but also ensuring the transmission performance.
Description
Technical Field
The invention belongs to the technical field of internet transmission, and particularly relates to a security encryption method and device based on a data transmission process.
Background
At present, in the era of rapid development of the internet and the mobile internet, while great convenience is brought to the life of people, data security becomes a great concern for individuals and enterprises. The categories of data security include: the existing encryption mode usually adopts a single symmetric encryption mode, the secret key is single, dynamic secret key management cannot be realized, if the secret key is stored in a client, the secret key is exposed after the client is decompiled, the security of the encryption scheme is not self-broken, and after the client issues the secret key, the secret key cannot be timely modified and can only be re-issued for solution; asymmetric encryption is also employed: it is also necessary to consider that history compatibility is also an asymmetric encryption mode, which has a slow encryption and decryption speed and is not suitable for encryption of large data, file uploading and the like.
Disclosure of Invention
In order to solve the problems, the invention provides a security encryption method and a security encryption device based on a data transmission process, which are started from the root, firstly, a server side and a client side use one-to-one corresponding asymmetric encryption keys, and before each request, the client side randomly generates a first character string and a second character string required by dynamic symmetric encryption through a random generation module; the client side carries out asymmetric encryption on the first character string through the asymmetric encryption public key, then carries out base64 encryption, carries out base64 encryption on the second character string, obtains a second part result, avoids the risk of being easily decrypted and revealed, and then carries out symmetric encryption on the transmission data by adopting the symmetric encryption with high operation speed and high safety; and the judgment module further effectively controls the decryption behavior of the server through a preset instruction, so that the safety and reliability of data transmission are ensured, and the transmission performance is also ensured.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a security encryption method based on data transmission process includes the following steps:
step 1: the client randomly generates a first character string and a second character string required by dynamic symmetric encryption; step 2: the client side uses an asymmetric encryption public key to perform asymmetric encryption on the first character string, and then performs base64 encryption to obtain a first partial result;
and step 3: the client encrypts the second character string by base64 to obtain a second partial result; and 4, step 4: the client side symmetrically encrypts the request parameters and performs base64 encryption, the first character string and the second character string are used as key parameters for symmetric encryption, and a third part of results are obtained after encryption; and 5: the client side splices the first part result, the second part result and the third part result to obtain a request parameter and sends an application to a server side;
step 6: acquiring the request parameters, splitting the ciphertext, and decrypting;
and 7: judging whether decryption is available or not according to a preset instruction, and if decryption is available, encrypting and returning a result by the server; if the decryption is impossible, plaintext information is returned;
and 8: and the client decrypts by using symmetric encryption after receiving the ciphertext.
Preferably, step 1 further comprises: and the client randomly generates a first character string and a second character string required by dynamic symmetric encryption before requesting, wherein the first character string comprises keys, and the second character string comprises iv.
Preferably, step 6 further comprises: and splitting the ciphertext into three parts respectively corresponding to the first part result, the second part result and the third part result, and sequentially decrypting the three parts.
Further, the first part is decrypted by a private key to obtain the first character string which is symmetrically encrypted, the second part is decrypted by base64 to obtain the second character string, and finally the third part is symmetrically decrypted by the first character string and the second character string to obtain the request parameter.
Preferably, the method further comprises the step 7-1: the preset information comprises the one-to-one correspondence of asymmetric encryption keys used by the server and the client.
Preferably, the method further comprises the step 7-2: and the server side carries out service processing aiming at the current request address and parameters, and encrypts and returns the result by using the first character string and the second character string through symmetric encryption.
Preferably, the method further comprises the step 7-3: the following conditions should be satisfied at the same time when the server side successfully decrypts the data:
the encryption string requested by the client is 3 strings of ciphertexts spliced at 2 points;
the first string is an asymmetric encrypted secret string, and the used encrypted public key corresponds to the secret key of the server;
the second string is encrypted for base 64;
the third string is symmetric encryption, and the used encryption parameters of the first string and the second string are parameters before the encryption of the first string and the second string.
Preferably, the method further comprises the step 7-4: when one of the following conditions is satisfied, the server cannot decrypt successfully:
the asymmetric encryption key used by the client does not correspond to the server;
the client requests 3 strings of ciphertexts with parameters which are not spliced at 2 points;
if the parameters requested by the client are 3 strings of ciphertexts spliced at 2 points, and if one string of ciphertexts fails to be decrypted, the request is a failure request;
the encrypted strings are spliced and combined randomly.
Preferably, the asymmetric encryption public key is issued to the client, and the private key is stored in the server.
The invention also discloses a security encryption device based on the data transmission process, which comprises: a client, comprising:
a random generation module: randomly generating a first character string and a second character string required by dynamic symmetric encryption;
an encryption module: for symmetric or asymmetric encryption of the parameters;
splicing modules: the request parameter is formed by splicing the first part result, the second part result and the third part result;
an application module: sending an application to a server interface;
a receiving module: receiving data information sent by a server interface;
the server side comprises:
an acquisition module: the system is used for acquiring application information;
a processing module: for splitting the ciphertext into portions;
a decryption module: decrypting the encrypted file;
a judging module: judging whether decryption is possible according to preset information;
a transmission module: and transmitting the data information to the client.
The invention has the beneficial effects that: the invention provides a security encryption method and a security encryption device based on a data transmission process, which are started from the root, firstly, a server side and a client side use one-to-one corresponding asymmetric encryption keys, and before each request, the client side randomly generates a first character string and a second character string required by dynamic symmetric encryption through a random generation module; the client side carries out asymmetric encryption on the first character string through the asymmetric encryption public key, then carries out base64 encryption, carries out base64 encryption on the second character string, obtains a second part result, avoids the risk of being easily decrypted and revealed, and then carries out symmetric encryption on the transmission data by adopting the symmetric encryption with high operation speed and high safety; and the judgment module further effectively controls the decryption behavior of the server through a preset instruction, so that the safety and reliability of data transmission are ensured, and the transmission performance is also ensured.
Drawings
FIG. 1 is a schematic view of a processing apparatus according to the present invention;
FIG. 2 is a flow chart of a processing method of the present invention;
wherein: 1-a client; 2-a server; 3-a random generation module; 4-an encryption module; 5-splicing the modules; 6-an application module; 7-a receiving module; 8-an acquisition module; 9-a processing module; 10-a decryption module; 11-a judgment module; 12-transmission module.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
Referring to FIGS. 1-2:
the embodiment of the invention comprises the following steps:
the invention provides a security encryption device based on a data transmission process, which comprises:
client 1, comprising:
the random generation module 3: randomly generating keys and iv required by the dynamic AES;
the encryption module 4: for symmetric or asymmetric encryption of the parameters;
splicing module 5: the first part, the second part and the third part are spliced to form a request parameter ciphertext;
application module 6: sending an application to the interface of the server 2;
the receiving module 7: receiving data information sent by an interface of a server 2;
the server 2 comprises:
the acquisition module 8: the system is used for acquiring application information;
the processing module 9: for splitting the ciphertext into portions;
the decryption module 10: decrypting the encrypted file;
the judging module 11: judging whether decryption is possible according to preset information;
the transmission module 12: data information is transmitted to the client 1.
The invention also discloses a security encryption method based on the data transmission process, which comprises the following steps: step 1: the client 1 randomly generates a first character string key and a second character string iv required by the dynamic AES through a random generation module 3;
step 2: the client 1 firstly carries out asymmetric encryption on the first character string key by the RSA public key through the encryption module 4, and then carries out base64 encryption to obtain a first partial result encrypt _ key;
and step 3: the client 1 performs base64 encryption on the second character string iv through the encryption module 4 to obtain a second partial result;
and 4, step 4: the client 1 uses the encryption module 4 to symmetrically encrypt the request parameter by AES and encrypt the request parameter by base64, the first character string key and the second character string iv are used as key parameters of symmetric encryption by AES, and a third part result encrypt _ iv is obtained after encryption;
and 5: the client 1 splices the first part result, the second part result and the third part result through a splicing module 5 to obtain a request parameter ciphertext, and an application module 6 sends an application to a server 2;
step 6: the acquisition module 8 acquires the request parameters, the processing module 9 splits the ciphertext, and the decryption module 10 decrypts the ciphertext;
and 7: the judging module 11 judges whether decryption is possible according to a preset instruction, and if decryption is possible, the server 2 encrypts and returns a result through the transmission module 12; if the decryption is impossible, plaintext information is returned; and 8: and the receiving module 7 of the client 1 decrypts the ciphertext by using AES after receiving the ciphertext.
Preferably, step 1 further comprises: the client 1 randomly generates the keys, iv required for the dynamic AES by the random generation module 3 before each request.
Preferably, step 6 further comprises: the processing module 9 splits the ciphertext into three parts corresponding to the first part result, the second part result and the third part result, and the decryption module 10 decrypts the three parts in sequence.
Further, the decryption module 10 first decrypts the first part with a private key to obtain the first character string key of the AES, then decrypts the second part with base64 to obtain the second character string iv, and finally, the AES symmetrically decrypts the third part with the key and iv to obtain the request parameter by the obtaining module 8.
Preferably, the method further comprises the step 7-1: the preset information includes that the RSA secret keys used by the server 2 and the client 1 are in one-to-one correspondence.
Preferably, the method further comprises the step 7-2: the server 2 performs service processing on the current request address and parameters, encrypts the result by AES using keys and iv, and transmits the ciphertext to the client 1 through the transmission module 12.
Preferably, the method further comprises the step 7-3: the following conditions should be satisfied at the same time when the server 2 successfully decrypts the data:
the encryption string requested by the client 1 is 3 strings of ciphertext spliced at 2 points;
the first string is a secret string of RSA, and the used encryption public key corresponds to the secret key of the server 2;
the second string is encrypted for base 64;
the third string is AES and the encryption parameters key and iv used are the parameters of the first and second strings before encryption.
Preferably, the method further comprises the step 7-4: when one of the following conditions is satisfied, the server 2 cannot successfully decrypt:
the secret key of the RSA used by the client 1 does not correspond to the server 2;
the client 1 requests 3 strings of ciphertexts with parameters which are not spliced at 2 points;
if the parameters requested by the client 1 are 3 strings of ciphertexts spliced at 2 points, but one string of ciphertexts fails to be decrypted, the request is a failure request;
the encrypted strings are spliced and combined randomly.
Preferably, an RSA public key is issued to the client 1, and a private key is stored in the server 2.
The invention has the beneficial effects that: starting from the root, firstly, using one-to-one corresponding asymmetric encryption keys at a server and a client, and before each request, the client randomly generates a first character string and a second character string required by dynamic symmetric encryption through a random generation module; the client side carries out asymmetric encryption on the first character string through the asymmetric encryption public key, then carries out base64 encryption, carries out base64 encryption on the second character string, obtains a second part result, avoids the risk of being easily decrypted and revealed, and then carries out symmetric encryption on the transmission data by adopting the symmetric encryption with high operation speed and high safety; and the judgment module further effectively controls the decryption behavior of the server through a preset instruction, so that the safety and reliability of data transmission are ensured, and the transmission performance is also ensured.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (10)
1. A security encryption method based on data transmission process is characterized by comprising the following steps:
step 1: the client randomly generates a first character string and a second character string required by dynamic symmetric encryption;
step 2: the client side uses an asymmetric encryption public key to perform asymmetric encryption on the first character string, and then performs base64 encryption to obtain a first partial result;
and step 3: the client encrypts the second character string by base64 to obtain a second partial result;
and 4, step 4: the client side symmetrically encrypts the request parameters and performs base64 encryption, the first character string and the second character string are used as key parameters for symmetric encryption, and a third part of results are obtained after encryption;
and 5: the client side splices the first part result, the second part result and the third part result to obtain a request parameter and sends an application to a server side;
step 6: acquiring the request parameters, splitting the ciphertext, and decrypting;
and 7: judging whether decryption is available or not according to a preset instruction, and if decryption is available, encrypting and returning a result by the server; if the decryption is impossible, plaintext information is returned;
and 8: and the client decrypts by using symmetric encryption after receiving the ciphertext.
2. The secure encryption method based on data transmission process according to claim 1, characterized in that: the step 1 further comprises: and the client randomly generates a first character string and a second character string required by dynamic symmetric encryption before requesting, wherein the first character string comprises keys, and the second character string comprises iv.
3. The secure encryption method based on data transmission process according to claim 1, characterized in that: step 6 also includes: and splitting the ciphertext into three parts respectively corresponding to the first part result, the second part result and the third part result, and sequentially decrypting the three parts.
4. A secure encryption method based on data transmission process according to claim 3, characterized in that:
firstly, the first part is decrypted by a private key to obtain the first character string which is symmetrically encrypted, then the second part is decrypted by base64 to obtain the second character string, and finally, the third part is symmetrically decrypted by the first character string and the second character string to obtain the request parameter.
5. The secure encryption method based on data transmission process according to claim 1, characterized in that: further comprising the step 7-1: the preset information comprises the one-to-one correspondence of asymmetric encryption keys used by the server and the client.
6. The secure encryption method based on data transmission process according to claim 1, characterized in that: further comprising step 7-2: and the server side carries out service processing aiming at the current request address and parameters, and encrypts and returns the result by using the first character string and the second character string through symmetric encryption.
7. The secure encryption method based on data transmission process according to claim 1, characterized in that: further comprising step 7-3:
the following conditions should be satisfied at the same time when the server side successfully decrypts the data:
the encryption string requested by the client is 3 strings of ciphertexts spliced at 2 points;
the first string is an asymmetric encrypted secret string, and the used encrypted public key corresponds to the secret key of the server;
the second string is encrypted for base 64;
the third string is symmetric encryption, and the used encryption parameters of the first string and the second string are parameters before the encryption of the first string and the second string.
8. The secure encryption method based on data transmission process according to claim 1, characterized in that: further comprising the steps of 7-4:
when one of the following conditions is satisfied, the server cannot decrypt successfully:
the asymmetric encryption key used by the client does not correspond to the server;
the client requests 3 strings of ciphertexts with parameters which are not spliced at 2 points;
if the parameters requested by the client are 3 strings of ciphertexts spliced at 2 points, and if one string of ciphertexts fails to be decrypted, the request is a failure request;
the encrypted strings are spliced and combined randomly.
9. The secure encryption method based on data transmission process according to claim 1, characterized in that: and the asymmetric encryption public key is issued to the client, and the private key is stored in the server.
10. A secure encryption apparatus based on data transmission process, the apparatus comprising:
a client, comprising:
a random generation module: randomly generating a first character string and a second character string required by dynamic symmetric encryption;
an encryption module: for symmetric or asymmetric encryption of the parameters;
splicing modules: the request parameter is formed by splicing the first part result, the second part result and the third part result;
an application module: sending an application to a server interface;
a receiving module: receiving data information sent by a server interface;
the server side comprises:
an acquisition module: the system is used for acquiring application information;
a processing module: for splitting the ciphertext into portions;
a decryption module: decrypting the encrypted file;
a judging module: judging whether decryption is possible according to preset information;
a transmission module: and transmitting the data information to the client.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110107448.3A CN112887311A (en) | 2021-01-26 | 2021-01-26 | Safety encryption method and device based on data transmission process |
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| CN202110107448.3A CN112887311A (en) | 2021-01-26 | 2021-01-26 | Safety encryption method and device based on data transmission process |
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| CN114978711A (en) * | 2022-05-25 | 2022-08-30 | 山东国子软件股份有限公司 | Data transmission method and system for symmetric encryption of dynamic secret key |
| CN116684095A (en) * | 2023-08-02 | 2023-09-01 | 杭州希智电子有限公司 | Sensor data encryption method and system based on Internet of things |
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