CN102355353A - Encrypted input method and encrypted communication method and device - Google Patents
Encrypted input method and encrypted communication method and device Download PDFInfo
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- CN102355353A CN102355353A CN2011102315765A CN201110231576A CN102355353A CN 102355353 A CN102355353 A CN 102355353A CN 2011102315765 A CN2011102315765 A CN 2011102315765A CN 201110231576 A CN201110231576 A CN 201110231576A CN 102355353 A CN102355353 A CN 102355353A
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Abstract
The invention provides an encrypted communication method, comprising the steps of: establishing a connection between a communicating user and a communicated user; checking whether a public key of the communicated user exists in a secret key exchange table of the communicating user or not, and if not, performing secret key exchange; encrypting a message input by the communicating user into a ciphertext and sending the ciphertext to the communicated user; and after the communicated user receives ciphertext information, selecting the corresponding ciphertext information by using a cursor so as to automatically deciphering and displaying plain text information. According to the invention, a user can be prevented from information stealing due to peep in an input process, meanwhile, computer viruses, Trojan and other programs can be effectively prevented from stealing the sensitive information of the user, so that the safety of user information is increased.
Description
Technical field
The present invention relates to data information security, specifically, relate to a kind of encrypt input method and with encrypt corresponding encryption communication method and the device of input method.
Background technology
At present, during computer and network are widely used in people's work and live, unavoidably to use input method to carry out word processing, for example use timely communication tool to carry out communication etc. and use a computer just to keep away.Common input method is the input information with form explicit user expressly, and is as shown in Figure 1.This provides the chance of stealing user profile just for Malwares such as computer virus, wooden horse, and for example important information such as Bank Account Number, password possibly bring tremendous loss to the user.Therefore we need a kind of input method that can overcome above problem.
Summary of the invention
To the problems referred to above, the invention provides a kind of encryption input method and encryption communication method and device.The present invention has increased link block on existing input method and communication infrastructure, key change module, encrypting module and deciphering module are used to realize key change, to the user's input information encryption and decryption.
A kind of method of coded communication,
Communication user and being connected between the communication user;
Whether the key change table of inspection communication user exists by the PKI of communication user, if do not exist, then carries out key change;
The information encryption of communication user input is become ciphertext and sends to by communication user;
After being received cipher-text information by communication user, choose corresponding cipher-text information, then decipher and demonstrate cleartext information automatically with cursor.
Preferably, said key exchange process is: if both sides are communication for the first time, then at the communication user end with respectively to be generated a pair of RSA key by the communication user end right, PKI is sent to the other side; If not communication for the first time, the PKI of the RSA key that then will generate before sends to the other side.
Preferably, said PKI all leaves in the key change table after sending to the other side.
Preferably, what the information of said communication user input showed in input frame is expressly, presses after the acknowledgement key, just calls by the PKI of communication user and encrypts.
A kind of device of coded communication comprises
Transport module is used for communication user and is connected between the communication user;
The key change module is used to check whether the key change table of communication user exists by the PKI of communication user, if do not exist, then carries out key change;
Encrypting module is used for information encryption with communication user input and becomes ciphertext and send to by communication user;
Cleartext information is deciphered and demonstrated to deciphering module when being used for after being received cipher-text information by communication user and with cursor, choosing corresponding cipher-text information, automatically.
Preferably, said key exchange process is: if both sides are communication for the first time, then the key change module sends to the other side with PKI at the communication user end with respectively to be generated a pair of RSA key by the communication user end right; If not communication for the first time, the PKI of the RSA key that then will generate before sends to the other side.
Preferably, said PKI all leaves in the key change table after sending to the other side.
Preferably, what the information of said communication user input showed in input frame is expressly, presses after the acknowledgement key, just calls by the PKI of communication user and encrypts.
A kind of encryption input method, the user in input frame, import for expressly, press acknowledgement key after, encrypting module becomes ciphertext with plain text encryption automatically, when the user chose ciphertext with cursor, deciphering module showed decrypt ciphertext expressly corresponding.
Preferably, said encrypting module and said deciphering module adopt RSA cryptographic algorithms.
The present invention can prevent that the user from being peeped by the people and cause information to be stolen in input process, can effectively prevent that computer virus, wooden horse supervisor from stealing user sensitive information simultaneously, improved safety of user information.
Description of drawings
Fig. 1 is common input method workflow
Fig. 2 encrypts the input method workflow
Fig. 3 is the key change flow process
Embodiment
The present invention will be described below in conjunction with accompanying drawing and embodiment.
The user is when using input method of the present invention to import; Literal shows with plaintext in the input method input frame and supplies the user to edit; In case after the user confirmed input, the input method encrypting module can be encrypted literal, the last input information of user shows and transmission with the ciphertext form.If the user will view or edit cipher-text information, the user only needs to choose corresponding cipher-text information with cursor, and input method can be deciphered cipher-text information automatically, demonstrates cleartext information,
In order to realize the encrypted transmission process, on common input method basis, increased following operational module: transport module, key change module, encrypting module and deciphering module.Workflow is as shown in Figure 2.
Transport module is to be used for establishing a connection at communication user and between by communication user, and responsible transport communication both sides' PKI.
The effect of key change module is before the user communicates, to carry out the working key exchange.The key change flow process is as shown in Figure 3.
Party A-subscriber's key change module is at first checked the PKI whether B is arranged in the key change table, if there is the PKI of B in this table, explains that A, B carried out key exchange process in the past, need not exchange.If user A carries out for the first time key exchange process, at first to generate a pair of RSA key right for the key change module so, and PKI is sent to communication user B, otherwise the RSA key PKI that user A will generate in the past sends to communication user B; If user B carries out for the first time key exchange process, at first to generate a pair of RSA key right for the key change module so, and PKI is sent to communication user A, and the key that A sends is kept in the key change table; The PKI that A sends B is saved to the key change table.So far A, B have accomplished the exchange process of communication key.This process is only carried out when A, B communicate by letter for the first time, and communication need not key change more later on.
The effect of encrypting module is an encrypting plaintext information.
Just can use the encryption input method to carry out ciphertext after user A, the B completion key change has communicated by letter.User A is when using the encryption input method to carry out the literal input; What in the input method input frame, show is expressly; In a single day user A presses the affirmation enter key; Encrypt input method and can call encrypting module, encrypting module uses the PKI of user B that cleartext information is encrypted, and generates the cipher-text information of safe transmission.
The effect of deciphering module is a decrypting ciphertext information.
After user B receives the cipher-text information that A sends, use mouse to choose corresponding ciphertext, the deciphering module of encrypting input method can use the private key decrypting ciphertext of user B, obtains corresponding plaintext.
Claims (10)
1. the method for a coded communication is characterized in that:
Communication user and being connected between the communication user;
Whether the key change table of inspection communication user exists by the PKI of communication user, if do not exist, then carries out key change;
The information encryption of communication user input is become ciphertext and sends to by communication user;
After being received cipher-text information by communication user, choose corresponding cipher-text information, then decipher and demonstrate cleartext information automatically with cursor.
2. the method for claim 1, it is characterized in that: said key exchange process is: if both sides are communication for the first time, then at the communication user end with respectively to be generated a pair of RSA key by the communication user end right, PKI is sent to the other side; If not communication for the first time, the PKI of the RSA key that then will generate before sends to the other side.
3. method as claimed in claim 2 is characterized in that: said PKI all leaves in the key change table after sending to the other side.
4. the method for claim 1 is characterized in that: what the information of said communication user input showed in input frame is expressly, presses after the acknowledgement key, just calls by the PKI of communication user and encrypts.
5. the device of a coded communication is characterized in that: comprise
Transport module is used for communication user and is connected between the communication user;
The key change module is used to check whether the key change table of communication user exists by the PKI of communication user, if do not exist, then carries out key change;
Encrypting module is used for information encryption with communication user input and becomes ciphertext and send to by communication user;
Cleartext information is deciphered and demonstrated to deciphering module when being used for after being received cipher-text information by communication user and with cursor, choosing corresponding cipher-text information, automatically.
6. method as claimed in claim 5 is characterized in that: said key exchange process is: if both sides are communication for the first time, then the key change module sends to the other side with PKI at the communication user end with respectively to be generated a pair of RSA key by the communication user end right; If not communication for the first time, the PKI of the RSA key that then will generate before sends to the other side.
7. method as claimed in claim 6 is characterized in that: said PKI all leaves in the key change table after sending to the other side.
8. method as claimed in claim 5 is characterized in that: what the information of said communication user input showed in input frame is expressly, presses after the acknowledgement key, just calls by the PKI of communication user and encrypts.
9. encrypt input method for one kind, it is characterized in that: the user in input frame, import for expressly, press acknowledgement key after, encrypting module becomes ciphertext with plain text encryption automatically, when the user chose ciphertext with cursor, deciphering module showed decrypt ciphertext expressly corresponding.
10. encryption input method as claimed in claim 9 is characterized in that: said encrypting module and said deciphering module adopt RSA cryptographic algorithms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102315765A CN102355353A (en) | 2011-08-12 | 2011-08-12 | Encrypted input method and encrypted communication method and device |
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| CN2011102315765A CN102355353A (en) | 2011-08-12 | 2011-08-12 | Encrypted input method and encrypted communication method and device |
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| CN2011102315765A Pending CN102355353A (en) | 2011-08-12 | 2011-08-12 | Encrypted input method and encrypted communication method and device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104579648A (en) * | 2013-10-16 | 2015-04-29 | 上海华虹集成电路有限责任公司 | Ternary-domain anti-error-attack Tate bilinear pairing computation method |
| CN105430022A (en) * | 2015-12-31 | 2016-03-23 | 宇龙计算机通信科技(深圳)有限公司 | Data input control method and terminal equipment |
| CN105516157A (en) * | 2015-12-16 | 2016-04-20 | 上海交通大学 | Independent encryption based network information safe input system and method |
| CN106411719A (en) * | 2016-11-22 | 2017-02-15 | 北京奇虎科技有限公司 | Method for processing instant messages and equipment thereof |
| CN106570405A (en) * | 2016-11-04 | 2017-04-19 | 北京百度网讯科技有限公司 | Method and apparatus for performing encryption/decryption on text in input method |
| CN106790009A (en) * | 2016-12-13 | 2017-05-31 | 北京奇虎科技有限公司 | Information processing method, device and mobile terminal |
| WO2017107642A1 (en) * | 2015-12-22 | 2017-06-29 | 国民技术股份有限公司 | Text processing method, apparatus and system for secure input method |
| CN111212068A (en) * | 2019-12-31 | 2020-05-29 | 熵加网络科技(北京)有限公司 | Method for encrypting and decrypting characters by input method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579648A (en) * | 2013-10-16 | 2015-04-29 | 上海华虹集成电路有限责任公司 | Ternary-domain anti-error-attack Tate bilinear pairing computation method |
| CN104579648B (en) * | 2013-10-16 | 2018-06-05 | 上海华虹集成电路有限责任公司 | A kind of anti-fault analysis Tate Bilinear map computational methods in ternary domain |
| CN105516157B (en) * | 2015-12-16 | 2019-05-17 | 上海交通大学 | Network information security input system and method based on independent encryption |
| CN105516157A (en) * | 2015-12-16 | 2016-04-20 | 上海交通大学 | Independent encryption based network information safe input system and method |
| WO2017107642A1 (en) * | 2015-12-22 | 2017-06-29 | 国民技术股份有限公司 | Text processing method, apparatus and system for secure input method |
| CN105430022A (en) * | 2015-12-31 | 2016-03-23 | 宇龙计算机通信科技(深圳)有限公司 | Data input control method and terminal equipment |
| CN106570405A (en) * | 2016-11-04 | 2017-04-19 | 北京百度网讯科技有限公司 | Method and apparatus for performing encryption/decryption on text in input method |
| CN106570405B (en) * | 2016-11-04 | 2020-10-27 | 北京百度网讯科技有限公司 | Method and device for encrypting/decrypting characters in input method |
| CN106411719A (en) * | 2016-11-22 | 2017-02-15 | 北京奇虎科技有限公司 | Method for processing instant messages and equipment thereof |
| CN106790009B (en) * | 2016-12-13 | 2020-01-14 | 北京安云世纪科技有限公司 | Information processing method and device and mobile terminal |
| CN106790009A (en) * | 2016-12-13 | 2017-05-31 | 北京奇虎科技有限公司 | Information processing method, device and mobile terminal |
| CN111212068A (en) * | 2019-12-31 | 2020-05-29 | 熵加网络科技(北京)有限公司 | Method for encrypting and decrypting characters by input method |
| CN111212068B (en) * | 2019-12-31 | 2022-02-08 | 北京升鑫网络科技有限公司 | Method for encrypting and decrypting characters by input method |
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Application publication date: 20120215 |