Key embedded password

Abstract

The invention discloses a key embedded password which comprises key embedded algorithm modules and a password system formed by the key embedded algorithm modules. The key embedded algorithm modules combine a coding / decoding function and a key generation function into a whole, and keys are configured in the discrete algorithm modules in a dissymmetrical way and a symmetrical way. The key algorithm modules are divided into generating function modules and subfunction modules. The password system comprises a management center and a plurality of user terminals, the management center generates the subfunction modules with mutually different key configuration through the generating function modules and distributes the subfunction modules to the users, and key distribution is automatically completed in the process. The keys are provided with uniformly set key numbers, and can be operated by the users through the key numbers. A secret key communication mechanism is established for the password system through the key embedded algorithm modules and the key configuration thereof. The system has the advantages that the system provides three information safety functions: privacy, identifiability and incontestability, but the keys are not transmitted and directly published among the users.

Description

technical field [0001] The invention relates to key embedded ciphers and belongs to the technical field of information security. Background technique [0002] Cryptography is the core technology to ensure network information security. The ciphers currently used in practice can be divided into two categories according to the different key forms: symmetric cryptography and asymmetric cryptography (public key cryptography). [0003] In a symmetric cryptosystem, the same key is used for encryption and decryption. The security of this type of cipher mainly depends on the secrecy of the key, and the communication parties generally need to transfer the key through a secure channel. The main advantage of symmetric cryptography is that the algorithm is simple and the operation speed is fast, but the disadvantage is that the key management is complicated, which is also the biggest problem of symmetric cryptography in practical applications. [0004] In a public key cryptography syst...

AI Technical Summary

Problems solved by technology

These two problems are actually the fundamental reasons for the vulnerability of existing passwords (difficult to eliminate security holes), application limitations (poor use flexibility, complex system management) and high operating costs.

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