Method for realizing of Hach coprocessor

A coprocessor and processor technology, applied in the field of information security and encryption, can solve problems such as leakage and loss, and achieve the effect of flexible application
CN101202628BInactive Publication Date: 2010-10-20BEIJING CEC HUADA ELECTRONIC DESIGN CO LTD
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING CEC HUADA ELECTRONIC DESIGN CO LTD
Publication Date
2010-10-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a realizing method for a grouping hash coprocessor, which belongs to the field of information security password and can realize data encrypting calculation and participate in signature verification. The grouping hash coprocessor realized by using the method supports a grouping password system and HASH calculation, supports high and low speed data interfaces and a pipeline structure, can realize the functions of single grouping, single hash, first grouping then hash and simultaneous grouping and hash, etc., and has better practicability. The hardware parts used for realizing the functions include a grouping calculation unit, a hash calculation unit, a low speed data interface reading and writing control unit, a high speed data interface treatment unit (consisting of an input FIFO1 and an output FIFO2), a coprocessor core control unit and a double-opening RAM, an interior FIFO3, a command register, a block number register, a parameter register, a grouping input buffer register Inda and a grouping output buffer register Outda, etc.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The utility model relates to the field of information security ciphers, in particular to the hardware realization of grouping and HASH cipher operation co-processors. Background technique

[0002] With the popularization of computer networks, it becomes possible to transmit a large amount of electronic data to all parts of the world through the network. However, in the transmission process of important data with great economic value or related to the fate of the country and the army, any leak or error may cause immeasurable losses. Cryptography is the guarantee and core technology of information security.

[0003] Although public key algorithm encryption can solve many problems that cannot be solved by private key algorithm encryption, in the face of an increasingly large amount of data, from a practical point of view, the speed of private key encryption is often many times faster than that of public key. Cryptographic algorithms are still the mainst...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More