Ciphering unit being suitable for compacting instruction set processor

Abstract

The invention belongs to the design technical field of integrated circuits, in particular to an encryption unit which is suitable for RISC processors, comprising a RSA encryption unit, an SHA encryption unit and a RSA / SHA reusable encryption unit. The encryption function units can be integrated into the RISC processor to accelerate the calculation of public-key algorithm and hash functions and obviously lower the cost of hardware; particularly the RSA / SHA reusable encryption unit fulfills the complex cryptography calculation through hardware, and adopts the software for finishing and configuring upper-layer RSA algorithm so as to realize the scalability of data width. The RSA / SHA reusable encryption unit being used for dealing with the most complex calculation of the cryptographic algorithm greatly accelerates the execution efficiency of the cryptographic algorithm, brings no influence on the pipeline structure of the RISC processor and increases no complexity of the hardware, thus having great compatibility with the RISC structure, and having better application prospect in information security field.

Description

technical field [0001] The invention belongs to the field of integrated circuit design, and specifically proposes an encryption unit circuit suitable for a reduced instruction set processor (RISC processor). Background technique [0002] In computer systems and communication networks, cryptographic algorithms are widely used to protect sensitive information. With the rapid development of wireless network communication technology, cryptographic computing processing capability has become an important part of the workload of many wireless devices. However, for high-density and high-intensity cryptographic operations, the relatively limited processing capability has become a bottleneck for improving the performance of handheld devices. Application-specific integrated circuit (ASIC) solutions can meet the functional and performance requirements, but lack flexibility, configurability, and scalability over the life of the device. The general-purpose processor has better flexibili...

AI Technical Summary

Problems solved by technology

Public key algorithms (such as RSA) and hash functions (such as SHA-1) are two major branches of cryptographic algorithms. In traditional design methods, these two algorithms are implemented separately, such as using multiple coprocessors, This will inevitably lead to an increase in cost

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