A universal solution that effectively accelerates the SHA2-256 hash function conforming with FIPS PUB 180-4 is the SHA2-256 bridge to APB, AHB, and AXI bus. It has two modes for computing message digests: 256-bit and 224-bit. A message length of up to 264 +/- 1 bit may be entered. It also natively supports the SHA2-256 HMAC (Keyed-Hash Message Authentication Code), a cryptographic function defined in RFC 2104. This depends on the core settings. This IP is appropriate for secure communication in general as well as for verifying data integrity and authenticity in digital signature methods. It may also be applied to speed up calculations related to cryptocurrencies.
FIPS PUB 180-4 compliant SHA2-256 function
RFC 2104 compliant HMAC mode native support
SHA2 224 and 256 bit modes support
Secure storage for precomputed HMAC keys
Hash/HMAC context swapping
Internal, automatic padding module
Binary message resolution support
Flexible data read/write modes
Software driver with OpenSSL/MbedTLS interface ready
Available system interface wrappers:
AMBA – APB / AHB / AXI Bus
Altera Avalon Bus
Xilinx OPB Bus
Deliverables
Source code:
VERILOG test bench environment
Technical documentation
Synthesis scripts
Example application
Technical support
Applications
Digital signature
Data integrity
Key derivation
TLS/SSH/PGP IPsec communication
