klasnordmark / sha512

Verilog implementation of the SHA-512 hash function.

sha512

Verilog implementation of the SHA-512 hash function. This implementation complies with the functionality in NIST FIPS 180-4. The supports the SHA-512 variants SHA-512/224, SHA-512/256, SHA-384 and SHA-512.

Status

The core is completed and is considered mature. The core has been used in more than one FPGA design.

Implementation details

The core uses a sliding window with 16 64-bit registers for the W memory. The top level wrapper contains flag control registers for init and next that automatically resets. This means that the flags must be set for every block to be processed.

FuseSoC

This core is supported by the FuseSoC core package manager and build system. Some quick FuseSoC instructions:

Install FuseSoC

pip install fusesoc

Create and enter a new workspace

mkdir workspace && cd workspace

Register sha512 as a library in the workspace

fusesoc library add sha512 /path/to/sha512

...if repo is available locally or... ...to get the upstream repo

fusesoc library add sha512 https://github.com/secworks/sha512

Run tb_sha512 testbench

fusesoc run --target=tb_sha512 secworks:crypto:sha512

Run with modelsim instead of default tool (icarus)

fusesoc run --target=tb_sha512 --tool=modelsim secworks:crypto:sha512

FPGA-results

Xilinx FPGAs

Implementation results using ISE 14.7.

Artix-7

• xc7a200t-3fbg484
• 4869 Slice LUTs
• 1575 Slices
• 3918 regs
• 96 MHz

Spartan-6

• xc6slx45-3csg324
• 4333 LUTs
• 1300 Slices
• 3853 regs
• 57 MHz

Altera FPGAs

Altera Cyclone V GX

• 2923 ALMs
• 3609 Registers
• 80 MHz max clock frequency