OpenSSL Hash Benchmarks

I compiled OpenSSL 3.0.3 and then benchmarked the following cryptographic hash functions:

• MD5 (broken, don’t use!)
• SHA-1 (broken, don’t use!)
• SHA-256
• SHA-512
• BLAKE2s
• BLAKE2b
• SHA3-256
• SHA3-512

Note: MD5 and SHA-1 are included for reference, but both are broken and should not be used.

Test systems:

• Lenovo Thinkpad X1 Carbon (9th Gen): i7-1185G7 CPU with accelerated SHA-1 and SHA-256 instructions.
• Raspberry Pi 4B: Cortex-A72 CPU, which does not support the ARMv8 crypto extensions.

Detailed results, build scripts, and documentation are available in the companion GitHub repository.

Thinkpad X1 Carbon Results

Notes:

• The accelerated SHA-1 and SHA-256 instructions are clearly visible in the results.
• BLAKE2b does quite well, considering.

Raspberry Pi 4B Results

Notes:

• BLAKE2b is clearly the fastest on the Cortex-A72.
• BLAKE2b is faster than BLAKE2s because the former is optimized for 32-bit CPUs, and the latter is optimized for 64-bit CPUs.
• SHA512 is faster than SHA256 because it has a slight edge on 64-bit systems.