Top pick
TLS and cryptography toolkit underpinning HTTPS, SSH adjacency, and certificate workflows.
tlscryptolibrary
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4 tools match your filters
Top pick
GPU-accelerated password recovery and hash cracking supporting hundreds of algorithms and attack modes.
pentestpasswordscryptogpuctf
Also strong
CLI probe of TLS/SSL ciphers, protocols, headers, and common misconfigurations on any TCP listener.
pentesttlssslbashcrypto
Honorable mention
Automatic decryption and decoding helper using heuristics and ML.
cryptoctf