Module slh 

Top-level SLH-DSA key generation, signing, and verification algorithms. Top-level SLH-DSA algorithms (FIPS 205, Algorithms 18-22, 24).

This module implements the complete SLH-DSA signature lifecycle:

• Key generation (slh_keygen, slh_keygen_internal): generates the master seeds and computes the hypertree root to form the public key.
• Signing (slh_sign, slh_sign_internal): hashes the message, signs it with FORS, then signs the FORS public key with the hypertree.
• Verification (slh_verify, slh_verify_internal): recomputes the FORS public key from the FORS signature, then verifies the hypertree signature against the public key root.

The signature format is: R || SIG_FORS || SIG_HT, where R is the n-byte randomizer, SIG_FORS is the FORS signature, and SIG_HT is the hypertree signature.

Functions

slh_keygen

Generate an SLH-DSA key pair using random seeds from the provided RNG.

slh_keygen_internal

Generate an SLH-DSA key pair from explicit seed material (deterministic).

slh_sign

Sign a message with randomized (hedged) signing.

slh_sign_internal

Internal SLH-DSA signing function.

slh_verify

Verify an SLH-DSA signature against a message and public key.

slh_verify_internal

Internal SLH-DSA verification function.