SphincsTreeNode xmss_sign_and_pkgen(StrongSpan< SphincsXmssSignature > out_sig, const SphincsTreeNode &message, const SphincsSecretSeed &secret_seed, Sphincs_Address &wots_addr, Sphincs_Address &tree_addr, std::optional< TreeNodeIndex > idx_leaf, const Sphincs_Parameters ¶ms, Sphincs_Hash_Functions &hashes)
FIPS 205, Algorithm 10: xmss_sign.