OpenSSL 3.6 Promises LMS Signature Verification Support, Alpha Out Now

OpenSSL 3.6 promises LMS signature verification support as per [SP 800-208] in both the FIPS and default providers, and support for EVP_SKEY opaque symmetric key objects to the key derivation and key exchange provider methods via EVP_KDF_CTX_set_SKEY(), EVP_KDF_derive_SKEY(), and EVP_PKEY_derive_SKEY() functions.