soft_sign
rv = soft_sign(session_p, input, inlen, output, &hmac_outlen);
rv = soft_sign(&token_session, in, in_len, out, out_len);
CK_RV soft_sign(soft_session_t *, CK_BYTE_PTR, CK_ULONG, CK_BYTE_PTR,
rv = soft_sign(session_p, pData, ulDataLen, pSignature,