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/*
* RFC 6979 Deterministic Nonce Generator
* (C) 2014 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_RFC6979_GENERATOR_H__
#define BOTAN_RFC6979_GENERATOR_H__
#include <botan/bigint.h>
#include <string>
namespace Botan {
/**
* @param x the secret (EC)DSA key
* @param q the group order
* @param h the message hash already reduced mod q
* @param hash the hash function used to generate h
*/
BigInt BOTAN_DLL generate_rfc6979_nonce(const BigInt& x,
const BigInt& q,
const BigInt& h,
const std::string& hash);
std::string hash_for_deterministic_signature(const std::string& emsa);
}
#endif
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