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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/securerom/ecverify.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2016,2017 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/*----------------------------------------------------------------------
* (C) COPYRIGHT INTERNATIONAL BUSINESS MACHINES CORPORATION 2010
* ALL RIGHTS RESERVED
* IBM Research, Zurich and IBM Crypto Competency Center, Copenhagen
*----------------------------------------------------------------------
* Author: Tamas Visegrady (tvi@zurich.ibm.com)
*----------------------------------------------------------------------*/
#if !defined(__ECVERIFY_H__)
#define __ECVERIFY_H__
/** ECDSA verification on fixed curve
*/
#define EC_HASHBYTES 64 /* SHA-256 */
#define EC_COORDBYTES 66 /* P-521 */
typedef uint8_t ecc_key_t[2*EC_COORDBYTES];
typedef uint8_t ecc_signature_t[2*EC_COORDBYTES];
/** Returns positive if signature verified
* zero if parameters are valid but signature verification fails
* negative if parameters (such as point) are invalid
*/
int ec_verify (const uint8_t *publicpt, /* 2*EC_COORDBYTES */
const uint8_t *hash, /* EC_HASHBYTES */
const uint8_t *signature) ; /* 2*EC_COORDBYTES */
#define NDEBUG
#endif /* defined(__ECVERIFY_H__) */
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