diff options
Diffstat (limited to 'src/include/securerom/ecverify.H')
| -rw-r--r-- | src/include/securerom/ecverify.H | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/include/securerom/ecverify.H b/src/include/securerom/ecverify.H new file mode 100644 index 000000000..b7c707803 --- /dev/null +++ b/src/include/securerom/ecverify.H @@ -0,0 +1,55 @@ +/* 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__) */ |
