78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
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/*
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* Copyright (c) 2012-2020 MIRACL UK Ltd.
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*
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* This file is part of MIRACL Core
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* (see https://github.com/miracl/core).
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef CONFIG_CURVE_C25519_H
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#define CONFIG_CURVE_C25519_H
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#include"core.h"
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#include"config_field_F25519.h"
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// ECP stuff
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#define CURVETYPE_C25519 MONTGOMERY
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#define CURVE_A_C25519 486662
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#define PAIRING_FRIENDLY_C25519 NOT_PF
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#define CURVE_SECURITY_C25519 128
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#define HTC_ISO_C25519 0
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// Permit alternate compression method if 3 spare top bits in field representation
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// Must be set manually
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// #define ALLOW_ALT_COMPRESS_C25519
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#if PAIRING_FRIENDLY_C25519 != NOT_PF
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#define HTC_ISO_G2_C25519 0
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#define USE_GLV_C25519 /**< Note this method is patented (GLV), so maybe you want to comment this out */
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#define USE_GS_G2_C25519 /**< Well we didn't patent it :) But may be covered by GLV patent :( */
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#define USE_GS_GT_C25519 /**< Not patented, so probably safe to always use this */
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#define POSITIVEX 0
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#define NEGATIVEX 1
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#define SEXTIC_TWIST_C25519
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#define SIGN_OF_X_C25519
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#define ATE_BITS_C25519
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#define G2_TABLE_C25519
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#endif
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#if CURVE_SECURITY_C25519 == 128
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#define AESKEY_C25519 16 /**< Symmetric Key size - 128 bits */
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#define HASH_TYPE_C25519 SHA256 /**< Hash type */
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#endif
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#if CURVE_SECURITY_C25519 == 192
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#define AESKEY_C25519 24 /**< Symmetric Key size - 192 bits */
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#define HASH_TYPE_C25519 SHA384 /**< Hash type */
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#endif
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#if CURVE_SECURITY_C25519 == 256
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#define AESKEY_C25519 32 /**< Symmetric Key size - 256 bits */
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#define HASH_TYPE_C25519 SHA512 /**< Hash type */
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#endif
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namespace C25519_BIG = B256_56;
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namespace C25519_FP = F25519;
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#endif
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