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https://github.com/trezor/trezor-firmware.git
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c70e440128
This allows us to finely control when to use a single hash or a double hash in various places. For example, Bitcoin signatures use double SHA256, but Decred signatures use a single BLAKE256. However, both use double hashes for Base58.
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/**
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* Copyright (c) 2013-2014 Tomas Dzetkulic
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* Copyright (c) 2013-2014 Pavol Rusnak
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
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* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "secp256k1.h"
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const ecdsa_curve secp256k1 = {
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/* .prime */ {
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/*.val =*/ {0x3ffffc2f, 0x3ffffffb, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0xffff}
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},
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/* G */ {
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/*.x =*/{/*.val =*/{0x16f81798, 0x27ca056c, 0x1ce28d95, 0x26ff36cb, 0x70b0702, 0x18a573a, 0xbbac55a, 0x199fbe77, 0x79be}},
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/*.y =*/{/*.val =*/{0x3b10d4b8, 0x311f423f, 0x28554199, 0x5ed1229, 0x1108a8fd, 0x13eff038, 0x3c4655da, 0x369dc9a8, 0x483a}}
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},
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/* order */ {
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/*.val =*/{0x10364141, 0x3f497a33, 0x348a03bb, 0x2bb739ab, 0x3ffffeba, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0xffff}
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},
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/* order_half */ {
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/*.val =*/{0x281b20a0, 0x3fa4bd19, 0x3a4501dd, 0x15db9cd5, 0x3fffff5d, 0x3fffffff, 0x3fffffff, 0x3fffffff, 0x7fff}
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},
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/* a */ 0,
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/* b */ {
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/*.val =*/{7}
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}
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#if USE_PRECOMPUTED_CP
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,
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/* cp */ {
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#include "secp256k1.table"
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}
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#endif
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};
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const curve_info secp256k1_info = {
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.bip32_name = "Bitcoin seed",
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.params = &secp256k1,
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.hasher_bip32 = HASHER_SHA2,
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.hasher_base58 = HASHER_SHA2D,
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.hasher_sign = HASHER_SHA2D,
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.hasher_pubkey = HASHER_SHA2,
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};
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const curve_info secp256k1_decred_info = {
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.bip32_name = "Decred seed",
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.params = &secp256k1,
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.hasher_bip32 = HASHER_BLAKE,
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.hasher_base58 = HASHER_BLAKED,
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.hasher_sign = HASHER_BLAKE,
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.hasher_pubkey = HASHER_BLAKE,
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};
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