mirror of
https://github.com/trezor/trezor-firmware.git
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extract base58 functions to separate source file
This commit is contained in:
parent
612f5ab050
commit
4b1211e0ae
@ -1,4 +1,4 @@
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set(SOURCES bignum.c ecdsa.c secp256k1.c sha2.c rand.c hmac.c bip32.c ripemd160.c bip39.c pbkdf2.c)
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set(SOURCES bignum.c ecdsa.c secp256k1.c sha2.c rand.c hmac.c bip32.c ripemd160.c bip39.c pbkdf2.c base58.c)
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if(MSVC)
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set_source_files_properties(${SOURCES} PROPERTIES LANGUAGE CXX)
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endif(MSVC)
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2
Makefile
2
Makefile
@ -1,6 +1,6 @@
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CC = gcc
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CFLAGS = -Wall -Wextra -Os
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OBJS = bignum.o ecdsa.o secp256k1.o sha2.o rand.o hmac.o bip32.o ripemd160.o bip39.o pbkdf2.o
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OBJS = bignum.o ecdsa.o secp256k1.o sha2.o rand.o hmac.o bip32.o ripemd160.o bip39.o pbkdf2.o base58.o
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OBJS += aescrypt.o aeskey.o aestab.o
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all: tests test-openssl
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125
base58.c
Normal file
125
base58.c
Normal file
@ -0,0 +1,125 @@
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/**
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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 <string.h>
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#include "base58.h"
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#include "sha2.h"
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int base58_encode_check(const uint8_t *data, int len, char *str)
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{
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int outlen;
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switch (len) {
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case 78: // xpub/xprv 78
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outlen = 111;
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break;
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case 34: // WIF privkey 1+32
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outlen = 51;
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break;
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case 21: // address 1+20
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outlen = 34;
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break;
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default:
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return 0;
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}
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uint8_t mydata[82], hash[32];
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sha256_Raw(data, len, hash);
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sha256_Raw(hash, 32, hash);
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memcpy(mydata, data, len);
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memcpy(mydata + len, hash, 4); // checksum
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uint32_t rem, tmp;
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const char code[] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
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int i, j;
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for (j = 0; j < outlen; j++) {
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rem = mydata[0] % 58;
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mydata[0] /= 58;
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for (i = 1; i < len + 4; i++) {
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tmp = rem * 24 + mydata[i]; // 2^8 == 4*58 + 24
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mydata[i] = rem * 4 + (tmp / 58);
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rem = tmp % 58;
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}
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str[outlen - 1 - j] = code[rem];
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}
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str[outlen] = 0;
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return outlen;
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}
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int base58_decode_check(const char *str, uint8_t *data)
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{
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const char decode[] = {
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3,
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4, 5, 6, 7, 8, -1, -1, -1, -1, -1, -1, -1, 9, 10, 11,
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12, 13, 14, 15, 16, -1, 17, 18, 19, 20, 21, -1, 22,
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23, 24, 25, 26, 27, 28, 29, 30, 31, 32, -1, -1, -1,
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-1, -1, -1, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
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43, -1, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
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55, 56, 57
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};
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uint8_t mydata[82], hash[32];
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int j, k, outlen;
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switch (strlen(str)) {
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case 111: // xpub/xprv
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outlen = 78;
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break;
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case 51: // WIF privkey
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outlen = 34;
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break;
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case 27: // address
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case 28:
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case 29:
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case 30:
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case 31:
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case 32:
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case 33:
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case 34:
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outlen = 21;
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break;
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default:
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return 0;
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}
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memset(mydata, 0, sizeof(mydata));
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while (*str) {
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if (*str < 0 || *str >= (int)sizeof(decode)) { // invalid character
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return 0;
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}
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k = decode[(int)*str];
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if (k == -1) { // invalid character
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return 0;
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}
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for (j = outlen + 4 - 1; j >= 0; j--) {
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k += mydata[j] * 58;
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mydata[j] = k & 0xFF;
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k >>= 8;
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}
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str++;
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}
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sha256_Raw(mydata, outlen, hash);
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sha256_Raw(hash, 32, hash);
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if (memcmp(mydata + outlen, hash, 4)) { // wrong checksum
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return 0;
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}
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memcpy(data, mydata, outlen);
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return outlen;
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}
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32
base58.h
Normal file
32
base58.h
Normal file
@ -0,0 +1,32 @@
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/**
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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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#ifndef __BASE58_H__
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#define __BASE58_H__
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#include <stdint.h>
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int base58_encode_check(const uint8_t *data, int len, char *str);
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int base58_decode_check(const char *str, uint8_t *data);
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#endif
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62
bip32.c
62
bip32.c
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#include "bip32.h"
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#include "sha2.h"
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#include "ripemd160.h"
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#include "base58.h"
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void hdnode_from_xpub(uint32_t depth, uint32_t fingerprint, uint32_t child_num, uint8_t *chain_code, uint8_t *public_key, HDNode *out)
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{
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@ -145,10 +146,7 @@ void hdnode_fill_public_key(HDNode *node)
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void hdnode_serialize(const HDNode *node, uint32_t version, char use_public, char *str)
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{
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uint8_t node_data[82], a[32];
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int i,j;
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uint32_t rem, tmp;
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const char code[] = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
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uint8_t node_data[78];
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write_be(node_data, version);
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node_data[4] = node->depth;
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write_be(node_data + 5, node->fingerprint);
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@ -160,20 +158,7 @@ void hdnode_serialize(const HDNode *node, uint32_t version, char use_public, cha
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node_data[45] = 0;
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memcpy(node_data + 46, node->private_key, 32);
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}
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sha256_Raw(node_data, 78, a);
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sha256_Raw(a, 32, a);
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memcpy(node_data + 78, a, 4); // checksum
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for (j = 110; j >= 0; j--) {
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rem = node_data[0] % 58;
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node_data[0] /= 58;
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for (i = 1; i < 82; i++) {
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tmp = rem * 24 + node_data[i]; // 2^8 == 4*58 + 24
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node_data[i] = rem * 4 + (tmp / 58);
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rem = tmp % 58;
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}
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str[j] = code[rem];
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}
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str[111] = 0;
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base58_encode_check(node_data, 78, str);
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}
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void hdnode_serialize_public(const HDNode *node, char *str)
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@ -189,55 +174,22 @@ void hdnode_serialize_private(const HDNode *node, char *str)
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// check for validity of curve point in case of public data not performed
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int hdnode_deserialize(const char *str, HDNode *node)
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{
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uint8_t node_data[82], a[32];
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const char decode[] = {
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, 0, 1, 2, 3,
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4, 5, 6, 7, 8, -1, -1, -1, -1, -1, -1, -1, 9, 10, 11,
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12, 13, 14, 15, 16, -1, 17, 18, 19, 20, 21, -1, 22,
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23, 24, 25, 26, 27, 28, 29, 30, 31, 32, -1, -1, -1,
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-1, -1, -1, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42,
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43, -1, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,
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55, 56, 57
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};
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uint8_t node_data[78];
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memset(node, 0, sizeof(HDNode));
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memset(node_data, 0, sizeof(node_data));
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if (strlen(str) != 111) { // invalid data length
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if (!base58_decode_check(str, node_data)) {
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return -1;
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}
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int i, j, k;
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for (i = 0; i < 111; i++) {
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if (str[i] < 0 || str[i] >= (int)sizeof(decode)) { // invalid character
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return -2;
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}
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k = decode[(int)str[i]];
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if (k == -1) { // invalid character
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return -2;
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}
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for (j = 81; j >= 0; j--) {
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k += node_data[j] * 58;
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node_data[j] = k & 0xFF;
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k >>= 8;
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}
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}
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sha256_Raw(node_data, 78, a);
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sha256_Raw(a, 32, a);
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if (memcmp(node_data + 78, a, 4)) { // wrong checksum
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return -3;
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}
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uint32_t version = read_be(node_data);
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if (version == 0x0488B21E) { // public node
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memcpy(node->public_key, node_data + 45, 33);
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} else if (version == 0x0488ADE4) { // private node
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if (node_data[45]) { // invalid data
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return -4;
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return -2;
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}
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memcpy(node->private_key, node_data + 46, 32);
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hdnode_fill_public_key(node);
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} else {
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return -5; // invalid version
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return -3; // invalid version
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}
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node->depth = node_data[4];
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node->fingerprint = read_be(node_data + 5);
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