Last change
on this file since 331 was 331, checked in by coas-nagasima, 6 years ago |
prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
|
-
Property svn:eol-style
set to
native
-
Property svn:mime-type
set to
text/x-csrc
|
File size:
1.9 KB
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Rev | Line | |
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[331] | 1 | /*
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| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include "internal/cryptlib.h"
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| 12 | #include "bn_lcl.h"
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| 13 |
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| 14 | int BN_bn2mpi(const BIGNUM *a, unsigned char *d)
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| 15 | {
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| 16 | int bits;
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| 17 | int num = 0;
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| 18 | int ext = 0;
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| 19 | long l;
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| 20 |
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| 21 | bits = BN_num_bits(a);
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| 22 | num = (bits + 7) / 8;
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| 23 | if (bits > 0) {
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| 24 | ext = ((bits & 0x07) == 0);
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| 25 | }
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| 26 | if (d == NULL)
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| 27 | return (num + 4 + ext);
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| 28 |
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| 29 | l = num + ext;
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| 30 | d[0] = (unsigned char)(l >> 24) & 0xff;
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| 31 | d[1] = (unsigned char)(l >> 16) & 0xff;
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| 32 | d[2] = (unsigned char)(l >> 8) & 0xff;
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| 33 | d[3] = (unsigned char)(l) & 0xff;
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| 34 | if (ext)
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| 35 | d[4] = 0;
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| 36 | num = BN_bn2bin(a, &(d[4 + ext]));
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| 37 | if (a->neg)
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| 38 | d[4] |= 0x80;
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| 39 | return (num + 4 + ext);
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| 40 | }
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| 41 |
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| 42 | BIGNUM *BN_mpi2bn(const unsigned char *d, int n, BIGNUM *ain)
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| 43 | {
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| 44 | long len;
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| 45 | int neg = 0;
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| 46 | BIGNUM *a = NULL;
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| 47 |
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| 48 | if (n < 4) {
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| 49 | BNerr(BN_F_BN_MPI2BN, BN_R_INVALID_LENGTH);
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| 50 | return NULL;
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| 51 | }
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| 52 | len = ((long)d[0] << 24) | ((long)d[1] << 16) | ((int)d[2] << 8) | (int)
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| 53 | d[3];
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| 54 | if ((len + 4) != n) {
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| 55 | BNerr(BN_F_BN_MPI2BN, BN_R_ENCODING_ERROR);
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| 56 | return NULL;
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| 57 | }
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| 58 |
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| 59 | if (ain == NULL)
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| 60 | a = BN_new();
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| 61 | else
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| 62 | a = ain;
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| 63 |
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| 64 | if (a == NULL)
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| 65 | return NULL;
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| 66 |
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| 67 | if (len == 0) {
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| 68 | a->neg = 0;
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| 69 | a->top = 0;
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| 70 | return a;
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| 71 | }
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| 72 | d += 4;
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| 73 | if ((*d) & 0x80)
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| 74 | neg = 1;
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| 75 | if (BN_bin2bn(d, (int)len, a) == NULL) {
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| 76 | if (ain == NULL)
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| 77 | BN_free(a);
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| 78 | return NULL;
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| 79 | }
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| 80 | a->neg = neg;
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| 81 | if (neg) {
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| 82 | BN_clear_bit(a, BN_num_bits(a) - 1);
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| 83 | }
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| 84 | bn_check_top(a);
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| 85 | return a;
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| 86 | }
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