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# Conflicts:
#	README.md
This commit is contained in:
Zhi Guan
2017-02-14 16:12:29 +08:00
parent d2254170b8
commit 43fed1108d
3503 changed files with 320546 additions and 408546 deletions
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153
crypto/bn/bn_print.c
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@@ -1,64 +1,16 @@
/* crypto/bn/bn_print.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <ctype.h>
#include "cryptlib.h"
#include <limits.h>
#include "internal/cryptlib.h"
#include <openssl/buffer.h>
#include "bn_lcl.h"
@@ -71,12 +23,9 @@ char *BN_bn2hex(const BIGNUM *a)
char *buf;
char *p;
if (a->neg && BN_is_zero(a)) {
/* "-0" == 3 bytes including NULL terminator */
buf = OPENSSL_malloc(3);
} else {
buf = OPENSSL_malloc(a->top * BN_BYTES * 2 + 2);
}
if (BN_is_zero(a))
return OPENSSL_strdup("0");
buf = OPENSSL_malloc(a->top * BN_BYTES * 2 + 2);
if (buf == NULL) {
BNerr(BN_F_BN_BN2HEX, ERR_R_MALLOC_FAILURE);
goto err;
@@ -110,18 +59,19 @@ char *BN_bn2dec(const BIGNUM *a)
char *p;
BIGNUM *t = NULL;
BN_ULONG *bn_data = NULL, *lp;
int bn_data_num;
/*-
* get an upper bound for the length of the decimal integer
* num <= (BN_num_bits(a) + 1) * log(2)
* <= 3 * BN_num_bits(a) * 0.1001 + log(2) + 1 (rounding error)
* <= BN_num_bits(a)/10 + BN_num_bits/1000 + 1 + 1
* <= 3 * BN_num_bits(a) * 0.101 + log(2) + 1 (rounding error)
* <= 3 * BN_num_bits(a) / 10 + 3 * BN_num_bits / 1000 + 1 + 1
*/
i = BN_num_bits(a) * 3;
num = (i / 10 + i / 1000 + 1) + 1;
bn_data =
(BN_ULONG *)OPENSSL_malloc((num / BN_DEC_NUM + 1) * sizeof(BN_ULONG));
buf = (char *)OPENSSL_malloc(num + 3);
bn_data_num = num / BN_DEC_NUM + 1;
bn_data = OPENSSL_malloc(bn_data_num * sizeof(BN_ULONG));
buf = OPENSSL_malloc(num + 3);
if ((buf == NULL) || (bn_data == NULL)) {
BNerr(BN_F_BN_BN2DEC, ERR_R_MALLOC_FAILURE);
goto err;
@@ -139,9 +89,12 @@ char *BN_bn2dec(const BIGNUM *a)
if (BN_is_negative(t))
*p++ = '-';
i = 0;
while (!BN_is_zero(t)) {
if (lp - bn_data >= bn_data_num)
goto err;
*lp = BN_div_word(t, BN_DEC_CONV);
if (*lp == (BN_ULONG)-1)
goto err;
lp++;
}
lp--;
@@ -162,16 +115,12 @@ char *BN_bn2dec(const BIGNUM *a)
}
ok = 1;
err:
if (bn_data != NULL)
OPENSSL_free(bn_data);
if (t != NULL)
BN_free(t);
if (!ok && buf) {
OPENSSL_free(buf);
buf = NULL;
}
return (buf);
OPENSSL_free(bn_data);
BN_free(t);
if (ok)
return buf;
OPENSSL_free(buf);
return NULL;
}
int BN_hex2bn(BIGNUM **bn, const char *a)
@@ -189,7 +138,11 @@ int BN_hex2bn(BIGNUM **bn, const char *a)
a++;
}
for (i = 0; isxdigit((unsigned char)a[i]); i++) ;
for (i = 0; i <= (INT_MAX/4) && isxdigit((unsigned char)a[i]); i++)
continue;
if (i == 0 || i > INT_MAX/4)
goto err;
num = i + neg;
if (bn == NULL)
@@ -204,7 +157,7 @@ int BN_hex2bn(BIGNUM **bn, const char *a)
BN_zero(ret);
}
/* i is the number of hex digests; */
/* i is the number of hex digits */
if (bn_expand(ret, i * 4) == NULL)
goto err;
@@ -216,13 +169,8 @@ int BN_hex2bn(BIGNUM **bn, const char *a)
l = 0;
for (;;) {
c = a[j - m];
if ((c >= '0') && (c <= '9'))
k = c - '0';
else if ((c >= 'a') && (c <= 'f'))
k = c - 'a' + 10;
else if ((c >= 'A') && (c <= 'F'))
k = c - 'A' + 10;
else
k = OPENSSL_hexchar2int(c);
if (k < 0)
k = 0; /* paranoia */
l = (l << 4) | k;
@@ -235,10 +183,12 @@ int BN_hex2bn(BIGNUM **bn, const char *a)
}
ret->top = h;
bn_correct_top(ret);
ret->neg = neg;
*bn = ret;
bn_check_top(ret);
/* Don't set the negative flag if it's zero. */
if (ret->top != 0)
ret->neg = neg;
return (num);
err:
if (*bn == NULL)
@@ -260,7 +210,11 @@ int BN_dec2bn(BIGNUM **bn, const char *a)
a++;
}
for (i = 0; isdigit((unsigned char)a[i]); i++) ;
for (i = 0; i <= (INT_MAX/4) && isdigit((unsigned char)a[i]); i++)
continue;
if (i == 0 || i > INT_MAX/4)
goto err;
num = i + neg;
if (bn == NULL)
@@ -278,7 +232,7 @@ int BN_dec2bn(BIGNUM **bn, const char *a)
BN_zero(ret);
}
/* i is the number of digests, a bit of an over expand; */
/* i is the number of digits, a bit of an over expand */
if (bn_expand(ret, i * 4) == NULL)
goto err;
@@ -286,22 +240,25 @@ int BN_dec2bn(BIGNUM **bn, const char *a)
if (j == BN_DEC_NUM)
j = 0;
l = 0;
while (*a) {
while (--i >= 0) {
l *= 10;
l += *a - '0';
a++;
if (++j == BN_DEC_NUM) {
BN_mul_word(ret, BN_DEC_CONV);
BN_add_word(ret, l);
if (!BN_mul_word(ret, BN_DEC_CONV)
|| !BN_add_word(ret, l))
goto err;
l = 0;
j = 0;
}
}
ret->neg = neg;
bn_correct_top(ret);
*bn = ret;
bn_check_top(ret);
/* Don't set the negative flag if it's zero. */
if (ret->top != 0)
ret->neg = neg;
return (num);
err:
if (*bn == NULL)
@@ -312,6 +269,7 @@ int BN_dec2bn(BIGNUM **bn, const char *a)
int BN_asc2bn(BIGNUM **bn, const char *a)
{
const char *p = a;
if (*p == '-')
p++;
@@ -322,13 +280,13 @@ int BN_asc2bn(BIGNUM **bn, const char *a)
if (!BN_dec2bn(bn, p))
return 0;
}
if (*a == '-')
/* Don't set the negative flag if it's zero. */
if (*a == '-' && (*bn)->top != 0)
(*bn)->neg = 1;
return 1;
}
#ifndef OPENSSL_NO_BIO
# ifndef OPENSSL_NO_FP_API
# ifndef OPENSSL_NO_STDIO
int BN_print_fp(FILE *fp, const BIGNUM *a)
{
BIO *b;
@@ -367,7 +325,6 @@ int BN_print(BIO *bp, const BIGNUM *a)
end:
return (ret);
}
#endif
char *BN_options(void)
{