abc/GmSSL
1
0
Fork 0
mirror of https://github.com/guanzhi/GmSSL.git synced 2026-05-13 11:56:28 +08:00
Code Issues Packages Projects Releases Wiki Activity

first step of v2 final release

Browse Source
This commit is contained in:
Zhi Guan
2017-11-05 21:00:36 +08:00
parent 480b9e8d88
commit 27bde477a5
395 changed files with 26341 additions and 31364 deletions
Download Patch File Download Diff File Expand all files Collapse all files

53
crypto/base58/base58.c Normal file → Executable file
View File

@@ -53,12 +53,11 @@
* under the terms of the standard MIT license. See COPYING for more details.
*/
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include <sys/types.h>
#include <openssl/err.h>
#include <openssl/e_os2.h>
#include <openssl/base58.h>
static const int8_t b58digits_map[] = {
@@ -78,23 +77,28 @@ int base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
const unsigned char *b58u = (void*)b58;
unsigned char *binu = bin;
size_t outisz = (binsz + 3) / 4;
uint32_t outi[outisz];
//uint32_t outi[outisz];
uint32_t *outi = NULL;
uint64_t t;
uint32_t c;
size_t i, j;
uint8_t bytesleft = binsz % 4;
uint32_t zeromask = bytesleft ? (0xffffffff << (bytesleft * 8)) : 0;
unsigned zerocount = 0;
if (!b58sz)
b58sz = strlen(b58);
if (!(outi = OPENSSL_malloc(outisz))) {
return 0;
}
memset(outi, 0, outisz * sizeof(*outi));
// Leading zeros, just count
for (i = 0; i < b58sz && b58u[i] == '1'; ++i)
++zerocount;
for ( ; i < b58sz; ++i)
{
if (b58u[i] & 0x80) {
@@ -119,7 +123,7 @@ int base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
// Output number too big (last int32 filled too far)
return 0;
}
j = 0;
switch (bytesleft) {
case 3:
@@ -132,7 +136,7 @@ int base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
default:
break;
}
for (; j < outisz; ++j)
{
*(binu++) = (outi[j] >> 0x18) & 0xff;
@@ -140,7 +144,7 @@ int base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
*(binu++) = (outi[j] >> 8) & 0xff;
*(binu++) = (outi[j] >> 0) & 0xff;
}
// Count canonical base58 byte count
binu = bin;
for (i = 0; i < binsz; ++i)
@@ -150,7 +154,8 @@ int base58_decode(const char *b58, size_t b58sz, void *bin, size_t *binszp)
--*binszp;
}
*binszp += zerocount;
OPENSSL_free(outi);
return 1;
}
@@ -162,14 +167,18 @@ int base58_encode(const void *data, size_t binsz, char *b58, size_t *b58sz)
int carry;
ssize_t i, j, high, zcount = 0;
size_t size;
//uint8_t buf[size];
uint8_t *buf = NULL;
while (zcount < binsz && !bin[zcount])
++zcount;
size = (binsz - zcount) * 138 / 100 + 1;
uint8_t buf[size];
memset(buf, 0, size);
if (!(buf = OPENSSL_zalloc(size))) {
return 0;
}
for (i = zcount, high = size - 1; i < binsz; ++i, high = j)
{
for (carry = bin[i], j = size - 1; (j > high) || carry; --j)
@@ -179,21 +188,23 @@ int base58_encode(const void *data, size_t binsz, char *b58, size_t *b58sz)
carry /= 58;
}
}
for (j = 0; j < size && !buf[j]; ++j);
if (*b58sz <= zcount + size - j)
{
*b58sz = zcount + size - j + 1;
return 0;
}
if (zcount)
memset(b58, '1', zcount);
for (i = zcount; j < size; ++i, ++j)
b58[i] = b58digits_ordered[buf[j]];
b58[i] = '\0';
*b58sz = i + 1;
end:
OPENSSL_free(buf);
return 1;
}