Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity

Patch #463421: speed up md5 module with real memcpy/set.

This commit is contained in:
Martin v. Löwis 2001-09-24 17:14:40 +00:00
parent bb77e6801e
commit 287620f50d
1 changed files with 4 additions and 28 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
Modules/md5c.c
View File

@ -48,8 +48,6 @@ documentation and/or software.
static void MD5Transform(UINT4[4], unsigned char[64]);
static void Encode(unsigned char *, UINT4 *, unsigned int);
static void Decode(UINT4 *, unsigned char *, unsigned int);
static void MD5_memcpy(POINTER, POINTER, unsigned int);
static void MD5_memset(POINTER, int, unsigned int);
static unsigned char PADDING[64] = {
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@ -126,7 +124,7 @@ MD5Update(MD5_CTX *context, unsigned char *input, unsigned int inputLen)
/* Transform as many times as possible. */
if (inputLen >= partLen) {
MD5_memcpy((POINTER)&context->buffer[index], (POINTER)input, partLen);
memcpy((POINTER)&context->buffer[index], (POINTER)input, partLen);
MD5Transform(context->state, context->buffer);
for (i = partLen; i + 63 < inputLen; i += 64)
@ -138,7 +136,7 @@ MD5Update(MD5_CTX *context, unsigned char *input, unsigned int inputLen)
i = 0;
/* Buffer remaining input */
MD5_memcpy((POINTER)&context->buffer[index],
memcpy((POINTER)&context->buffer[index],
(POINTER)&input[i], inputLen-i);
}
@ -166,7 +164,7 @@ MD5Final(unsigned char digest[16], MD5_CTX *context)
Encode(digest, context->state, 16);
/* Zeroize sensitive information. */
MD5_memset((POINTER)context, 0, sizeof (*context));
memset((POINTER)context, 0, sizeof (*context));
}
@ -256,7 +254,7 @@ MD5Transform(UINT4 state[4], unsigned char block[64])
state[3] += d;
/* Zeroize sensitive information. */
MD5_memset((POINTER)x, 0, sizeof (x));
memset((POINTER)x, 0, sizeof (x));
}
@ -290,25 +288,3 @@ Decode(UINT4 *output, unsigned char *input, unsigned int len)
(((UINT4)input[j+2]) << 16) | (((UINT4)input[j+3]) << 24);
}
}
/* Note: Replace "for loop" with standard memcpy if possible. */
static void
MD5_memcpy(POINTER output, POINTER input, unsigned int len)
{
unsigned int i;
for (i = 0; i < len; i++)
output[i] = input[i];
}
/* Note: Replace "for loop" with standard memset if possible. */
static void
MD5_memset(POINTER output, int value, unsigned int len)
{
unsigned int i;
for (i = 0; i < len; i++)
((char *)output)[i] = (char)value;
}