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Minor updates to blowfish encryption.

This commit is contained in:
Bram Moolenaar
2010-05-16 23:02:33 +02:00
parent 40e6a71c67
commit 823a165119
4 changed files with 30 additions and 38 deletions

View File

@@ -28,7 +28,7 @@ static void sha256_starts __ARGS((context_sha256_T *ctx));
static void sha256_process __ARGS((context_sha256_T *ctx, char_u data[64]));
static void sha256_update __ARGS((context_sha256_T *ctx, char_u *input, uint32_t length));
static void sha256_finish __ARGS((context_sha256_T *ctx, char_u digest[32]));
static char *sha256_bytes __ARGS((char *buf, int buflen));
static char_u *sha256_bytes __ARGS((char_u *buf, int buflen));
static unsigned int get_some_time __ARGS((void));
@@ -277,48 +277,42 @@ sha256_finish(ctx, digest)
PUT_UINT32(ctx->state[7], digest, 28);
}
static char *
/*
* Returns hex digest of "buf[buflen]" in a static array.
*/
static char_u *
sha256_bytes(buf, buflen)
char *buf;
int buflen;
char_u *buf;
int buflen;
{
char_u sha256sum[32];
static char hexit[65];
static char_u hexit[65];
int j;
context_sha256_T ctx;
sha256_self_test();
sha256_starts(&ctx);
sha256_update(&ctx, (char_u *)buf, buflen);
sha256_update(&ctx, buf, buflen);
sha256_finish(&ctx, sha256sum);
for (j = 0; j < 32; j++)
sprintf(hexit + j * 2, "%02x", sha256sum[j]);
sprintf((char *)hexit + j * 2, "%02x", sha256sum[j]);
hexit[sizeof(hexit) - 1] = '\0';
return hexit;
}
/*
* Returns sha256(buf) as 64 hex chars.
* Returns sha256(buf) as 64 hex chars in static array.
*/
char *
char_u *
sha256_key(buf)
char *buf;
char_u *buf;
{
static char *hexit = 0;
int buflen;
/* No passwd means don't encrypt */
if (buf == NULL || *buf == NUL)
return "";
return (char_u *)"";
/* if password is "0", reuse previous hash, for user convienience. */
if (!strcmp(buf, "0") && hexit)
return hexit;
buflen = strlen(buf);
hexit = sha256_bytes(buf, buflen);
return hexit;
return sha256_bytes(buf, STRLEN(buf));
}
/*
@@ -353,7 +347,7 @@ sha256_self_test()
char_u buf[1000];
char_u sha256sum[32];
static int failures = 0;
char *hexit;
char_u *hexit;
static int sha256_self_tested = 0;
if (sha256_self_tested > 0)
@@ -364,9 +358,9 @@ sha256_self_test()
{
if (i < 2)
{
hexit = sha256_bytes(sha_self_test_msg[i],
strlen(sha_self_test_msg[i]));
strcpy(output, hexit);
hexit = sha256_bytes((char_u *)sha_self_test_msg[i],
STRLEN(sha_self_test_msg[i]));
STRCPY(output, hexit);
}
else
{