emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

libbb/pw_encrypt_sha: forgot to move &ctx to 1st param here in sha hash rework

Browse Source 
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Denys Vlasenko 2010-12-01 13:57:25 +01:00
parent 3f2477e8a8
commit 5dcc6606cb
1 changed files with 25 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
libbb/pw_encrypt_sha.c
View File

@ -3,7 +3,7 @@
*/
/* Prefix for optional rounds specification. */
static const char str_rounds[] = "rounds=%u$";
static const char str_rounds[] ALIGN1 = "rounds=%u$";
/* Maximum salt string length. */
#define SALT_LEN_MAX 16
@ -19,8 +19,8 @@ NOINLINE
sha_crypt(/*const*/ char *key_data, /*const*/ char *salt_data)
{
void (*sha_begin)(void *ctx) FAST_FUNC;
void (*sha_hash)(const void *buffer, size_t len, void *ctx) FAST_FUNC;
void (*sha_end)(void *resbuf, void *ctx) FAST_FUNC;
void (*sha_hash)(void *ctx, const void *buffer, size_t len) FAST_FUNC;
void (*sha_end)(void *ctx, void *resbuf) FAST_FUNC;
int _32or64;
char *result, *resptr;
@ -103,40 +103,40 @@ sha_crypt(/*const*/ char *key_data, /*const*/ char *salt_data)
/* Add KEY, SALT. */
sha_begin(&ctx);
sha_hash(key_data, key_len, &ctx);
sha_hash(salt_data, salt_len, &ctx);
sha_hash(&ctx, key_data, key_len);
sha_hash(&ctx, salt_data, salt_len);
/* Compute alternate SHA sum with input KEY, SALT, and KEY.
The final result will be added to the first context. */
sha_begin(&alt_ctx);
sha_hash(key_data, key_len, &alt_ctx);
sha_hash(salt_data, salt_len, &alt_ctx);
sha_hash(key_data, key_len, &alt_ctx);
sha_end(alt_result, &alt_ctx);
sha_hash(&alt_ctx, key_data, key_len);
sha_hash(&alt_ctx, salt_data, salt_len);
sha_hash(&alt_ctx, key_data, key_len);
sha_end(&alt_ctx, alt_result);
/* Add result of this to the other context. */
/* Add for any character in the key one byte of the alternate sum. */
for (cnt = key_len; cnt > _32or64; cnt -= _32or64)
sha_hash(alt_result, _32or64, &ctx);
sha_hash(alt_result, cnt, &ctx);
sha_hash(&ctx, alt_result, _32or64);
sha_hash(&ctx, alt_result, cnt);
/* Take the binary representation of the length of the key and for every
1 add the alternate sum, for every 0 the key. */
for (cnt = key_len; cnt != 0; cnt >>= 1)
if ((cnt & 1) != 0)
sha_hash(alt_result, _32or64, &ctx);
sha_hash(&ctx, alt_result, _32or64);
else
sha_hash(key_data, key_len, &ctx);
sha_hash(&ctx, key_data, key_len);
/* Create intermediate result. */
sha_end(alt_result, &ctx);
sha_end(&ctx, alt_result);
/* Start computation of P byte sequence. */
/* For every character in the password add the entire password. */
sha_begin(&alt_ctx);
for (cnt = 0; cnt < key_len; ++cnt)
sha_hash(key_data, key_len, &alt_ctx);
sha_end(temp_result, &alt_ctx);
sha_hash(&alt_ctx, key_data, key_len);
sha_end(&alt_ctx, temp_result);
/* NB: past this point, raw key_data is not used anymore */
@ -153,8 +153,8 @@ sha_crypt(/*const*/ char *key_data, /*const*/ char *salt_data)
/* For every character in the password add the entire password. */
sha_begin(&alt_ctx);
for (cnt = 0; cnt < 16 + alt_result[0]; ++cnt)
sha_hash(salt_data, salt_len, &alt_ctx);
sha_end(temp_result, &alt_ctx);
sha_hash(&alt_ctx, salt_data, salt_len);
sha_end(&alt_ctx, temp_result);
/* NB: past this point, raw salt_data is not used anymore */
@ -174,22 +174,22 @@ sha_crypt(/*const*/ char *key_data, /*const*/ char *salt_data)
/* Add key or last result. */
if ((cnt & 1) != 0)
sha_hash(p_bytes, key_len, &ctx);
sha_hash(&ctx, p_bytes, key_len);
else
sha_hash(alt_result, _32or64, &ctx);
sha_hash(&ctx, alt_result, _32or64);
/* Add salt for numbers not divisible by 3. */
if (cnt % 3 != 0)
sha_hash(s_bytes, salt_len, &ctx);
sha_hash(&ctx, s_bytes, salt_len);
/* Add key for numbers not divisible by 7. */
if (cnt % 7 != 0)
sha_hash(p_bytes, key_len, &ctx);
sha_hash(&ctx, p_bytes, key_len);
/* Add key or last result. */
if ((cnt & 1) != 0)
sha_hash(alt_result, _32or64, &ctx);
sha_hash(&ctx, alt_result, _32or64);
else
sha_hash(p_bytes, key_len, &ctx);
sha_hash(&ctx, p_bytes, key_len);
sha_end(alt_result, &ctx);
sha_end(&ctx, alt_result);
}
/* Append encrypted password to result buffer */