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Added comments to hmac and rc4 code and extra diagnotics to cert # out of

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bounds.


git-svn-id: svn://svn.code.sf.net/p/axtls/code/trunk@192 9a5d90b5-6617-0410-8a86-bb477d3ed2e3
This commit is contained in:
cameronrich
2011-01-08 03:44:47 +00:00
parent ab9ddd16f5
commit 9e1cb29c54
4 changed files with 12 additions and 6 deletions
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4
crypto/hmac.c
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@ -30,6 +30,8 @@
/**
* HMAC implementation - This code was originally taken from RFC2104
* See http://www.ietf.org/rfc/rfc2104.txt and
* http://www.faqs.org/rfcs/rfc2202.html
*/
#include <string.h>
@ -38,6 +40,7 @@
/**
* Perform HMAC-MD5
* NOTE: does not handle keys larger than the block size.
*/
void hmac_md5(const uint8_t *msg, int length, const uint8_t *key,
int key_len, uint8_t *digest)
@ -70,6 +73,7 @@ void hmac_md5(const uint8_t *msg, int length, const uint8_t *key,
/**
* Perform HMAC-SHA1
* NOTE: does not handle keys larger than the block size.
*/
void hmac_sha1(const uint8_t *msg, int length, const uint8_t *key,
int key_len, uint8_t *digest)

2
crypto/rc4.c
View File

@ -67,12 +67,12 @@ void RC4_setup(RC4_CTX *ctx, const uint8_t *key, int length)
/**
* Perform the encrypt/decrypt operation (can use it for either since
* this is a stream cipher).
* NOTE: *msg and *out must be the same pointer (performance tweak)
*/
void RC4_crypt(RC4_CTX *ctx, const uint8_t *msg, uint8_t *out, int length)
{
int i;
uint8_t *m, x, y, a, b;
out = (uint8_t *)msg;
x = ctx->x;
y = ctx->y;