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

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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 * 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> #include <string.h>
@ -38,6 +40,7 @@
/** /**
* Perform HMAC-MD5 * 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, void hmac_md5(const uint8_t *msg, int length, const uint8_t *key,
int key_len, uint8_t *digest) 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 * 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, void hmac_sha1(const uint8_t *msg, int length, const uint8_t *key,
int key_len, uint8_t *digest) int key_len, uint8_t *digest)

2
crypto/rc4.c
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@ -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 * Perform the encrypt/decrypt operation (can use it for either since
* this is a stream cipher). * 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) void RC4_crypt(RC4_CTX *ctx, const uint8_t *msg, uint8_t *out, int length)
{ {
int i; int i;
uint8_t *m, x, y, a, b; uint8_t *m, x, y, a, b;
out = (uint8_t *)msg;
x = ctx->x; x = ctx->x;
y = ctx->y; y = ctx->y;

10
ssl/tls1.c
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@ -347,8 +347,9 @@ int add_cert(SSL_CTX *ssl_ctx, const uint8_t *buf, int len)
if (i == CONFIG_SSL_MAX_CERTS) /* too many certs */ if (i == CONFIG_SSL_MAX_CERTS) /* too many certs */
{ {
#ifdef CONFIG_SSL_FULL_MODE #ifdef CONFIG_SSL_FULL_MODE
printf("Error: maximum number of certs added - change of " printf("Error: maximum number of certs added (%d) - change of "
"compile-time configuration required\n"); "compile-time configuration required\n",
CONFIG_SSL_MAX_CERTS);
#endif #endif
goto error; goto error;
} }
@ -404,8 +405,9 @@ int add_cert_auth(SSL_CTX *ssl_ctx, const uint8_t *buf, int len)
if (i >= CONFIG_X509_MAX_CA_CERTS) if (i >= CONFIG_X509_MAX_CA_CERTS)
{ {
#ifdef CONFIG_SSL_FULL_MODE #ifdef CONFIG_SSL_FULL_MODE
printf("Error: maximum number of CA certs added - change of " printf("Error: maximum number of CA certs added (%d) - change of "
"compile-time configuration required\n"); "compile-time configuration required\n",
CONFIG_X509_MAX_CA_CERTS);
#endif #endif
break; break;
} }

2
www/index.html
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