Changeset 1265 for pjproject/trunk/pjlib-util/include/pjlib-util/hmac_md5.h

Timestamp:

May 11, 2007 10:37:14 AM (17 years ago)

Author:

bennylp

Message:

Fixed missing padding when calculating MESSAGE-INTEGRITY in STUN

File:

• pjproject/trunk/pjlib-util/include/pjlib-util/hmac_md5.h (modified) (3 diffs)

pjproject/trunk/pjlib-util/include/pjlib-util/hmac_md5.h

@@ -30 +30 @@
 
 #include <pj/types.h>
+#include <pjlib-util/md5.h>
 
 PJ_BEGIN_DECL
@@ -41 +42 @@
  * for Message Authentication, as described in RFC 2104
  */
+
+/**
+ * The HMAC-MD5 context used in the incremental HMAC calculation.
+ */
+typedef struct pj_hmac_md5_context
+{
+    pj_md5_context  context;    /**< MD5 context            */
+    pj_uint8_t      k_opad[64]; /**< opad xor-ed with key   */
+} pj_hmac_md5_context;
 
 
@@ -58 +68 @@
 
 /**
+ * Initiate HMAC-MD5 context for incremental hashing.
+ *
+ * @param hctx          HMAC-MD5 context.
+ * @param key           Pointer to the authentication key.
+ * @param key_len       Length of the authentication key.
+ */
+PJ_DECL(void) pj_hmac_md5_init(pj_hmac_md5_context *hctx, 
+                               const pj_uint8_t *key, unsigned key_len);
+
+/**
+ * Append string to the message.
+ *
+ * @param hctx          HMAC-MD5 context.
+ * @param input         Pointer to the input stream.
+ * @param input_len     Length of input stream in bytes.
+ */
+PJ_DECL(void) pj_hmac_md5_update(pj_hmac_md5_context *hctx,
+                                 const pj_uint8_t *input, 
+                                 unsigned input_len);
+
+/**
+ * Finish the message and return the digest. 
+ *
+ * @param hctx          HMAC-MD5 context.
+ * @param digest        Buffer to be filled with HMAC MD5 digest.
+ */
+PJ_DECL(void) pj_hmac_md5_final(pj_hmac_md5_context *hctx,
+                                pj_uint8_t digest[16]);
+
+/**
  * @}
  */