X-Git-Url: http://plrg.eecs.uci.edu/git/?p=iotcloud.git;a=blobdiff_plain;f=version2%2Fsrc%2FC%2Fpbkdf2-sha256.h;h=54a0bdf8a428fc663c0eb1c4e720313b40192081;hp=9a79572360eb3488e6aedcb9b5e1c1972628899d;hb=b2bc9b5c707bd7d932d60cd4e8c1cb580b36b5b4;hpb=464b8559d386e200df16569f899f83e969115403

diff --git a/version2/src/C/pbkdf2-sha256.h b/version2/src/C/pbkdf2-sha256.h
index 9a79572..54a0bdf 100644
--- a/version2/src/C/pbkdf2-sha256.h
+++ b/version2/src/C/pbkdf2-sha256.h
@@ -1,6 +1,26 @@
 #ifndef PBKDF2_SHA256_H
 #define PBKDF2_SHA256_H
 
+typedef struct {
+	unsigned long total[2];	/*!< number of bytes processed  */
+	unsigned long state[8];	/*!< intermediate digest state  */
+	unsigned char buffer[64];	/*!< data block being processed */
+
+	unsigned char ipad[64];	/*!< HMAC: inner padding        */
+	unsigned char opad[64];	/*!< HMAC: outer padding        */
+	int is224;		/*!< 0 => SHA-256, else SHA-224 */
+} sha2_context;
+
+void sha2_starts( sha2_context *ctx, int is224 );
+void sha2_update( sha2_context *ctx, const unsigned char *input, size_t ilen );
+void sha2_finish( sha2_context *ctx, unsigned char output[32] );
+
+void sha2_hmac_starts( sha2_context *ctx, const unsigned char *key, size_t keylen, int is224 );
+void sha2_hmac_update( sha2_context *ctx, const unsigned char *input, size_t ilen );
+void sha2_hmac_finish( sha2_context *ctx, unsigned char output[32] );
+void sha2_hmac_reset( sha2_context *ctx );
+
+
 void PKCS5_PBKDF2_HMAC(unsigned char *password, size_t plen,
 											 unsigned char *salt, size_t slen,
 											 const unsigned long iteration_count, const unsigned long key_length,