From 34bcd0e0b65aef5a30b1b87a1e934a22757f1e5a Mon Sep 17 00:00:00 2001
From: Tilghman Lesher <tilghman@meg.abyt.es>
Date: Fri, 3 Feb 2006 22:37:29 +0000
Subject: Bug 6322 - Implementation of SHA1 in Asterisk (plus dialplan function
 to use it)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@9138 65c4cc65-6c06-0410-ace0-fbb531ad65f3
---
 include/asterisk/sha1.h  | 82 ++++++++++++++++++++++++++++++++++++++++++++++++
 include/asterisk/utils.h |  3 ++
 2 files changed, 85 insertions(+)
 create mode 100644 include/asterisk/sha1.h

(limited to 'include/asterisk')

diff --git a/include/asterisk/sha1.h b/include/asterisk/sha1.h
new file mode 100644
index 000000000..016556ece
--- /dev/null
+++ b/include/asterisk/sha1.h
@@ -0,0 +1,82 @@
+/*
+ *  sha1.h
+ *
+ *  Description:
+ *      This is the header file for code which implements the Secure
+ *      Hashing Algorithm 1 as defined in FIPS PUB 180-1 published
+ *      April 17, 1995.
+ *
+ *      Many of the variable names in this code, especially the
+ *      single character names, were used because those were the names
+ *      used in the publication.
+ *
+ *      Please read the file sha1.c for more information.
+ *
+ */
+
+
+#ifndef _SHA1_H_
+#define _SHA1_H_
+
+
+
+#if defined(__OpenBSD__) || defined( __FreeBSD__)
+#include <inttypes.h>
+#else
+#include <stdint.h>
+#endif
+
+/*
+ * If you do not have the ISO standard stdint.h header file, then you
+ * must typdef the following:
+ *    name              meaning
+ *  uint32_t         unsigned 32 bit integer
+ *  uint8_t          unsigned 8 bit integer (i.e., unsigned char)
+ *  int_least16_t    integer of >= 16 bits
+ *
+ */
+
+#ifndef _SHA_enum_
+#define _SHA_enum_
+enum
+{
+    shaSuccess = 0,
+    shaNull,            /* Null pointer parameter */
+    shaInputTooLong,    /* input data too long */
+    shaStateError       /* called Input after Result */
+};
+#endif
+#define SHA1HashSize 20
+
+/*
+ *  This structure will hold context information for the SHA-1
+ *  hashing operation
+ */
+typedef struct SHA1Context
+{
+    uint32_t Intermediate_Hash[SHA1HashSize/4]; /* Message Digest  */
+
+    uint32_t Length_Low;            /* Message length in bits      */
+    uint32_t Length_High;           /* Message length in bits      */
+
+                               /* Index into message block array   */
+    int_least16_t Message_Block_Index;
+    uint8_t Message_Block[64];      /* 512-bit message blocks      */
+
+    int Computed;               /* Is the digest computed?         */
+    int Corrupted;             /* Is the message digest corrupted? */
+} SHA1Context;
+
+/*
+ *  Function Prototypes
+ */
+
+
+int SHA1Reset(  SHA1Context *);
+int SHA1Input(  SHA1Context *,
+                const uint8_t *,
+                unsigned int);
+int SHA1Result( SHA1Context *,
+                uint8_t Message_Digest[SHA1HashSize]);
+
+#endif
diff --git a/include/asterisk/utils.h b/include/asterisk/utils.h
index f16817b86..416f362f6 100644
--- a/include/asterisk/utils.h
+++ b/include/asterisk/utils.h
@@ -145,6 +145,9 @@ struct hostent *ast_gethostbyname(const char *host, struct ast_hostent *hp);
 /* ast_md5_hash 
 	\brief Produces MD5 hash based on input string */
 void ast_md5_hash(char *output, char *input);
+/* ast_sha1_hash
+	\brief Produces SHA1 hash based on input string */
+void ast_sha1_hash(char *output, char *input);
 
 int ast_base64encode(char *dst, const unsigned char *src, int srclen, int max);
 int ast_base64decode(unsigned char *dst, const char *src, int max);
-- 
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