--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nss/lib/util/hasht.h	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,63 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef _HASHT_H_
+#define _HASHT_H_
+
+#include "prtypes.h"
+
+/* Opaque objects */
+typedef struct SECHashObjectStr SECHashObject;
+typedef struct HASHContextStr HASHContext;
+
+/*
+ * The hash functions the security library supports
+ * NOTE the order must match the definition of SECHashObjects[]!
+ */
+typedef enum {
+    HASH_AlgNULL   = 0,
+    HASH_AlgMD2    = 1,
+    HASH_AlgMD5    = 2,
+    HASH_AlgSHA1   = 3,
+    HASH_AlgSHA256 = 4,
+    HASH_AlgSHA384 = 5,
+    HASH_AlgSHA512 = 6,
+    HASH_AlgSHA224 = 7,
+    HASH_AlgTOTAL
+} HASH_HashType;
+
+/*
+ * Number of bytes each hash algorithm produces
+ */
+#define MD2_LENGTH	16
+#define MD5_LENGTH	16
+#define SHA1_LENGTH	20
+#define SHA224_LENGTH 	28
+#define SHA256_LENGTH 	32
+#define SHA384_LENGTH 	48
+#define SHA512_LENGTH 	64
+#define HASH_LENGTH_MAX SHA512_LENGTH
+
+/*
+ * Structure to hold hash computation info and routines
+ */
+struct SECHashObjectStr {
+    unsigned int length;  /* hash output length (in bytes) */
+    void * (*create)(void);
+    void * (*clone)(void *);
+    void (*destroy)(void *, PRBool);
+    void (*begin)(void *);
+    void (*update)(void *, const unsigned char *, unsigned int);
+    void (*end)(void *, unsigned char *, unsigned int *, unsigned int);
+    unsigned int blocklength;  /* hash input block size (in bytes) */
+    HASH_HashType type;
+    void (*end_raw)(void *, unsigned char *, unsigned int *, unsigned int);
+};
+
+struct HASHContextStr {
+    const struct SECHashObjectStr *hashobj;
+    void *hash_context;
+};
+
+#endif /* _HASHT_H_ */