--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/nss/lib/util/secdig.h	Mon Jul 28 10:47:06 2014 +0200
@@ -0,0 +1,103 @@
+/*
+ * secdig.h - public prototypes for digest-info functions
+ *
+ * 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 _SECDIG_H_
+#define _SECDIG_H_
+
+#include "utilrename.h"
+#include "secdigt.h"
+
+#include "seccomon.h"
+#include "secasn1t.h" 
+#include "secdert.h"
+
+SEC_BEGIN_PROTOS
+
+
+extern const SEC_ASN1Template sgn_DigestInfoTemplate[];
+
+SEC_ASN1_CHOOSER_DECLARE(sgn_DigestInfoTemplate)
+
+/****************************************/
+/*
+** Digest-info functions
+*/
+
+/*
+** Create a new digest-info object
+** 	"algorithm" one of SEC_OID_MD2, SEC_OID_MD5, or SEC_OID_SHA1
+** 	"sig" the raw signature data (from MD2 or MD5)
+** 	"sigLen" the length of the signature data
+**
+** NOTE: this is a low level routine used to prepare some data for PKCS#1
+** digital signature formatting.
+**
+** XXX It might be nice to combine the create and encode functions.
+** I think that is all anybody ever wants to do anyway.
+*/
+extern SGNDigestInfo *SGN_CreateDigestInfo(SECOidTag algorithm,
+					   const unsigned char *sig,
+					   unsigned int sigLen);
+
+/*
+** Destroy a digest-info object
+*/
+extern void SGN_DestroyDigestInfo(SGNDigestInfo *info);
+
+/*
+** Encode a digest-info object
+**	"poolp" is where to allocate the result from; it can be NULL in
+**		which case generic heap allocation (XP_ALLOC) will be used
+**	"dest" is where to store the result; it can be NULL, in which case
+**		it will be allocated (from poolp or heap, as explained above)
+**	"diginfo" is the object to be encoded
+** The return value is NULL if any error occurred, otherwise it is the
+** resulting SECItem (either allocated or the same as the "dest" parameter).
+**
+** XXX It might be nice to combine the create and encode functions.
+** I think that is all anybody ever wants to do anyway.
+*/
+extern SECItem *SGN_EncodeDigestInfo(PLArenaPool *poolp, SECItem *dest,
+				     SGNDigestInfo *diginfo);
+
+/*
+** Decode a DER encoded digest info objct.
+**  didata is thr source of the encoded digest.  
+** The return value is NULL if an error occurs.  Otherwise, a
+** digest info object which is allocated within it's own
+** pool is returned.  The digest info should be deleted
+** by later calling SGN_DestroyDigestInfo.
+*/
+extern SGNDigestInfo *SGN_DecodeDigestInfo(SECItem *didata);
+
+
+/*
+** Copy digest info.
+**  poolp is the arena to which the digest will be copied.
+**  a is the destination digest, it must be non-NULL.
+**  b is the source digest
+** This function is for copying digests.  It allows digests
+** to be copied into a specified pool.  If the digest is in
+** the same pool as other data, you do not want to delete
+** the digest by calling SGN_DestroyDigestInfo.  
+** A return value of SECFailure indicates an error.  A return
+** of SECSuccess indicates no error occurred.
+*/
+extern SECStatus  SGN_CopyDigestInfo(PLArenaPool *poolp,
+					SGNDigestInfo *a, 
+					SGNDigestInfo *b);
+
+/*
+** Compare two digest-info objects, returning the difference between
+** them.
+*/
+extern SECComparison SGN_CompareDigestInfo(SGNDigestInfo *a, SGNDigestInfo *b);
+
+
+SEC_END_PROTOS
+
+#endif /* _SECDIG_H_ */