secdig.h
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上传日期:2007-01-12
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- /*
- * crypto.h - public data structures and prototypes for the crypto library
- *
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the Netscape security libraries.
- *
- * The Initial Developer of the Original Code is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1994-2000 Netscape Communications Corporation. All
- * Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the
- * GPL.
- *
- * $Id: secdig.h,v 1.1 2000/03/31 19:39:43 relyea%netscape.com Exp $
- */
- #ifndef _SECDIG_H_
- #define _SECDIG_H_
- #include "secdigt.h"
- #include "seccomon.h"
- #include "secasn1t.h"
- #include "secdert.h"
- extern const SEC_ASN1Template sgn_DigestInfoTemplate[];
- extern DERTemplate SGNDigestInfoTemplate[];
- SEC_BEGIN_PROTOS
- /****************************************/
- /*
- ** 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,
- 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(PRArenaPool *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 occured.
- */
- extern SECStatus SGN_CopyDigestInfo(PRArenaPool *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_ */