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347 lines
13 KiB
C
347 lines
13 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1994-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* Support routines for CMS implementation, none of which are exported.
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*
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* Do not export this file! If something in here is really needed outside
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* of smime code, first try to add a CMS interface which will do it for
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* you. If that has a problem, then just move out what you need, changing
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* its name as appropriate!
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*
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* $Id: cmslocal.h,v 1.5 2005/06/27 22:21:18 julien.pierre.bugs%sun.com Exp $
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*/
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#ifndef _CMSLOCAL_H_
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#define _CMSLOCAL_H_
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#include "cms.h"
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#include "cmsreclist.h"
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#include "secasn1t.h"
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extern const SEC_ASN1Template NSSCMSContentInfoTemplate[];
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/************************************************************************/
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SEC_BEGIN_PROTOS
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/***********************************************************************
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* cmscipher.c - en/decryption routines
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***********************************************************************/
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/*
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* NSS_CMSCipherContext_StartDecrypt - create a cipher context to do decryption
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* based on the given bulk * encryption key and algorithm identifier (which may include an iv).
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*/
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extern NSSCMSCipherContext *
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NSS_CMSCipherContext_StartDecrypt(PK11SymKey *key, SECAlgorithmID *algid);
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/*
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* NSS_CMSCipherContext_StartEncrypt - create a cipher object to do encryption,
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* based on the given bulk encryption key and algorithm tag. Fill in the algorithm
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* identifier (which may include an iv) appropriately.
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*/
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extern NSSCMSCipherContext *
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NSS_CMSCipherContext_StartEncrypt(PRArenaPool *poolp, PK11SymKey *key, SECAlgorithmID *algid);
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extern void
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NSS_CMSCipherContext_Destroy(NSSCMSCipherContext *cc);
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/*
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* NSS_CMSCipherContext_DecryptLength - find the output length of the next call to decrypt.
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*
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* cc - the cipher context
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* input_len - number of bytes used as input
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* final - true if this is the final chunk of data
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*
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* Result can be used to perform memory allocations. Note that the amount
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* is exactly accurate only when not doing a block cipher or when final
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* is false, otherwise it is an upper bound on the amount because until
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* we see the data we do not know how many padding bytes there are
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* (always between 1 and bsize).
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*/
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extern unsigned int
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NSS_CMSCipherContext_DecryptLength(NSSCMSCipherContext *cc, unsigned int input_len, PRBool final);
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/*
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* NSS_CMSCipherContext_EncryptLength - find the output length of the next call to encrypt.
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*
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* cc - the cipher context
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* input_len - number of bytes used as input
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* final - true if this is the final chunk of data
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*
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* Result can be used to perform memory allocations.
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*/
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extern unsigned int
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NSS_CMSCipherContext_EncryptLength(NSSCMSCipherContext *cc, unsigned int input_len, PRBool final);
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/*
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* NSS_CMSCipherContext_Decrypt - do the decryption
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*
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* cc - the cipher context
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* output - buffer for decrypted result bytes
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* output_len_p - number of bytes in output
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* max_output_len - upper bound on bytes to put into output
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* input - pointer to input bytes
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* input_len - number of input bytes
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* final - true if this is the final chunk of data
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*
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* Decrypts a given length of input buffer (starting at "input" and
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* containing "input_len" bytes), placing the decrypted bytes in
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* "output" and storing the output length in "*output_len_p".
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* "cc" is the return value from NSS_CMSCipher_StartDecrypt.
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* When "final" is true, this is the last of the data to be decrypted.
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*/
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extern SECStatus
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NSS_CMSCipherContext_Decrypt(NSSCMSCipherContext *cc, unsigned char *output,
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unsigned int *output_len_p, unsigned int max_output_len,
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const unsigned char *input, unsigned int input_len,
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PRBool final);
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/*
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* NSS_CMSCipherContext_Encrypt - do the encryption
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*
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* cc - the cipher context
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* output - buffer for decrypted result bytes
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* output_len_p - number of bytes in output
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* max_output_len - upper bound on bytes to put into output
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* input - pointer to input bytes
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* input_len - number of input bytes
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* final - true if this is the final chunk of data
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*
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* Encrypts a given length of input buffer (starting at "input" and
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* containing "input_len" bytes), placing the encrypted bytes in
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* "output" and storing the output length in "*output_len_p".
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* "cc" is the return value from NSS_CMSCipher_StartEncrypt.
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* When "final" is true, this is the last of the data to be encrypted.
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*/
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extern SECStatus
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NSS_CMSCipherContext_Encrypt(NSSCMSCipherContext *cc, unsigned char *output,
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unsigned int *output_len_p, unsigned int max_output_len,
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const unsigned char *input, unsigned int input_len,
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PRBool final);
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/************************************************************************
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* cmspubkey.c - public key operations
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************************************************************************/
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/*
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* NSS_CMSUtil_EncryptSymKey_RSA - wrap a symmetric key with RSA
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*
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* this function takes a symmetric key and encrypts it using an RSA public key
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* according to PKCS#1 and RFC2633 (S/MIME)
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*/
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extern SECStatus
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NSS_CMSUtil_EncryptSymKey_RSA(PLArenaPool *poolp, CERTCertificate *cert,
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PK11SymKey *key,
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SECItem *encKey);
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extern SECStatus
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NSS_CMSUtil_EncryptSymKey_RSAPubKey(PLArenaPool *poolp,
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SECKEYPublicKey *publickey,
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PK11SymKey *bulkkey, SECItem *encKey);
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/*
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* NSS_CMSUtil_DecryptSymKey_RSA - unwrap a RSA-wrapped symmetric key
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*
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* this function takes an RSA-wrapped symmetric key and unwraps it, returning a symmetric
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* key handle. Please note that the actual unwrapped key data may not be allowed to leave
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* a hardware token...
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*/
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extern PK11SymKey *
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NSS_CMSUtil_DecryptSymKey_RSA(SECKEYPrivateKey *privkey, SECItem *encKey, SECOidTag bulkalgtag);
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extern SECStatus
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NSS_CMSUtil_EncryptSymKey_MISSI(PLArenaPool *poolp, CERTCertificate *cert, PK11SymKey *key,
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SECOidTag symalgtag, SECItem *encKey, SECItem **pparams, void *pwfn_arg);
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extern PK11SymKey *
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NSS_CMSUtil_DecryptSymKey_MISSI(SECKEYPrivateKey *privkey, SECItem *encKey,
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SECAlgorithmID *keyEncAlg, SECOidTag bulkalgtag, void *pwfn_arg);
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extern SECStatus
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NSS_CMSUtil_EncryptSymKey_ESDH(PLArenaPool *poolp, CERTCertificate *cert, PK11SymKey *key,
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SECItem *encKey, SECItem **ukm, SECAlgorithmID *keyEncAlg,
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SECItem *originatorPubKey);
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extern PK11SymKey *
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NSS_CMSUtil_DecryptSymKey_ESDH(SECKEYPrivateKey *privkey, SECItem *encKey,
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SECAlgorithmID *keyEncAlg, SECOidTag bulkalgtag, void *pwfn_arg);
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/************************************************************************
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* cmsreclist.c - recipient list stuff
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************************************************************************/
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extern NSSCMSRecipient **nss_cms_recipient_list_create(NSSCMSRecipientInfo **recipientinfos);
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extern void nss_cms_recipient_list_destroy(NSSCMSRecipient **recipient_list);
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extern NSSCMSRecipientEncryptedKey *NSS_CMSRecipientEncryptedKey_Create(PLArenaPool *poolp);
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/************************************************************************
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* cmsarray.c - misc array functions
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************************************************************************/
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/*
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* NSS_CMSArray_Alloc - allocate an array in an arena
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*/
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extern void **
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NSS_CMSArray_Alloc(PRArenaPool *poolp, int n);
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/*
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* NSS_CMSArray_Add - add an element to the end of an array
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*/
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extern SECStatus
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NSS_CMSArray_Add(PRArenaPool *poolp, void ***array, void *obj);
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/*
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* NSS_CMSArray_IsEmpty - check if array is empty
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*/
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extern PRBool
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NSS_CMSArray_IsEmpty(void **array);
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/*
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* NSS_CMSArray_Count - count number of elements in array
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*/
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extern int
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NSS_CMSArray_Count(void **array);
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/*
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* NSS_CMSArray_Sort - sort an array ascending, in place
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*
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* If "secondary" is not NULL, the same reordering gets applied to it.
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* If "tertiary" is not NULL, the same reordering gets applied to it.
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* "compare" is a function that returns
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* < 0 when the first element is less than the second
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* = 0 when the first element is equal to the second
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* > 0 when the first element is greater than the second
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*/
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extern void
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NSS_CMSArray_Sort(void **primary, int (*compare)(void *,void *), void **secondary, void **tertiary);
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/************************************************************************
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* cmsattr.c - misc attribute functions
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************************************************************************/
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/*
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* NSS_CMSAttribute_Create - create an attribute
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*
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* if value is NULL, the attribute won't have a value. It can be added later
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* with NSS_CMSAttribute_AddValue.
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*/
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extern NSSCMSAttribute *
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NSS_CMSAttribute_Create(PRArenaPool *poolp, SECOidTag oidtag, SECItem *value, PRBool encoded);
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/*
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* NSS_CMSAttribute_AddValue - add another value to an attribute
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*/
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extern SECStatus
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NSS_CMSAttribute_AddValue(PLArenaPool *poolp, NSSCMSAttribute *attr, SECItem *value);
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/*
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* NSS_CMSAttribute_GetType - return the OID tag
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*/
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extern SECOidTag
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NSS_CMSAttribute_GetType(NSSCMSAttribute *attr);
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/*
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* NSS_CMSAttribute_GetValue - return the first attribute value
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*
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* We do some sanity checking first:
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* - Multiple values are *not* expected.
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* - Empty values are *not* expected.
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*/
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extern SECItem *
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NSS_CMSAttribute_GetValue(NSSCMSAttribute *attr);
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/*
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* NSS_CMSAttribute_CompareValue - compare the attribute's first value against data
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*/
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extern PRBool
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NSS_CMSAttribute_CompareValue(NSSCMSAttribute *attr, SECItem *av);
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/*
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* NSS_CMSAttributeArray_Encode - encode an Attribute array as SET OF Attributes
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*
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* If you are wondering why this routine does not reorder the attributes
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* first, and might be tempted to make it do so, see the comment by the
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* call to ReorderAttributes in cmsencode.c. (Or, see who else calls this
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* and think long and hard about the implications of making it always
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* do the reordering.)
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*/
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extern SECItem *
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NSS_CMSAttributeArray_Encode(PRArenaPool *poolp, NSSCMSAttribute ***attrs, SECItem *dest);
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/*
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* NSS_CMSAttributeArray_Reorder - sort attribute array by attribute's DER encoding
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*
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* make sure that the order of the attributes guarantees valid DER (which must be
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* in lexigraphically ascending order for a SET OF); if reordering is necessary it
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* will be done in place (in attrs).
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*/
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extern SECStatus
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NSS_CMSAttributeArray_Reorder(NSSCMSAttribute **attrs);
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/*
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* NSS_CMSAttributeArray_FindAttrByOidTag - look through a set of attributes and
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* find one that matches the specified object ID.
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*
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* If "only" is true, then make sure that there is not more than one attribute
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* of the same type. Otherwise, just return the first one found. (XXX Does
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* anybody really want that first-found behavior? It was like that when I found it...)
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*/
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extern NSSCMSAttribute *
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NSS_CMSAttributeArray_FindAttrByOidTag(NSSCMSAttribute **attrs, SECOidTag oidtag, PRBool only);
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/*
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* NSS_CMSAttributeArray_AddAttr - add an attribute to an
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* array of attributes.
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*/
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extern SECStatus
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NSS_CMSAttributeArray_AddAttr(PLArenaPool *poolp, NSSCMSAttribute ***attrs, NSSCMSAttribute *attr);
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/*
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* NSS_CMSAttributeArray_SetAttr - set an attribute's value in a set of attributes
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*/
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extern SECStatus
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NSS_CMSAttributeArray_SetAttr(PLArenaPool *poolp, NSSCMSAttribute ***attrs, SECOidTag type, SECItem *value, PRBool encoded);
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/*
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* NSS_CMSSignedData_AddTempCertificate - add temporary certificate references.
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* They may be needed for signature verification on the data, for example.
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*/
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extern SECStatus
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NSS_CMSSignedData_AddTempCertificate(NSSCMSSignedData *sigd, CERTCertificate *cert);
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/************************************************************************/
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SEC_END_PROTOS
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#endif /* _CMSLOCAL_H_ */
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