secplcy.h
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上传日期:2007-01-12
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- /*
- * 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.
- */
- #ifndef __secplcy_h__
- #define __secplcy_h__
- #include "prtypes.h"
- /*
- ** Cipher policy enforcement. This code isn't very pretty, but it accomplishes
- ** the purpose of obscuring policy information from potential fortifiers. :-)
- **
- ** The following routines are generic and intended for anywhere where cipher
- ** policy enforcement is to be done, e.g. SSL and PKCS7&12.
- */
- #define SEC_CIPHER_NOT_ALLOWED 0
- #define SEC_CIPHER_ALLOWED 1
- #define SEC_CIPHER_RESTRICTED 2 /* cipher is allowed in limited cases
- e.g. step-up */
- /* The length of the header string for each cipher table.
- (It's the same regardless of whether we're using md5 strings or not.) */
- #define SEC_POLICY_HEADER_LENGTH 48
- /* If we're testing policy stuff, we may want to use the plaintext version */
- #define SEC_POLICY_USE_MD5_STRINGS 1
- #define SEC_POLICY_THIS_IS_THE
- "x2ax3ax51xbfx2fx71xb7x73xaaxcax6bx57x70xcdxc8x9f"
- #define SEC_POLICY_STRING_FOR_THE
- "x97x15xe2x70xd2x8axdexa9xe7xa7x6axe2x83xe5xb1xf6"
- #define SEC_POLICY_SSL_TAIL
- "x70x16x25xc0x2axb2x4axcaxb6x67xb1x89x20xdfx87xca"
- #define SEC_POLICY_SMIME_TAIL
- "xdfxd4xe7x2axebxc4x1bxb5xd8xe5xe0x2ax16x9fxc4xb9"
- #define SEC_POLICY_PKCS12_TAIL
- "x1cxf8xa4x85x4axc6x8axfexe6xcax03x72x50x1cxe2xc8"
- #if defined(SEC_POLICY_USE_MD5_STRINGS)
- /* We're not testing.
- Use md5 checksums of the strings. */
- #define SEC_POLICY_SSL_HEADER
- SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_SSL_TAIL
- #define SEC_POLICY_SMIME_HEADER
- SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_SMIME_TAIL
- #define SEC_POLICY_PKCS12_HEADER
- SEC_POLICY_THIS_IS_THE SEC_POLICY_STRING_FOR_THE SEC_POLICY_PKCS12_TAIL
- #else
- /* We're testing.
- Use plaintext versions of the strings, for testing purposes. */
- #define SEC_POLICY_SSL_HEADER
- "This is the string for the SSL policy table. "
- #define SEC_POLICY_SMIME_HEADER
- "This is the string for the PKCS7 policy table. "
- #define SEC_POLICY_PKCS12_HEADER
- "This is the string for the PKCS12 policy table. "
- #endif
- /* Local cipher tables have to have these members at the top. */
- typedef struct _sec_cp_struct
- {
- char policy_string[SEC_POLICY_HEADER_LENGTH];
- long unused; /* placeholder for max keybits in pkcs12 struct */
- char num_ciphers;
- char begin_ciphers;
- /* cipher policy settings follow. each is a char. */
- } secCPStruct;
- struct SECCipherFindStr
- {
- /* (policy) and (ciphers) are opaque to the outside world */
- void *policy;
- void *ciphers;
- long index;
- PRBool onlyAllowed;
- };
- typedef struct SECCipherFindStr SECCipherFind;
- SEC_BEGIN_PROTOS
- SECCipherFind *sec_CipherFindInit(PRBool onlyAllowed,
- secCPStruct *policy,
- long *ciphers);
- long sec_CipherFindNext(SECCipherFind *find);
- char sec_IsCipherAllowed(long cipher, secCPStruct *policies,
- long *ciphers);
- void sec_CipherFindEnd(SECCipherFind *find);
- SEC_END_PROTOS
- #endif /* __SECPLCY_H__ */