preenc.h
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上传日期:2007-01-12
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- /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil -*- */
- /*
- * Functions and types used by https servers to send (download) pre-encrypted
- * files over SSL connections that use Fortezza ciphersuites.
- *
- * 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: preenc.h,v 1.1 2000/03/31 19:32:57 relyea%netscape.com Exp $
- */
- #include "seccomon.h"
- #include "prio.h"
- typedef struct PEHeaderStr PEHeader;
- #define PE_MIME_TYPE "application/pre-encrypted"
- /*
- * unencrypted header. The 'top' half of this header is generic. The union
- * is type specific, and may include bulk cipher type information
- * (Fortezza supports only Fortezza Bulk encryption). Only fortezza
- * pre-encrypted is defined.
- */
- typedef struct PEFortezzaHeaderStr PEFortezzaHeader;
- typedef struct PEFortezzaGeneratedHeaderStr PEFortezzaGeneratedHeader;
- typedef struct PEFixedKeyHeaderStr PEFixedKeyHeader;
- typedef struct PERSAKeyHeaderStr PERSAKeyHeader;
- struct PEFortezzaHeaderStr {
- unsigned char key[12]; /* Ks wrapped MEK */
- unsigned char iv[24]; /* iv for this MEK */
- unsigned char hash[20]; /* SHA hash of file */
- unsigned char serial[8]; /* serial number of the card that owns
- * Ks */
- };
- struct PEFortezzaGeneratedHeaderStr {
- unsigned char key[12]; /* TEK wrapped MEK */
- unsigned char iv[24]; /* iv for this MEK */
- unsigned char hash[20]; /* SHA hash of file */
- unsigned char Ra[128]; /* RA to generate TEK */
- unsigned char Y[128]; /* Y to generate TEK */
- };
- struct PEFixedKeyHeaderStr {
- unsigned char pkcs11Mech[4]; /* Symetric key operation */
- unsigned char labelLen[2]; /* length of the token label */
- unsigned char keyIDLen[2]; /* length of the token Key ID */
- unsigned char ivLen[2]; /* length of IV */
- unsigned char keyLen[2]; /* length of key (DES3_ECB encrypted) */
- unsigned char data[1]; /* start of data */
- };
- struct PERSAKeyHeaderStr {
- unsigned char pkcs11Mech[4]; /* Symetric key operation */
- unsigned char issuerLen[2]; /* length of cert issuer */
- unsigned char serialLen[2]; /* length of the cert serial */
- unsigned char ivLen[2]; /* length of IV */
- unsigned char keyLen[2]; /* length of key (RSA encrypted) */
- unsigned char data[1]; /* start of data */
- };
- /* macros to get at the variable length data fields */
- #define PEFIXED_Label(header) (header->data)
- #define PEFIXED_KeyID(header) (&header->data[GetInt2(header->labelLen)])
- #define PEFIXED_IV(header) (&header->data[GetInt2(header->labelLen)
- +GetInt2(header->keyIDLen)])
- #define PEFIXED_Key(header) (&header->data[GetInt2(header->labelLen)
- +GetInt2(header->keyIDLen)+GetInt2(header->keyLen)])
- #define PERSA_Issuer(header) (header->data)
- #define PERSA_Serial(header) (&header->data[GetInt2(header->issuerLen)])
- #define PERSA_IV(header) (&header->data[GetInt2(header->issuerLen)
- +GetInt2(header->serialLen)])
- #define PERSA_Key(header) (&header->data[GetInt2(header->issuerLen)
- +GetInt2(header->serialLen)+GetInt2(header->keyLen)])
- struct PEHeaderStr {
- unsigned char magic [2]; /* always 0xC0DE */
- unsigned char len [2]; /* length of PEHeader */
- unsigned char type [2]; /* FORTEZZA, DIFFIE-HELMAN, RSA */
- unsigned char version[2]; /* version number: 1.0 */
- union {
- PEFortezzaHeader fortezza;
- PEFortezzaGeneratedHeader g_fortezza;
- PEFixedKeyHeader fixed;
- PERSAKeyHeader rsa;
- } u;
- };
- #define PE_CRYPT_INTRO_LEN 8
- #define PE_INTRO_LEN 4
- #define PE_BASE_HEADER_LEN 8
- #define PRE_BLOCK_SIZE 8 /* for decryption blocks */
- /*
- * Platform neutral encode/decode macros.
- */
- #define GetInt2(c) ((c[0] << 8) | c[1])
- #define GetInt4(c) (((unsigned long)c[0] << 24)|((unsigned long)c[1] << 16)
- |((unsigned long)c[2] << 8)| ((unsigned long)c[3]))
- #define PutInt2(c,i) ((c[1] = (i) & 0xff), (c[0] = ((i) >> 8) & 0xff))
- #define PutInt4(c,i) ((c[0]=((i) >> 24) & 0xff),(c[1]=((i) >> 16) & 0xff),
- (c[2] = ((i) >> 8) & 0xff), (c[3] = (i) & 0xff))
- /*
- * magic numbers.
- */
- #define PRE_MAGIC 0xc0de
- #define PRE_VERSION 0x1010
- #define PRE_FORTEZZA_FILE 0x00ff /* pre-encrypted file on disk */
- #define PRE_FORTEZZA_STREAM 0x00f5 /* pre-encrypted file in stream */
- #define PRE_FORTEZZA_GEN_STREAM 0x00f6 /* Generated pre-encrypted file */
- #define PRE_FIXED_FILE 0x000f /* fixed key on disk */
- #define PRE_RSA_FILE 0x001f /* RSA in file */
- #define PRE_FIXED_STREAM 0x0005 /* fixed key in stream */
- /*
- * internal implementation info
- */
- /* convert an existing stream header to a version with local parameters */
- PEHeader *SSL_PreencryptedStreamToFile(PRFileDesc *fd, PEHeader *,
- int *headerSize);
- /* convert an existing file header to one suitable for streaming out */
- PEHeader *SSL_PreencryptedFileToStream(PRFileDesc *fd, PEHeader *,
- int *headerSize);