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70 lines
2.4 KiB
70 lines
2.4 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1997 - 1999
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//
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// File: sp3crmsg.h
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//
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//--------------------------------------------------------------------------
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//+-------------------------------------------------------------------------
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// File: sp3crmsg.h
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//
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// Contents: Data structure for enabling NT 4.0 SP3 and IE 3.02 compatible
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// PKCS #7 EnvelopeData messages.
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//
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// The SP3 version of crypt32.dll failed to byte reverse the
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// encrypted symmetric key. It also added zero salt instead
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// of no salt.
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//--------------------------------------------------------------------------
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#ifndef __SP3CRMSG_H__
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#define __SP3CRMSG_H__
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#include <wincrypt.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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//+-------------------------------------------------------------------------
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// To enable SP3 compatible encryption, the pvEncryptionAuxInfo field in either
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// CMSG_ENVELOPED_ENCODE_INFO for CryptMsgOpenToEncode() or
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// CRYPT_ENCRYPT_MESSAGE_PARA for CryptSignAndEncryptMessage() or
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// CryptSignAndEncryptMessage() should point to the following
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// CMSG_SP3_COMPATIBLE_AUX_INFO data structure.
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//--------------------------------------------------------------------------
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// The following is defined in newer versions of wincrypt.h, starting with
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// IE 4.01 and NT 5.0 Beta 2
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#ifndef CMSG_SP3_COMPATIBLE_ENCRYPT_FLAG
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//+-------------------------------------------------------------------------
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// CMSG_SP3_COMPATIBLE_AUX_INFO
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//
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// AuxInfo for enabling SP3 compatible encryption.
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//
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// The CMSG_SP3_COMPATIBLE_ENCRYPT_FLAG is set in dwFlags to enable SP3
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// compatible encryption. When set, uses zero salt instead of no salt,
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// the encryption algorithm parameters are NULL instead of containing the
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// encoded RC2 parameters or encoded IV octet string and the encrypted
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// symmetric key is encoded little endian instead of big endian.
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//--------------------------------------------------------------------------
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typedef struct _CMSG_SP3_COMPATIBLE_AUX_INFO {
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DWORD cbSize;
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DWORD dwFlags;
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} CMSG_SP3_COMPATIBLE_AUX_INFO, *PCMSG_SP3_COMPATIBLE_AUX_INFO;
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#define CMSG_SP3_COMPATIBLE_ENCRYPT_FLAG 0x80000000
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#endif // CMSG_SP3_COMPATIBLE_ENCRYPT_FLAG
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#ifdef __cplusplus
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} // Balance extern "C" above
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#endif
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#endif // __SP3CRMSG_H__
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