132 lines
2.7 KiB
C
132 lines
2.7 KiB
C
/*++
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Copyright (c) 1989-1997 Microsoft Corporation
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Module Name:
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block.c
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Abstract:
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Block encryption functions implementation :
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RtlEncryptBlock
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RtlEncrypStdBlock
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Author:
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David Chalmers (Davidc) 10-21-91
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Revision History:
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Scott Field (sfield) 03-Nov-97
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Removed critical section around crypto calls.
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Adam Barr (adamba) 15-Dec-97
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Modified from private\security\lsa\crypt\dll
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--*/
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#include <rdrssp.h>
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NTSTATUS
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RtlEncryptBlock(
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IN PCLEAR_BLOCK ClearBlock,
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IN PBLOCK_KEY BlockKey,
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OUT PCYPHER_BLOCK CypherBlock
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)
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/*++
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Routine Description:
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Takes a block of data and encrypts it with a key producing
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an encrypted block of data.
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Arguments:
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ClearBlock - The block of data that is to be encrypted.
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BlockKey - The key to use to encrypt data
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CypherBlock - Encrypted data is returned here
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Return Values:
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STATUS_SUCCESS - The data was encrypted successfully. The encrypted
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data block is in CypherBlock
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STATUS_UNSUCCESSFUL - Something failed. The CypherBlock is undefined.
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--*/
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{
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unsigned Result;
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Result = DES_ECB_LM(ENCR_KEY,
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(const char *)BlockKey,
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(unsigned char *)ClearBlock,
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(unsigned char *)CypherBlock
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);
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if (Result == CRYPT_OK) {
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return(STATUS_SUCCESS);
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} else {
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KdPrint(("RDRSSP: RtlEncryptBlock failed %x\n\r", Result));
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return(STATUS_UNSUCCESSFUL);
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}
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}
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NTSTATUS
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RtlEncryptStdBlock(
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IN PBLOCK_KEY BlockKey,
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OUT PCYPHER_BLOCK CypherBlock
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)
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/*++
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Routine Description:
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Takes a block key encrypts the standard text block with it.
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The resulting encrypted block is returned.
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This is a One-Way-Function - the key cannot be recovered from the
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encrypted data block.
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Arguments:
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BlockKey - The key to use to encrypt the standard text block.
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CypherBlock - The encrypted data is returned here
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Return Values:
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STATUS_SUCCESS - The encryption was successful.
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The result is in CypherBlock
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STATUS_UNSUCCESSFUL - Something failed. The CypherBlock is undefined.
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--*/
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{
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unsigned Result;
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char StdEncrPwd[] = "KGS!@#$%";
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Result = DES_ECB_LM(ENCR_KEY,
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(const char *)BlockKey,
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(unsigned char *)StdEncrPwd,
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(unsigned char *)CypherBlock
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);
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if (Result == CRYPT_OK) {
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return(STATUS_SUCCESS);
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} else {
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#if DBG
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DbgPrint("EncryptStd failed\n\r");
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#endif
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return(STATUS_UNSUCCESSFUL);
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}
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}
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