177 lines
2.9 KiB
C
177 lines
2.9 KiB
C
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//
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//
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#ifndef KERNEL_MODE
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#else
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#include <ntddk.h>
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#include <winerror.h>
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#endif
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#include <string.h>
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#include <malloc.h>
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#include <security.h>
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#include <cryptdll.h>
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#include <kerbcon.h>
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#include "sha.h"
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NTSTATUS
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ShaWrapInitialize(ULONG dwSeed,
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PCHECKSUM_BUFFER * ppcsBuffer);
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NTSTATUS
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ShaWrapInitializeEx(PUCHAR Seed, ULONG dwSeedLength, ULONG MessageType,
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PCHECKSUM_BUFFER * ppcsBuffer);
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NTSTATUS
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ShaWrapSum( PCHECKSUM_BUFFER pcsBuffer,
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ULONG cbData,
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PUCHAR pbData );
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NTSTATUS
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ShaWrapFinalize( PCHECKSUM_BUFFER pcsBuffer,
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PUCHAR pbSum);
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NTSTATUS
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ShaWrapFinish(PCHECKSUM_BUFFER * ppcsBuffer);
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CHECKSUM_FUNCTION csfSHA = {
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KERB_CHECKSUM_SHA1,
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A_SHA_DIGEST_LEN,
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CKSUM_COLLISION,
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ShaWrapInitialize,
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ShaWrapSum,
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ShaWrapFinalize,
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ShaWrapFinish,
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ShaWrapInitializeEx,
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NULL
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};
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#ifdef KERNEL_MODE
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#pragma alloc_text( PAGEMSG, ShaWrapInitialize )
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#pragma alloc_text( PAGEMSG, ShaWrapSum )
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#pragma alloc_text( PAGEMSG, ShaWrapFinalize )
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#pragma alloc_text( PAGEMSG, ShaWrapFinish )
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#pragma alloc_text( PAGEMSG, ShaWrapInitializeEx )
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#endif
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NTSTATUS
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ShaWrapInitialize(
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ULONG dwSeed,
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PCHECKSUM_BUFFER * ppcsBuffer)
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{
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A_SHA_CTX * pContext;
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#ifdef KERNEL_MODE
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pContext = ExAllocatePool( NonPagedPool, sizeof( A_SHA_CTX ) );
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#else
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pContext = LocalAlloc( LMEM_FIXED, sizeof( A_SHA_CTX ) );
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#endif
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if ( pContext )
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{
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A_SHAInit( pContext );
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*ppcsBuffer = pContext;
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return( SEC_E_OK );
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}
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return( STATUS_NO_MEMORY );
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}
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NTSTATUS
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ShaWrapInitializeEx(
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PUCHAR Seed,
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ULONG SeedLength,
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ULONG MessageType,
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PCHECKSUM_BUFFER * ppcsBuffer)
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{
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A_SHA_CTX * pContext;
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#ifdef KERNEL_MODE
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pContext = ExAllocatePool( NonPagedPool, sizeof( A_SHA_CTX ) );
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#else
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pContext = LocalAlloc( LMEM_FIXED, sizeof( A_SHA_CTX ) );
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#endif
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if ( pContext )
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{
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A_SHAInit( pContext );
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*ppcsBuffer = pContext;
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return( SEC_E_OK );
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}
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return( STATUS_NO_MEMORY );
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}
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NTSTATUS
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ShaWrapSum(
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PCHECKSUM_BUFFER pcsBuffer,
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ULONG cbData,
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PUCHAR pbData )
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{
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A_SHA_CTX * pContext;
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pContext = (A_SHA_CTX *) pcsBuffer ;
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A_SHAUpdate( pContext, pbData, cbData );
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return( STATUS_SUCCESS );
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}
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NTSTATUS
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ShaWrapFinalize(
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PCHECKSUM_BUFFER pcsBuffer,
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PUCHAR pbSum)
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{
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A_SHA_CTX * pContext;
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pContext = (A_SHA_CTX *) pcsBuffer ;
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A_SHAFinal( pContext, pbSum );
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return( STATUS_SUCCESS );
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}
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NTSTATUS
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ShaWrapFinish(
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PCHECKSUM_BUFFER * ppcsBuffer)
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{
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RtlZeroMemory( *ppcsBuffer, sizeof( A_SHA_CTX ) );
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#ifdef KERNEL_MODE
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ExFreePool( *ppcsBuffer );
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#else
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LocalFree( *ppcsBuffer );
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#endif
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*ppcsBuffer = NULL ;
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return( STATUS_SUCCESS );
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}
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