Update CryptoPkg for new ciphers (HMAC, Block Cipher, etc) supports.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10997 6f19259b-4bc3-4df7-8a09-765794883524
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185
CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
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185
CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1.c
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/** @file
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HMAC-SHA1 Wrapper Implementation over OpenSSL.
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Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "InternalCryptLib.h"
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#include <openssl/hmac.h>
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/**
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Retrieves the size, in bytes, of the context buffer required for HMAC-SHA1 operations.
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@return The size, in bytes, of the context buffer required for HMAC-SHA1 operations.
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**/
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UINTN
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EFIAPI
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HmacSha1GetContextSize (
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VOID
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)
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{
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//
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// Retrieves the OpenSSL HMAC-SHA1 Context Size
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//
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return (UINTN)(sizeof (HMAC_CTX));
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}
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/**
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Initializes user-supplied memory pointed by HmacSha1Context as HMAC-SHA1 context for
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subsequent use.
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If HmacSha1Context is NULL, then ASSERT().
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@param[out] HmacSha1Context Pointer to HMAC-SHA1 context being initialized.
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@param[in] Key Pointer to the user-supplied key.
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@param[in] KeySize Key size in bytes.
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@retval TRUE HMAC-SHA1 context initialization succeeded.
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@retval FALSE HMAC-SHA1 context initialization failed.
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**/
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BOOLEAN
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EFIAPI
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HmacSha1Init (
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OUT VOID *HmacSha1Context,
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IN CONST UINT8 *Key,
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IN UINTN KeySize
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)
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{
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//
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// ASSERT if HmacSha1Context is NULL.
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//
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ASSERT (HmacSha1Context != NULL);
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//
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// OpenSSL HMAC-SHA1 Context Initialization
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//
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HMAC_CTX_init (HmacSha1Context);
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HMAC_Init_ex (HmacSha1Context, Key, (UINT32) KeySize, EVP_sha1(), NULL);
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return TRUE;
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}
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/**
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Makes a copy of an existing HMAC-SHA1 context.
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If HmacSha1Context is NULL, then ASSERT().
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If NewHmacSha1Context is NULL, then ASSERT().
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@param[in] HmacSha1Context Pointer to HMAC-SHA1 context being copied.
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@param[out] NewHmacSha1Context Pointer to new HMAC-SHA1 context.
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@retval TRUE HMAC-SHA1 context copy succeeded.
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@retval FALSE HMAC-SHA1 context copy failed.
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**/
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BOOLEAN
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EFIAPI
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HmacSha1Duplicate (
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IN CONST VOID *HmacSha1Context,
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OUT VOID *NewHmacSha1Context
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)
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{
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CopyMem (NewHmacSha1Context, HmacSha1Context, sizeof (HMAC_CTX));
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return TRUE;
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}
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/**
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Digests the input data and updates HMAC-SHA1 context.
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This function performs HMAC-SHA1 digest on a data buffer of the specified size.
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It can be called multiple times to compute the digest of long or discontinuous data streams.
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HMAC-SHA1 context should be already correctly intialized by HmacSha1Init(), and should not
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be finalized by HmacSha1Final(). Behavior with invalid context is undefined.
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If HmacSha1Context is NULL, then ASSERT().
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@param[in, out] HmacSha1Context Pointer to the HMAC-SHA1 context.
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@param[in] Data Pointer to the buffer containing the data to be digested.
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@param[in] DataSize Size of Data buffer in bytes.
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@retval TRUE HMAC-SHA1 data digest succeeded.
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@retval FALSE HMAC-SHA1 data digest failed.
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**/
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BOOLEAN
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EFIAPI
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HmacSha1Update (
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IN OUT VOID *HmacSha1Context,
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IN CONST VOID *Data,
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IN UINTN DataSize
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)
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{
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//
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// ASSERT if HmacSha1Context is NULL
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//
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ASSERT (HmacSha1Context != NULL);
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//
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// ASSERT if invalid parameters, in case that only DataLength was checked in OpenSSL
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//
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if (Data == NULL) {
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ASSERT (DataSize == 0);
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}
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//
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// OpenSSL HMAC-SHA1 digest update
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//
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HMAC_Update (HmacSha1Context, Data, DataSize);
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return TRUE;
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}
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/**
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Completes computation of the HMAC-SHA1 digest value.
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This function completes HMAC-SHA1 digest computation and retrieves the digest value into
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the specified memory. After this function has been called, the HMAC-SHA1 context cannot
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be used again.
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HMAC-SHA1 context should be already correctly intialized by HmacSha1Init(), and should
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not be finalized by HmacSha1Final(). Behavior with invalid HMAC-SHA1 context is undefined.
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If HmacSha1Context is NULL, then ASSERT().
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If HmacValue is NULL, then ASSERT().
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@param[in, out] HmacSha1Context Pointer to the HMAC-SHA1 context.
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@param[out] HmacValue Pointer to a buffer that receives the HMAC-SHA1 digest
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value (20 bytes).
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@retval TRUE HMAC-SHA1 digest computation succeeded.
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@retval FALSE HMAC-SHA1 digest computation failed.
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**/
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BOOLEAN
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EFIAPI
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HmacSha1Final (
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IN OUT VOID *HmacSha1Context,
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OUT UINT8 *HmacValue
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)
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{
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UINT32 Length;
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//
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// ASSERT if HmacSha1Context is NULL or HmacValue is NULL
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//
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ASSERT (HmacSha1Context != NULL);
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ASSERT (HmacValue != NULL);
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//
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// OpenSSL HMAC-SHA1 digest finalization
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//
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HMAC_Final (HmacSha1Context, HmacValue, &Length);
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HMAC_CTX_cleanup (HmacSha1Context);
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return TRUE;
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}
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