mirror of https://github.com/acidanthera/audk.git
355 lines
9.2 KiB
C
355 lines
9.2 KiB
C
/** @file
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SHA-384 and SHA-512 Digest Wrapper Implementations over OpenSSL.
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Copyright (c) 2014, 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/sha.h>
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/**
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Retrieves the size, in bytes, of the context buffer required for SHA-384 hash operations.
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@return The size, in bytes, of the context buffer required for SHA-384 hash operations.
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**/
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UINTN
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EFIAPI
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Sha384GetContextSize (
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VOID
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)
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{
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//
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// Retrieves OpenSSL SHA-384 Context Size
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//
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return (UINTN) (sizeof (SHA512_CTX));
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}
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/**
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Initializes user-supplied memory pointed by Sha384Context as SHA-384 hash context for
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subsequent use.
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If Sha384Context is NULL, then return FALSE.
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@param[out] Sha384Context Pointer to SHA-384 context being initialized.
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@retval TRUE SHA-384 context initialization succeeded.
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@retval FALSE SHA-384 context initialization failed.
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**/
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BOOLEAN
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EFIAPI
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Sha384Init (
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OUT VOID *Sha384Context
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)
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{
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//
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// Check input parameters.
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//
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if (Sha384Context == NULL) {
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return FALSE;
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}
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//
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// OpenSSL SHA-384 Context Initialization
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//
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return (BOOLEAN) (SHA384_Init ((SHA512_CTX *) Sha384Context));
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}
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/**
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Makes a copy of an existing SHA-384 context.
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If Sha384Context is NULL, then return FALSE.
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If NewSha384Context is NULL, then return FALSE.
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If this interface is not supported, then return FALSE.
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@param[in] Sha384Context Pointer to SHA-384 context being copied.
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@param[out] NewSha384Context Pointer to new SHA-384 context.
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@retval TRUE SHA-384 context copy succeeded.
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@retval FALSE SHA-384 context copy failed.
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@retval FALSE This interface is not supported.
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**/
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BOOLEAN
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EFIAPI
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Sha384Duplicate (
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IN CONST VOID *Sha384Context,
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OUT VOID *NewSha384Context
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)
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{
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//
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// Check input parameters.
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//
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if (Sha384Context == NULL || NewSha384Context == NULL) {
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return FALSE;
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}
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CopyMem (NewSha384Context, Sha384Context, sizeof (SHA512_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 SHA-384 context.
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This function performs SHA-384 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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SHA-384 context should be already correctly intialized by Sha384Init(), and should not be finalized
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by Sha384Final(). Behavior with invalid context is undefined.
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If Sha384Context is NULL, then return FALSE.
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@param[in, out] Sha384Context Pointer to the SHA-384 context.
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@param[in] Data Pointer to the buffer containing the data to be hashed.
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@param[in] DataSize Size of Data buffer in bytes.
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@retval TRUE SHA-384 data digest succeeded.
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@retval FALSE SHA-384 data digest failed.
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**/
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BOOLEAN
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EFIAPI
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Sha384Update (
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IN OUT VOID *Sha384Context,
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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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// Check input parameters.
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//
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if (Sha384Context == NULL) {
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return FALSE;
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}
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//
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// Check invalid parameters, in case that only DataLength was checked in OpenSSL
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//
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if (Data == NULL && DataSize != 0) {
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return FALSE;
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}
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//
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// OpenSSL SHA-384 Hash Update
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//
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return (BOOLEAN) (SHA384_Update ((SHA512_CTX *) Sha384Context, Data, DataSize));
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}
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/**
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Completes computation of the SHA-384 digest value.
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This function completes SHA-384 hash computation and retrieves the digest value into
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the specified memory. After this function has been called, the SHA-384 context cannot
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be used again.
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SHA-384 context should be already correctly intialized by Sha384Init(), and should not be
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finalized by Sha384Final(). Behavior with invalid SHA-384 context is undefined.
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If Sha384Context is NULL, then return FALSE.
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If HashValue is NULL, then return FALSE.
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@param[in, out] Sha384Context Pointer to the SHA-384 context.
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@param[out] HashValue Pointer to a buffer that receives the SHA-384 digest
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value (48 bytes).
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@retval TRUE SHA-384 digest computation succeeded.
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@retval FALSE SHA-384 digest computation failed.
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**/
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BOOLEAN
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EFIAPI
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Sha384Final (
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IN OUT VOID *Sha384Context,
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OUT UINT8 *HashValue
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)
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{
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//
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// Check input parameters.
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//
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if (Sha384Context == NULL || HashValue == NULL) {
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return FALSE;
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}
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//
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// OpenSSL SHA-384 Hash Finalization
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//
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return (BOOLEAN) (SHA384_Final (HashValue, (SHA512_CTX *) Sha384Context));
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}
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/**
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Retrieves the size, in bytes, of the context buffer required for SHA-512 hash operations.
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@return The size, in bytes, of the context buffer required for SHA-512 hash operations.
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**/
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UINTN
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EFIAPI
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Sha512GetContextSize (
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VOID
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)
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{
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//
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// Retrieves OpenSSL SHA-512 Context Size
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//
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return (UINTN) (sizeof (SHA512_CTX));
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}
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/**
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Initializes user-supplied memory pointed by Sha512Context as SHA-512 hash context for
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subsequent use.
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If Sha512Context is NULL, then return FALSE.
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@param[out] Sha512Context Pointer to SHA-512 context being initialized.
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@retval TRUE SHA-512 context initialization succeeded.
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@retval FALSE SHA-512 context initialization failed.
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**/
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BOOLEAN
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EFIAPI
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Sha512Init (
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OUT VOID *Sha512Context
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)
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{
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//
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// Check input parameters.
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//
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if (Sha512Context == NULL) {
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return FALSE;
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}
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//
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// OpenSSL SHA-512 Context Initialization
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//
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return (BOOLEAN) (SHA512_Init ((SHA512_CTX *) Sha512Context));
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}
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/**
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Makes a copy of an existing SHA-512 context.
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If Sha512Context is NULL, then return FALSE.
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If NewSha512Context is NULL, then return FALSE.
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If this interface is not supported, then return FALSE.
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@param[in] Sha512Context Pointer to SHA-512 context being copied.
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@param[out] NewSha512Context Pointer to new SHA-512 context.
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@retval TRUE SHA-512 context copy succeeded.
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@retval FALSE SHA-512 context copy failed.
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@retval FALSE This interface is not supported.
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**/
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BOOLEAN
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EFIAPI
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Sha512Duplicate (
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IN CONST VOID *Sha512Context,
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OUT VOID *NewSha512Context
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)
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{
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//
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// Check input parameters.
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//
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if (Sha512Context == NULL || NewSha512Context == NULL) {
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return FALSE;
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}
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CopyMem (NewSha512Context, Sha512Context, sizeof (SHA512_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 SHA-512 context.
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This function performs SHA-512 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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SHA-512 context should be already correctly intialized by Sha512Init(), and should not be finalized
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by Sha512Final(). Behavior with invalid context is undefined.
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If Sha512Context is NULL, then return FALSE.
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@param[in, out] Sha512Context Pointer to the SHA-512 context.
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@param[in] Data Pointer to the buffer containing the data to be hashed.
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@param[in] DataSize Size of Data buffer in bytes.
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@retval TRUE SHA-512 data digest succeeded.
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@retval FALSE SHA-512 data digest failed.
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**/
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BOOLEAN
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EFIAPI
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Sha512Update (
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IN OUT VOID *Sha512Context,
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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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// Check input parameters.
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//
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if (Sha512Context == NULL) {
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return FALSE;
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}
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//
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// Check invalid parameters, in case that only DataLength was checked in OpenSSL
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//
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if (Data == NULL && DataSize != 0) {
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return FALSE;
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}
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//
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// OpenSSL SHA-512 Hash Update
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//
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return (BOOLEAN) (SHA512_Update ((SHA512_CTX *) Sha512Context, Data, DataSize));
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}
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/**
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Completes computation of the SHA-512 digest value.
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This function completes SHA-512 hash computation and retrieves the digest value into
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the specified memory. After this function has been called, the SHA-512 context cannot
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be used again.
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SHA-512 context should be already correctly intialized by Sha512Init(), and should not be
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finalized by Sha512Final(). Behavior with invalid SHA-512 context is undefined.
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If Sha512Context is NULL, then return FALSE.
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If HashValue is NULL, then return FALSE.
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@param[in, out] Sha512Context Pointer to the SHA-512 context.
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@param[out] HashValue Pointer to a buffer that receives the SHA-512 digest
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value (64 bytes).
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@retval TRUE SHA-512 digest computation succeeded.
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@retval FALSE SHA-512 digest computation failed.
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**/
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BOOLEAN
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EFIAPI
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Sha512Final (
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IN OUT VOID *Sha512Context,
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OUT UINT8 *HashValue
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)
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{
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//
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// Check input parameters.
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//
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if (Sha512Context == NULL || HashValue == NULL) {
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return FALSE;
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}
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//
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// OpenSSL SHA-512 Hash Finalization
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//
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return (BOOLEAN) (SHA384_Final (HashValue, (SHA512_CTX *) Sha512Context));
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}
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