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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197
CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c
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197
CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c
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/** @file
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ARC4 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/rc4.h>
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/**
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Retrieves the size, in bytes, of the context buffer required for ARC4 operations.
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@return The size, in bytes, of the context buffer required for ARC4 operations.
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**/
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UINTN
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EFIAPI
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Arc4GetContextSize (
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VOID
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)
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{
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//
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// Memory for 2 copies of RC4_KEY is allocated, one for working copy, and the other
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// for backup copy. When Arc4Reset() is called, we can use the backup copy to restore
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// the working copy to the initial state.
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//
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return (UINTN) (2 * sizeof(RC4_KEY));
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}
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/**
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Initializes user-supplied memory as ARC4 context for subsequent use.
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This function initializes user-supplied memory pointed by Arc4Context as ARC4 context.
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In addtion, it sets up all ARC4 key materials for subsequent encryption and decryption
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operations.
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If Arc4Context is NULL, then ASSERT().
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If Key is NULL, then ASSERT().
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If KeySize does not in the range of [5, 256] bytes, then ASSERT().
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@param[out] Arc4Context Pointer to ARC4 context being initialized.
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@param[in] Key Pointer to the user-supplied ARC4 key.
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@param[in] KeySize Size of ARC4 key in bytes.
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@retval TRUE ARC4 context initialization succeeded.
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@retval FALSE ARC4 context initialization failed.
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**/
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BOOLEAN
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EFIAPI
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Arc4Init (
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OUT VOID *Arc4Context,
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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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RC4_KEY *Rc4Key;
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ASSERT (Arc4Context != NULL);
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ASSERT (Key != NULL);
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ASSERT ((KeySize >= 5) && (KeySize <= 256));
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Rc4Key = (RC4_KEY *) Arc4Context;
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RC4_set_key (Rc4Key, (UINT32) KeySize, Key);
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CopyMem (Rc4Key + 1, Rc4Key, sizeof(RC4_KEY));
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return TRUE;
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}
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/**
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Performs ARC4 encryption on a data buffer of the specified size.
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This function performs ARC4 encryption on data buffer pointed by Input, of specified
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size of InputSize.
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Arc4Context should be already correctly initialized by Arc4Init(). Behavior with
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invalid ARC4 context is undefined.
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If Arc4Context is NULL, then ASSERT().
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If Input is NULL, then ASSERT().
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If Output is NULL, then ASSERT().
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@param[in, out] Arc4Context Pointer to the ARC4 context.
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@param[in] Input Pointer to the buffer containing the data to be encrypted.
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@param[in] InputSize Size of the Input buffer in bytes.
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@param[out] Output Pointer to a buffer that receives the ARC4 encryption output.
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@retval TRUE ARC4 encryption succeeded.
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@retval FALSE ARC4 encryption failed.
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**/
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BOOLEAN
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EFIAPI
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Arc4Encrypt (
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IN OUT VOID *Arc4Context,
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IN CONST UINT8 *Input,
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IN UINTN InputSize,
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OUT UINT8 *Output
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)
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{
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RC4_KEY *Rc4Key;
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ASSERT (Arc4Context != NULL);
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ASSERT (Input != NULL);
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ASSERT (Output != NULL);
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Rc4Key = (RC4_KEY *) Arc4Context;
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RC4 (Rc4Key, (UINT32) InputSize, Input, Output);
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return TRUE;
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}
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/**
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Performs ARC4 decryption on a data buffer of the specified size.
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This function performs ARC4 decryption on data buffer pointed by Input, of specified
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size of InputSize.
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Arc4Context should be already correctly initialized by Arc4Init(). Behavior with
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invalid ARC4 context is undefined.
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If Arc4Context is NULL, then ASSERT().
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If Input is NULL, then ASSERT().
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If Output is NULL, then ASSERT().
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@param[in, out] Arc4Context Pointer to the ARC4 context.
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@param[in] Input Pointer to the buffer containing the data to be decrypted.
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@param[in] InputSize Size of the Input buffer in bytes.
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@param[out] Output Pointer to a buffer that receives the ARC4 decryption output.
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@retval TRUE ARC4 decryption succeeded.
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@retval FALSE ARC4 decryption failed.
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**/
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BOOLEAN
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EFIAPI
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Arc4Decrypt (
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IN OUT VOID *Arc4Context,
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IN UINT8 *Input,
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IN UINTN InputSize,
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OUT UINT8 *Output
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)
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{
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RC4_KEY *Rc4Key;
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ASSERT (Arc4Context != NULL);
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ASSERT (Input != NULL);
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ASSERT (Output != NULL);
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Rc4Key = (RC4_KEY *) Arc4Context;
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RC4 (Rc4Key, (UINT32) InputSize, Input, Output);
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return TRUE;
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}
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/**
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Resets the ARC4 context to the initial state.
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The function resets the ARC4 context to the state it had immediately after the
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ARC4Init() function call.
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Contrary to ARC4Init(), Arc4Reset() requires no secret key as input, but ARC4 context
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should be already correctly initialized by ARC4Init().
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If Arc4Context is NULL, then ASSERT().
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@param[in, out] Arc4Context Pointer to the ARC4 context.
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@retval TRUE ARC4 reset succeeded.
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@retval FALSE ARC4 reset failed.
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**/
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BOOLEAN
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EFIAPI
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Arc4Reset (
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IN OUT VOID *Arc4Context
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)
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{
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RC4_KEY *Rc4Key;
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ASSERT (Arc4Context != NULL);
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Rc4Key = (RC4_KEY *) Arc4Context;
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CopyMem (Rc4Key, Rc4Key + 1, sizeof(RC4_KEY));
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return TRUE;
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}
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