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https://github.com/tianocore/edk2
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11d93e980c
This is preparation patch to build TCG TPM v2.0 implementation [0]. TCG TPM v2.0 uses AES_encrypt()/AES_decrpyt() in openssl library to implement its crypto operation. For this, add wrapper for AES_encrypt()/AES_decrpyt(). Link: https://github.com/TrustedComputingGroup/TPM[0] Signed-off-by: Yeoreum Yun <yeoreum.yun@arm.com>
173 lines
4.5 KiB
C
173 lines
4.5 KiB
C
/** @file
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AES Wrapper Implementation which does not provide real capabilities.
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Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "InternalCryptLib.h"
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/**
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Retrieves the size, in bytes, of the context buffer required for AES operations.
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Return zero to indicate this interface is not supported.
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@retval 0 This interface is not supported.
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**/
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UINTN
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EFIAPI
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AesGetContextSize (
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VOID
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)
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{
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ASSERT (FALSE);
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return 0;
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}
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/**
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Initializes user-supplied memory as AES context for subsequent use.
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Return FALSE to indicate this interface is not supported.
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@param[out] AesContext Pointer to AES context being initialized.
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@param[in] Key Pointer to the user-supplied AES key.
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@param[in] KeyLength Length of AES key in bits.
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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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AesInit (
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OUT VOID *AesContext,
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IN CONST UINT8 *Key,
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IN UINTN KeyLength
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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/**
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Performs AES encryption on a data buffer of the specified size in CBC mode.
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Return FALSE to indicate this interface is not supported.
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@param[in] AesContext Pointer to the AES 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[in] Ivec Pointer to initialization vector.
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@param[out] Output Pointer to a buffer that receives the AES encryption output.
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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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AesCbcEncrypt (
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IN VOID *AesContext,
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IN CONST UINT8 *Input,
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IN UINTN InputSize,
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IN CONST UINT8 *Ivec,
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OUT UINT8 *Output
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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/**
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Performs AES decryption on a data buffer of the specified size in CBC mode.
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Return FALSE to indicate this interface is not supported.
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@param[in] AesContext Pointer to the AES 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[in] Ivec Pointer to initialization vector.
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@param[out] Output Pointer to a buffer that receives the AES encryption output.
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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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AesCbcDecrypt (
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IN VOID *AesContext,
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IN CONST UINT8 *Input,
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IN UINTN InputSize,
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IN CONST UINT8 *Ivec,
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OUT UINT8 *Output
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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/**
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Performs AES encryption on single block (AES_BLOCK_SIZE)
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This function performs AES encryption on single block pointed by Input.
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Caller must perform padding, if necessary, to ensure single block size.
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AesContext should be already correctly initialized by AesInit().
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Behavior with invalid AES context is undefined.
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If AesContext is NULL, then return FALSE.
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If Input is NULL, then return FALSE.
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If Output is NULL, then return FALSE.
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@param[in] AesContext Pointer to the AES context.
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@param[in] Input Pointer to the buffer containing single block data
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@param[out] Output Pointer to a buffer that receives the AES encryption output.
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@retval TRUE AES encryption succeeded.
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@retval FALSE AES encryption failed.
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**/
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BOOLEAN
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EFIAPI
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AesEncrypt (
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IN VOID *AesContext,
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IN CONST UINT8 *Input,
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OUT UINT8 *Output
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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/**
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Performs AES decryption on single block (AES_BLOCK_SIZE)
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This function performs AES decryption on single block pointed by Input.
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Caller must perform padding, if necessary, to ensure single block size.
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AesContext should be already correctly initialized by AesInit().
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Behavior with invalid AES context is undefined.
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If AesContext is NULL, then return FALSE.
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If Input is NULL, then return FALSE.
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If Output is NULL, then return FALSE.
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@param[in] AesContext Pointer to the AES context.
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@param[in] Input Pointer to the buffer containing single block encrpyted data.
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@param[out] Output Pointer to a buffer that receives the AES decryption output.
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@retval TRUE AES decryption succeeded.
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@retval FALSE AES decryption failed.
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**/
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BOOLEAN
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EFIAPI
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AesDecrypt (
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IN VOID *AesContext,
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IN CONST UINT8 *Input,
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OUT UINT8 *Output
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)
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{
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ASSERT (FALSE);
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return FALSE;
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}
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