From b86e8e7e9c4d4191d556a52fbd2c3e614ddb246e Mon Sep 17 00:00:00 2001 From: Peter Jones Date: Mon, 8 Oct 2018 13:31:30 -0400 Subject: Add CryptoPkg/Library/BaseCryptLib/ and CryptoPkg/Library/OpensslLib/ --- CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c | 211 ++++++++++++++++++++++ 1 file changed, 211 insertions(+) create mode 100644 CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c (limited to 'CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c') diff --git a/CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c b/CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c new file mode 100644 index 00000000..3064c443 --- /dev/null +++ b/CryptoPkg/Library/BaseCryptLib/Cipher/CryptArc4.c @@ -0,0 +1,211 @@ +/** @file + ARC4 Wrapper Implementation over OpenSSL. + +Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.
+This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which accompanies this distribution. The full text of the license may be found at +http://opensource.org/licenses/bsd-license.php + +THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ + +#include "InternalCryptLib.h" +#include + +/** + Retrieves the size, in bytes, of the context buffer required for ARC4 operations. + + @return The size, in bytes, of the context buffer required for ARC4 operations. + +**/ +UINTN +EFIAPI +Arc4GetContextSize ( + VOID + ) +{ + // + // Memory for 2 copies of RC4_KEY is allocated, one for working copy, and the other + // for backup copy. When Arc4Reset() is called, we can use the backup copy to restore + // the working copy to the initial state. + // + return (UINTN) (2 * sizeof (RC4_KEY)); +} + +/** + Initializes user-supplied memory as ARC4 context for subsequent use. + + This function initializes user-supplied memory pointed by Arc4Context as ARC4 context. + In addition, it sets up all ARC4 key materials for subsequent encryption and decryption + operations. + + If Arc4Context is NULL, then return FALSE. + If Key is NULL, then return FALSE. + If KeySize does not in the range of [5, 256] bytes, then return FALSE. + + @param[out] Arc4Context Pointer to ARC4 context being initialized. + @param[in] Key Pointer to the user-supplied ARC4 key. + @param[in] KeySize Size of ARC4 key in bytes. + + @retval TRUE ARC4 context initialization succeeded. + @retval FALSE ARC4 context initialization failed. + +**/ +BOOLEAN +EFIAPI +Arc4Init ( + OUT VOID *Arc4Context, + IN CONST UINT8 *Key, + IN UINTN KeySize + ) +{ + RC4_KEY *Rc4Key; + + // + // Check input parameters. + // + if (Arc4Context == NULL || Key == NULL || (KeySize < 5 || KeySize > 256)) { + return FALSE; + } + + Rc4Key = (RC4_KEY *) Arc4Context; + + RC4_set_key (Rc4Key, (UINT32) KeySize, Key); + + CopyMem (Rc4Key + 1, Rc4Key, sizeof (RC4_KEY)); + + return TRUE; +} + +/** + Performs ARC4 encryption on a data buffer of the specified size. + + This function performs ARC4 encryption on data buffer pointed by Input, of specified + size of InputSize. + Arc4Context should be already correctly initialized by Arc4Init(). Behavior with + invalid ARC4 context is undefined. + + If Arc4Context is NULL, then return FALSE. + If Input is NULL, then return FALSE. + If Output is NULL, then return FALSE. + + @param[in, out] Arc4Context Pointer to the ARC4 context. + @param[in] Input Pointer to the buffer containing the data to be encrypted. + @param[in] InputSize Size of the Input buffer in bytes. + @param[out] Output Pointer to a buffer that receives the ARC4 encryption output. + + @retval TRUE ARC4 encryption succeeded. + @retval FALSE ARC4 encryption failed. + +**/ +BOOLEAN +EFIAPI +Arc4Encrypt ( + IN OUT VOID *Arc4Context, + IN CONST UINT8 *Input, + IN UINTN InputSize, + OUT UINT8 *Output + ) +{ + RC4_KEY *Rc4Key; + + // + // Check input parameters. + // + if (Arc4Context == NULL || Input == NULL || Output == NULL || InputSize > INT_MAX) { + return FALSE; + } + + Rc4Key = (RC4_KEY *) Arc4Context; + + RC4 (Rc4Key, (UINT32) InputSize, Input, Output); + + return TRUE; +} + +/** + Performs ARC4 decryption on a data buffer of the specified size. + + This function performs ARC4 decryption on data buffer pointed by Input, of specified + size of InputSize. + Arc4Context should be already correctly initialized by Arc4Init(). Behavior with + invalid ARC4 context is undefined. + + If Arc4Context is NULL, then return FALSE. + If Input is NULL, then return FALSE. + If Output is NULL, then return FALSE. + + @param[in, out] Arc4Context Pointer to the ARC4 context. + @param[in] Input Pointer to the buffer containing the data to be decrypted. + @param[in] InputSize Size of the Input buffer in bytes. + @param[out] Output Pointer to a buffer that receives the ARC4 decryption output. + + @retval TRUE ARC4 decryption succeeded. + @retval FALSE ARC4 decryption failed. + +**/ +BOOLEAN +EFIAPI +Arc4Decrypt ( + IN OUT VOID *Arc4Context, + IN UINT8 *Input, + IN UINTN InputSize, + OUT UINT8 *Output + ) +{ + RC4_KEY *Rc4Key; + + // + // Check input parameters. + // + if (Arc4Context == NULL || Input == NULL || Output == NULL || InputSize > INT_MAX) { + return FALSE; + } + + Rc4Key = (RC4_KEY *) Arc4Context; + + RC4 (Rc4Key, (UINT32) InputSize, Input, Output); + + return TRUE; +} + +/** + Resets the ARC4 context to the initial state. + + The function resets the ARC4 context to the state it had immediately after the + ARC4Init() function call. + Contrary to ARC4Init(), Arc4Reset() requires no secret key as input, but ARC4 context + should be already correctly initialized by ARC4Init(). + + If Arc4Context is NULL, then return FALSE. + + @param[in, out] Arc4Context Pointer to the ARC4 context. + + @retval TRUE ARC4 reset succeeded. + @retval FALSE ARC4 reset failed. + +**/ +BOOLEAN +EFIAPI +Arc4Reset ( + IN OUT VOID *Arc4Context + ) +{ + RC4_KEY *Rc4Key; + + // + // Check input parameters. + // + if (Arc4Context == NULL) { + return FALSE; + } + + Rc4Key = (RC4_KEY *) Arc4Context; + + CopyMem (Rc4Key, Rc4Key + 1, sizeof (RC4_KEY)); + + return TRUE; +} -- cgit v1.2.3