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b3a68ed095
DirtySDK (EA's Dirty Sockets library) will be used for the LiveAPI implementation, and depends on: EABase, EAThread.
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*H********************************************************************************/
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/*!
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\File cryptaes.h
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\Description
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An implementation of the AES-128 and AES-256 cipher, based on the FIPS
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standard, intended for use with the TLS AES cipher suites.
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This implementation deliberately uses the naming conventions from the
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standard where possible in order to aid comprehension.
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\Notes
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References:
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FIPS197 standard: http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf
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\Copyright
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Copyright (c) 2011 Electronic Arts
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\Version 01/20/2011 (jbrookes) First Version
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*/
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/********************************************************************************H*/
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#ifndef _cryptaes_h
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#define _cryptaes_h
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/*!
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\Moduledef CryptAes CryptAes
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\Modulemember Crypt
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*/
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//@{
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/*** Include files ****************************************************************/
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#include "DirtySDK/platform.h"
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/*** Defines **********************************************************************/
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#define CRYPTAES_MAXROUNDS (14)
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#define CRYPTAES_KEYTYPE_ENCRYPT (0)
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#define CRYPTAES_KEYTYPE_DECRYPT (1)
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/*** Macros ***********************************************************************/
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/*** Type Definitions *************************************************************/
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typedef struct CryptAesKeyScheduleT
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{
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uint16_t uNumRounds;
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uint16_t uKeyWords;
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uint32_t aKeySchedule[(CRYPTAES_MAXROUNDS+1)*8];
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} CryptAesKeyScheduleT;
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// opaque module state
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typedef struct CryptAesT CryptAesT;
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//! all fields are PRIVATE
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struct CryptAesT
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{
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CryptAesKeyScheduleT KeySchedule;
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uint8_t aInitVec[16]; //!< initialization vector/CBC state
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};
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/*** Variables ********************************************************************/
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/*** Functions ********************************************************************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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// initialize state for AES encryption/decryption module
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DIRTYCODE_API void CryptAesInit(CryptAesT *pAes, const uint8_t *pKeyBuf, int32_t iKeyLen, uint32_t uKeyType, const uint8_t *pInitVec);
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// encrypt data with the AES cipher in CBC mode
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DIRTYCODE_API void CryptAesEncrypt(CryptAesT *pAes, uint8_t *pBuffer, int32_t iLength);
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// decrypt data with the AES cipher in CBC mode
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DIRTYCODE_API void CryptAesDecrypt(CryptAesT *pAes, uint8_t *pBuffer, int32_t iLength);
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// encrypt a 16 byte data block with AES cipher
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DIRTYCODE_API void CryptAesEncryptBlock(CryptAesKeyScheduleT *pKeySchedule, const uint8_t *pInput, uint8_t *pOutput);
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// decrypt a 16 byte data block with AES cipher
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DIRTYCODE_API void CryptAesDecryptBlock(CryptAesKeyScheduleT *pKeySchedule, const uint8_t *pInput, uint8_t *pOutput);
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// initialize AES key schedule
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DIRTYCODE_API void CryptAesInitKeySchedule(CryptAesKeyScheduleT *pKeySchedule, const uint8_t *pKeyBuf, int32_t iKeyLen, uint32_t uKeyType);
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#ifdef __cplusplus
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}
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#endif
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//@}
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#endif // _cryptaes_h
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