56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
#ifndef _IPXE_ECB_H
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#define _IPXE_ECB_H
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/** @file
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*
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* Electronic codebook (ECB)
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#include <ipxe/crypto.h>
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extern void ecb_encrypt ( void *ctx, const void *src, void *dst,
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size_t len, struct cipher_algorithm *raw_cipher );
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extern void ecb_decrypt ( void *ctx, const void *src, void *dst,
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size_t len, struct cipher_algorithm *raw_cipher );
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/**
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* Create a cipher-block chaining mode of behaviour of an existing cipher
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*
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* @v _ecb_name Name for the new ECB cipher
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* @v _ecb_cipher New cipher algorithm
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* @v _raw_cipher Underlying cipher algorithm
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* @v _raw_context Context structure for the underlying cipher
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* @v _blocksize Cipher block size
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*/
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#define ECB_CIPHER( _ecb_name, _ecb_cipher, _raw_cipher, _raw_context, \
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_blocksize ) \
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static int _ecb_name ## _setkey ( void *ctx, const void *key, \
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size_t keylen ) { \
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return cipher_setkey ( &_raw_cipher, ctx, key, keylen ); \
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} \
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static void _ecb_name ## _setiv ( void *ctx, const void *iv ) { \
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cipher_setiv ( &_raw_cipher, ctx, iv ); \
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} \
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static void _ecb_name ## _encrypt ( void *ctx, const void *src, \
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void *dst, size_t len ) { \
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ecb_encrypt ( ctx, src, dst, len, &_raw_cipher ); \
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} \
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static void _ecb_name ## _decrypt ( void *ctx, const void *src, \
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void *dst, size_t len ) { \
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ecb_decrypt ( ctx, src, dst, len, &_raw_cipher ); \
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} \
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struct cipher_algorithm _ecb_cipher = { \
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.name = #_ecb_name, \
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.ctxsize = sizeof ( _raw_context ), \
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.blocksize = _blocksize, \
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.setkey = _ecb_name ## _setkey, \
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.setiv = _ecb_name ## _setiv, \
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.encrypt = _ecb_name ## _encrypt, \
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.decrypt = _ecb_name ## _decrypt, \
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};
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#endif /* _IPXE_ECB_H */
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