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- #ifndef _GPXE_CBC_H
- #define _GPXE_CBC_H
-
- /** @file
- *
- * Cipher-block chaining
- *
- */
-
- #include <gpxe/crypto.h>
-
- /**
- * Set key
- *
- * @v ctx Context
- * @v key Key
- * @v keylen Key length
- * @v cipher Underlying cipher algorithm
- * @v cbc_ctx CBC context
- * @ret rc Return status code
- */
- static inline int cbc_setkey ( void *ctx, const void *key, size_t keylen,
- struct cipher_algorithm *cipher,
- void *cbc_ctx __unused ) {
-
- return cipher_setkey ( cipher, ctx, key, keylen );
- }
-
- /**
- * Set initialisation vector
- *
- * @v ctx Context
- * @v iv Initialisation vector
- * @v cipher Underlying cipher algorithm
- * @v cbc_ctx CBC context
- */
- static inline void cbc_setiv ( void *ctx __unused, const void *iv,
- struct cipher_algorithm *cipher,
- void *cbc_ctx ) {
- memcpy ( cbc_ctx, iv, cipher->blocksize );
- }
-
- extern void cbc_encrypt ( void *ctx, const void *src, void *dst,
- size_t len, struct cipher_algorithm *cipher,
- void *cbc_ctx );
- extern void cbc_decrypt ( void *ctx, const void *src, void *dst,
- size_t len, struct cipher_algorithm *cipher,
- void *cbc_ctx );
-
- #endif /* _GPXE_CBC_H */
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