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Added cipher wrapper functions

pull/1/head
Michael Brown 2007-01-30 22:54:20 +00:00
parent b3e4418ea8
commit 811db204a6
1 changed files with 26 additions and 0 deletions
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26
src/include/gpxe/crypto.h
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@ -8,6 +8,8 @@
*/ */
#include <stdint.h> #include <stdint.h>
#include <stddef.h>
#include <errno.h>
/** A cryptographic algorithm */ /** A cryptographic algorithm */
struct crypto_algorithm { struct crypto_algorithm {
@ -83,4 +85,28 @@ static inline void digest_final ( struct crypto_algorithm *crypto,
crypto->final ( ctx, out ); crypto->final ( ctx, out );
} }
static inline int cipher_encrypt ( struct crypto_algorithm *crypto,
void *ctx, const void *src, void *dst,
size_t len ) {
if ( ( len & ( crypto->blocksize - 1 ) ) ) {
return -EINVAL;
}
crypto->encode ( ctx, src, dst, len );
return 0;
}
static inline int cipher_decrypt ( struct crypto_algorithm *crypto,
void *ctx, const void *src, void *dst,
size_t len ) {
if ( ( len & ( crypto->blocksize - 1 ) ) ) {
return -EINVAL;
}
crypto->decode ( ctx, src, dst, len );
return 0;
}
static inline int is_stream_cipher ( struct crypto_algorithm *crypto ) {
return ( crypto->blocksize == 1 );
}
#endif /* _GPXE_CRYPTO_H */ #endif /* _GPXE_CRYPTO_H */