diff options
Diffstat (limited to 'src/crypto.h')
| -rw-r--r-- | src/crypto.h | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/src/crypto.h b/src/crypto.h index c52fd42..124d06d 100644 --- a/src/crypto.h +++ b/src/crypto.h @@ -27,7 +27,10 @@ #ifndef _FASTD_CRYPTO_H_ #define _FASTD_CRYPTO_H_ -#include "fastd.h" +#include "types.h" + +#include <stdlib.h> +#include <string.h> struct fastd_cipher_info { @@ -38,9 +41,9 @@ struct fastd_cipher_info { struct fastd_cipher { bool (*available)(void); - fastd_cipher_state_t* (*init)(fastd_context_t *ctx, const uint8_t *key); - bool (*crypt)(fastd_context_t *ctx, const fastd_cipher_state_t *state, fastd_block128_t *out, const fastd_block128_t *in, size_t len, const uint8_t *iv); - void (*free)(fastd_context_t *ctx, fastd_cipher_state_t *state); + fastd_cipher_state_t* (*init)(const uint8_t *key); + bool (*crypt)(const fastd_cipher_state_t *state, fastd_block128_t *out, const fastd_block128_t *in, size_t len, const uint8_t *iv); + void (*free)(fastd_cipher_state_t *state); }; @@ -51,9 +54,9 @@ struct fastd_mac_info { struct fastd_mac { bool (*available)(void); - fastd_mac_state_t* (*init)(fastd_context_t *ctx, const uint8_t *key); - bool (*hash)(fastd_context_t *ctx, const fastd_mac_state_t *state, fastd_block128_t *out, const fastd_block128_t *in, size_t n_blocks); - void (*free)(fastd_context_t *ctx, fastd_mac_state_t *state); + fastd_mac_state_t* (*init)(const uint8_t *key); + bool (*hash)(const fastd_mac_state_t *state, fastd_block128_t *out, const fastd_block128_t *in, size_t n_blocks); + void (*free)(fastd_mac_state_t *state); }; @@ -71,4 +74,23 @@ bool fastd_mac_config(const fastd_mac_t **mac_conf, const char *name, const char const fastd_mac_info_t* fastd_mac_info_get_by_name(const char *name); const fastd_mac_t* fastd_mac_get(fastd_context_t *ctx, const fastd_mac_info_t *info); + +static inline void secure_memzero(void *s, size_t n) { + memset(s, 0, n); + __asm__ volatile("" : : "m"(s)); +} + +static inline void xor(fastd_block128_t *x, fastd_block128_t a, fastd_block128_t b) { + x->qw[0] = a.qw[0] ^ b.qw[0]; + x->qw[1] = a.qw[1] ^ b.qw[1]; +} + +static inline void xor_a(fastd_block128_t *x, fastd_block128_t a) { + xor(x, *x, a); +} + +static inline bool fastd_true(void) { + return true; +} + #endif /* _FASTD_CRYPTO_H_ */ |