diff options
| -rw-r--r-- | cbc.h | 37 |
1 files changed, 35 insertions, 2 deletions
@@ -46,11 +46,44 @@ cbc_decrypt(void *ctx, void (*f)(void *ctx, unsigned length, uint8_t *dst, const uint8_t *src); +#define CBC_CTX(type, size) \ +{ type ctx; uint8_t iv[size]; } + +#define CBC_SET_IV(ctx, data) \ +memcpy((ctx)->iv, (data), sizeof((ctx)->iv)) + +#if 0 +#define CBC_ENCRYPT(self, f, length, dst, src) \ +do { if (0) (f)(&(self)->ctx, 0, NULL, NULL); \ + cbc_encrypt((void *) &(self)->ctx, \ + (void (*)(void *, unsigned, uint8_t *, const uint8_t *)) (f), \ + sizeof((self)->iv), (self)->iv, \ + (length), (dst), (src)); \ +} while (0) +#endif + +#define CBC_ENCRYPT(self, f, length, dst, src) \ +(0 ? ((f)(&(self)->ctx, 0, NULL, NULL)) \ + : cbc_encrypt((void *) &(self)->ctx, \ + (void (*)(void *, unsigned, uint8_t *, const uint8_t *)) (f), \ + sizeof((self)->iv), (self)->iv, \ + (length), (dst), (src))) + +#define CBC_DECRYPT(self, f, length, dst, src) \ +(0 ? ((f)(&(self)->ctx, 0, NULL, NULL)) \ + : cbc_decrypt((void *) &(self)->ctx, \ + (void (*)(void *, unsigned, uint8_t *, const uint8_t *)) (f), \ + sizeof((self)->iv), (self)->iv, \ + (length), (dst), (src))) + +#if 0 /* Type safer variants */ -#define CBC_ENCRYPT(ctx, f, b, iv, l, dst, src) \ +#define CBC_ENCRYPT2(ctx, f, b, iv, l, dst, src) \ (0 ? ((f)((ctx),0,NULL,NULL)) \ : cbc_encrypt((void *)(ctx), \ - ((*)(void *, unsigned, uint8_t *, const uint8_t *)) (f), \ + (void (*)(void *, unsigned, uint8_t *, const uint8_t *)) (f), \ (b), (iv), (l), (dst), (src))) +#endif + #endif /* NETTLE_CBC_H_INCLUDED */ |