static int
wrap_nettle_cipher_setiv(void *_ctx, const void *iv, size_t ivsize)
{
struct nettle_cipher_ctx *ctx = _ctx;
switch (ctx->algo) {
case GNUTLS_CIPHER_AES_128_GCM:
case GNUTLS_CIPHER_AES_256_GCM:
gcm_aes_set_iv(&ctx->ctx.aes_gcm,
ivsize, iv);
break;
case GNUTLS_CIPHER_CAMELLIA_128_GCM:
case GNUTLS_CIPHER_CAMELLIA_256_GCM:
_gcm_camellia_set_iv(&ctx->ctx.camellia_gcm,
ivsize, iv);
break;
case GNUTLS_CIPHER_SALSA20_256:
case GNUTLS_CIPHER_ESTREAM_SALSA20_256:
if (ivsize != SALSA20_IV_SIZE)
return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
salsa20_set_iv(&ctx->ctx.salsa20, iv);
break;
default:
if (ivsize > ctx->block_size)
return gnutls_assert_val(GNUTLS_E_INVALID_REQUEST);
memcpy(ctx->iv, iv, ivsize);
}
return 0;
}
static int
wrap_nettle_cipher_setiv (void *_ctx, const void *iv, size_t ivsize)
{
struct nettle_cipher_ctx *ctx = _ctx;
switch (ctx->algo)
{
case GNUTLS_CIPHER_AES_128_GCM:
case GNUTLS_CIPHER_AES_256_GCM:
if (ivsize != GCM_DEFAULT_NONCE_SIZE)
{
gnutls_assert ();
return GNUTLS_E_INVALID_REQUEST;
}
gcm_aes_set_iv(&ctx->ctx.aes_gcm, GCM_DEFAULT_NONCE_SIZE, iv);
break;
default:
if (ivsize > ctx->block_size)
{
gnutls_assert ();
return GNUTLS_E_INVALID_REQUEST;
}
memcpy (ctx->iv, iv, ivsize);
}
return 0;
}
static void
gcm_unified_aes128_set_iv (void *ctx, const uint8_t *iv)
{
gcm_aes_set_iv (ctx, GCM_IV_SIZE, iv);
}
