C++ (Cpp) mbedtls_cipher_check_tag Beispiele

Beispiel #1

Datei: CipherContext.cpp Projekt: soulik/luambedtls

	int CipherContext::checkTag(State & state, mbedtls_cipher_context_t * context){
		Stack * stack = state.stack;
		if (stack->is<LUA_TSTRING>(1)){
			const std::string tag = stack->toLString(1);

			stack->push<int>(mbedtls_cipher_check_tag(context, reinterpret_cast<const unsigned char*>(tag.c_str()), tag.length()));
			return 1;
		}
		return 0;
	}

Beispiel #2

Datei: crypto_mbedtls.c Projekt: benjdag/openvpn

int
cipher_ctx_final_check_tag(mbedtls_cipher_context_t *ctx, uint8_t *dst,
                           int *dst_len, uint8_t *tag, size_t tag_len)
{
#ifdef HAVE_AEAD_CIPHER_MODES
    size_t olen = 0;

    if (MBEDTLS_DECRYPT != ctx->operation)
    {
        return 0;
    }

    if (tag_len > SIZE_MAX)
    {
        return 0;
    }

    if (!mbed_ok(mbedtls_cipher_finish(ctx, dst, &olen)))
    {
        msg(D_CRYPT_ERRORS, "%s: cipher_ctx_final() failed", __func__);
        return 0;
    }

    if (olen > INT_MAX)
    {
        return 0;
    }
    *dst_len = olen;

    if (!mbed_ok(mbedtls_cipher_check_tag(ctx, (const unsigned char *) tag,
                                          tag_len)))
    {
        return 0;
    }

    return 1;
#else  /* ifdef HAVE_AEAD_CIPHER_MODES */
    ASSERT(0);
#endif /* HAVE_AEAD_CIPHER_MODES */
}