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![Rémi Verschelde](/assets/img/avatar_default.png)
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
152 lines
5.7 KiB
C++
152 lines
5.7 KiB
C++
/**************************************************************************/
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/* crypto_mbedtls.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef CRYPTO_MBEDTLS_H
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#define CRYPTO_MBEDTLS_H
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#include "core/crypto/crypto.h"
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#include "core/io/resource.h"
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#include <mbedtls/ctr_drbg.h>
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#include <mbedtls/entropy.h>
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#include <mbedtls/ssl.h>
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class CryptoMbedTLS;
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class TLSContextMbedTLS;
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class CryptoKeyMbedTLS : public CryptoKey {
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private:
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mbedtls_pk_context pkey;
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int locks = 0;
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bool public_only = true;
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public:
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static CryptoKey *create();
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static void make_default() { CryptoKey::_create = create; }
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static void finalize() { CryptoKey::_create = nullptr; }
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virtual Error load(String p_path, bool p_public_only);
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virtual Error save(String p_path, bool p_public_only);
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virtual String save_to_string(bool p_public_only);
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virtual Error load_from_string(String p_string_key, bool p_public_only);
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virtual bool is_public_only() const { return public_only; };
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CryptoKeyMbedTLS() {
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mbedtls_pk_init(&pkey);
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locks = 0;
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}
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~CryptoKeyMbedTLS() {
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mbedtls_pk_free(&pkey);
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}
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_FORCE_INLINE_ void lock() { locks++; }
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_FORCE_INLINE_ void unlock() { locks--; }
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friend class CryptoMbedTLS;
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friend class TLSContextMbedTLS;
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};
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class X509CertificateMbedTLS : public X509Certificate {
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private:
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mbedtls_x509_crt cert;
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int locks;
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public:
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static X509Certificate *create();
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static void make_default() { X509Certificate::_create = create; }
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static void finalize() { X509Certificate::_create = nullptr; }
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virtual Error load(String p_path);
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virtual Error load_from_memory(const uint8_t *p_buffer, int p_len);
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virtual Error save(String p_path);
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X509CertificateMbedTLS() {
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mbedtls_x509_crt_init(&cert);
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locks = 0;
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}
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~X509CertificateMbedTLS() {
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mbedtls_x509_crt_free(&cert);
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}
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_FORCE_INLINE_ void lock() { locks++; }
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_FORCE_INLINE_ void unlock() { locks--; }
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friend class CryptoMbedTLS;
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friend class TLSContextMbedTLS;
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};
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class HMACContextMbedTLS : public HMACContext {
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private:
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HashingContext::HashType hash_type;
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int hash_len = 0;
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void *ctx = nullptr;
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public:
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static HMACContext *create();
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static void make_default() { HMACContext::_create = create; }
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static void finalize() { HMACContext::_create = nullptr; }
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static bool is_md_type_allowed(mbedtls_md_type_t p_md_type);
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virtual Error start(HashingContext::HashType p_hash_type, PackedByteArray p_key);
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virtual Error update(PackedByteArray p_data);
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virtual PackedByteArray finish();
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HMACContextMbedTLS() {}
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~HMACContextMbedTLS();
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};
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class CryptoMbedTLS : public Crypto {
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private:
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mbedtls_entropy_context entropy;
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mbedtls_ctr_drbg_context ctr_drbg;
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static X509CertificateMbedTLS *default_certs;
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public:
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static Crypto *create();
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static void initialize_crypto();
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static void finalize_crypto();
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static X509CertificateMbedTLS *get_default_certificates();
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static void load_default_certificates(String p_path);
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static mbedtls_md_type_t md_type_from_hashtype(HashingContext::HashType p_hash_type, int &r_size);
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virtual PackedByteArray generate_random_bytes(int p_bytes);
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virtual Ref<CryptoKey> generate_rsa(int p_bytes);
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virtual Ref<X509Certificate> generate_self_signed_certificate(Ref<CryptoKey> p_key, String p_issuer_name, String p_not_before, String p_not_after);
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virtual Vector<uint8_t> sign(HashingContext::HashType p_hash_type, Vector<uint8_t> p_hash, Ref<CryptoKey> p_key);
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virtual bool verify(HashingContext::HashType p_hash_type, Vector<uint8_t> p_hash, Vector<uint8_t> p_signature, Ref<CryptoKey> p_key);
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virtual Vector<uint8_t> encrypt(Ref<CryptoKey> p_key, Vector<uint8_t> p_plaintext);
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virtual Vector<uint8_t> decrypt(Ref<CryptoKey> p_key, Vector<uint8_t> p_ciphertext);
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CryptoMbedTLS();
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~CryptoMbedTLS();
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};
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#endif // CRYPTO_MBEDTLS_H
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