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Diffstat (limited to 'core/crypto/crypto_core.cpp')
| -rw-r--r-- | core/crypto/crypto_core.cpp | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/core/crypto/crypto_core.cpp b/core/crypto/crypto_core.cpp new file mode 100644 index 0000000000..51c2e3c9e5 --- /dev/null +++ b/core/crypto/crypto_core.cpp @@ -0,0 +1,183 @@ +/*************************************************************************/ +/* crypto_core.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#include "crypto_core.h" + +#include <mbedtls/aes.h> +#include <mbedtls/base64.h> +#include <mbedtls/md5.h> +#include <mbedtls/sha1.h> +#include <mbedtls/sha256.h> + +// MD5 +CryptoCore::MD5Context::MD5Context() { + ctx = memalloc(sizeof(mbedtls_md5_context)); + mbedtls_md5_init((mbedtls_md5_context *)ctx); +} + +CryptoCore::MD5Context::~MD5Context() { + mbedtls_md5_free((mbedtls_md5_context *)ctx); + memfree((mbedtls_md5_context *)ctx); +} + +Error CryptoCore::MD5Context::start() { + int ret = mbedtls_md5_starts_ret((mbedtls_md5_context *)ctx); + return ret ? FAILED : OK; +} + +Error CryptoCore::MD5Context::update(const uint8_t *p_src, size_t p_len) { + int ret = mbedtls_md5_update_ret((mbedtls_md5_context *)ctx, p_src, p_len); + return ret ? FAILED : OK; +} + +Error CryptoCore::MD5Context::finish(unsigned char r_hash[16]) { + int ret = mbedtls_md5_finish_ret((mbedtls_md5_context *)ctx, r_hash); + return ret ? FAILED : OK; +} + +// SHA1 +CryptoCore::SHA1Context::SHA1Context() { + ctx = memalloc(sizeof(mbedtls_sha1_context)); + mbedtls_sha1_init((mbedtls_sha1_context *)ctx); +} + +CryptoCore::SHA1Context::~SHA1Context() { + mbedtls_sha1_free((mbedtls_sha1_context *)ctx); + memfree((mbedtls_sha1_context *)ctx); +} + +Error CryptoCore::SHA1Context::start() { + int ret = mbedtls_sha1_starts_ret((mbedtls_sha1_context *)ctx); + return ret ? FAILED : OK; +} + +Error CryptoCore::SHA1Context::update(const uint8_t *p_src, size_t p_len) { + int ret = mbedtls_sha1_update_ret((mbedtls_sha1_context *)ctx, p_src, p_len); + return ret ? FAILED : OK; +} + +Error CryptoCore::SHA1Context::finish(unsigned char r_hash[20]) { + int ret = mbedtls_sha1_finish_ret((mbedtls_sha1_context *)ctx, r_hash); + return ret ? FAILED : OK; +} + +// SHA256 +CryptoCore::SHA256Context::SHA256Context() { + ctx = memalloc(sizeof(mbedtls_sha256_context)); + mbedtls_sha256_init((mbedtls_sha256_context *)ctx); +} + +CryptoCore::SHA256Context::~SHA256Context() { + mbedtls_sha256_free((mbedtls_sha256_context *)ctx); + memfree((mbedtls_sha256_context *)ctx); +} + +Error CryptoCore::SHA256Context::start() { + int ret = mbedtls_sha256_starts_ret((mbedtls_sha256_context *)ctx, 0); + return ret ? FAILED : OK; +} + +Error CryptoCore::SHA256Context::update(const uint8_t *p_src, size_t p_len) { + int ret = mbedtls_sha256_update_ret((mbedtls_sha256_context *)ctx, p_src, p_len); + return ret ? FAILED : OK; +} + +Error CryptoCore::SHA256Context::finish(unsigned char r_hash[32]) { + int ret = mbedtls_sha256_finish_ret((mbedtls_sha256_context *)ctx, r_hash); + return ret ? FAILED : OK; +} + +// AES256 +CryptoCore::AESContext::AESContext() { + ctx = memalloc(sizeof(mbedtls_aes_context)); + mbedtls_aes_init((mbedtls_aes_context *)ctx); +} + +CryptoCore::AESContext::~AESContext() { + mbedtls_aes_free((mbedtls_aes_context *)ctx); + memfree((mbedtls_aes_context *)ctx); +} + +Error CryptoCore::AESContext::set_encode_key(const uint8_t *p_key, size_t p_bits) { + int ret = mbedtls_aes_setkey_enc((mbedtls_aes_context *)ctx, p_key, p_bits); + return ret ? FAILED : OK; +} + +Error CryptoCore::AESContext::set_decode_key(const uint8_t *p_key, size_t p_bits) { + int ret = mbedtls_aes_setkey_dec((mbedtls_aes_context *)ctx, p_key, p_bits); + return ret ? FAILED : OK; +} + +Error CryptoCore::AESContext::encrypt_ecb(const uint8_t p_src[16], uint8_t r_dst[16]) { + int ret = mbedtls_aes_crypt_ecb((mbedtls_aes_context *)ctx, MBEDTLS_AES_ENCRYPT, p_src, r_dst); + return ret ? FAILED : OK; +} + +Error CryptoCore::AESContext::decrypt_ecb(const uint8_t p_src[16], uint8_t r_dst[16]) { + int ret = mbedtls_aes_crypt_ecb((mbedtls_aes_context *)ctx, MBEDTLS_AES_DECRYPT, p_src, r_dst); + return ret ? FAILED : OK; +} + +// CryptoCore +String CryptoCore::b64_encode_str(const uint8_t *p_src, int p_src_len) { + int b64len = p_src_len / 3 * 4 + 4 + 1; + PoolVector<uint8_t> b64buff; + b64buff.resize(b64len); + PoolVector<uint8_t>::Write w64 = b64buff.write(); + size_t strlen = 0; + int ret = b64_encode(&w64[0], b64len, &strlen, p_src, p_src_len); + w64[strlen] = 0; + return ret ? String() : (const char *)&w64[0]; +} + +Error CryptoCore::b64_encode(uint8_t *r_dst, int p_dst_len, size_t *r_len, const uint8_t *p_src, int p_src_len) { + int ret = mbedtls_base64_encode(r_dst, p_dst_len, r_len, p_src, p_src_len); + return ret ? FAILED : OK; +} + +Error CryptoCore::b64_decode(uint8_t *r_dst, int p_dst_len, size_t *r_len, const uint8_t *p_src, int p_src_len) { + int ret = mbedtls_base64_decode(r_dst, p_dst_len, r_len, p_src, p_src_len); + return ret ? FAILED : OK; +} + +Error CryptoCore::md5(const uint8_t *p_src, int p_src_len, unsigned char r_hash[16]) { + int ret = mbedtls_md5_ret(p_src, p_src_len, r_hash); + return ret ? FAILED : OK; +} + +Error CryptoCore::sha1(const uint8_t *p_src, int p_src_len, unsigned char r_hash[20]) { + int ret = mbedtls_sha1_ret(p_src, p_src_len, r_hash); + return ret ? FAILED : OK; +} + +Error CryptoCore::sha256(const uint8_t *p_src, int p_src_len, unsigned char r_hash[32]) { + int ret = mbedtls_sha256_ret(p_src, p_src_len, r_hash, 0); + return ret ? FAILED : OK; +} |