1 /*************************************************************************/ 2 /* crypto_core.h */ 3 /*************************************************************************/ 4 /* This file is part of: */ 5 /* GODOT ENGINE */ 6 /* https://godotengine.org */ 7 /*************************************************************************/ 8 /* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ 9 /* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ 10 /* */ 11 /* Permission is hereby granted, free of charge, to any person obtaining */ 12 /* a copy of this software and associated documentation files (the */ 13 /* "Software"), to deal in the Software without restriction, including */ 14 /* without limitation the rights to use, copy, modify, merge, publish, */ 15 /* distribute, sublicense, and/or sell copies of the Software, and to */ 16 /* permit persons to whom the Software is furnished to do so, subject to */ 17 /* the following conditions: */ 18 /* */ 19 /* The above copyright notice and this permission notice shall be */ 20 /* included in all copies or substantial portions of the Software. */ 21 /* */ 22 /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ 23 /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ 24 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ 25 /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ 26 /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ 27 /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ 28 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 29 /*************************************************************************/ 30 31 #ifndef CRYPTO_CORE_H 32 #define CRYPTO_CORE_H 33 34 #include "core/reference.h" 35 36 class CryptoCore { 37 38 public: 39 class MD5Context { 40 41 private: 42 void *ctx; // To include, or not to include... 43 44 public: 45 MD5Context(); 46 ~MD5Context(); 47 48 Error start(); 49 Error update(const uint8_t *p_src, size_t p_len); 50 Error finish(unsigned char r_hash[16]); 51 }; 52 53 class SHA1Context { 54 55 private: 56 void *ctx; // To include, or not to include... 57 58 public: 59 SHA1Context(); 60 ~SHA1Context(); 61 62 Error start(); 63 Error update(const uint8_t *p_src, size_t p_len); 64 Error finish(unsigned char r_hash[20]); 65 }; 66 67 class SHA256Context { 68 69 private: 70 void *ctx; // To include, or not to include... 71 72 public: 73 SHA256Context(); 74 ~SHA256Context(); 75 76 Error start(); 77 Error update(const uint8_t *p_src, size_t p_len); 78 Error finish(unsigned char r_hash[32]); 79 }; 80 81 class AESContext { 82 83 private: 84 void *ctx; // To include, or not to include... 85 86 public: 87 AESContext(); 88 ~AESContext(); 89 90 Error set_encode_key(const uint8_t *p_key, size_t p_bits); 91 Error set_decode_key(const uint8_t *p_key, size_t p_bits); 92 Error encrypt_ecb(const uint8_t p_src[16], uint8_t r_dst[16]); 93 Error decrypt_ecb(const uint8_t p_src[16], uint8_t r_dst[16]); 94 }; 95 96 static String b64_encode_str(const uint8_t *p_src, int p_src_len); 97 static Error b64_encode(uint8_t *r_dst, int p_dst_len, size_t *r_len, const uint8_t *p_src, int p_src_len); 98 static Error b64_decode(uint8_t *r_dst, int p_dst_len, size_t *r_len, const uint8_t *p_src, int p_src_len); 99 100 static Error md5(const uint8_t *p_src, int p_src_len, unsigned char r_hash[16]); 101 static Error sha1(const uint8_t *p_src, int p_src_len, unsigned char r_hash[20]); 102 static Error sha256(const uint8_t *p_src, int p_src_len, unsigned char r_hash[32]); 103 }; 104 #endif // CRYPTO_CORE_H 105