diff options
Diffstat (limited to 'core/crypto/crypto.h')
| -rw-r--r-- | core/crypto/crypto.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/core/crypto/crypto.h b/core/crypto/crypto.h index 8325f043bf..30d2129e3d 100644 --- a/core/crypto/crypto.h +++ b/core/crypto/crypto.h @@ -5,8 +5,8 @@ /* GODOT ENGINE */ /* https://godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 */ @@ -67,6 +67,23 @@ public: virtual Error save(String p_path) = 0; }; +class HMACContext : public Reference { + GDCLASS(HMACContext, Reference); + +protected: + static void _bind_methods(); + static HMACContext *(*_create)(); + +public: + static HMACContext *create(); + + virtual Error start(HashingContext::HashType p_hash_type, PackedByteArray p_key) = 0; + virtual Error update(PackedByteArray p_data) = 0; + virtual PackedByteArray finish() = 0; + + HMACContext() {} +}; + class Crypto : public Reference { GDCLASS(Crypto, Reference); @@ -88,6 +105,12 @@ public: virtual Vector<uint8_t> encrypt(Ref<CryptoKey> p_key, Vector<uint8_t> p_plaintext) = 0; virtual Vector<uint8_t> decrypt(Ref<CryptoKey> p_key, Vector<uint8_t> p_ciphertext) = 0; + PackedByteArray hmac_digest(HashingContext::HashType p_hash_type, PackedByteArray p_key, PackedByteArray p_msg); + + // Compares two PackedByteArrays for equality without leaking timing information in order to prevent timing attacks. + // @see: https://paragonie.com/blog/2015/11/preventing-timing-attacks-on-string-comparison-with-double-hmac-strategy + bool constant_time_compare(PackedByteArray p_trusted, PackedByteArray p_received); + Crypto() {} }; |