IEngineCrypto.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "Features/IModularFeatures.h"
#include "Containers/ArrayView.h"
 
typedef void* FRSAKeyHandle;
static constexpr FRSAKeyHandle InvalidRSAKeyHandle = nullptr;
 
struct IEngineCrypto : public IModularFeature
{
    /**
    * Get the name of this modular feature
    */
    static FORCEINLINE FName GetFeatureName()
    {
        static const FName Name(TEXT("EngineCryptoFeature"));
        return Name;
    }
 
    /**
     * Shutdown / cleanup the feature
     */
    virtual void Shutdown() = 0;
 
    /** 
    * Create a new RSA key from the given little-endian exponents and modulus
    */
    virtual FRSAKeyHandle CreateRSAKey(const TArrayView<const uint8> InPublicExponent, const TArrayView<const uint8> InPrivateExponent, const TArrayView<const uint8> InModulus) = 0;
 
    /**
    * Destroy the given RSA key
    */
    virtual void DestroyRSAKey(FRSAKeyHandle InKey) = 0;
 
    /**
    * Get the size of bytes of the given RSA key
    */
    virtual int32 GetKeySize(FRSAKeyHandle InKey) = 0;
 
    /** 
    * Get the maximum amount of data that can be encrypted using the given key, taking into account minimum padding requirements
    */
    virtual int32 GetMaxDataSize(FRSAKeyHandle InKey) = 0;
 
    /**
    * Encrypt the supplied byte data using the given public key
    */
    virtual int32 EncryptPublic(const TArrayView<const uint8> InSource, TArray<uint8>& OutDestination, FRSAKeyHandle InKey) = 0;
 
    /**
     * Encrypt the supplied byte data using the given private key
     */
    virtual int32 EncryptPrivate(const TArrayView<const uint8> InSource, TArray<uint8>& OutDestination, FRSAKeyHandle InKey) = 0;
 
    /**
     * Decrypt the supplied byte data using the given public key
     */
    virtual int32 DecryptPublic(const TArrayView<const uint8> InSource, TArray<uint8>& OutDestination, FRSAKeyHandle InKey) = 0;
 
    /**
     * Encrypt the supplied byte data using the given private key
     */
    virtual int32 DecryptPrivate(const TArrayView<const uint8> InSource, TArray<uint8>& OutDestination, FRSAKeyHandle InKey) = 0;
};