36 lines
1.1 KiB
C#
36 lines
1.1 KiB
C#
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using System.Collections.Generic;
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namespace Obfuz.EncryptionVM.Instructions
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{
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public class AddInstruction : EncryptionInstructionBase
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{
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private readonly int _addValue;
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private readonly int _opKeyIndex;
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public AddInstruction(int addValue, int opKeyIndex)
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{
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_addValue = addValue;
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_opKeyIndex = opKeyIndex;
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}
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public override int Encrypt(int value, int[] secretKey, int salt)
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{
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return ((value + secretKey[_opKeyIndex]) ^ salt) + _addValue;
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}
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public override int Decrypt(int value, int[] secretKey, int salt)
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{
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return ((value - _addValue) ^ salt) - secretKey[_opKeyIndex];
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}
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public override void GenerateEncryptCode(List<string> lines, string indent)
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{
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lines.Add(indent + $"value = ((value + _secretKey[{_opKeyIndex}]) ^ salt) + {_addValue};");
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}
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public override void GenerateDecryptCode(List<string> lines, string indent)
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{
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lines.Add(indent + $"value = ((value - {_addValue}) ^ salt) - _secretKey[{_opKeyIndex}];");
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}
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}
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}
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