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obfuz
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调整加密float和double的方式

backup
walon 2025-05-14 17:26:21 +08:00
parent 6b487f58c0
commit b635d6d867
1 changed files with 4 additions and 26 deletions
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30
Runtime/EncryptorBase.cs
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@ -40,28 +40,6 @@ namespace Obfuz
return ((long)decryptedHigh << 32) | (uint)decryptedLow; return ((long)decryptedHigh << 32) | (uint)decryptedLow;
} }
private int? _floatSalt;
private int GetFloatSalt()
{
if (_floatSalt == null)
{
_floatSalt = Encrypt(0xABCD, 0x12345678, 0);
}
return _floatSalt.Value;
}
private long? _doubleSalt;
private long GetDoubleSalt()
{
if (_doubleSalt == null)
{
_doubleSalt = Encrypt(0xAABBCCDDL, 0x12345678, 0);
}
return _doubleSalt.Value;
}
public virtual float Encrypt(float value, int opts, int salt) public virtual float Encrypt(float value, int opts, int salt)
{ {
if (float.IsNaN(value) || float.IsInfinity(value)) if (float.IsNaN(value) || float.IsInfinity(value))
@ -69,7 +47,7 @@ namespace Obfuz
return value; return value;
} }
ref int intValue = ref UnsafeUtility.As<float, int>(ref value); ref int intValue = ref UnsafeUtility.As<float, int>(ref value);
int xorValue = ((1 << 23) - 1) & (opts ^ salt ^ GetFloatSalt()); int xorValue = ((1 << 23) - 1) & Decrypt(0xABCD, opts, salt);
intValue ^= xorValue; intValue ^= xorValue;
return value; return value;
} }
@ -81,7 +59,7 @@ namespace Obfuz
return value; return value;
} }
ref int intValue = ref UnsafeUtility.As<float, int>(ref value); ref int intValue = ref UnsafeUtility.As<float, int>(ref value);
int xorValue = ((1 << 23) - 1) & (opts ^ salt ^ GetFloatSalt()); int xorValue = ((1 << 23) - 1) & Decrypt(0xABCD, opts, salt);
intValue ^= xorValue; intValue ^= xorValue;
return value; return value;
} }
@ -93,7 +71,7 @@ namespace Obfuz
return value; return value;
} }
ref long longValue = ref UnsafeUtility.As<double, long>(ref value); ref long longValue = ref UnsafeUtility.As<double, long>(ref value);
long xorValue = ((1L << 52) - 1) & ((((long)opts << 32) | (uint)salt) ^ GetDoubleSalt()); long xorValue = ((1L << 52) - 1) & Decrypt(0xAABBCCDDL, opts, salt);
longValue ^= xorValue; longValue ^= xorValue;
return value; return value;
} }
@ -105,7 +83,7 @@ namespace Obfuz
return value; return value;
} }
ref long longValue = ref UnsafeUtility.As<double, long>(ref value); ref long longValue = ref UnsafeUtility.As<double, long>(ref value);
long xorValue = ((1L << 52) - 1) & ((((long)opts << 32) | (uint)salt) ^ GetDoubleSalt()); long xorValue = ((1L << 52) - 1) & Decrypt(0xAABBCCDDL, opts, salt);
longValue ^= xorValue; longValue ^= xorValue;
return value; return value;
} }