Reverse Byte Orders

Question

For Example :

I am trying to do this: 0x64CEED7E becomes 7EEDCE64.

This is my code.

for (int integerTemp = 0; integerTemp < 4; integerTemp++)
{
   generatedKey[integerTemp] = Convert.ToByte(((uint)(integerkey & (0x000000FF   << (integerTemp * 8)))) >> (integerTemp * 8));
}

What is the best way of doing this ?

Possible duplicate of [Bitwise endian swap for various types](http://stackoverflow.com/questions/19560436/bitwise-endian-swap-for-various-types) — harold, May 20 '16 at 20:16
You can use this : static uint Convert(uint input) { return ((input & 0x000000ffU) << 24) + ((input & 0x0000ff00U) << 8) + ((input & 0x00ff0000U) >> 8) + ((input & 0xff000000U) >> 24); } — jdweng, May 20 '16 at 21:52

score 1 · Answer 1 · answered May 20 '16 at 20:16

1

You can also use the BitConverter class:

int key = 0x64CEED7E;
var bytes = BitConverter.GetBytes(key);
Array.Reverse(bytes);
key = BitConverter.ToInt32(bytes, 0);

Console.WriteLine(key.ToString("x"));

answered May 20 '16 at 20:16

kagelos

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Reverse Byte Orders

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