48 lines
1.5 KiB
C#
48 lines
1.5 KiB
C#
using System;
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using System.Text;
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namespace VAR.Toolbox.Code
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{
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public static class HexUtils
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{
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public static byte[] HexStringToBytes(string input)
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{
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int[] hexValues = new int[]
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{
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F
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};
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if (input.Length % 2 == 1)
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{
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throw new Exception("Uneven number of hex digits");
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}
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byte[] bytes = new byte[input.Length / 2];
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int count = input.Length;
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for (int x = 0, i = 0; i < count; i += 2, x += 1)
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{
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bytes[x] = (byte)(
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hexValues[Char.ToUpper(input[i + 0]) - '0'] << 4 |
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hexValues[Char.ToUpper(input[i + 1]) - '0']
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);
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}
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return bytes;
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}
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public static string BytesToHexString(byte[] toEncodeAsBytes)
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{
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string HexAlphabet = "0123456789ABCDEF";
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StringBuilder sbOutput = new StringBuilder();
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int count = toEncodeAsBytes.Length;
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for (int i = 0; i < count; i++)
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{
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byte b = toEncodeAsBytes[i];
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sbOutput.Append(HexAlphabet[(b >> 4)]);
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sbOutput.Append(HexAlphabet[(b & 0xF)]);
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}
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return sbOutput.ToString();
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}
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}
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} |