.NET/C# Generate SHA1 hex string for a string encoded as UTF8
using System.Security.Cryptography; | |
using System.Text; | |
namespace Snippets | |
{ | |
public static class SHA1Util | |
{ | |
/// <summary> | |
/// Compute hash for string encoded as UTF8 | |
/// </summary> | |
/// <param name="s">String to be hashed</param> | |
/// <returns>40-character hex string</returns> | |
public static string SHA1HashStringForUTF8String(string s) | |
{ | |
byte[] bytes = Encoding.UTF8.GetBytes(s); | |
var sha1 = SHA1.Create(); | |
byte[] hashBytes = sha1.ComputeHash(bytes); | |
return HexStringFromBytes(hashBytes); | |
} | |
/// <summary> | |
/// Convert an array of bytes to a string of hex digits | |
/// </summary> | |
/// <param name="bytes">array of bytes</param> | |
/// <returns>String of hex digits</returns> | |
public static string HexStringFromBytes(byte[] bytes) | |
{ | |
var sb = new StringBuilder(); | |
foreach (byte b in bytes) | |
{ | |
var hex = b.ToString("x2"); | |
sb.Append(hex); | |
} | |
return sb.ToString(); | |
} | |
} | |
} |
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Fixed the typo. Thanks! |
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SHA1 implements IDisposable so you should use an using using (var sha1 = SHA1.Create())
{
byte[] hashBytes = sha1.ComputeHash(bytes);
return HexStringFromBytes(hashBytes);
} |
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If it's going to be called multiple times, it would be more efficient if you pull out the string builder to a |
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i want that encrypted string in 16 character |
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There's a typo: pubilc->public, but apart from that, thanks for this useful snippet!