This is a brief piece of C# code that generates a SHA1 hash. Converting a string to a byte array and back again is the only challenging part.
I therefore need two methods:
- the first takes the byte array directly and returns a byte array,
- the second converts the string to byte array and back again.
Remember to include the necessary using:
using System.Security.Cryptography;
And here is the code to create the SHA1 in C#:
public static string GetSha1(string text)
{
if (text == null)
{
return string.Empty;
}
byte[] message = System.Text.Encoding.ASCII.GetBytes(text);
byte[] hashValue = GetSha1(message);
string hashString = string.Empty;
foreach (byte x in hashValue)
{
hashString += string.Format("{0:x2}", x);
}
return hashString;
}
private static byte[] GetSha1(byte[] message)
{
SHA1Managed hashString = new SHA1Managed();
return hashString.ComputeHash(message);
}
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