Tags: .net

Did you know… that MD5 hash is a valid GUID?! 😲

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/// <summary>
/// Convert string to Guid
/// </summary>
/// <param name="value">the string value</param>
/// <returns>the Guid value</returns>
public static Guid ConvertToMd5HashGUID(string value)
{
  // convert null to empty string - null can not be hashed
  if (value == null)
  {
    value = string.Empty;
  }

  // get the byte representation
  var bytes = Encoding.Default.GetBytes(value);

  // create the md5 hash
  MD5 md5Hasher = MD5.Create();
  byte[] data = md5Hasher.ComputeHash(bytes);

  // convert the hash to a Guid
  return new Guid(data);
}