public static string ToMD5(string str)
{
using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
{
var encoding = Encoding.ASCII;
var data = encoding.GetBytes(str);
Span <byte> hashBytes = stackalloc byte[16];
md5.TryComputeHash(data, hashBytes, out int written);
if (written != hashBytes.Length)
{
throw new OverflowException();
}
Span <char> stringBuffer = stackalloc char[32];
for (int i = 0; i < hashBytes.Length; i++)
{
hashBytes[i].TryFormat(stringBuffer.Slice(2 * i), out _, "x2");
}
return(new string(stringBuffer));
}
}