Источник:
http://daxonline.org/1964-md5-hashing.html
==============
str signature = 'some string';System.Byte[] byteArray = System.Text.Encoding::get_UTF8().GetBytes(signature);System.IO.MemoryStream stream = new System.IO.MemoryStream(byteArray);System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5::Create();byteArray = md5.ComputeHash(stream);signature = System.Text.Encoding::get_UTF8().GetString(byteArray);
Источник:
http://daxonline.org/1964-md5-hashing.html