public static string Git_Blob_Sha1_Hash(byte[] buf)
{
// Encoding.ASCII is 7bit encoding but we want 8bit, so we need to use "iso-8859-1"
var enc = Encoding.GetEncoding("iso-8859-1");
var head = String.Format("blob {0}\0{1}", buf.Length, enc.GetString(buf));
/*
* StringBuilder dat = new StringBuilder();
* dat.Append(head);
* dat.Append(Encoding.ASCII.GetString(buf));
* //PLog.Info("HEAD: size({0}) content: '{1}'", dat.Length, dat.ToString());
* byte[] blob_buf = Encoding.ASCII.GetBytes(dat.ToString());
*/
var sha = SHA1.Create();
var hash = sha.ComputeHash(enc.GetBytes(head));
var sb = new StringBuilder();
foreach (var HashByte in hash)
{
sb.Append(HashByte.ToString("x2"));
}
const string hash_foobar = "323fae03f4606ea9991df8befbb2fca795e648fa"; // Correct GIT hash for a file containing only "foobar\n"
var match = (String.CompareOrdinal(sb.ToString(), hash_foobar) == 0);
//PLog.Info("[SHA1 HASH TEST] Match<{0}> Hash: {1} HEAD: '{2}'", (match?"TRUE":"FALSE"), sb.ToString(), head);
return(sb.ToString());
}
public static string MD5HashString(string Str)
{
var HashBytes = MD5.Create().ComputeHash(Encoding.UTF8.GetBytes(Str));
StringBuilder HashString = new StringBuilder();
foreach (var HashByte in HashBytes)
{
HashString.Append(HashByte.ToString("x2"));
}
return(HashString.ToString());
}
public static string SHA(string format, params object[] args)
{
var data = String.Format(format, args);
var sha1 = SHA1.Create();
var hash = sha1.ComputeHash(Encoding.ASCII.GetBytes(data));
var sb = new StringBuilder();
foreach (var HashByte in hash)
{
sb.Append(HashByte.ToString("x2"));
}
return(sb.ToString());
}
