Hello Wise Monks,

I once again come in search of your infinite knowledge. I am completely lost. This is a little beyond my expertise in encryption. I am trying to rewrite a small c# encryption function in perl and am having a heck of a time with it.

Here is the c# code that I am trying to emulate: 
        private static string Encrypt(string s)
        {
            HashAlgorithm provider = null;

            try {
                provider = new SHA1Managed();
                byte[] bytes = Encoding.Unicode.GetBytes(s);

                provider.Initialize();
                bytes = provider.ComputeHash(bytes);
                return Convert.ToBase64String(bytes);
            }
            finally {
                if (provider != null)
                    provider.Clear();
            }
        }

[download]
I've tried hundreds of variations on the below code trying to get the same results: 
use strict;
use MIME::Base64;
use Digest::SHA1  qw/sha1 sha1_hex sha1_base64/;
use Encode qw/encode decode/;

print 'Hello World' . "\n";

print encode_base64(sha1('1234')) . "\n";

print decode("UCS-2BE", decode_base64('E59pyTwEJJao6VjsWTBmLGzMr78='))
+;

[download]
To say the least I'm a bit lost and would love a point in the right direction or a friendly bit of advice.
Here is a trace of the data as it comes through the c# code: 
        // s = '1234'
        private static string Encrypt(string s)
        {
            HashAlgorithm provider = null;

            try {
                provider = new SHA1Managed();
                byte[] bytes = Encoding.Unicode.GetBytes(s);
                // bytes = 49, 0, 50, 0, 51, 0, 52, 0

                provider.Initialize();
                bytes = provider.ComputeHash(bytes);
               // bytes = 19, 519, 105, 201, 60, 4, 36, 150, 168, 233,
+ 88, 236, 89, 48, 102, 44, 108, 204, 175, 191
                return Convert.ToBase64String(bytes);
                // bytes = E59pyTwEJJao6VjsWTBmLGzMr78=
            }
            finally {
                if (provider != null)
                    provider.Clear();
            }
        }

[download]

Thank you in advance and if I forgot to add any crucial piece of knowledge that would be helpful, let me know and I'll happily provide anything that would help this bit of a puzzle I have. Really am stumped this time...

UPDATE: Realized in my hacking at this to try and make it work my example didn't make a lot of sense. Updated to remove sillyness.

In reply to Rewriting a C# Encryption Function by bkiahg

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