Visual Basic 6 (VB6)

hi

im trying hard to generate signature to access AWSECommerceService from my VB6 ,since i have the access key and secret key can generate same from .Net 4.0 environment using the code snippet below

using System.Security.Cryptography;

string stringToSign = builder.ToString();
byte[] toSign = Encoding.UTF8.GetBytes(stringToSign);
// Compute the signature and convert to Base64.
byte[] sigBytes = signer.ComputeHash(toSign);
string signature = Convert.ToBase64String(sigBytes);

so i was wondering if i could have implement this method in my vb6 and please advice me ASAP...