Visual Basic MD5

For my stupid computing coursework we have to create a VB programme for a buisness.

Anyway, does anyone know of any built in encryption functions or can supply me with one to encrypt in md5 preferably?

If you are using vb.net you could use this:

Function MD5hash(plaintext as string) as string
Dim md5Hasher as New System.Security.Cryptography.MD5CryptoServiceProvider()
   
Dim hashedBytes as Byte()  
Dim encoder as New System.Text.UTF8Encoding()
Dim output as String
Dim b as byte

hashedBytes = md5Hasher.ComputeHash(encoder.GetBytes(plaintext))

For Each b in hashedBytes
output &= b
Next b

MD5hash = output
End Function