On this page:
md5
Version: 4.1

5 MD5 Message Digest

 (require file/md5)

(md5 in)  bytes?

  in : (or/c input-port? bytes?)

Produces a byte string containing 32 hexadecimal digits (lowercase) that is the MD5 hash of the given input stream or byte string.

Examples:

  > (md5 #"abc")

  #"900150983cd24fb0d6963f7d28e17f72"