Hi, On Jun 27, 2013, at 17:49, "Dearlove, Christopher (UK)" <Chris.Dearlove@xxxxxxxxxxxxxx> wrote: > RFC 6234 contains, embedded in it, code to implement various functions, including SHA-2. > > Extracting that code from the RFC is not a clean process. https://tools.ietf.org/tools/rfcstrip/ can take the headers/footers out. Extracting the code from its output should be relatively easy. Lars