Hi Mat, David, I am currently working on adding the KDF support to the DH key service. The plan is to make it consistent with SP800-56A section 5.8.1 and yet open enough to allow other use cases with other KDFs. Is there already a test tool that already exercises the DH logic that I can use to test my extension? Thanks. Ciao Stephan -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html