Lawrence E. Hughes is a renowned expert in cryptography and PKI. He previously worked at VeriSign and co-founded and was CTO at CipherTrust (a secure email proxy appliance). He also was employed at Sixscape Communications in Singapore where he was responsible for creating much of their technology. Lawrence founded the US-based company PKIEdu Inc. (Public Key Infrastructure Education) to conduct training and consulting in the area of PKI. He created and taught the courseware at VeriSign (the first leading company in the PKI space) and presented it internationally to affiliates and large customers. He is a security author and was heavily involved in the deployment of several national certification authorities in the UK, Netherlands, and Australia.