Clickwrap: The familiar "I accept" button used in e-commerce to confirm an online purchase or agreement to a contract. Typically secured only by means of the secure sockets layer (SSL) technology.Digital Signature: A piece of encrypted data used to verify that a digitally encoded message originated with a specific individual and that the message was not altered after being sent.
Digital Certificate: A unique digital code, usually stored on a person's PC and protected with a password. Intended to be proof of the identity of the sender of an electronic message. Certificates are issued and managed by a certificate authority.
Digital Point-of-Sale Signature: A representation of a handwritten signature, produced by writing the signature with a stylus on an electronic input pad and storing it as an electronic file.
Public Key Infrastructure (PKI): ,A system where two numeric keys, one private and one public, are used to encrypt and decrypt electronic messages. The public key is circulated to anyone with whom the user wishes to engage in secure communications. The private key is contained in the user's digital certificate. PKI software verifies the integrity of the messages and their authors.
Source: Celent Communications
