Definitions Definitions Digital Signature -a data string which associates a message with some originating entity Digital Signature Generation Algorithm -a method for producing a digital signature Digital signature verification algorithm-a method for verifying that a digital signature is authentic i.e., was indeed created by the specified entity) Digital Signature Scheme-consists of a signature generation algorithm and an associated verification algorithm2 Definitions • Definitions – Digital Signature - a data string which associates a message with some originating entity – Digital Signature Generation Algorithm – a method for producing a digital signature – Digital signature verification algorithm - a method for verifying that a digital signature is authentic (i.e., was indeed created by the specified entity). – Digital Signature Scheme - consists of a signature generation algorithm and an associated verification algorithm