Patent ID: 7480384
Filing Date: 2009-01-20
Classification: H04L

Abstract:
1. A method for a second machine to distribute a public cryptographic key (PK s ) to a first machine, said method comprising: receiving message data, by the second machine from the first machine as a result of the message data having been sent by the first machine to the second machine, wherein the message data consists of a concatenation of an identifier (ID) of the first machine, a character string (StrPK after said receiving the message data, said second machine verifying the signature using a public key associated with PK after a suspension of data exchange between the first machine and the second machine after said verifying the signature, receiving a message, by the second machine from the first machine as a result of the message having been sent by the first machine to the second machine, wherein the message consists of a concatenation of ID, a first Diffie-Hellman public key (D after said receiving the message, generating, by the second machine, a second random number (R after said generating R after said computing D after said computing S, providing, by the second machine, an argument (ARG after said providing ARG after said hashing ARG after said forming EXT