25. The computer system of claim 22 wherein said target server computer comprises means for accessing a lookup table, said lookup table for storing a decryption key associated with said source identifier data string, to obtain said decryption key associated with said source identifier data string, and means for decrypting, utilizing said decryption key, said encrypted user information received from said client computer.
25. The computer system of claim 22 wherein said target server computer comprises means for accessing a lookup table, said lookup table for storing a decryption key associated with said source identifier data string, to obtain said decryption key associated with said source identifier data string, and means for decrypting, utilizing said decryption key, said encrypted user information received from said client computer. 26. The computer system of claim 25 wherein said lookup table is stored locally on said target server computer.