SYSTEM, METHOD AND COMPUTER PRODUCT FOR SENDING ENCRYPTED MESSAGES TO RECIPIENTS WHERE THE SENDER DOES NOT POSSESS THE CREDENTIALS OF THE RECIPIENT

摘要

A system for encrypting and decrypting messages using a browser in either a web or wireless device or secure message client software for transmission to or from a web server on the Internet connected to an email server or message server for the situation where the sender does not possess the credentials a nd public key of the recipients. The encryption and decryption is conducted usi ng a standard web browser on a personal computer or a mini browser on a wireles s device, or message client software on either a personal computer or wireless devices such that messages transmitted to the web or wireless browser or message client software can be completed and encrypted and signed by the use r such that encrypted and signed data does not require credentials and public key of the recipients. A method for delivering and using private keys to ensure that such keys are destroyed after use is also provided. A method of transmitting encrypted messages to a web or wireless browser or message clie nt and decrypting and verifying such messages by recipients who do not possess or who are not enrolled in a PKI and do not have private keys. A method for authenticating the sender/user of the browser, and a method for accessing or generating public and private keys for encrypting and decrypting messages fo r recipients who are not enrolled in a public key infrastructure.