Broadcasting encrypted messages using session keys

摘要

A system and method for sending encrypted information to multiple recipients is provided. Information such as a message or data to be sent to multiple recipients is encrypted using a selected session key, thereby generating a first encrypted message. The session key is then encrypted with each of a plurality of unique secrets respectively associated with the multiple recipients to thereby generate a plurality of encrypted session keys. The encrypted message and the plurality of encrypted session keys are combined in a second encrypted message, which is transmitted to the multiple recipients. Each of the multiple recipients searches the encrypted message for an encrypted session key which was encrypted with its associated unique secret, decrypts the encrypted session key to retrieve the session key and decrypts an encrypted message using the retrieved session key.