Patent ID: 11909893
Assignee: ENTRUST CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method of securely transmitting content between a first computing system and a second computing system, the method comprising:
receiving, at a second computing system from a first computing system, a composite encrypted key, the second computing system and the first computing system using a number N of different, independent encryption algorithms using N key pairs, each key pair of the N key pairs including an encryption key and a decryption key, the encryption key of all of the N key pairs being included in a certificate, wherein the composite encrypted key includes N-1 encrypted secrets and encrypted encoded content and N is an integer greater than or equal to two;
decrypting, at the second computing system, each of the N-1 encrypted secrets with an associated one of N-1 associated encryption algorithms of the N encryption algorithms using N-1 of the N decryption keys to obtain N-1 secrets;
decrypting, at the second computing system, the encrypted encoded content with a remaining Nth encryption algorithm and Nth decryption key of the N encryption algorithms to obtain encoded content; and
performing, at the second computing system, an exclusive-or operation on the encoded content with each of the N-1 secrets to decode the content.