Patent ID: 11876889
Assignee: FISKE SOFTWARE LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A system of encrypting information, comprising:
providing, by a system, information and a first key generator. the system including at least one machine, having at least one processor and at least one memory;
deriving a first key from the first key generator by applying a one-way hash function to both a first part and a second part of the first key generator,
wherein the size of the first key generator is at least 64 bits greater than the size of the first key;
encrypting, by the system, one or more blocks of the information based on the first key;
computing a second key generator by applying a one-way function to only the second part of the first key generator resulting in a second part of the second key generator, wherein said computing the second key generator keeps a first part of the second key generator the same as the first part of the first key generator;
deriving a second key from the second key generator by applying a one-way hash function to both the first part and the second part of the second key generator, wherein the size of the second key generator is at least 64 bits greater than the size of the second key;
encrypting one or more additional blocks of the information based on the second key, and transmitting the encrypted blocks of information to a second machine.