H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/14 (2006.01) H04L 12/56 (2006.01)
Patent
CA 2563709
This invention relates to a method of encrypting data packets of a data stream and decrypting plurally encrypted data of a data stream that provides an increased level of data security and can be automated using a signal sequence (a computer program product) or a data processing device. A data packet to be encrypted or a data packet to be decrypted is automatically encrypted or decrypted sequentially in at least two subsequent processing steps using different coding algorithms and different assigned coding keys. For encryption, a number, type, and sequence of different coding algorithms is first determined (S10) that is to be used in the subsequent encryption operations and respective different coding keys are assigned to the coding algorithms (S12, S13). Then the data packet to be encrypted is encrypted sequentially in at least two subsequent encryption operations (S16, S17) to obtain a plurally encrypted data packet. For decryption, an unencrypted coding characteristic assigned to the plurally encrypted data packet and specifying at least one coding algorithm and an assigned coding key is detected automatically. The coding characteristic thus allows sequential decryption in at least two subsequent decryption operations.
Berndes Thomas
Engel Christian
Gehring Andreas
Engel Solutions Ag
Engel Technologieberatung Entwicklung/verkauf von Soft-Und Hardware Kg
Moffat & Co.
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