Importance

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Abstract

An asymmetric encoding environment includes a plurality of secure computer systems, each configured to perform one or more encoding operations on received data using one or more encoding components inaccessible to the other secure computer systems. A first secure computer system receives sensitive data and tokenizes the sensitive data using a first token table inaccessible to a second secure computer system to produce first tokenized data. The second secure computer system receives the first tokenized data and tokenizes the sensitive data using a second token table inaccessible to the first secure computer system to produce second tokenized data. The second secure computer system can store the second tokenized data for subsequent access. The first and second secure computer systems can perform additional data protection techniques, such as encryption and data modification using initialization vectors. In such embodiments, each secure computer system uses an encryption key and/or initialization vector inaccessible to the other secure computer system.

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First Claim