Dynamic Identity Verification and Authentication, Dynamic Distributed Key Infrastructures, Dynamic Distributed Key Systems and Method for Identity Management, Authentication Servers, Data Security and Preventing Man-in-the-Middle Attacks, Side Channel Attacks, Botnet Attacks, and Credit Card and Financial Transaction Fraud, Mitigating Biometric False Positives and False Negatives, and Controlling Life of Accessible Data in the Cloud

摘要

A method of sending a secure encrypted communication between a first source computer and a second destination computer involves providing the source and destination computers each with an identical copy of a unique pre-distributed symmetric key and a first valid offset. The destination computer sends the source computer a random, previously unused token of variable length from the pre-distributed key beginning at the destination computer's last valid offset. The source computer generates the corresponding token from its last valid offset for the corresponding key in respect of the destination computer. If the source authenticates the destination computer, the source and destination computers update their offsets independently and a communication is sent encrypted by the pre-distributed key.