Embodiments of the invention are directed to systems, methods, and computer program products for generation of dynamic authentication tokens for use in system-to-system transaction authorization and user identity verification. The system utilizes user historical data to generate unique authentication tokens which are customized to a particular user. Furthermore, the system rotates not only the encryption algorithms used, but also the datasets being encrypted in order to provide a high level of security such that even if a user's historical data was compromised, it would be highly unlikely that an attacker would be able to recreate the authentication token stemming from said historical data at any given point in time. The system eliminates the need for user-provided authentication credentials and provides a more secure and more efficient method of authenticating data exchange between multiple systems or applications.