In a typical authentication process, the local system verifies the user's identity using a stored hash value generated by a cross-system hash algorithm. This article shifts the research focus from traditional password encryption to the establishment of gatekeeping mechanisms for effective interactions between a system and the outside world. Here, we propose a triple-identity authentication system to achieve this goal. Specifically, this local system opens the inner structure of its hash algorithm to all user credentials, including the login name, login password, and authentication password. When a login credential is entered, the local system hashes it and then creates a unique identifier using intermediate hash elements randomly selected from the open algorithm. Importantly, this locally generated unique identifier (rather than the stored hash produced by the open algorithm) is utilized to verify the user's combined identity, which is generated by combining the entered credential with the International Mobile Equipment Identity and the International Mobile Subscriber Identity. The verification process is implemented at each interaction point: the login name field, the login password field, and the server's authentication point. Thus, within the context of this triple-identity authentication system, we establish a robust gatekeeping mechanism for system interactions, ultimately providing a level of security that is equivalent to multi-factor authentication.

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