Secure network user states

Details Secure network user states Secure network user states

2005-07-19

2005-07-19

Peeso, Thomas R. (Department: 2132)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S165000, C713S166000, C713S152000, C713S152000, C713S182000, C713S151000, C713S161000

Reexamination Certificate

active

06920560

ABSTRACT:
A server and a computer are connected to a network. User data may be used to establish a state between a server and a user operating the computer. Secure network user states includes creating a first key from a received user key; encrypting user data with the cryptographic key; storing the encrypted user data in a cookie; and sending the cookie to the computer; such that subsequently, a secure state between the server and the user is established by receiving the cookie and the user key from the computer; creating a second key that matches the first key; decrypting, using the second key, encrypted user data extracted from the cookie; and establishing the secure state based on the decrypted user data. A key is created in any repeatable manner, which mathematically must include at least one insertion or deletion. Optionally, user data may be seeded to heighten security of the state.

REFERENCES:
patent: 4227253 (1980-10-01), Ehrsam et al.
patent: 4731840 (1988-03-01), Mniszewski et al.
patent: 4736422 (1988-04-01), Mason
patent: 4771458 (1988-09-01), Citta et al.

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