System and method for securing a device with a dynamically encrypted password
First Claim
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1. A system for securing a printer, comprising:
- a printer, having a nontransitory storage medium, configured to;
store a password encrypted with a first encryption scheme, the stored password encrypted with the first encryption scheme matching a host password encrypted with the first encryption scheme, the host password stored on a host computer;
re-encrypt the stored password with a second encryption scheme upon the passage of a predetermined interval, wherein the second encryption scheme is different than the first encryption scheme, wherein the passage of the predetermined interval is configured to coincide with a re-encryption of the host password stored on the host computer with the second encryption scheme, such that the stored password with the second encryption scheme matches the host password encrypted with the second encryption scheme;
receive a data stream from the host computer, said data stream containing the host password encrypted with the second encryption scheme;
determine whether the host password encrypted with the second encryption scheme of the received data stream matches the stored password encrypted with the second encryption scheme; and
print a document upon determining that the host password encrypted with the second encryption scheme of the received data matches the stored password encrypted with the second encryption scheme.
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Abstract
The present invention relates to a system and method of securing a printer. The system includes a printer, having a nontransitory storage medium, configured to: store a password encrypted with a first encryption scheme; re-encrypt the stored password with a second encryption scheme upon a predetermined interval/event; receive a data stream from a host computer; determine whether the received data stream contains the password encrypted with the second encryption scheme; and print a document upon determining that the data stream contains the password encrypted with the second encryption scheme.
96 Citations
8 Claims
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1. A system for securing a printer, comprising:
a printer, having a nontransitory storage medium, configured to; store a password encrypted with a first encryption scheme, the stored password encrypted with the first encryption scheme matching a host password encrypted with the first encryption scheme, the host password stored on a host computer; re-encrypt the stored password with a second encryption scheme upon the passage of a predetermined interval, wherein the second encryption scheme is different than the first encryption scheme, wherein the passage of the predetermined interval is configured to coincide with a re-encryption of the host password stored on the host computer with the second encryption scheme, such that the stored password with the second encryption scheme matches the host password encrypted with the second encryption scheme; receive a data stream from the host computer, said data stream containing the host password encrypted with the second encryption scheme; determine whether the host password encrypted with the second encryption scheme of the received data stream matches the stored password encrypted with the second encryption scheme; and print a document upon determining that the host password encrypted with the second encryption scheme of the received data matches the stored password encrypted with the second encryption scheme. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
Specification