Methods for using embedded printer description language as a security tool and printers and systems with whcih the method may be used
First Claim
1. A method for securely transmitting data between a computer and a printer, comprising:
- converting a file for printing to a printer description language format;
encrypting said file in said printer description language format;
providing said file with an identifier for the printer; and
transmitting said file to the printer.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for encrypting files that are to be transmitted across a computer network, such as s that are to be printed by a network printer. The method includes encrypting the file with a first ice and transmitting the file from the first device, across the computer network, to a second ce. The transferred, encrypted file is accompanied by a destination identifier and may also be accompanied by one or more of a source identifier and a flag. Upon receipt of the file, the second ice decrypts the file. Decryption may be conditioned upon the recognition or validation of one or both of the source identifier and the flag, as well as upon separate entry of a decryption key into the second device. Apparatus and systems for effecting the method are also disclosed.
50 Citations
29 Claims
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1. A method for securely transmitting data between a computer and a printer, comprising:
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converting a file for printing to a printer description language format;
encrypting said file in said printer description language format;
providing said file with an identifier for the printer; and
transmitting said file to the printer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for securely transmitting data between a first device and a second device in a computer network, comprising:
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encrypting a file for transmitting by the first device;
providing an identifier for said file; and
transmitting said file from the first device to the second device. - View Dependent Claims (12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29)
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17. A system for securely transmitting a file in a computer network, comprising:
- a first device including at least one processor for providing an encrypted file with an identifier for transmitting on said computer network; and
a second device including at least one processor for decrypting and outputting the file.
- a first device including at least one processor for providing an encrypted file with an identifier for transmitting on said computer network; and
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23. A printer, comprising:
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at least one processor for receiving an encrypted file for printing from a computer and for receiving at least an identifier for said printer accompanying said encrypted file, said at least one processor for executing a decryption algorithm to decrypt said encrypted file after receipt of said identifier; and
at least one printing element for printing at least files decrypted by said at least one processor.
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Specification