| US 7,609,834 B2 | ||
| Personal authenticating multi-function peripheral | ||
| Akihiro Mizutani, Tokyo (Japan); Kazuhiro Ogura, Kanagawa-ken (Japan); Shinji Makishima, Tokyo (Japan); and Toshihiro Ida, Tokyo (Japan) | ||
| Assigned to Kabushiki Kaisha Toshiba, Tokyo (Japan); and Toshiba Tec Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Aug. 02, 2005, as Appl. No. 11/194,707. | ||
| Prior Publication US 2007/0030961 A1, Feb. 08, 2007 | ||
| Int. Cl. H04K 1/00 (2006.01); H04L 9/00 (2006.01); H04L 9/30 (2006.01) | ||
| U.S. Cl. 380—30 [713/156] | 23 Claims |
| 1. A method of printing a document in a secure manner, comprising:
receiving, by a printer, print data that has been encrypted using a printer public key;
decrypting the printer-public-key-encrypted print data using only a printer secret key, to obtain decrypted print data;
determining user identification information provided in the decrypted print data;
performing print pre-processing on the decrypted print data, to thereby obtain pre-processed print data;
encrypting the pre-processed print data using a user public key to obtain user-public-key-encrypted print data, and storing
the user-public-key-encrypted print data;
receiving a user secret key; and
after receiving the user secret key, decrypting the user-public-key-encrypted print data and printing the print data.
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