| US 7,587,045 B2 | ||
| System and method for securing document transmittal | ||
| Michael Yeung, Mission Viejo, Calif. (US); Sameer Yami, Irvine, Calif. (US); and Amir Shahindoust, Laguna Niguel, Calif. (US) | ||
| Assigned to Kabushiki Kaisha Toshiba, (Japan); and Toshiba Tec Kabushiki Kaisha, (Japan) | ||
| Filed on Oct. 03, 2005, as Appl. No. 11/242,235. | ||
| Prior Publication US 2007/0076867 A1, Apr. 05, 2007 | ||
| Int. Cl. H04L 9/30 (2006.01); H04L 9/00 (2006.01); H04L 9/32 (2006.01); G06F 11/30 (2006.01) | ||
| U.S. Cl. 380—43 [380/30; 380/44; 713/171; 713/189] | 12 Claims |
| 1. A system for secure communication of electronic document data on a network comprising:
means for receiving user identification data associate with an identity of a user of document processing devices on an associated
network;
password key generator means for generating data representative of a password key from the user identification data;
means for dividing the password key into first and second shares;
means for communicating the first share to an associated storage area disposed in a trusted, commonly accessible repository;
means for receiving data representative of an electronic document;
encryption key generator means for randomly generating an encryption key;
means for encrypting the encryption key with the password key;
encryption means for encrypting the electronic document in accordance with the encryption key so as to generate an encrypted
electronic document;
means for appending the second share to the encrypted electronic document; and
means for communicating the encrypted electronic document and the appended second share to an associated document processing
device;
means for receiving the encrypted electronic document and appended second share into the document processing device;
means for isolating the second share from the encrypted electronic document via the document processing device;
means for receiving into the document processing device, the first share from the repository;
means for conjoining the first share and the second share via the document processing device to reconstruct the password key;
means for decrypting the encryption key via the document processing device in accordance with the reconstructed password key;
and
means for decrypting the electronic document via the document processing device in accordance with the decrypted encryption
key.
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