Source: https://patents.google.com/patent/US8756673B2/en
Timestamp: 2019-08-24 20:50:02
Document Index: 504493287

Matched Legal Cases: ['Application No. 07251463', 'Application No. 07113300', 'Application No. 08251133', 'Application No. 2007', 'Application No. 2007', 'application No. 2007', 'application No. 2007']

US8756673B2 - Techniques for sharing data - Google Patents
US8756673B2
US8756673B2 US11/694,327 US69432707A US8756673B2 US 8756673 B2 US8756673 B2 US 8756673B2 US 69432707 A US69432707 A US 69432707A US 8756673 B2 US8756673 B2 US 8756673B2
US11/694,327
US20080244721A1 (en
2007-05-03 Assigned to RICOH COMPANY, LTD. reassignment RICOH COMPANY, LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SASAKI, TOMOHIKO, BARRUS, JOHN W., GRAHAM, JAMEY, KOJIMA, SHARON
2008-10-02 Publication of US20080244721A1 publication Critical patent/US20080244721A1/en
2014-06-17 Publication of US8756673B2 publication Critical patent/US8756673B2/en
generating a first physical token and a second physical token, each of the first and the second physical tokens comprising an identifier and an encryption key, wherein the identifier is associated with a location for storing encrypted data,
after generating the first and the second physical tokens, receiving, by one of one or more computer systems, information identifying data to be shared;
receiving, by the one of the one or more computer systems, information read from the first physical token, the information comprising the identifier and the encryption key;
encrypting, by the one of the one or more computer systems, the data to be shared using the encryption key read from the first physical token to generate encrypted data;
causing, by the one of the one or more computer systems, the encrypted data to be stored using the identifier;
obtaining the identifier and encryption key from the second physical token;
accessing the encrypted data using the identifier obtained from the second physical token;
decrypting the encrypted data using the encryption key obtained from the second physical token to produce decrypted data; and
enabling access to the decrypted data.
2. The method of claim 1 further comprising generating the identifier, wherein generating the identifier comprises:
determining the location for storing encrypted data; and
generating the identifier based upon the location for storing encrypted data.
3. The method of claim 1 wherein generating the first physical token and the second physical token comprises:
generating a machine-readable code encoding the identifier and the encryption key; and
associating the machine-readable code with the first physical token and the second physical token.
4. The method of claim 1 wherein at least one of the first physical token or the second physical token comprises a machine-readable code encoding the identifier and the encryption key.
5. The method of claim 1 wherein generating the first physical token and the second physical token comprises printing the first physical token and the second physical token on a single physical medium, wherein the single physical medium enables a token printed on the single physical medium to be physically separated from other tokens printed on the single physical medium.
6. A method of sharing data, the method comprising:
receiving, by one of one or more computer systems, an encryption key and an identifier, wherein the encryption key and the identifier are read from a first physical token, and the identifier is associated with a location for storing encrypted data;
receiving, by the one of the one or more computer systems, data to be shared;
encrypting, by the one of the one or more computer systems, the data using the encryption key to produce encrypted data; and
causing, by the one of the one or more computer systems, the encrypted data to be stored such that the encrypted data is accessible using the identifier;
obtaining information from a second physical token by reading machine readable information disposed on the second physical token, the second physical token comprising the identifier and the encryption key;
determining the identifier and encryption key from the information obtained from the second physical token;
accessing the encrypted data using the identifier determined from the information obtained from the second physical token;
decrypting the encrypted data using the encryption key determined from the information obtained from the second physical token to produce decrypted data; and
enabling access to the decrypted data,
wherein the first physical token and the second physical token are generated prior to receiving the data.
7. A system of sharing data, the system comprising:
a memory configured to store data to be shared; and
cause generation of a first physical token and a second physical token, each of the first physical token and the second physical token comprising an identifier and an encryption key, wherein the identifier is associated with a location for storing encrypted data;
receive information identifying the data to be shared;
receive information read from the first physical token;
encrypt the data to be shared using the encryption key read from the first physical token to generate encrypted data;
cause the encrypted data to be stored in the memory at a memory location accessible using the identifier read from the first physical token;
obtain the identifier and encryption key from the second physical token by analyzing information encoded in a machine-readable code disposed on the second physical token;
access the encrypted data using the identifier obtained from the second physical token;
decrypt the encrypted data using the encryption key obtained from the second physical token to produce decrypted data; and
enable access to the decrypted data;
wherein the first and the second physical tokens are generated prior to the processor receiving the information identifying the data to be shared.
8. The system of claim 7 wherein at least one of the first physical token or the second physical token comprises a machine-readable code encoding the identifier and the encryption key.
9. The system of claim 7 further comprising a printer configured to print the first physical token and the second physical token on a single physical medium, wherein the single physical medium enables the first physical token printed on the single physical medium to be physically separated from the second physical token printed on the single physical medium.
generating a first physical token and a second physical token, each of the first and the second physical tokens comprising machine readable information, the machine readable information including an identifier and an encryption key, wherein the identifier is associated with a location for storing encrypted data;
receiving, by one of one or more computer systems, information identifying data to be shared;
reading, by the one of the one or more computer systems, the machine readable information from the first physical token;
determining, by the one of the one or more computer systems, the identifier and the encryption key from the machine readable information read from the first physical token;
encrypting, by the one of the one or more computer systems, the data using the encryption key to generate encrypted data;
causing, by the one of the one or more computer systems, storage of the encrypted data at a location specified by the identifier;
obtaining the identifier and encryption key from the second physical token by analyzing the machine readable information from the second physical token;
wherein the first and the second physical tokens are generated prior to receiving the information identifying the data.
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US9432182B2 (en) 2016-08-30
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BARRUS, JOHN W.;SASAKI, TOMOHIKO;GRAHAM, JAMEY;AND OTHERS;REEL/FRAME:019245/0613;SIGNING DATES FROM 20070412 TO 20070420
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BARRUS, JOHN W.;SASAKI, TOMOHIKO;GRAHAM, JAMEY;AND OTHERS;SIGNING DATES FROM 20070412 TO 20070420;REEL/FRAME:019245/0613