Data processing: financial – business practice – management – or co – Business processing using cryptography – Secure transaction
Reexamination Certificate
2006-02-07
2006-02-07
Backer, Firmin (Department: 3621)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Secure transaction
C705S050000, C705S064000, C705S052000, C713S167000, C355S052000
Reexamination Certificate
active
06996547
ABSTRACT:
A method for purchasing items over a non-secure communication channel uses a secure communication device. The secure communication device includes a host processor, a secure memory that includes a laser-scribed encryption key, and a non-secure memory for storing encrypted data. A user's sensitive data is encrypted within the secure memory using the laser-scribed encryption key and stored as encrypted data in the non-secure memory. An encrypted credit card number and an encrypted secret key is retrieved from the non-secure memory, the encrypted credit card and secret key are decrypted with the laser-scribed encryption key, the credit card number is encrypted with a session key, and the encrypted credit card number is transferred over the network to a destination such as an internet vendor.
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Hardy Douglas A.
Tkacik Thomas E.
Tugenberg Steven R.
Backer Firmin
Chapa Lawrence J.
Gorrie Gregory J.
Motorola Inc.
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