Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2007-10-02
2007-10-02
Vu, Kim (Department: 2135)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C380S044000, C380S258000
Reexamination Certificate
active
09875095
ABSTRACT:
A method for secure transmission of information from a digital pen to a receiving device is provided. The method includes obtaining, in the digital pen, a message in the form of a plurality of position indications recorded from a position code on a substrate; sending at least one of the position indications to a database device; receiving from the database device an address of a receiving device which is associated with the at least one position indication and an encryption key relating to the receiving device, the encryption key being associated with the at least one position indication; encrypting the message using the encryption key received from the database device; and transmitting the encrypted message to the address of the receiving device.
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Anoto AB
Klimach Paula W
Vu Kim
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