Patent
Data processing device, encryption communication method, key generation method, and computer program
Nobuaki Fukasawa
- 08 Apr 2005
31
TL;DR: A data processing device comprises a storage unit adapted to store an initial value of a pair of a public key and a private key, and a communication unit adapted for executing communication with an external device with use of the initial value.
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Abstract: A data processing device comprises a storage unit adapted to store an initial value of a pair of a public key and a private key and a communication unit adapted to execute communication with an external device with use of the initial value of the pair of the public key and the private key stored in the storage unit, thereby enabling encryption communication without generating the pair of the public key and the private key.
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Citations
Patent
Method and system for generating a dynamic verification value
Jagdeep Singh Sahota,Christian Aabye +1 more
- 18 Aug 2004
TL;DR: In this article, the authors present methods and systems for dynamically generating a verification value for a transaction and for utilizing such value to verify the authenticity of the payment service application, which may be used in a contactless (wireless) environment or a non-wireless environment.
221
Patent
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Ayman Hammad,Patrick Faith +1 more
- 15 Jun 2007
TL;DR: In this paper, a method for verifying a portable consumer device was proposed, which includes receiving an authorization request message associated with a transaction conducted using a portable device and an algorithm identifier.
150
Patent
Track data encryption
Ayman Hammad
- 14 Jun 2007
TL;DR: In this paper, a method for using a secondary PAN associated with a primary PAN is described, where the secondary PAN has at least one end portion that is the same as the primary PAN, but has a middle portion of that is different than the primary one.
125
Patent
System and method for account identifier obfuscation
Simon Hurry,Christian Aabye +1 more
- 26 Jun 2008
TL;DR: In this article, a method for generating obfuscated portion using a dynamic cryptogram unique to a transaction, where the dynamic cryptograms is determined using a uniquely derived key is described.
108
Patent
Portable consumer device configured to generate dynamic authentication data
Ayman Hammad,Patrick Faith +1 more
- 19 Jun 2007
TL;DR: In this paper, a portable consumer device is configured to store dynamic authentication data in memory, and the authentication data is updated and the updated data may be written into memory using the read-write device.
73
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TL;DR: In this paper, a system and method for providing secure message services is presented, which includes a forwarding service to receive message for delivery to a recipient, checks for preferences for delivery of the message content including encryption preferences and notifies the recipient or delivers the message according to the encryption preferences.
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