Publication

Method for securing communications between a terminal and an additional user equipment

Levente Buttyan
2000
Patents

Abstract

Method for performing electronic payments between a mobile equipment and a payment terminal over a short distance wireless interface, comprising displaying an identification (for example T; T-id) on the display (110) of said payment terminal (11), manually entering said identification on the input means (103) of said mobile equipment, using said identification in an message to the payment terminal, said message used to start establishment of an extended mutual authentication, said extended mutual authentication establishing a shared secret key for encrypting confidential payment information exchanged between the terminal and the mobile.

Official source

https://infoscience.epfl.ch/entities/publication/dd7bea6e-452a-45a7-a3bb-6b3c25838409

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Levente Buttyan
2000
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/dd7bea6e-452a-45a7-a3bb-6b3c25838409

About this result

Related concepts (32)

Shared secret

In cryptography, a shared secret is a piece of data, known only to the parties involved, in a secure communication. This usually refers to the key of a symmetric cryptosystem. The shared secret can be a password, a passphrase, a big number, or an array of randomly chosen bytes. The shared secret is either shared beforehand between the communicating parties, in which case it can also be called a pre-shared key, or it is created at the start of the communication session by using a key-agreement protocol, for instance using public-key cryptography such as Diffie–Hellman or using symmetric-key cryptography such as Kerberos.

Secure communication

Secure communication is when two entities are communicating and do not want a third party to listen in. For this to be the case, the entities need to communicate in a way that is unsusceptible to eavesdropping or interception. Secure communication includes means by which people can share information with varying degrees of certainty that third parties cannot intercept what is said.

Man-in-the-middle attack

In cryptography and computer security, a man-in-the-middle attack is a cyberattack where the attacker secretly relays and possibly alters the communications between two parties who believe that they are directly communicating with each other, as the attacker has inserted themselves between the two parties. One example of a MITM attack is active eavesdropping, in which the attacker makes independent connections with the victims and relays messages between them to make them believe they are talking directly to each other over a private connection, when in fact the entire conversation is controlled by the attacker.

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Method for securing communications between a terminal and an additional user equipment

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