Security Issues in Mobile NFC Devices by Michael Roland

Author:Michael Roland
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

2. Unforgeability: Only the holder of a secret signing key can create an authentic signature.

3. Non-reusability: A signature is bound to the signed data and cannot be used for any other data. Thus, a digital signature assures the integrity of the signed data.

Therefore, properly signed NDEF data allows the receiving NFC device (and the user) to determine if an NDEF message has a certain origin and if it is free of manipulations. Based on that information a decision can be made, whether NDEF records should be allowed to trigger certain events, like opening a specific website, calling a specific telephone number or initiating a specific alternative carrier. Yet, there are several types of attacks that cannot be averted with digital signatures. Among them are the malicious modification of unlocked tags (e.g. to perform a denial-of-service attack against the tag infrastructure) and the use of valid signed tags in other than the intended places.

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