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Which session key is used for electronic funds transfer and point of sale applications?

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Which session key is used for electronic funds transfer and point of sale applications?

(a) Data-encrypting key

(b) File-encrypting key

(c) PIN-encrypting key

(d) None of the mentioned

I have been asked this question in an interview for internship.

This intriguing question originated from Symmetric Key Distribution in division Message Authentication Codes, Whirlpool Algorithm and Key Management and Distribution of Cryptograph & Network Security

1 Answer

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Right option is (c) PIN-encrypting key

For explanation: PIN-encrypting key is the session key which is used for electronic funds transfer and point of sale applications.

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