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If userA wants to send a secure message to userB using an asymmetric cryptographic algorithm, which key does userB use to decrypt the message?

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  1. 18 February, 11:47
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    userB will use his/her private key.

    Explanation:

    The steps involved in using asymmetric cryptographic algorithm are as follow:

    1. Each user generates a pair of keys to be used for the encryption and decryption of messages.

    2. Each user places one of the two keys in a public register or other accessible file. This is the public key. The companion key is kept private.

    3. If UserA wishes to send a confidential message to UserB, UserA encrypts the message using UserB's public key.

    4. When UserB receives the message, she decrypts it using her private key.
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