220-1002 · Question #253
A user receives an email on a company smartphone. When trying to open the email, the user gets a message stating the email is encrypted, and the user cannot open it. The user forwards the email to a…
The correct answer is A. keys. Encrypted email uses asymmetric (public key) cryptography. Each party has a public/private key pair. The sender encrypts the message using the recipient's public key, and only the recipient's private key can decrypt it. If the user cannot open the message, they likely do not…
Question
A user receives an email on a company smartphone. When trying to open the email, the user gets a message stating the email is encrypted, and the user cannot open it. The user forwards the email to a personal email account and receives the same message. The user calls the IT department to ask for help. To decrypt the message, the technician tells the user to contact the sender of the message to be able to exchange:
Options
- Akeys
- Bpasswords
- Croot CA
- Dtokens
How the community answered
(41 responses)- A95% (39)
- B2% (1)
- C2% (1)
Explanation
Encrypted email uses asymmetric (public key) cryptography. Each party has a public/private key pair. The sender encrypts the message using the recipient's public key, and only the recipient's private key can decrypt it. If the user cannot open the message, they likely do not have the sender's public key configured, or the sender does not have the user's public key to encrypt for them properly. The fix is to exchange public keys between sender and recipient. Passwords (B) are symmetric and are not used in this PKI-based email encryption model. Root CA (C) is the certificate authority that signs keys, not something exchanged between users. Tokens (D) are used for authentication, not email decryption.
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