Which item is a supported one-time secure token for IBE authentication?

Question

Options

• AFortiToken
• BCertificate
• CSMS
• DSecurity question

• B
  9% (2)
• C
  4% (1)
• D
  87% (20)

Explanation

Security question is the supported one-time secure token method for IBE (Identity-Based Encryption) authentication, designed to allow external recipients to verify their identity when accessing IBE-encrypted content without requiring pre-installed software or infrastructure.

Why the distractors are wrong:

• A. FortiToken is a time-based OTP token used for two-factor authentication in VPN and admin access scenarios, not specifically supported as an IBE one-time token mechanism.
• B. Certificate is a PKI-based credential that requires pre-deployment and infrastructure - it is not a lightweight "one-time" token and is not the IBE-specific option here.
• C. SMS may seem like a natural OTP delivery method, but it is not listed as the supported one-time secure token for IBE authentication in this context.

Memory tip: Think of IBE as securing email for people who have nothing pre-installed - no tokens, no certs, no phone OTP setup. A security question is the simplest challenge that an unknown external user can answer with just their knowledge, making "D for Dead simple" the right fit for IBE's one-time token.

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