Questions and Answers
What type of algorithm is used by mobile authentication apps?
Time-based one-time password (TOTP) algorithm
What is a major advantage of mobile authentication apps over authentication codes?
They can be used with multiple accounts
What is a type of physical characteristic used in biometric authentication?
Fingerprint
What is a potential disadvantage of using mobile authentication apps?
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What is the primary goal of biometric authentication?
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Study Notes
Mobile Authentication Apps
- Implement a one-time password generator using the "Time-based one-time password (TOTP)" algorithm
- Does not require a network connection for operation
- Can be used with multiple accounts simultaneously
- More secure than authentication code due to dynamic password generation
- Disadvantages:
- Susceptible to phone loss or theft
- Vulnerable to malware installation by attackers
- Risk of users revealing secret codes to attackers
Biometric Authentication
- Authenticates individuals based on unique physical characteristics
- Based on pattern recognition technology
- Technically complex and expensive compared to passwords and tokens
- Physical characteristics used for biometric authentication:
- Facial characteristics
- Fingerprints
- Hand geometry
- Retinal pattern
- Iris
- Signature
- Voice
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