CERTIFIED-IN-CYBERSECURITY · Question #279
CERTIFIED-IN-CYBERSECURITY Question #279: Real Exam Question with Answer & Explanation
The correct answer is D: Salt. Salt is a random value added to a password before it is hashed. It is used to prevent attacks such as rainbow tables, which can be used to crack passwords by precomputing hash values for common passwords. By adding a unique salt to each password, even if two users have the same p
Question
What is the term for the random value added to a password to prevent rainbow table attacks? ()
Options
- AExtender
- BHash
- CMD5
- DSalt
Explanation
Salt is a random value added to a password before it is hashed. It is used to prevent attacks such as rainbow tables, which can be used to crack passwords by precomputing hash values for common passwords. By adding a unique salt to each password, even if two users have the same password, their hashed passwords will be different. This strategy makes it much more difficult for an attacker to crack the passwords using a precomputed table (see ISC2 Study Guide, Chapter 5, Module 3). Hashing is a one-way process that transforms plaintext into a fixed-length string of characters, making it impossible to reverse the process to obtain the original plaintext. MD5 is one type of hashing algorithm, though it is considered weak due to vulnerability to collision attacks. An 'Extender' is not a term associated with password protection in this context.
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