025/2026 WGU D334
2
QUIZES WITH QUESTIONS
& VERIFIED ANSWERS
Electronic Code Block (ECB)
- CORRECT ANSWER-- Weak
- Each block is processed separately
- No salt or iv
- The same ciphertext will be outputted every time the plaintext is encrypted
Cipher Block Chaining (CBC)
- CORRECT ANSWER-- Minor step up from ECB
- Uses an IV for the first block
Cipher Feedback (CFB
) - CORRECT ANSWER-- Converts block cypher into stream cypher
- Current block takes the output of XOR process
Output Feedback (OFB)
- CORRECT ANSWER-- Converts block cypher into stream cypher
- Current block takes output from the cypher stage
Counter Mode (CTR)
2
QUIZES WITH QUESTIONS
& VERIFIED ANSWERS
Electronic Code Block (ECB)
- CORRECT ANSWER-- Weak
- Each block is processed separately
- No salt or iv
- The same ciphertext will be outputted every time the plaintext is encrypted
Cipher Block Chaining (CBC)
- CORRECT ANSWER-- Minor step up from ECB
- Uses an IV for the first block
Cipher Feedback (CFB
) - CORRECT ANSWER-- Converts block cypher into stream cypher
- Current block takes the output of XOR process
Output Feedback (OFB)
- CORRECT ANSWER-- Converts block cypher into stream cypher
- Current block takes output from the cypher stage
Counter Mode (CTR)
