CSAP+: Cryptography Quiz

Which stream cipher was developed in 1984 and contains multiple vulnerabilities?

• Salsa20

• AES

• RC4

• ChaCha

Which block cipher is the current U.S. federal government standard for symmetric encryption?

• RC4

• Salsa20

• AES

• 3DES

Which mode of operation is susceptible to the padding-oracle attack and should not be used?

• CBC

• ECB

• GCM

• CTR

Which block cipher is based on the Rijndael algorithm?

• AES

• 3DES

• Salsa20

• RC4

Which stream cipher is particularly well-suited to devices lacking AES hardware acceleration capabilities?

• AES

• Salsa20

• RC4

• ChaCha

Which mode of operation provides authenticated encryption with associated data?

• CTR

• GCM

• ECB

• CBC

Which block cipher should be replaced with AES according to NIST?

• Salsa20

• RC4

• AES

• 3DES

Which stream cipher is a variant of Salsa20 developed in 2008?

• AES

• Salsa20

• RC4

• ChaCha

Which mode of operation uses an initial chaining vector (ICV) for the first round of encryption?

• GCM

• OFB

• CBC

• ECB

Which block cipher provides high-levels of data protection?

• 3DES

• AES

• Salsa20

• RC4