Cybersecurity Essentials Chapter 4 Review

This is a type of cipher that replaces plaintext letters with other letters to make the cipher.

• substitution

• transposition

• obfuscation

• masking

This is a type of cipher that rearranges plaintext letters to create the cipher.

• substitution

• transposition

• obfuscation

• masking

This is a type of cipher encrypts plaintext one bit at a time.

• substitution

• transposition

• stream

• block

This is a type of cipher takes a fixed length of plaintext and encrypts in into cypher text in one chunk.

• substitution

• transposition

• stream

• block

This is a encryption algorithm uses the same key for encryption and decryption.

• substitution

• transposition

• symmetric

• asymmetric

This is a encryption algorithm uses the one key for encryption and another for decryption.

• substitution

• transposition

• symmetric

• asymmetric

This is asymmetric algorithm provides an electronic key exchange method to share the secret key.

• Diffie-Hellman

• ECC (Elliptic Curve Cryptography)

• AES (Advance Encryption Standard)

• WEP (Wired Equivalent Privacy)

This 128 bit block cipher encryption algorithm is the one the US government uses to protect classified information.

• Diffie-Hellman

• ECC (Elliptic Curve Cryptography)

• AES (Advance Encryption Standard)

• WEP (Wired Equivalent Privacy)

This cryptographic algorithm is used by the NSA and includes digital signature generation.

• Diffie-Hellman

• ECC (Elliptic Curve Cryptography)

• AES (Advance Encryption Standard)

• WEP (Wired Equivalent Privacy)

Which of the following protocols does NOT use asymmetric key algorithms.

• PGP (Pretty Good Privacy)

• AES (Advanced Encryption Standard)

• Secure Socket Layer (SSL)

• Secure Shell (SSH)