Chapter 5 Basic Cryptography Prep
Exam Questions And All Correct
Answers.
Cryptography - Answer Scrambling data so it can not be read
Encryption - Answer Changing original text into secret message
Decryption - Answer Change secret message back to original
Cleartext - Answer Unencrypted data
Plaintext - Answer Data in cleartext that is to BE encrypted
Algorithms - Answer Procedures based on a Mathematical formula used to encrypted and decrypt the
data
Cryptography provides 5 basic protections - Answer Confidentiality, Integrity, availability,
authentication, non-repudiation
Cryptographic algorithm
Stream cipher - Answer Substitution cipher
Symmetric cryptographic algorithm - Answer Same single key to encrypt and decrypt
Types of symmetric key - Answer DES (data encryption standard), 3DES, AES (Advanced encryption
standard) RC2,RC4,RC5,RC6,IDEA, blowfish,twofish,OTP
Asymmetric cryptographic algorithms - Answer Known as public key cryptography
Exam Questions And All Correct
Answers.
Cryptography - Answer Scrambling data so it can not be read
Encryption - Answer Changing original text into secret message
Decryption - Answer Change secret message back to original
Cleartext - Answer Unencrypted data
Plaintext - Answer Data in cleartext that is to BE encrypted
Algorithms - Answer Procedures based on a Mathematical formula used to encrypted and decrypt the
data
Cryptography provides 5 basic protections - Answer Confidentiality, Integrity, availability,
authentication, non-repudiation
Cryptographic algorithm
Stream cipher - Answer Substitution cipher
Symmetric cryptographic algorithm - Answer Same single key to encrypt and decrypt
Types of symmetric key - Answer DES (data encryption standard), 3DES, AES (Advanced encryption
standard) RC2,RC4,RC5,RC6,IDEA, blowfish,twofish,OTP
Asymmetric cryptographic algorithms - Answer Known as public key cryptography
