IT 223 CRYPTOGRAPHY QUESTIONS WITH VERIFIED
ACCURATE ANSWERS
F - Answers -Strong cryptography requires that the cryptographic algorithm be kept
secret- T or F
Encryption - Answers -changing plaintext into ciphertext.
Cryptography - Answers -is the use of mathematical
operations to protect messages traveling
between parties or stored on a computer
Decryption - Answers -changing back to plaintext.
Confidentiality - Answers -means that someone intercepting your communications
cannot read them
Authentication - Answers -- means proving one's identity to another so they can trust
you more
Integrity - Answers -means that the message cannot be changed or, if it is changed,
that this change will be detected
Substitution - Answers -one character is substituted for another, but the order of
characters is not changed.
Transposition - Answers -the letters are moved around within a message, based on
their initial positions in the message.
Key agreement
Handshaking
Keying - Answers -What are the 3 stages are required before two parties can use
cryptographic functions on an on-going basis?
Cipher suite - Answers -- includes a specific set of methods and options for initial
authentication, key exchange, and ongoing message confidentiality, authentication and
integrity
- is a specific set of options for a particular cryptographic system standard..
Hashing - Answers -A cryptographic algorithm that is designated to only provide
integrity
The sender's private key - Answers -Which key is used for authenticating the origin?
Digital Signature - Answers --provides the subject's (True Party's) name and public key
ACCURATE ANSWERS
F - Answers -Strong cryptography requires that the cryptographic algorithm be kept
secret- T or F
Encryption - Answers -changing plaintext into ciphertext.
Cryptography - Answers -is the use of mathematical
operations to protect messages traveling
between parties or stored on a computer
Decryption - Answers -changing back to plaintext.
Confidentiality - Answers -means that someone intercepting your communications
cannot read them
Authentication - Answers -- means proving one's identity to another so they can trust
you more
Integrity - Answers -means that the message cannot be changed or, if it is changed,
that this change will be detected
Substitution - Answers -one character is substituted for another, but the order of
characters is not changed.
Transposition - Answers -the letters are moved around within a message, based on
their initial positions in the message.
Key agreement
Handshaking
Keying - Answers -What are the 3 stages are required before two parties can use
cryptographic functions on an on-going basis?
Cipher suite - Answers -- includes a specific set of methods and options for initial
authentication, key exchange, and ongoing message confidentiality, authentication and
integrity
- is a specific set of options for a particular cryptographic system standard..
Hashing - Answers -A cryptographic algorithm that is designated to only provide
integrity
The sender's private key - Answers -Which key is used for authenticating the origin?
Digital Signature - Answers --provides the subject's (True Party's) name and public key
