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WorksheetsCryptography
Total questions: 17
Worksheet time: 9mins
Symmetric encryption is also known as
public key encryption
Asymmetrickey encryption
Conventional Encryption
Hybrid encryption
Digital signature cannot provide following information
Authentication
Nonrepudiation
Confidentiality
integrity
Encryption is used primarilly with
transition entry
computer processing
file retention
data communication
which of the following process converts cipher text to plain text
Hashing
substitution
Encryption
Decryption
MD5 is widely used hash function for producing Hash value of
256 bits
128 bits
1024 bits
64 bits
What is the key size of Data encryption Algorithim used in cryptography
64 bits
128 bits
56 bits
1024 bits
In cryptography the order of letters in message is rearranged by
transpositional cipher
substitution cipher
Both A and B
None Above
What is Data encryption standard
Block Cipher
Stream Cipher
Bit cipher
None Above
cryptographic hash function takes an arbitrary block of data and returns
fixed size bit string
variable size bit string
Both A and B
None above
In asymmetric key cryptography private key is kept by
Sender
Receiver
Both A and B
All connected devices
The Bitcoin was introduced in this world by?
Staurt Haber
W.Scort Sotnatto
Satoshi Nakamoto
Dave Bayer
Bitcoin is a cryptocurrency invented in
2007
2008
2011
Bitcoins are created as a reward for a process known as
Minning
Wallet
Ledger
Bubble
Transactions ar verified by network nodes through cryptography and recorded in a public distributed ledger called a ?
Crypto currency wallet
Blockchain
Blockchain
Cryptocurrency
Which hash function used in Ledger
SHA-256
SHA-128
SHA-512
SHA-64
What is the block time of the ledger?
10Min
12 Min
5 Min
15 Min
Nakamoto implemented the bitcoin software as open-source code
True
False
Can be True or False
Cannot Say
