The science and art of manipulating messages in order to
make them secure is called cryptography......
types are
symmetric key cryptography and asymmetric key cryptography
1)symmetric key cryptography
same key is used for encryption and decryption
eg :DES IDEA AES
2)Asymmetric key:
public key is used for both encryption and decryption
eg:RSA Difere Hellman
On perform the Mix Columns transformation for the sequence of bytes “67 89 AB CD” we get output
a) {08 55 FF 18}
b) {28 45 EF 08}
c) {28 45 FF 18}
d) {25 35 EF 08}Explain me what is Diffie-Hellman?
Cryptanalysis is used A. to find some insecurity in a cryptographic scheme B. to increase the speed C. to encrypt the data D. none of the mentioned
Which of the following is a faulty S-AES step function? a) Add round key b) Byte substitution c) Shift rows d) Mix Columns
Explain me what is Cryptanalysis?
Do you know advanced Encryption Standard?
Tell me what are MD2, MD4, and MD5?
Tell me how can you defend against phishing attempts?
Tell me how would an HTTP program handle state?
Tell me what is the difference between a public key cryptography and a private key for encrypting and signing content?
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