Recent questions tagged cryptography

$\text{MD5}$ is a widely used hash function for producing hash value of$64$ bits$128$ bits$512$ bits$1024$ bits

A sender $S$ sends a message $m$ to receiver $R$, which is digitally signed by $S$ with its private key. In this scenario, one or more of the following security violation...

Consider private key crypto-system has $3$ keys, $3$ plain-texts and $4$ cipher-texts:$K=\{ k1,k2,k3 \}$$M=\{m1, m2,m3 \}$$C=\{c1,c2,c3,c4 \}$In a valid encryption table ...

The plain text message $BAHI$ encrypted with $RSA$ algorithm using $e = 3, d = 7$ and $n = 33$ and the characters of the message are encoded using the values $00$ to $25$...

Find the false statement:In Modern Cryptography, symmetric key algorithms use same key both for Encryption and Decryption.The symmetric cipher DES (Data Encryption Standa...

Match the following cryptographic algorithms with their design issues : $ \begin{array} {cIcI} & \textbf{List-I} & & \textbf{List-II} \\ \text{a.} & \text{DES} & \te...

Advanced Encryption Standard (AES) is based onAsymmetric key algorithmSymmetric key algorithmPublic key algorithmKey exchange

What will be the cipher text produced by the following cipher function for the plain text ISRO with key $k=7$. [ Consider $'A'=0, 'B'=1,....'Z'=25$]$C_{k} (M) = (kM + 13)...

Anarkali digitally signs a message and sends it to Salim. Verification of the signature by Salim requires.Anarkali's public key.Salim's public key.Salim's private key.Ana...