Identify the Two parts of Blow fish Encryption
-
Modulation of data
-
encryption of the data
-
expansion of the key
-
Join Key to data
Blowfish encryption consists of two main components: key expansion (generating subkeys from the encryption key through the Feistel network) and data encryption (the actual encryption process using round keys). These two parts work together - key expansion prepares the cryptographic material, then data encryption applies it to transform plaintext.
Blowfish's algorithm splits into two functional parts: a key-expansion phase, which converts the variable-length key into several subkey arrays (the P-array and S-boxes) via repeated application of the cipher itself, and the actual data-encryption phase, which uses those precomputed subkeys in a 16-round Feistel network to transform the plaintext. 'Modulation of data' and 'Join key to data' aren't real stages of the algorithm.