In this form of encryption algorithm, every individual block contains 64-bit data, and three keys are used, where each key consists of 56 bits. Which is this encryption algorithm?
In Data Encryption Standard (DES) by applying it three times to each data block.
Here’s how it works:
Encrypts the data with the first 56-bit key.
Decrypts the output using the second 56-bit key.
Encrypts it again with the third 56-bit key.
This triple-layer approach makes it significantly more secure than standard DES, though it's largely been replaced by more modern algorithms like AES (Advanced Encryption Standard).
In Triple DES, each data block is 64 bits. It uses three keys, each of 56 bits (though the keys are often provided as 64 bits with 8 bits used for parity, effectively 56 bits).
Characteristics of Triple DES (3DES):
- It operates on 64-bit blocks of data
- It uses three 56-bit keys (K1, K2, and K3), effectively providing a key length of up to 168 bits
- The encryption process involves three operations: encrypting with K1, decrypting with K2, and encrypting again with K3 (Encrypt-Decrypt-Encrypt or EDE mode)
Characteristics of Triple DES (3DES).
-- It operates on 64-bit blocks of data.
-- It uses three 56-bit keys (K1, K2, and K3), effectively providing a key length of up to 168 bits.
-- The encryption process involves three operations: encrypting with K1, decrypting with K2, and encrypting again with K3 (Encrypt-Decrypt-Encrypt or EDE mode).
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