What is ECB Mode?
The Electronic Code Book (ECB) in Cryptography is the most basic and weakest version of DES. At the sender site, plain text messages are split into 64-bit sub-blocks. This technique encrypts each subblock individually. Two plaintexts with partially similar sections (such as a letter header) encrypted with the same key are partially identical ciphertext portions. ECB is appropriate for encrypting small messages, but CBC is better suited to encrypting larger ones.
How Does ECB Mode in Cryptography Work?
- The Electronic Code Book (ECB) mode is one of the easiest and most effective algorithms to use as a simple replacement technique.
- The input plaintext is divided into blocks and encrypted separately with the key. This enables the decryption of each encrypted block independently. Encrypting the same block twice returns the same ciphertext twice.
- In general, if a message is greater than b bits, it can be divided into blocks and the process repeated.
ECB Mode vs CBC Mode in Cryptography
The Electronic Code Book (ECB) is the easiest block cipher way of functioning. It is easier since each block of input plaintext is directly encrypted, and the output is in the form of encrypted ciphertext blocks. In general, if a message is bigger than b bits in size, it can be divided into many blocks and the process repeated. Cipher Block Chaining (CBC) in Cryptography is a block mode of DES that XORs with the next block of plaintext to be encrypted. The first encrypted block is an initialization vector with random data.
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