Turning two blocks of cleartext with the same content into equal blocks of cyphertext is not great for encryption: https://en.wikipedia.org/wiki/Block_cipher_mo

Turning two blocks of cleartext with the same content into equal blocks of cyphertext is not great for encryption: https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Electronic_Codebook_(ECB) https://en.wikipedia.org/wiki/Block_cipher_mode_of_operation...