lohkotautumisesta
Lohkotautuminen, known in English as block decryption or block unblocking, is a process within cryptography where a cipher's block mode of operation is reversed to recover the original plaintext from ciphertext. This is a fundamental operation for many symmetric encryption algorithms that employ block ciphers, such as AES or DES.
The process of block decryption is directly dependent on the specific block cipher mode being used. For
Other modes, such as Counter (CTR) mode, involve decrypting a keystream which is then XORed with the