ciphertext stealing造句
例句與造句
- One way to handle this last issue is through the method known as ciphertext stealing.
- Ciphertext stealing for ECB mode requires the plaintext to be longer than one block or less, such as the CTR, CFB or OFB modes.
- This does have the advantage that, if the final plaintext block happens to be a multiple of the block size, the ciphertext is identical to that of the original mode of operation without ciphertext stealing.
- Many whole-disk encryption systems BestCrypt, dm-crypt, FreeOTFE, TrueCrypt, DiskCryptor, FreeBSD's geli, OpenBSD softraid disk encryption software, and Mac OS X Lion's FileVault 2-- support XEX-based tweaked-codebook mode with ciphertext stealing ( XTS mode ).
- CFB shares two advantages over CBC mode with the stream cipher modes OFB and CTR : the block cipher is only ever used in the encrypting direction, and the message does not need to be padded to a multiple of the cipher block size ( though ciphertext stealing can also be used to make padding unnecessary ).
- It's difficult to find ciphertext stealing in a sentence. 用ciphertext stealing造句挺難的
- This may not be possible in situations where the IV can not be freely chosen by the sender when the ciphertext is sent ( e . g ., when the IV is a derived or pre-established value ), and in this case ciphertext stealing for CBC mode can only occur in plaintexts longer than one block.