Random multiple key streams for encryption with added CBC mode of operation
نویسندگان
چکیده
منابع مشابه
Structural Binary CBC Encryption Mode
A block cipher is a kind of symmetric encryption algorithm that operates on blocks of fixed length, often 64 or 128 bits. It transforms blocks of plaintext into blocks of ciphertext of the same length under the provided secret key. A common characteristic of currently widely used modes of operation such as CBC, CFB and OFB is the sequential procedure, i.e., the encryption/decryption algorithm c...
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In current day scenario, the need to protect information has become very important and hence the need for cryptographic algorithms is high. Here, we extend the parallel key encryption algorithm and bring out its full potential by implementing the various cryptographic modes such as cipher block chaining and interleaved cipher block chaining where commendable increase in efficiency and reduction...
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A block cipher encrypts data one block at a time. For bulk data encryption, a block cipher is usually used in a mode of operation. Cipher Block Chaining (CBC) mode encryption is one of the most commonly used modes of operation. The security properties of CBC mode encryption have been studied extensively. One well-known attack against CBC mode encryption allows an attacker, with some restriction...
متن کاملStrengthened Encryption in the CBC Mode
Vaudenay [1] has presented an attack on the CBC mode of block ciphers, which uses padding according to the PKCS#5 standard. One of the countermeasures, which he has assumed, consisted of the encryption of the message M ́= M || padding || hash(M || padding) instead of the original M. This can increase the length of the message by several blocks compared with the present padding. Moreover, Wagner ...
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This paper is primarily concerned with the CBC block cipher mode. The impact on the usability of this mode of recently proposed padding oracle attacks, together with other related attacks described in this paper, is considered. For applications where unauthenticated encryption is required, the use of CBC mode is compared with its major symmetric rival, namely the stream cipher. It is argued tha...
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ژورنال
عنوان ژورنال: Perspectives in Science
سال: 2016
ISSN: 2213-0209
DOI: 10.1016/j.pisc.2016.03.007