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RC4 + is a modified version of RC4 with a more complex three-phase key schedule (taking about three times as long as RC4, or the same as RC4-drop512), and a more complex output function which performs four additional lookups in the S array for each byte output, taking approximately 1.7 times as long as basic RC4.
The primary modification in the RC4 implementation in BlackEnergy 2 lies in the key-scheduling algorithm. [7] Capabilities. Can execute local files;
The basis of the FMS attack lies in the use of weak initialization vectors (IVs) used with RC4. RC4 encrypts one byte at a time with a keystream output from prga(); RC4 uses the key to initialize a state machine via ksa(), and then continuously modifies the state and generates a new byte of the keystream from the new state.
In August 2001, Scott Fluhrer, Itsik Mantin, and Adi Shamir published a cryptanalysis of WEP [4] that exploits the way the RC4 ciphers and IV are used in WEP, resulting in a passive attack that can recover the RC4 key after eavesdropping on the network. Depending on the amount of network traffic, and thus the number of packets available for ...
VMPC (Variably Modified Permutation Composition) for cryptography is a stream cipher similar to the well known and popular cipher RC4 designed by Ron Rivest. It was designed by Bartosz Żółtak, presented in 2004 at the Fast Software Encryption conference. VMPC is a modification of the RC4 cipher. [1]
Lastly, I wrote an RC4 implementation a few years ago, which produces the values I listed. The implementation output matches the official test vectors from RFC 6229, so I am fairly confident it is correct.
CipherSaber is a simple symmetric encryption protocol based on the RC4 stream cipher. Its goals are both technical and political: it gives reasonably strong protection of message confidentiality, yet it's designed to be simple enough that even novice programmers can memorize the algorithm and implement it from scratch.
SSLeay is an open-source SSL implementation. It was developed by Eric Andrew Young [1] and Tim J. Hudson as an SSL 3.0 implementation using RC2 and RC4 encryption. [2] The recommended pronunciation is to say each letter s-s-l-e-a-y and was first developed by Eric A. Young ("eay"). [3]