RC4 was initially a trade secret, but in September 1994 a description of it was anonymously posted to the Cypherpunks mailing list.

The leaked code was confirmed to be genuine as its output was found to match that of proprietary software using licensed RC4.

It took place along Route Coloniale 4 ( RC4, also known as Highway 4 ), a road which was used to supply the French military base at Cao Bang.

The group's movement down RC4 was slowed by Viet Minh ambushes.

Lang Son, the next French base to the south, was abandoned on 17 October and on 18 October the French command evacuated posts south of Lang Son on RC4.

The most recent patch version, 2. 60j RC4 ( release candidate 4 ) was released in December 2000.

Similar differences in terms of reference account for CRYPTREC recommending at least one stream cipher, RC4, while the NESSIE report specifically said that it was notable that they had not selected any of those considered.

Along with RC4, RC2 with a 40-bit key size was treated favourably under US export regulations for cryptography.

C2Net's relationship with RSA Data Security, Inc. was rocky because C2Net was using the leaked version of their trade-secret encryption algorithim RC4, rather than a version licensed from them directly.

It was in fact this leaked version of RC4 that made it possible to develop a full-strength version of Stronghold outside the United States.

" RC " stands for " Ron's Code " or " Rivest Cipher "; other ciphers designed by Rivest include RC4, RC5 and RC6.

Some applications using the stream cipher RC4 are attackable because of weaknesses in RC4's key setup routine ; new applications should either avoid RC4 or make sure all keys are unique and ideally unrelated ( e. g., generated by a cryptographic hash function ) and that the first bytes of the keystream are discarded.

Designed by Ronald Rivest in 1994, RC stands for " Rivest Cipher ", or alternatively, " Ron's Code " ( compare RC2 and RC4 ).

As a work-around, the BEAST attack can also be prevented by removing all CBC ciphers from one's list of allowed ciphers — leaving only the RC4 cipher, which is still widely supported on most websites.

Klein showed that there are more correlations between the RC4 keystream and the key than the ones found by Fluhrer, Mantin and Shamir which can additionally be used to break WEP in WEP-like usage modes.

CipherSaber-2 modifies CipherSaber-1's key setup procedure by repeating it multiple times in the hope of improving its security ( the result is equivalent to using conventional RC4 starting with a key that's been preprocessed by a complex algorithm ).

The protocol supports the use of Data Encryption Standard ( DES ) encryption ( 56 bit ), 2-key Triple-DES encryption, three-key Triple-DES encryption, Advanced Encryption Standard ( AES ) encryption at up to 256 bits keylength, RC4 ( 40 bits, sold by Motorola as Advanced Digital Privacy ), or no encryption.

At the Securecomm 2011 conference in London, security researcher Steve Glass presented a paper, written by himself and co-author Matt Robert, that explained how DES-OFB and Motorola's proprietary ADP ( RC4 based ) ciphers were vulnerable to brute force key recovery.

RSA Security has never officially released the algorithm ; Rivest has, however, linked to the English Wikipedia article on RC4 in his own course notes.

* Details of the RSADSI ( RSA Data Security, Inc .) cryptographic algorithm software were revealed, probably deliberately, through publication of alleged RC4 source on Usenet.

Eventually C2Net and RSA Data Security, Inc. resolved their differences, and C2Net purchased a patent license for RSA and a license to use the trade-secret RC4 within the United States.

While remarkable for its simplicity and speed in software, RC4 has weaknesses that argue against its use in new systems.

It is especially vulnerable when the beginning of the output keystream is not discarded, or when nonrandom or related keys are used ; some ways of using RC4 can lead to very insecure cryptosystems such as WEP.

The name RC4 is trademarked, so RC4 is often referred to as ARCFOUR or ARC4 ( meaning alleged RC4 ) to avoid trademark problems.

RC4 has become part of some commonly used encryption protocols and standards, including WEP and WPA for wireless cards and TLS.

The lookup stage of RC4.

RC4 is one of the most widely used stream cipher designs.

Examples of popular and well-respected symmetric algorithms include Twofish, Serpent, AES ( Rijndael ), Blowfish, CAST5, RC4, 3DES, and IDEA.

He is the inventor of the symmetric key encryption algorithms RC2, RC4, RC5, and co-inventor of RC6.

Traditional stream ciphers such as RC4 do not support an explicit IV as input, and a custom solution for incorporating an IV into the cipher's key or internal state is needed.

The area became a Viet Minh stronghold, except for the RC4 highway.

On 25 May, 2, 500 Viet Minh troops overwhelmed the French fortress at Dong Khé, which lay at the strategic center of RC4, thus cutting the supply line between the French positions at Cao Bang and Lang Son.

Giap then began harassing French positions along RC4 in northern Vietnam with mines and ambushes.

He bounced exuberantly on the sagging bed and was even more delighted when Madame Lalaurie -- after closing the door -- showed the slave that the bed was designed for something other than slumber.

She designed and supervised the building of the Harbert, Michigan, house, most of which was constructed by one local carpenter who carried the heavy beams singly upon his shoulder.

My other nugget of art and architectural knowledge -- besides remembering that it was Ghiberti who designed the doors of the baptistery in Florence -- is the three styles of Greek columns.

She was forty-nine at this time, a lanky woman of breeding with an austere, narrow face which had the distinction of a steeple or some architecture that had been designed long ago for a stubborn sort of prayer.

For example, the importance of the Regulus 2, a very promising aerodynamic ship-to-surface missile designed to be launched by surfaced submarines, was greatly diminished by the successful acceleration of the much more advanced Polaris ballistic missile launched by submerged submarines.

Another example is the recent cancellation of the F-108, a long-range interceptor with a speed three times as great as the speed of sound, which was designed for use against manned bombers in the period of the mid-1960's.

As America on wheels was responsible for an industry of motor courts, motels, and drive-in establishments where you can dine, see a movie, shop, or make a bank deposit, the ever-increasing number of boating enthusiasts have sparked industries designed especially to accommodate them.

Completed and opened for traffic in 1852, the bridge was designed and built by Lemuel Chenoweth and his brother, Eli, of Beverly.

Called a `` Slo-Flo '' meter it was designed for this job by Power Plus Industries of Los Angeles, a key individual being Don Nelson.

The anode holder shown in figure 2 was designed with two goals in mind.

He found, as he had suspected, a general consensus that perhaps over half of the present functionally designed course was not really functional for these students.

Although the Taylor Scale was designed as a group testing device, in this study it was individually administered by psychologically trained workers who established rapport and assisted the children in reading the items.

The questionnaire was designed to elicit three types of information: ( 1 ) the facts regarding certain characteristics of the respondents, including their experience with, and interest in, securing defense business ; ;

The layout of the sewer lines was designed by Henry W. Taylor, who was the engineer for the Manchester Village disposal plant.

The pilot lagoon was designed to handle the wastes from 314 persons with a 4-day aeration period.

If it was designed to put me on the spot, it would have to have been written before Peralta ever called me in on the case ''.

It was of the hunter-killer type, designed to seek out ships and other submarines with its most advanced gear and destroy them with torpedoes.

The production, designed by Simon Virsaladze, was completely traditional but traditional in the right way.

Hendricks' story was designed for children and he had a small audience of small children right on stage with him.

In Korea, the Hangul alphabet was created by Sejong the Great Hangul is a unique alphabet: it is a featural alphabet, where many of the letters are designed from a sound's place of articulation ( P to look like the widened mouth, L to look like the tongue pulled in, etc.

The Declaration announced the states ' entry into the international system ; the model treaty was designed to establish amity and commerce with other states ; and the Articles of Confederation, which established “ a firm league ” among the thirteen free and independent states, constituted an international agreement to set up central institutions for the conduct of vital domestic and foreign affairs.

The game was conceived by Lyle Rains and programmed and designed by Dominic Walsh and Ed Logg.