آر سی ۴
Also known as ARC4, ARCFOUR, Rivest Cipher 4, Ron's Code 4, RC4 Cipher Suites
In cryptography, RC4 (also known as ARC4 or ARCFOUR, meaning Alleged RC4, see below) is a stream cipher. While it is remarkable for its simplicity and speed in software, multiple vulnerabilities have been discovered in RC4, rendering it insecure. It is especially vulnerable when the beginning of the output keystream is not discarded, or when nonrandom or related keys are used. Particularly problematic uses of RC4 have led to insecure protocols such as the obsolete WEP protocol historically used to secure WiFi networks.
Key facts
- Encryption method.name
- RC4
- Encryption method.designers
- Ron Rivest (RSA Security)
- Encryption method.publish date
- Leaked in 1994(designed in 1987)
- Encryption method.key size
- 40– bits
- Encryption method.state size
- bits ( effective)
- Encryption method.rounds
- 1
- Encryption method.speed
- 7 cycles per byte on original PentiumModified Alleged RC4 on Intel Core 2: 13.9 cycles per byte
via Wikipedia infobox