Questions tagged [rc2]
RC2 is a symmetric-key block cipher designed by Ron Rivest in 1987.
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Difference between RC2, RC4, RC5 and RC6
Can anyone point out the core differences between these ciphers?
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transforming RC2 keys to have effective minimum length in implementations with fixed effective lengths
mcrypt's implementation of RC2 has a fixed effective length of 1024 bits, however, it is possible to simulate keys with effective lengths between 1-1024 by doing something like this:
http://php.net/...
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RC2, RC4, RC5 key length
While reading the Wiki page on RC4 I noticed that the key size must be in the range of 40–2,048 bits. So should I understand like this, that I can have a key that has length of, lets say 333 bits? (...
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How insecure in practice?
I am in attempt to understand relative insecurity of certain encryption schemes. Particularly of interest is DES and RC2. I know AES is better and should be used to encrypt. But practically, if ...
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