Explanation of RC5

Give a brief explanation of RC5.

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RC5 is the fast block cipher which is also designed by Rivest for the RSA Data Security. It is the parameterized algorithm with the variable block size, the variable key size, and the variable number of rounds. The block size can be 32, 128, or 64bits long. The number of rounds can range from 0-255. The key can range from 0 bits to 2048 bits in a size. These built-in variability offers flexibility in levels of security as well as efficiency.

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