RC5
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In cryptography, RC5 is a symmetric-key block cipher notable for its simplicity. Designed by Ronald Rivest in 1994, RC stands for "Rivest Cipher", or alternatively, "Ron's Code". The Advanced Encryption Standard candidate RC6 was based on RC5. Wikipedia
First published: 1994
Block sizes: 32, 64 or 128 bits (64 suggested)
Key sizes: 0 to 2040 bits (128 suggested)
Rounds: 1-255 (12 suggested originally)
Structure: Feistel-like network
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