Rivest, R. L, "Block Encryption Algorithm With Data Dependent Rotation", 美國專利第5,724,428号, issued on 3 March 1998.
mit.edu
theory.lcs.mit.edu
Rivest, R. L. The RC5 Encryption Algorithm(pdf). Proceedings of the Second International Workshop on Fast Software Encryption (FSE) 1994e: 86–96. 1994 [2018-10-02]. (原始内容存档(PDF)于2007-04-17).
Rivest, R. L. The RC5 Encryption Algorithm(pdf). Proceedings of the Second International Workshop on Fast Software Encryption (FSE) 1994e: 86–96. 1994 [2018-10-02]. (原始内容存档(PDF)于2007-04-17).