RSA Security, which had a patent on the algorithm, offered a series of US$10,000 prizes for breaking ciphertexts encrypted with RC5, but these contests have been discontinued as of May 2007.
拥有其算法专利的公司RSA安全， 提供一系列的10,000美元的奖金作为破译用RC5加密的密文的奖励，但这些竞赛已经在2007年5月停止。