Rijndael（读作rain-dahl）是由美国国家标准与技术协会（NIST）所选的高级加密标准（AES）的候选算法。它是从最后的5个候选方案中选出的，而这5个候选方案又是从刚开始的15个算法中选出的。今后的几年内，在许多密码术的应用中Rijndael将逐步取代数据加密标准（DES）以及后来的Triple DES。-Rijndael (pronounced rain-dahl) is from the United States National Institute of Standards and Technology (NIST) selected the Advanced Encryption Standard (AES) candidate algorithms. It is from the final five candidates chosen by the program, which has five candidates for the program from the beginning of the 15 selected algorithm. The next few years, in many applications of cryptography Rijndael will gradually replace the Data Encryption Standard (DES) and later Triple DES.