Algorithm Rijndael has been selected as the Advanced Encryption Standard (AES) by NIST in 2000 October. The AES_CBC will be used to replace the DES_CBC and 3DES_CBC in IPSec.

• AES是美国于2000年10月份确立的高级加密标准,该标准的反馈链路模式AES_CBC加密算法,用于在IPSec中替代DES_CBC和3DES_CBC。