不对称加密

• The following code example illustrates how to create new keys and ivs after a new instance of the asymmetric cryptographic class has been made
  方法创建新的密钥和iv 。下面的代码示例阐释如何在创建了不对称加密类的新实例后创建新的密钥和iv 。
• Asymmetric cryptographic algorithms , also known as public - key algorithms , require that each entity maintains a pair of related keys : a private key and a public key
  不对称加密算法（也称为公钥算法）要求每个实体都维护一对相关密钥：私钥和公钥。