如何产生和保存密钥：选择DESede算法,密钥长度为112位或168位，用Java对象序列化保存私钥,通常应对私钥加密后再保存-How to generate and preserve key: Select DESede algorithm, key length of 112 or 168, using Java Object Serialization to preserve the private key, usually to deal with encrypted p

Additional class for verification of KeyGeneratorSpi and KeyGenerator functionality.

ests for KeyGenerator constructor and methods.

provides the public API for generating symmetric cryptographic.