Java生成密钥、保存密钥的实例源码，通过本源码可以了解到Java如何产生单钥加密的密钥(myKey)、产生双钥的密钥对(keyPair)、如何保存公钥的字节数组、保存私钥到文件privateKey.dat、如何用Java对象序列化保存私钥,通常应对私钥加密后再保存、如何从文件中得到公钥编码的字节数组、如何从字节数组解码公钥-Java to generate a key instance of the source to save the key can learn Java through this source, how to generate a single key encryption key (myKey), resulting in a dual-key key (keyPair), how to save the public key byte array , public key to save the private key to file privateKey.dat, how to use the Java object serialization to save the private key, usually deal with the private key to encrypt and then save, how to get the public key encoded byte array from a file, how to decode the byte array