1.1. 密钥生成器 1
1.2. 生成固定的密钥 2
1.2.1. 设置或重置 SecureRandom 对象的随机数种子 2
1.3. 密钥结构 2
1.1. 密钥生成器
public static Map<String, Object> initKey2(String md5_deta) throws Exception{
/** RSA算法要求有一个可信任的随机数源 */
SecureRandom secureRandom= SecureRandom.getInstance("12345678");
//实例化密钥对生成器
KeyPairGenerator keyPairGen=KeyPairGenerator.getInstance(KEY_ALGORITHM);
// 初始化密钥对生成器
//keyPairGen.initialize(KEY_SIZE);
// 初始化的时候固定随机源的值
keyPairGen.initialize(KEY_SIZE, secureRandom);
// 生成密钥对
KeyPair keyPair=keyPairGen.generateKeyPair();
//公钥
RSAPublicKey publicKey=(RSAPublicKey)keyPair.getPublic();
//私钥
RSAPrivateKey privateKey=(RSAPrivateKey) keyPair.getPrivate();
// 得到公钥字符串
// String publicKeyString = Base64.encode(publicKey.getEncoded());
// 得到私钥字符串
// String privateKeyString = Base64.encode(privateKey.getEncoded());
// 封装密钥
Map<String, Object> keyMap=new HashMap<String,Object>(2);
keyMap.put(PUBLIC_KEY, publicKey);
keyMap.put(PRIVATE_KEY, privateKey);
return keyMap;
}
1.2. 生成固定的密钥
1.2.1. 设置或重置 SecureRandom 对象的随机数种子
除非调用程序在调用 getInstance 方法后接着调用 setSeed 方法，否则 SecureRandom 实现方法将会完全使发生器的内部状态随机化：
SecureRandom secureRandom= new SecureRandom("fixx".getBytes("gbk"));
// 初始化的时候固定随机源的值
keyPairGen.initialize(KEY_SIZE, secureRandom);
方法
SecureRandom secureRandom=new SecureRandom();
secureRandom.setSeed(1235);
1.3. 密钥结构
pubkey_md5：A603B693B6BB434FA3004B7618F3B9BB
{
"RSAPublicKey":{
"algorithm":"RSA",
"algorithmId":{
"name":"RSA",
"oID":{}
},
"encoded":"MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAIQqS1ReGEE/ySM+PyZxS41HzDBul0xIkscNkqd+qZejQ3r2LmUw4BYoTC7CHsFjwk6V/a0Imwz3KsvtsOffii8CAwEAAQ==",
"encodedInternal":"MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAIQqS1ReGEE/ySM+PyZxS41HzDBul0xIkscNkqd+qZejQ3r2LmUw4BYoTC7CHsFjwk6V/a0Imwz3KsvtsOffii8CAwEAAQ==",
"format":"X.509",
"modulus":6922053815168845700711519855384250277549407002769104068590208637227720690525493166882866757882836951436668086793282219943697989363887338835452201051064879,
"publicExponent":65537
},
"RSAPrivateKey":{
"algorithm":"RSA",
"algorithmId":{"$ref":"$.RSAPublicKey.algorithmId"},
"crtCoefficient":12637801240537467651180025414810617094531052210139246616910795005297730540027,
"destroyed":false,
"encoded":"MIIBUwIBADANBgkqhkiG9w0BAQEFAASCAT0wggE5AgEAAkEAhCpLVF4YQT/JIz4/JnFLjUfMMG6XTEiSxw2Sp36pl6NDevYuZTDgFihMLsIewWPCTpX9rQibDPcqy+2w59+KLwIDAQABAkBNu1Zcw46+aZaR/N1FbeMCsBSe85xWyGRTYF891dhHD21HERkZyfm4BooN0VjKohPbatUmRazWfuGKc9hap7Y5AiEAwfjL1el1zq+YOlTqKsJ5oF8/b+55SLD4dasZpAvC+S0CIQCubcsND+yJrFMFDNyQoY+w2GZuEegDQ3gs37R6N4TySwIgSJZfSTylbmQ9tk6Clt/R/hbGuY9nabF4OSh/Xulb3D0CIB2VO2nUuI5E7rOdkc7px7/7g6vJV6suBzS9IBPWVLLvAiAb8L307PiDD9i/IvEbM8uz7RC+YRUr4DNRx66jEkBR+w==",
"format":"PKCS#8",
"modulus":6922053815168845700711519855384250277549407002769104068590208637227720690525493166882866757882836951436668086793282219943697989363887338835452201051064879,
"primeExponentP":32832209798077781373384495608799993732908171300012237207496150976697489677373,
"primeExponentQ":13380742877797692883283997671823302246667615946650995680559515864045072986863,
"primeP":87735964670198717955861353260506633609525089601993964928345575802643155188013,
"primeQ":78896423390213891002409658607133041775965411272664534765346737848126131204683,
"privateExponent":4071143999659477204234638949384102521448065869993059131846279077802500786064340926073856151160133264216762031129885857399234406337799168487767767633081913,
"publicExponent":65537
}
}
取模运算符“%”的作 modulus
作者:: 绰号:老哇的爪子 （ 全名：：Attilax Akbar Al Rapanui 阿提拉克斯 阿克巴 阿尔 拉帕努伊 ）
汉字名：艾提拉（艾龙）， EMAIL:[email protected]
转载请注明来源： http://blog.cnb.net/attilax
Atiend