cn.ponfee.commons.jce.implementation.rsa

类 RSAKey

java.lang.Object

cn.ponfee.commons.jce.implementation.rsa.RSAKey

所有已实现的接口:

Key

public class RSAKey
extends Object
implements Key

 The RSA Key

 https://blog.csdn.net/seccloud/article/details/8188812
 https://blog.csdn.net/zntsbkhhh/article/details/109581852
 https://www.zhihu.com/question/54779059
 
 (1)选择两个不同的大素数p和q
 (2)计算公共模数(n=pq)和欧拉数(eular=(p-1)(q-1))
 (3)选择公钥指数e
 (4)计算inverse(d)
 (5)生成公钥和私钥
 
 
 公钥KU：
   n：两素数p和q的乘积（p和q必须保密）（n为模值）
   e：与(p-1)*(q-1)互质（e称为公钥指数）

 私钥KR：
   n：两素数p和q的乘积（p和q必须保密）（n为模值）
   d：满足(d*e) mod ((p-1)*(q-1)) = 1（d称为私钥指数）

 加密过程  C=M^e mod n  （C为密文）
 解密过程  M=C^d mod n  （M为明文）
 

作者:

Ponfee

另请参阅:

RSAKeyPairGenerator

字段概要

字段

限定符和类型	字段和说明
BigInteger	coeff
BigInteger	d
BigInteger	e
BigInteger	n
BigInteger	p
BigInteger	pe
BigInteger	q
BigInteger	qe
static int	RSA_F4
boolean	secret

构造器概要

构造器

构造器和说明
RSAKey(BigInteger n, BigInteger e)
RSAKey(BigInteger n, BigInteger e, BigInteger d, BigInteger p, BigInteger q, BigInteger pe, BigInteger qe, BigInteger coeff)
RSAKey(int keySize)
RSAKey(int keySize, int e)

方法概要

限定符和类型	方法和说明
static cn.ponfee.commons.jce.implementation.rsa.RSAKey.KeyPair	generateKey(int keySize, int e) Generate the key pair
RSAKey	getPublic() get the public key
boolean	isPublic()
boolean	isSecret()
RSAKey	readKey(InputStream in)
void	writeKey(OutputStream out)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

RSA_F4

public static final int RSA_F4

另请参阅:

常量字段值

n

public final BigInteger n

e

public final BigInteger e

d

public final BigInteger d

p

public final BigInteger p

q

public final BigInteger q

pe

public final BigInteger pe

qe

public final BigInteger qe

coeff

public final BigInteger coeff

secret

public final boolean secret

构造器详细资料

RSAKey

public RSAKey(int keySize)

RSAKey

public RSAKey(int keySize,
              int e)

RSAKey

public RSAKey(BigInteger n,
              BigInteger e,
              BigInteger d,
              BigInteger p,
              BigInteger q,
              BigInteger pe,
              BigInteger qe,
              BigInteger coeff)

RSAKey

public RSAKey(BigInteger n,
              BigInteger e)

方法详细资料

isPublic

public boolean isPublic()

指定者:

isPublic 在接口中 Key

isSecret

public boolean isSecret()

getPublic

public RSAKey getPublic()

get the public key

指定者:

getPublic 在接口中 Key

writeKey

public void writeKey(OutputStream out)
              throws IOException

指定者:

writeKey 在接口中 Key

抛出:

IOException

readKey

public RSAKey readKey(InputStream in)
               throws IOException

指定者:

readKey 在接口中 Key

抛出:

IOException

generateKey

public static cn.ponfee.commons.jce.implementation.rsa.RSAKey.KeyPair generateKey(int keySize,
                                                                                  int e)

Generate the key pair

参数:

keySize -

e -

返回: