com.xunlei.channel.common.utils.encrypt

Class RSAEncrypt

java.lang.Object

com.xunlei.channel.common.utils.encrypt.RSAEncrypt

public abstract class RSAEncrypt
extends Object

Since:

2017/12/28

Author:

xiongyingqi

Field Summary

Fields

Modifier and Type	Field and Description
static String	ENCODING
static String	KEY_ALGORITHM
static String	SIGNATURE_ALGORITHM
static String	X509

Constructor Summary

Constructors

Constructor and Description
RSAEncrypt()

Method Summary

Modifier and Type	Method and Description
static byte[]	decryptByPrivateKey(byte[] bytes, String privateKey) RSA解密
static byte[]	encryptByPublicKey(byte[] bytes, String publicKey) RSA加密
static int	getByteLength(BigInteger modulus)
static String	getKey(String content)
static PrivateKey	getPrivateKey(String key) 获取私钥
static PublicKey	getPublicKey(String key) 获取公钥
static int	keySize(RSAKey rsaKey)
static int	maxCipherLength(PrivateKey privateKey)
static int	maxPlainTextLength(PublicKey publicKey)
static String	readSourceKey(String path) 从文件中读取密钥字符串

Methods inherited from class java.lang.Object

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

Field Detail

KEY_ALGORITHM

public static final String KEY_ALGORITHM

See Also:

Constant Field Values

ENCODING

public static final String ENCODING

See Also:

Constant Field Values

SIGNATURE_ALGORITHM

public static final String SIGNATURE_ALGORITHM

See Also:

Constant Field Values

X509

public static final String X509

See Also:

Constant Field Values

Constructor Detail

RSAEncrypt

public RSAEncrypt()

Method Detail

encryptByPublicKey

public static byte[] encryptByPublicKey(byte[] bytes,
                                        String publicKey)

RSA加密

Parameters:

bytes - 待签名数据原始串

publicKey - 公钥

Returns:

true通过 false失败

decryptByPrivateKey

public static byte[] decryptByPrivateKey(byte[] bytes,
                                         String privateKey)

RSA解密

Parameters:

bytes - 密文

privateKey - 私钥

Returns:

true通过 false失败

maxCipherLength

public static int maxCipherLength(PrivateKey privateKey)

maxPlainTextLength

public static int maxPlainTextLength(PublicKey publicKey)

getByteLength

public static int getByteLength(BigInteger modulus)

keySize

public static int keySize(RSAKey rsaKey)

getPrivateKey

public static PrivateKey getPrivateKey(String key)
                                throws Exception

获取私钥

Parameters:

key -

Returns:

返回私钥

Throws:

Exception

getPublicKey

public static PublicKey getPublicKey(String key)
                              throws Exception

获取公钥

Parameters:

key -

Returns:

返回公钥

Throws:

Exception

getKey

public static String getKey(String content)
                     throws Exception

Throws:

Exception

readSourceKey

public static String readSourceKey(String path)

从文件中读取密钥字符串

unSafe

Parameters:

path - 密钥绝对路径

Returns:

Throws:

Exception