me.hao0.common.security

Class RSA

java.lang.Object

me.hao0.common.security.RSA

public class RSA
extends Object

RSA Util Author: haolin On: 12/1/14

Field Summary

Fields

Modifier and Type	Field and Description
static String	KEY_ALGORITHM encrypt algorithm
static String	SIGNATURE_ALGORITHM signature algorithm

Constructor Summary

Constructors

Constructor and Description
RSA()

Method Summary

Methods

Modifier and Type	Method and Description
static byte[]	base64Decode(String key) decode with Base64
static String	base64Encode(byte[] key) encode with Base64
static byte[]	decryptByPrivateKey(byte[] data, String key) decrypt data with private key
static byte[]	decryptByPublicKey(byte[] data, String key) decrypt data with public key
static byte[]	encryptByPrivateKey(byte[] data, String key) encrypt data with private key
static byte[]	encryptByPublicKey(byte[] data, String key) encrypt data with public key
static String	getPrivateKey(Map<String,Object> keyMap) get encoded private key
static String	getPublicKey(Map<String,Object> keyMap) get encoded public key
static Map<String,Object>	initKey() init a public/private key pair
static String	sign(byte[] data, String privateKey) generate signed data with private key
static String	sign(String signing, String privateKey, String charset) generate signed data with private key
static boolean	verify(byte[] data, String signed, String publicKey) verify signed data with public key
static boolean	verify(String signing, String signed, String publicKey, String charset) verify signed data with public key

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

encrypt algorithm

See Also:

Constant Field Values

SIGNATURE_ALGORITHM

public static final String SIGNATURE_ALGORITHM

signature algorithm

See Also:

Constant Field Values

Constructor Detail

RSA

public RSA()

Method Detail

initKey

public static Map<String,Object> initKey()

init a public/private key pair

sign

public static String sign(String signing,
          String privateKey,
          String charset)

generate signed data with private key

Parameters:

signing - original data

privateKey - selves' private key

charset - 字符编码

Returns:

signed data

sign

public static String sign(byte[] data,
          String privateKey)

generate signed data with private key

Parameters:

data - original data

privateKey - selves' private key

Returns:

signed data

verify

public static boolean verify(String signing,
             String signed,
             String publicKey,
             String charset)

verify signed data with public key

Parameters:

signing - original data

signed - signed data

publicKey - public key

charset - charset

Returns:

true if verify successfully, or false

verify

public static boolean verify(byte[] data,
             String signed,
             String publicKey)

verify signed data with public key

Parameters:

data - original data

signed - signed data

publicKey - others' public key

Returns:

true if verify successfully, or false

decryptByPrivateKey

public static byte[] decryptByPrivateKey(byte[] data,
                         String key)

decrypt data with private key

Parameters:

data - encrypted data

key - private key

Returns:

decrypted data

decryptByPublicKey

public static byte[] decryptByPublicKey(byte[] data,
                        String key)

decrypt data with public key

Parameters:

data - encrypted data

key - public key

Returns:

decrypted data

encryptByPublicKey

public static byte[] encryptByPublicKey(byte[] data,
                        String key)

encrypt data with public key

Parameters:

data - original data

key - public key

Returns:

encrypted data

encryptByPrivateKey

public static byte[] encryptByPrivateKey(byte[] data,
                         String key)

encrypt data with private key

Parameters:

data - original data

key - private key

Returns:

encrypted data

getPrivateKey

public static String getPrivateKey(Map<String,Object> keyMap)

get encoded private key

Parameters:

keyMap - key pair

Returns:

encoded private key

getPublicKey

public static String getPublicKey(Map<String,Object> keyMap)

get encoded public key

Parameters:

keyMap - key pair

Returns:

encoded public key

base64Encode

public static String base64Encode(byte[] key)

encode with Base64

Parameters:

key - key

Returns:

encoded key

base64Decode

public static byte[] base64Decode(String key)

decode with Base64

Parameters:

key - key

Returns:

decoded key