程序包 com.gdxsoft.easyweb.utils

类 URsa

java.lang.Object

com.gdxsoft.easyweb.utils.URsa

public class URsa
extends Object

RSA工具类

作者:

admin

字段概要

字段

修饰符和类型	字段	说明
static final String	DIGEST_ALGORITHM
static final String	DIGEST_MD5	已过时。
static final String	DIGEST_SHA1
static final String	DIGEST_SHA256
static final String	KEY_ALGORITHM
static final String	SIGNATURE_DEFAULT_ALGORITHM
static final String	SIGNATURE_MD5withRSA	已过时。
static final String	SIGNATURE_SHA1withRSA
static final String	SIGNATURE_SHA256withRSA

构造器概要

构造器

构造器	说明
URsa()	sign: SHA256withRSA digest: sha-256
URsa(String signAlgorithm)

方法概要

修饰符和类型	方法	说明
byte[]	decrypt(byte[] encryptData, Key key)	Decryption
byte[]	decryptBc(byte[] encryptData, Key key)	Decryption (Using BC)
byte[]	decryptJava(byte[] encryptData, Key key)	Decryption (Using java)
byte[]	decryptPrivate(byte[] encryptData)	私匙解密
byte[]	decryptPrivate(String base64EncryptData)	私匙解密
byte[]	decryptPublic(byte[] encryptData)	公匙解密
byte[]	decryptPublic(String base64EncryptData)	公匙解密
byte[]	digestMessage(byte[] data)	Create data digest(Using java.security or BC According to usingBc parameter)
byte[]	digestMessageBc(byte[] data)	Create data digest(Using BC)
byte[]	digestMessageJava(byte[] data)	Create data digest(Using java.security)
byte[]	encrypt(byte[] data, Key key)	Encryption (Using java.security or BC According to usingBc parameter)
byte[]	encryptBc(byte[] data, Key key)	Encryption (Using BC)
byte[]	encryptJava(byte[] data, Key key)	Encryption (Using java.security)
byte[]	encryptPrivate(byte[] data)	Encrypt the data with private key
byte[]	encryptPublic(byte[] data)	Encrypt the data with public key
void	generateRsaKeys(int keySize)	Create new public/private key
String	getDigestAlgorithm()	摘要算法
RSAPrivateKey	getPrivateKey()	获取私匙
RSAPublicKey	getPublicKey()	获取公匙
String	getSignAlgorithm()	算法
RSAPrivateKey	initPrivateDerKey(String derPrivateKeyFilePath)	Initialize the private key with DER file
RSAPrivateKey	initPrivateKey(byte[] keyBytes)	Initialize the private key (DER format)
RSAPrivateKey	initPrivateKey(String privateKeyFilePath)	Initialize the private key with the private key file(.DER or .PEM)
RSAPrivateKey	initPrivatePemKey(String pemPrivateKeyFilePath)	Initialize the private key with the PEM format file
RSAPublicKey	initPublicDerKey(byte[] keyBytes)	Initialize the public key with the key
RSAPublicKey	initPublicDerKey(String derPublicKeyFilePath)	Initialize the public key with the key file(DER)
RSAPublicKey	initPublicKey(String publicKeyFilePath)	Initialize the public key with the key file(DER/PEM)
RSAPublicKey	initPublicPemKey(String pemPublicKeyFilePath)	Initialize the public key with the key file(PEM)
boolean	isUsingBc()	Using java.security or BC for encryption/decryption according to parameter usingBc
String	privateKeyToPem()	输出pem格式私匙
String	publicKeyToPem()	输出 pem格式公匙
byte[]	readPemKey(String pemKeyFilePath)	Convert the The PEM key file to the key buff
void	setDigestAlgorithm(String digestAlgorithm)	摘要算法
void	setPrivateKey(RSAPrivateKey privateKey)	设置私匙
void	setPublicKey(RSAPublicKey publicKey)	设置公匙
void	setSignAlgorithm(String signAlgorithm)	算法
void	setUsingBc(boolean usingBc)	Using java.security or BC for encryption/decryption according to parameter usingBc
byte[]	sign(byte[] data)	RSA signing (Using java.security or BC According to usingBc parameter)
String	signBase64(byte[] data)	RSA Sign the data and returns the base64 encoded signed data
byte[]	signBc(byte[] data)	RSA signing(Using BC)
byte[]	signJava(byte[] data)	RSA signing (Using java.secruity)
boolean	verify(byte[] data, byte[] sign)	Verification the RSA digital signature (Using java.security or BC According to usingBc parameter)
boolean	verifyBase64(byte[] data, String base64Sign)	Verification the RSA digital signature (Using java.security or BC According to usingBc parameter)
boolean	verifyBc(byte[] data, byte[] sign)	Verification the RSA digital signature(USING BC)
boolean	verifyJava(byte[] data, byte[] sign)	Verification the RSA digital signature (Using java.security)

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

KEY_ALGORITHM

public static final String KEY_ALGORITHM

另请参阅:

• 常量字段值

SIGNATURE_DEFAULT_ALGORITHM

public static final String SIGNATURE_DEFAULT_ALGORITHM

另请参阅:

• 常量字段值

DIGEST_ALGORITHM

public static final String DIGEST_ALGORITHM

另请参阅:

• 常量字段值

SIGNATURE_SHA256withRSA

public static final String SIGNATURE_SHA256withRSA

另请参阅:

• 常量字段值

DIGEST_SHA256

public static final String DIGEST_SHA256

另请参阅:

• 常量字段值

SIGNATURE_SHA1withRSA

public static final String SIGNATURE_SHA1withRSA

另请参阅:

• 常量字段值

DIGEST_SHA1

public static final String DIGEST_SHA1

另请参阅:

• 常量字段值

SIGNATURE_MD5withRSA

@Deprecated
public static final String SIGNATURE_MD5withRSA

已过时。

另请参阅:

• 常量字段值

DIGEST_MD5

@Deprecated
public static final String DIGEST_MD5

已过时。

另请参阅:

• 常量字段值

构造器详细资料

URsa

public URsa()

sign: SHA256withRSA digest: sha-256

URsa

public URsa(String signAlgorithm)

方法详细资料

generateRsaKeys

public void generateRsaKeys(int keySize)
                     throws NoSuchAlgorithmException

Create new public/private key

参数:

keySize - This is an algorithm-specific metric, such as modulus length, specified in number of bits.

抛出:

NoSuchAlgorithmException

readPemKey

public byte[] readPemKey(String pemKeyFilePath)
                  throws IOException

Convert the The PEM key file to the key buff

参数:

pemKeyFilePath - The PEM key file path

返回:

the converted key data

抛出:

IOException

initPublicKey

public RSAPublicKey initPublicKey(String publicKeyFilePath)
                           throws NoSuchAlgorithmException,
InvalidKeySpecException,
IOException

Initialize the public key with the key file(DER/PEM)

参数:

publicKeyFilePath - the key file(DER/PEM) path

返回:

the public key

抛出:

NoSuchAlgorithmException

InvalidKeySpecException

IOException

initPublicPemKey

public RSAPublicKey initPublicPemKey(String pemPublicKeyFilePath)
                              throws IOException,
NoSuchAlgorithmException,
InvalidKeySpecException

Initialize the public key with the key file(PEM)

参数:

pemPublicKeyFilePath - the key file(PEM) path

返回:

the public key

抛出:

IOException

InvalidKeySpecException

NoSuchAlgorithmException

initPublicDerKey

public RSAPublicKey initPublicDerKey(String derPublicKeyFilePath)
                              throws IOException,
NoSuchAlgorithmException,
InvalidKeySpecException

Initialize the public key with the key file(DER)

参数:

derPublicKeyFilePath - the key file(DER) path

返回:

the public key

抛出:

IOException

NoSuchAlgorithmException

InvalidKeySpecException

initPublicDerKey

public RSAPublicKey initPublicDerKey(byte[] keyBytes)
                              throws NoSuchAlgorithmException,
InvalidKeySpecException

Initialize the public key with the key

参数:

keyBytes - the key data

返回:

the public key

抛出:

NoSuchAlgorithmException

InvalidKeySpecException

initPrivateKey

public RSAPrivateKey initPrivateKey(String privateKeyFilePath)
                             throws IOException,
NoSuchAlgorithmException,
InvalidKeySpecException

Initialize the private key with the private key file(.DER or .PEM)

参数:

privateKeyFilePath - the private key file

返回:

the private key

抛出:

IOException

InvalidKeySpecException

NoSuchAlgorithmException

initPrivatePemKey

public RSAPrivateKey initPrivatePemKey(String pemPrivateKeyFilePath)
                                throws IOException,
NoSuchAlgorithmException,
InvalidKeySpecException

Initialize the private key with the PEM format file

参数:

pemPrivateKeyFilePath - the private key PEM format file

返回:

The private key

抛出:

IOException

InvalidKeySpecException

NoSuchAlgorithmException

initPrivateDerKey

public RSAPrivateKey initPrivateDerKey(String derPrivateKeyFilePath)
                                throws IOException,
NoSuchAlgorithmException,
InvalidKeySpecException

Initialize the private key with DER file

参数:

derPrivateKeyFilePath - The DER file path

返回:

the private key

抛出:

IOException

InvalidKeySpecException

NoSuchAlgorithmException

initPrivateKey

public RSAPrivateKey initPrivateKey(byte[] keyBytes)
                             throws NoSuchAlgorithmException,
InvalidKeySpecException

Initialize the private key (DER format)

参数:

keyBytes - the DER key

返回:

the private key

抛出:

NoSuchAlgorithmException

InvalidKeySpecException

signBase64

public String signBase64(byte[] data)
                  throws Exception

RSA Sign the data and returns the base64 encoded signed data

参数:

data - the source data

返回:

the base64 encoded signed data

抛出:

InvalidKeyException

NoSuchAlgorithmException

SignatureException

Exception

sign

public byte[] sign(byte[] data)
            throws Exception

RSA signing (Using java.security or BC According to usingBc parameter)

参数:

data - the source data

返回:

signature the signed data

抛出:

Exception

signJava

public byte[] signJava(byte[] data)
                throws NoSuchAlgorithmException,
InvalidKeyException,
SignatureException

RSA signing (Using java.secruity)

参数:

data - the source data

返回:

signature the signed data

抛出:

NoSuchAlgorithmException

InvalidKeyException

SignatureException

Exception

signBc

public byte[] signBc(byte[] data)
              throws IOException,
org.bouncycastle.crypto.DataLengthException,
org.bouncycastle.crypto.CryptoException

RSA signing(Using BC)

参数:

data - the source data

返回:

signature

抛出:

Exception

IOException

org.bouncycastle.crypto.DataLengthException

org.bouncycastle.crypto.CryptoException

verifyBase64

public boolean verifyBase64(byte[] data,
 String base64Sign)
                     throws Exception

Verification the RSA digital signature (Using java.security or BC According to usingBc parameter)

参数:

data - the source data

base64Sign - sign the signature of the source data(base64)

返回:

verify result

抛出:

Exception

verify

public boolean verify(byte[] data,
 byte[] sign)
               throws Exception

Verification the RSA digital signature (Using java.security or BC According to usingBc parameter)

参数:

data - the source data

sign - the signature of the source data

返回:

verify result

抛出:

Exception

verifyJava

public boolean verifyJava(byte[] data,
 byte[] sign)
                   throws NoSuchAlgorithmException,
InvalidKeyException,
SignatureException

Verification the RSA digital signature (Using java.security)

参数:

data - the source data

sign - the signature of the source data

返回:

verify result

抛出:

NoSuchAlgorithmException

InvalidKeyException

SignatureException

Exception

verifyBc

public boolean verifyBc(byte[] data,
 byte[] sign)
                 throws IOException

Verification the RSA digital signature(USING BC)

参数:

data - the source data

sign - the signature of the source data

返回:

verify result

抛出:

IOException

digestMessage

public byte[] digestMessage(byte[] data)
                     throws NoSuchAlgorithmException

Create data digest(Using java.security or BC According to usingBc parameter)

参数:

data - the source data

返回:

the digest result

抛出:

NoSuchAlgorithmException

digestMessageJava

public byte[] digestMessageJava(byte[] data)
                         throws NoSuchAlgorithmException

Create data digest(Using java.security)

参数:

data - the source data

返回:

the digest result

抛出:

NoSuchAlgorithmException

digestMessageBc

public byte[] digestMessageBc(byte[] data)

Create data digest(Using BC)

参数:

data - the source data

返回:

the digest result

encryptPublic

public byte[] encryptPublic(byte[] data)
                     throws Exception

Encrypt the data with public key

参数:

data - the plain data

返回:

the encryption data

抛出:

Exception

encryptPrivate

public byte[] encryptPrivate(byte[] data)
                      throws Exception

Encrypt the data with private key

参数:

data - the plain data

返回:

the encryption data

抛出:

Exception

encrypt

public byte[] encrypt(byte[] data,
 Key key)
               throws Exception

Encryption (Using java.security or BC According to usingBc parameter)

参数:

data - the plain data

key - publicKey / privateKey

返回:

the encryption data

抛出:

Exception

encryptJava

public byte[] encryptJava(byte[] data,
 Key key)
                   throws NoSuchAlgorithmException,
NoSuchPaddingException,
InvalidKeyException,
IllegalBlockSizeException,
BadPaddingException

Encryption (Using java.security)

参数:

data - the plain data

key - publicKey/ privateKey

返回:

the encryption data

抛出:

NoSuchAlgorithmException

NoSuchPaddingException

InvalidKeyException

IllegalBlockSizeException

BadPaddingException

encryptBc

public byte[] encryptBc(byte[] data,
 Key key)
                 throws IOException,
org.bouncycastle.crypto.InvalidCipherTextException

Encryption (Using BC)

参数:

data - the plain data

key - publicKey/ privateKey

返回:

the encryption data

抛出:

IOException

org.bouncycastle.crypto.InvalidCipherTextException

decryptPublic

public byte[] decryptPublic(String base64EncryptData)
                     throws Exception

公匙解密

参数:

base64EncryptData - base64加密数据

返回:

解密数据

抛出:

IOException

InvalidKeyException

NoSuchAlgorithmException

NoSuchPaddingException

IllegalBlockSizeException

BadPaddingException

Exception

decryptPublic

public byte[] decryptPublic(byte[] encryptData)
                     throws Exception

公匙解密

参数:

encryptData - 加密数据

返回:

解密数据

抛出:

InvalidKeyException

NoSuchAlgorithmException

NoSuchPaddingException

IllegalBlockSizeException

BadPaddingException

Exception

decryptPrivate

public byte[] decryptPrivate(String base64EncryptData)
                      throws Exception

私匙解密

参数:

base64EncryptData - base64加密数据

返回:

解密数据

抛出:

IOException

InvalidKeyException

NoSuchAlgorithmException

NoSuchPaddingException

IllegalBlockSizeException

BadPaddingException

Exception

decryptPrivate

public byte[] decryptPrivate(byte[] encryptData)
                      throws Exception

私匙解密

参数:

encryptData - 加密数据

返回:

解密数据

抛出:

InvalidKeyException

NoSuchAlgorithmException

NoSuchPaddingException

IllegalBlockSizeException

BadPaddingException

Exception

decrypt

public byte[] decrypt(byte[] encryptData,
 Key key)
               throws Exception

Decryption

参数:

encryptData - Encrypted data

key - publicKey / privateKey

返回:

the plain data

抛出:

Exception

decryptJava

public byte[] decryptJava(byte[] encryptData,
 Key key)
                   throws NoSuchAlgorithmException,
NoSuchPaddingException,
InvalidKeyException,
IllegalBlockSizeException,
BadPaddingException

Decryption (Using java)

参数:

encryptData - Encrypted data

key - publicKey / privateKey

返回:

the plain data

抛出:

NoSuchPaddingException

NoSuchAlgorithmException

InvalidKeyException

BadPaddingException

IllegalBlockSizeException

Exception

decryptBc

public byte[] decryptBc(byte[] encryptData,
 Key key)
                 throws IOException,
org.bouncycastle.crypto.InvalidCipherTextException

Decryption (Using BC)

参数:

encryptData - Encrypted data

key - PublicKey/ PrivateKey

返回:

the plain data

抛出:

IOException

org.bouncycastle.crypto.InvalidCipherTextException

privateKeyToPem

public String privateKeyToPem()
                       throws IOException

输出pem格式私匙

返回:

pem格式私匙

抛出:

IOException

publicKeyToPem

public String publicKeyToPem()
                      throws IOException

输出 pem格式公匙

返回:

pem格式公匙

抛出:

IOException

getPrivateKey

public RSAPrivateKey getPrivateKey()

获取私匙

返回:

私匙

getPublicKey

public RSAPublicKey getPublicKey()

获取公匙

返回:

公匙

getSignAlgorithm

public String getSignAlgorithm()

算法

返回:

算法

setSignAlgorithm

public void setSignAlgorithm(String signAlgorithm)

算法

参数:

signAlgorithm - 算法

getDigestAlgorithm

public String getDigestAlgorithm()

摘要算法

返回:

摘要算法

setDigestAlgorithm

public void setDigestAlgorithm(String digestAlgorithm)

摘要算法

参数:

digestAlgorithm - 摘要算法

setPrivateKey

public void setPrivateKey(RSAPrivateKey privateKey)

设置私匙

参数:

privateKey -

setPublicKey

public void setPublicKey(RSAPublicKey publicKey)

设置公匙

参数:

publicKey -

isUsingBc

public boolean isUsingBc()

Using java.security or BC for encryption/decryption according to parameter usingBc

返回:

true= BC, false= java.security

setUsingBc

public void setUsingBc(boolean usingBc)

Using java.security or BC for encryption/decryption according to parameter usingBc

参数:

usingBc - true= BC, false= java.security