cn.tdchain.tdmsp.util

类 EccUtil

java.lang.Object

cn.tdchain.tdmsp.util.EccUtil

public final class EccUtil
extends Object

Crypto Utility.

版本:

2.0

作者:

Jiating 2018-07-18

方法概要

限定符和类型	方法和说明
static KeyPair	createEcKeyPair() Create key pair.
static String	decrypt(String data, ECPrivateKey privateKey) Decryption by key in UTF-8.
static String	encrypt(String data, ECPublicKey ecPublicKey) Encryption by key in UTF-8.
static ECPrivateKey	getPrivateKey(String privateKey) Get private key by string.
static ECPublicKey	getPublicKey(String publicKey) Get public key by string.
static String	sign(String input, PrivateKey privateKey) Sign data.
static boolean	verify(String data, String signMsg, PublicKey publicKey) Verify signature.

从类继承的方法 java.lang.Object

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

方法详细资料

encrypt

public static String encrypt(String data,
                             ECPublicKey ecPublicKey)

Encryption by key in UTF-8.

参数:

data -

ecPublicKey -

返回:

String

getPublicKey

public static ECPublicKey getPublicKey(String publicKey)
                                throws NoSuchAlgorithmException,
                                       InvalidKeySpecException

Get public key by string.

参数:

publicKey -

返回:

ECPublicKey

抛出:

NoSuchAlgorithmException

InvalidKeySpecException

decrypt

public static String decrypt(String data,
                             ECPrivateKey privateKey)

Decryption by key in UTF-8.

参数:

data -

privateKey -

返回:

String

getPrivateKey

public static ECPrivateKey getPrivateKey(String privateKey)
                                  throws NoSuchAlgorithmException,
                                         InvalidKeySpecException

Get private key by string.

参数:

privateKey -

返回:

ECPrivateKey

抛出:

NoSuchAlgorithmException

InvalidKeySpecException

createEcKeyPair

public static KeyPair createEcKeyPair()
                               throws InvalidAlgorithmParameterException,
                                      NoSuchAlgorithmException,
                                      NoSuchProviderException

Create key pair.

Private keypairs are encoded using PKCS8 Private keys are encoded using X.509

返回:

ECKeyPair

抛出:

InvalidAlgorithmParameterException - This is the exception for invalid or inappropriate algorithm parameters.

NoSuchAlgorithmException - This exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.

NoSuchProviderException - This exception is thrown when a particular security provider is requested but is not available in the environment.

sign

public static String sign(String input,
                          PrivateKey privateKey)

Sign data.

参数:

input - source data

privateKey - private key string

返回:

signature

verify

public static boolean verify(String data,
                             String signMsg,
                             PublicKey publicKey)

Verify signature.

参数:

data - source data

signature - signed data

publicKey - public key

返回:

true if pass the validation