cn.tdchain.tdmsp.util

类 EccUtil

java.lang.Object

cn.tdchain.tdmsp.util.EccUtil

public final class EccUtil
extends java.lang.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 java.security.KeyPair	createEcKeyPair() Create key pair.
static java.lang.String	decrypt(java.lang.String data, java.security.interfaces.ECPrivateKey privateKey) Decryption by key in UTF-8.
static java.lang.String	encrypt(java.lang.String data, java.security.interfaces.ECPublicKey ecPublicKey) Encryption by key in UTF-8.
static java.security.interfaces.ECPrivateKey	getPrivateKey(java.lang.String privateKey) Get private key by string.
static java.security.interfaces.ECPublicKey	getPublicKey(java.lang.String publicKey) Get public key by string.
static java.lang.String	sign(java.lang.String input, java.security.PrivateKey privateKey) Sign data.
static boolean	verify(java.lang.String data, java.lang.String signMsg, java.security.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 java.lang.String encrypt(java.lang.String data,
                                       java.security.interfaces.ECPublicKey ecPublicKey)

Encryption by key in UTF-8.

参数:

data - source data

ecPublicKey - public key

返回:

encrypted String

getPublicKey

public static java.security.interfaces.ECPublicKey getPublicKey(java.lang.String publicKey)
                                                         throws java.security.NoSuchAlgorithmException,
                                                                java.security.spec.InvalidKeySpecException

Get public key by string.

参数:

publicKey - ECPublicKey string

返回:

ECPublicKey

抛出:

java.security.NoSuchAlgorithmException - exception

java.security.spec.InvalidKeySpecException - exception

decrypt

public static java.lang.String decrypt(java.lang.String data,
                                       java.security.interfaces.ECPrivateKey privateKey)

Decryption by key in UTF-8.

参数:

data - String

privateKey - private key

返回:

decrypted String

getPrivateKey

public static java.security.interfaces.ECPrivateKey getPrivateKey(java.lang.String privateKey)
                                                           throws java.security.NoSuchAlgorithmException,
                                                                  java.security.spec.InvalidKeySpecException

Get private key by string.

参数:

privateKey - ECPrivateKey string

返回:

ECPrivateKey

抛出:

java.security.NoSuchAlgorithmException - exception

java.security.spec.InvalidKeySpecException - exception

createEcKeyPair

public static java.security.KeyPair createEcKeyPair()
                                             throws java.security.InvalidAlgorithmParameterException,
                                                    java.security.NoSuchAlgorithmException,
                                                    java.security.NoSuchProviderException

Create key pair.

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

返回:

ECKeyPair

抛出:

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

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

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

sign

public static java.lang.String sign(java.lang.String input,
                                    java.security.PrivateKey privateKey)

Sign data.

参数:

input - source data

privateKey - private key string

返回:

signature

verify

public static boolean verify(java.lang.String data,
                             java.lang.String signMsg,
                             java.security.PublicKey publicKey)

Verify signature.

参数:

data -

signMsg -

publicKey -

返回:

boolean