cn.ponfee.commons.jce.sm

类 SM2

java.lang.Object

cn.ponfee.commons.jce.sm.SM2

public final class SM2
extends Object

基于椭圆曲线 new BigInteger("0") // 0为十进制数字符串表示 SM2 asymmetric cipher implementation support encrypt/decrypt and sign/verify signature reference the internet code and refactor optimization

作者:

Ponfee

字段概要

字段

限定符和类型	字段和说明
static String	PRIVATE_KEY
static String	PUBLIC_KEY

方法概要

限定符和类型	方法和说明
static boolean	checkPublicKey(byte[] publicKey)
static boolean	checkPublicKey(ECParameters ecParam, byte[] publicKey)
static boolean	checkPublicKey(ECParameters ecParam, org.bouncycastle.math.ec.ECPoint publicKey)
static boolean	checkPublicKey(org.bouncycastle.math.ec.ECPoint publicKey)
static byte[]	decrypt(byte[] privateKey, byte[] encrypted)
static byte[]	decrypt(ECParameters ecParam, byte[] privateKey, byte[] encrypted) decrypt the encrypted byte array data by private key
static byte[]	encrypt(byte[] publicKey, byte[] data)
static byte[]	encrypt(ECParameters ecParam, byte[] publicKey, byte[] data) encrypt data by public key
static Map<String,byte[]>	generateKeyPair()
static Map<String,byte[]>	generateKeyPair(ECParameters ecParam) generate the SM2 key pair a public key and a private key
static BigInteger	getPrivateKey(byte[] privateKey)
static byte[]	getPrivateKey(Map<String,byte[]> keyMap)
static org.bouncycastle.math.ec.ECPoint	getPublicKey(byte[] publicKey)
static org.bouncycastle.math.ec.ECPoint	getPublicKey(ECParameters ecParam, byte[] publicKey)
static byte[]	getPublicKey(Map<String,byte[]> keyMap)
static byte[]	sign(byte[] data, byte[] publicKey, byte[] privateKey)
static byte[]	sign(byte[] data, byte[] ida, byte[] publicKey, byte[] privateKey)
static byte[]	sign(ECParameters ecParam, byte[] data, byte[] publicKey, byte[] privateKey)
static byte[]	sign(ECParameters ecParam, byte[] data, byte[] ida, byte[] publicKey, byte[] privateKey) sm2 sign
static boolean	verify(byte[] data, byte[] signed, byte[] publicKey)
static boolean	verify(byte[] data, byte[] ida, byte[] signed, byte[] publicKey)
static boolean	verify(ECParameters ecParam, byte[] data, byte[] signed, byte[] publicKey)
static boolean	verify(ECParameters ecParam, byte[] data, byte[] ida, byte[] signed, byte[] publicKey) verify signature

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

PRIVATE_KEY

public static final String PRIVATE_KEY

另请参阅:

常量字段值

PUBLIC_KEY

public static final String PUBLIC_KEY

另请参阅:

常量字段值

方法详细资料

generateKeyPair

public static Map<String,byte[]> generateKeyPair()

generateKeyPair

public static Map<String,byte[]> generateKeyPair(ECParameters ecParam)

generate the SM2 key pair a public key and a private key

参数:

ecParam - the ec parameter

返回:

sm2 key store the map

getPublicKey

public static byte[] getPublicKey(Map<String,byte[]> keyMap)

getPrivateKey

public static byte[] getPrivateKey(Map<String,byte[]> keyMap)

getPublicKey

public static org.bouncycastle.math.ec.ECPoint getPublicKey(byte[] publicKey)

getPublicKey

public static org.bouncycastle.math.ec.ECPoint getPublicKey(ECParameters ecParam,
                                                            byte[] publicKey)

getPrivateKey

public static BigInteger getPrivateKey(byte[] privateKey)

encrypt

public static byte[] encrypt(byte[] publicKey,
                             byte[] data)

encrypt

public static byte[] encrypt(ECParameters ecParam,
                             byte[] publicKey,
                             byte[] data)

encrypt data by public key

参数:

ecParam - the ec parameter

publicKey - SM2 public key, point K = [k]POINT_G

data - the data to be encrypt

返回:

encrypted byte array

decrypt

public static byte[] decrypt(byte[] privateKey,
                             byte[] encrypted)

decrypt

public static byte[] decrypt(ECParameters ecParam,
                             byte[] privateKey,
                             byte[] encrypted)

decrypt the encrypted byte array data by private key

参数:

ecParam - the ec parameter

privateKey - SM2 private key

encrypted - the encrypted byte array data

返回:

the origin byte array data

sign

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

sign

public static byte[] sign(byte[] data,
                          byte[] ida,
                          byte[] publicKey,
                          byte[] privateKey)

sign

public static byte[] sign(ECParameters ecParam,
                          byte[] data,
                          byte[] publicKey,
                          byte[] privateKey)

sign

public static byte[] sign(ECParameters ecParam,
                          byte[] data,
                          byte[] ida,
                          byte[] publicKey,
                          byte[] privateKey)

sm2 sign

参数:

ecParam - the ec parameter

data - 签名信息

ida - 签名方唯一标识，如：Alice@gmail.com

publicKey - 公钥

privateKey - 私钥

返回:

签名信息

verify

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

verify

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

verify

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

verify

public static boolean verify(ECParameters ecParam,
                             byte[] data,
                             byte[] ida,
                             byte[] signed,
                             byte[] publicKey)

verify signature

参数:

ecParam - the ec parameter

data -

ida -

signed -

publicKey -

返回:

checkPublicKey

public static boolean checkPublicKey(byte[] publicKey)

checkPublicKey

public static boolean checkPublicKey(ECParameters ecParam,
                                     byte[] publicKey)

checkPublicKey

public static boolean checkPublicKey(org.bouncycastle.math.ec.ECPoint publicKey)

checkPublicKey

public static boolean checkPublicKey(ECParameters ecParam,
                                     org.bouncycastle.math.ec.ECPoint publicKey)