cn.bitfactory.encryption.utils.sm2

类 SM2

java.lang.Object

cn.bitfactory.encryption.utils.sm2.SM2

public class SM2
extends Object

SM2公钥加密算法实现 包括 -密钥对生成 -签名,验签

作者:

Yangwei

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	SM2.Signature

字段概要

字段

限定符和类型	字段和说明
static org.bouncycastle.math.ec.ECCurve.Fp	curve
static org.bouncycastle.math.ec.ECPoint	G

构造器概要

构造器

构造器和说明
SM2()

方法概要

限定符和类型	方法和说明
static BigInteger	bigIntegerPreHandle(BigInteger bigInteger)
SM2KeyPair	generateKeyPair() 生成密钥对
static byte[]	getRawPubKey(org.bouncycastle.math.ec.ECPoint pubKey)
static byte[]	getRawPubKey(SM2KeyPair sm2KeyPair)
static byte[]	getRawSkey(SM2KeyPair sm2KeyPair)
static SM2KeyPair	getSM2KeyPair()
static SM2.Signature	sign(String M, String IDA, SM2KeyPair keyPair) 签名
static byte[]	signWithBytes(String M, String IDA, SM2KeyPair keyPair) 签名
static boolean	verify(byte[] msg, byte[] sign, KeyMember member)
static boolean	verify(String M, byte[] signature, String IDA, org.bouncycastle.math.ec.ECPoint aPublicKey) 验签
static boolean	verify(String M, SM2.Signature signature, String IDA, org.bouncycastle.math.ec.ECPoint aPublicKey) 验签

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

curve

public static org.bouncycastle.math.ec.ECCurve.Fp curve

G

public static org.bouncycastle.math.ec.ECPoint G

构造器详细资料

SM2

public SM2()

方法详细资料

generateKeyPair

public SM2KeyPair generateKeyPair()

生成密钥对

返回:

sign

public static SM2.Signature sign(String M,
                                 String IDA,
                                 SM2KeyPair keyPair)
                          throws UnsupportedEncodingException

签名

参数:

M - 签名信息

IDA - 签名方唯一标识

keyPair - 签名方密钥对

返回:

签名

抛出:

UnsupportedEncodingException

signWithBytes

public static byte[] signWithBytes(String M,
                                   String IDA,
                                   SM2KeyPair keyPair)
                            throws UnsupportedEncodingException

签名

参数:

M - 签名信息

IDA - 签名方唯一标识

keyPair - 签名方密钥对

返回:

签名字节数组

抛出:

UnsupportedEncodingException

verify

public static boolean verify(String M,
                             SM2.Signature signature,
                             String IDA,
                             org.bouncycastle.math.ec.ECPoint aPublicKey)
                      throws UnsupportedEncodingException

验签

参数:

M - 签名信息

signature - 签名

IDA - 签名方唯一标识

aPublicKey - 签名方公钥

返回:

true or false

抛出:

UnsupportedEncodingException

verify

public static boolean verify(String M,
                             byte[] signature,
                             String IDA,
                             org.bouncycastle.math.ec.ECPoint aPublicKey)
                      throws UnsupportedEncodingException

验签

参数:

M - 签名信息

signature - 签名

IDA - 签名方唯一标识

aPublicKey - 签名方公钥

返回:

true or false

抛出:

UnsupportedEncodingException

verify

public static boolean verify(byte[] msg,
                             byte[] sign,
                             KeyMember member)
                      throws UnsupportedEncodingException

抛出:

UnsupportedEncodingException

bigIntegerPreHandle

public static BigInteger bigIntegerPreHandle(BigInteger bigInteger)

getRawPubKey

public static byte[] getRawPubKey(org.bouncycastle.math.ec.ECPoint pubKey)

getSM2KeyPair

public static SM2KeyPair getSM2KeyPair()

getRawSkey

public static byte[] getRawSkey(SM2KeyPair sm2KeyPair)

getRawPubKey

public static byte[] getRawPubKey(SM2KeyPair sm2KeyPair)