identity manager (without TEST)

src/main/java/minsecurity/crypto/sm2/SM2Base.java

@@ -166,5 +166,9 @@ public class SM2Base {
         return new ECPublicKeyParameters(ecPubKey.getQ(), domainParameters);
     }
 
+    public static SM2KeyPair generateSM2KeyPair(){
+        return SM2KeyPair.generateKeyPair();
+    }
+
 
 }

src/main/java/minsecurity/crypto/sm2/SM2KeyPair.java

@@ -0,0 +1,41 @@
+package minsecurity.crypto.sm2;
+
+import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
+import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
+import org.bouncycastle.crypto.params.ECPublicKeyParameters;
+
+/*
+ * @Author: hongyu guo
+ * @Description:
+ * @Version: 1.0.0
+ * @Date: 09:57 2021/03/11
+ * @Copyright: MIN-Group；国家重大科技基础设施——未来网络北大实验室；深圳市信息论与未来网络重点实验室
+ */
+public class SM2KeyPair {
+    private final SM2PublicKey sm2PublicKey;
+    private final SM2PrivateKey sm2PrivateKey;
+
+    public SM2KeyPair(SM2PublicKey sm2PublicKey, SM2PrivateKey sm2PrivateKey) {
+        this.sm2PublicKey = sm2PublicKey;
+        this.sm2PrivateKey = sm2PrivateKey;
+    }
+
+    public static SM2KeyPair generateKeyPair(){
+        AsymmetricCipherKeyPair keyPair = SM2Base.generateKeyPairParameter();
+        ECPrivateKeyParameters priKey = (ECPrivateKeyParameters) keyPair.getPrivate();
+        ECPublicKeyParameters pubKey = (ECPublicKeyParameters) keyPair.getPublic();
+        byte[] d = priKey.getD().toByteArray();
+        byte[] x = pubKey.getQ().getAffineXCoord().getEncoded();
+        byte[] y = pubKey.getQ().getAffineYCoord().getEncoded();
+        return new SM2KeyPair(new SM2PublicKey(x,y), new SM2PrivateKey(d));
+    }
+
+
+    public SM2PublicKey getSm2PublicKey() {
+        return sm2PublicKey;
+    }
+
+    public SM2PrivateKey getSm2PrivateKey() {
+        return sm2PrivateKey;
+    }
+}