init ut for md5 fingerprint

Author: gy2006

core/src/main/java/com/flowci/core/common/helper/CipherHelper.java

@@ -38,6 +38,8 @@
 import java.util.Base64;
 import javax.crypto.Cipher;
 import javax.crypto.spec.SecretKeySpec;
+
+import org.apache.commons.lang.NotImplementedException;
 import sun.security.util.DerInputStream;
 import sun.security.util.DerValue;
 
@@ -100,6 +102,10 @@ public static String decrypt(String encrypted, String privateKey) {
             }
         }
 
+        public static String fingerprintMd5(String publicKey) {
+            throw new NotImplementedException();
+        }
+
         private static PrivateKey toPrivateKey(String key)
             throws NoSuchAlgorithmException, InvalidKeySpecException, IOException {
             KeyFactory keyFactory = KeyFactory.getInstance("RSA");

core/src/test/java/com/flowci/core/test/common/CipherHelperTest.java

@@ -20,10 +20,16 @@
 import com.flowci.core.common.helper.CipherHelper;
 import com.flowci.core.common.helper.CipherHelper.RSA;
 import com.flowci.domain.SimpleKeyPair;
+import com.flowci.util.StringHelper;
 import com.google.common.base.Strings;
 import org.junit.Assert;
 import org.junit.Test;
 
+import java.io.IOException;
+import java.io.InputStream;
+
+import static com.flowci.core.common.helper.CipherHelper.RSA.fingerprintMd5;
+
 public class CipherHelperTest {
 
     private final String source = "!@#!@#!@1fsd";
@@ -53,4 +59,11 @@ public void should_encrypt_decrypt_by_rsa() {
 
         Assert.assertEquals(source, decrypted);
     }
+
+    @Test
+    public void should_create_public_key_fingerprint() throws IOException {
+        InputStream in = CipherHelper.class.getClassLoader().getResourceAsStream("pk_fingerprint");
+        String publicKey = StringHelper.toString(in);
+        Assert.assertEquals("09:e6:ce:d3:ba:a3:ee:75:9e:96:7b:55:12:85:c6:4e", fingerprintMd5(publicKey));
+    }
 }

core/src/test/resources/pk_fingerprint

@@ -0,0 +1 @@
+ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCl7ATm/Rsk5jj8oQA3wxxqJFyeYHkcRHxzt+cNnfquwRugnnB0Hh8JBMACeG+es/14jI9tErh4oKGzTiEcCTnBe05C3MVNTbvtO6lP6rM4E+bSJwip2jNKYP7Ozofim2xgD55tGDdWQtBdDOiQWGQAvx+JDLPLGlWYoi1CBnC2zzVHtJCq9+eVhHvghDIjuO1+9iJUwkmh+38ABK2wMxugx46qaNHJuF1p/ncQCB9vb5c6mq3lZQH1usujMGWOH0jctoJVzXX8cJapROWPKombl0svO8+GKAG4FuLcrx+W7OSKCweKPgpnCloCp5Up/zzZeheG8gIYpQPiIvEEKLTb [email protected]