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-rw-r--r--security-utils/src/main/java/org/openecomp/sdc/security/Passwords.java36
-rw-r--r--security-utils/src/main/java/org/openecomp/sdc/security/SecurityUtil.java155
2 files changed, 186 insertions, 5 deletions
diff --git a/security-utils/src/main/java/org/openecomp/sdc/security/Passwords.java b/security-utils/src/main/java/org/openecomp/sdc/security/Passwords.java
index ef424b95de..5f5e00722e 100644
--- a/security-utils/src/main/java/org/openecomp/sdc/security/Passwords.java
+++ b/security-utils/src/main/java/org/openecomp/sdc/security/Passwords.java
@@ -20,6 +20,9 @@
package org.openecomp.sdc.security;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
import java.math.BigInteger;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
@@ -27,8 +30,10 @@ import java.security.SecureRandom;
import java.util.Arrays;
import java.util.Random;
+
public class Passwords {
+ private static Logger log = LoggerFactory.getLogger( Passwords.class.getName());
private static final Random RANDOM = new SecureRandom();
private static final int SALT = 0;
private static final int HASH = 1;
@@ -47,13 +52,14 @@ public class Passwords {
* @return a "salt:hash" value
*/
public static String hashPassword(String password) {
- byte[] salt = getNextSalt();
- byte byteData[] = hash(salt, password.getBytes());
- if (byteData != null) {
- return toHex(salt) + ":" + toHex(byteData);
+ if (password!=null){
+ byte[] salt = getNextSalt();
+ byte byteData[] = hash(salt, password.getBytes());
+ if (byteData != null) {
+ return toHex(salt) + ":" + toHex(byteData);
+ }
}
return null;
-
}
/**
@@ -64,6 +70,15 @@ public class Passwords {
* @return
*/
public static boolean isExpectedPassword(String password, String expectedHash) {
+ if (password==null && expectedHash==null)
+ return true;
+ if (password==null || expectedHash==null) //iff exactly 1 is null
+ return false;
+ if (!expectedHash.contains(":")){
+ log.error("invalid password expecting hash at the prefix of the password (ex. e0277df331f4ff8f74752ac4a8fbe03b:6dfbad308cdf53c9ff2ee2dca811ee92f1b359586b33027580e2ff92578edbd0)\n" +
+ "\t\t\t");
+ return false;
+ }
String[] params = expectedHash.split(":");
return isExpectedPassword(password, params[SALT], params[HASH]);
}
@@ -78,6 +93,15 @@ public class Passwords {
* @return true if the password matched the hash
*/
public static boolean isExpectedPassword(String password, String salt, String hash) {
+ if ( password == null && hash == null )
+ return true;
+ if ( salt == null ){
+ log.error("salt must be initialized");
+ return false;
+ }
+ //unintialized params
+ if ( password == null || hash == null )
+ return false;
byte[] saltBytes = fromHex(salt);
byte[] hashBytes = fromHex(hash);
@@ -137,6 +161,8 @@ public class Passwords {
* @return the hex string decoded into a byte array
*/
private static byte[] fromHex(String hex) {
+ if ( hex == null )
+ return null;
byte[] binary = new byte[hex.length() / 2];
for (int i = 0; i < binary.length; i++) {
binary[i] = (byte) Integer.parseInt(hex.substring(2 * i, 2 * i + 2), 16);
diff --git a/security-utils/src/main/java/org/openecomp/sdc/security/SecurityUtil.java b/security-utils/src/main/java/org/openecomp/sdc/security/SecurityUtil.java
new file mode 100644
index 0000000000..892c29b88f
--- /dev/null
+++ b/security-utils/src/main/java/org/openecomp/sdc/security/SecurityUtil.java
@@ -0,0 +1,155 @@
+package org.openecomp.sdc.security;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.spec.SecretKeySpec;
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
+import java.security.InvalidKeyException;
+import java.security.Key;
+import java.security.NoSuchAlgorithmException;
+import java.util.Base64;
+import fj.data.*;
+
+public class SecurityUtil {
+
+ private static final Logger LOG = LoggerFactory.getLogger( SecurityUtil.class );
+ private static final byte[] KEY = new byte[]{-64,5,-32 ,-117 ,-44,8,-39, 1, -9, 36,-46,-81, 62,-15,-63,-75};
+ public static final SecurityUtil INSTANCE = new SecurityUtil();
+ public static final String ALGORITHM = "AES" ;
+ public static final String CHARSET = StandardCharsets.UTF_8.name();
+
+ public static Key secKey = null ;
+
+ /**
+ *
+ * cmd commands >$PROGRAM_NAME decrypt "$ENCRYPTED_MSG"
+ * >$PROGRAM_NAME encrypt "message"
+ **/
+ public static void main(String[] args) throws Exception {
+ if ( args!=null && args.length>1){
+ fj.data.Either res = null;
+ final String op = args[0].trim().toLowerCase();
+ try{
+ switch(op) {
+ case "decrypt":
+ res = INSTANCE.decrypt(Base64.getDecoder().decode(args[1]), true);
+ break;
+ case "encrypt":
+ res = INSTANCE.encrypt(args[1]);
+ break;
+ default:
+ LOG.warn("Unfamiliar command please use: \n>aes <encrypt/decrypt> 'message to encrypt/decrypt' ");
+ }
+ }catch(Exception e){
+ LOG.debug( "cannot perform {}:" );
+ throw e;
+ }
+ LOG.debug( "output: {}", res!=null && res.isLeft() ? res.left().value() : "ERROR" );
+ }
+ }
+
+ private SecurityUtil(){ super(); }
+
+ static {
+ try{
+ secKey = generateKey( KEY, ALGORITHM );
+ }
+ catch(Exception e){
+ LOG.warn("cannot generate key for {}", ALGORITHM);
+ }
+ }
+
+
+
+ public static Key generateKey(final byte[] KEY, String algorithm){
+ return new SecretKeySpec(KEY, algorithm);
+ }
+
+ //obfuscates key prefix -> **********
+ public String obfuscateKey(String sensitiveData){
+
+ if (sensitiveData != null){
+ int len = sensitiveData.length();
+ StringBuilder builder = new StringBuilder(sensitiveData);
+ for (int i=0; i<len/2; i++){
+ builder.setCharAt(i, '*');
+ }
+ return builder.toString();
+ }
+ return sensitiveData;
+ }
+
+ /**
+ * @param strDataToEncrypt - plain string to encrypt
+ * Encrypt the Data
+ * a. Declare / Initialize the Data. Here the data is of type String
+ * b. Convert the Input Text to Bytes
+ * c. Encrypt the bytes using doFinal method
+ */
+ public Either<String,String> encrypt(String strDataToEncrypt){
+ if (strDataToEncrypt != null ){
+ try {
+ LOG.debug("Encrypt key -> {}", secKey);
+ Cipher aesCipherForEncryption = Cipher.getInstance("AES"); // Must specify the mode explicitly as most JCE providers default to ECB mode!!
+ aesCipherForEncryption.init(Cipher.ENCRYPT_MODE, secKey);
+ byte[] byteDataToEncrypt = strDataToEncrypt.getBytes();
+ byte[] byteCipherText = aesCipherForEncryption.doFinal(byteDataToEncrypt);
+ String strCipherText = new String( java.util.Base64.getMimeEncoder().encode(byteCipherText), CHARSET );
+ LOG.debug("Cipher Text generated using AES is {}", strCipherText);
+ return Either.left(strCipherText);
+ } catch( NoSuchAlgorithmException | UnsupportedEncodingException e){
+ LOG.warn( "cannot encrypt data unknown algorithm or missing encoding for {}" ,secKey.getAlgorithm());
+ } catch( InvalidKeyException e){
+ LOG.warn( "invalid key recieved - > {} | {}" , java.util.Base64.getDecoder().decode( secKey.getEncoded() ), e.getMessage() );
+ } catch( IllegalBlockSizeException | BadPaddingException | NoSuchPaddingException e){
+ LOG.warn( "bad algorithm definition (Illegal Block Size or padding), please review you algorithm block&padding" , e.getMessage() );
+ }
+ }
+ return Either.right("Cannot encrypt "+strDataToEncrypt);
+ }
+
+ /**
+ * Decrypt the Data
+ * @param byteCipherText - should be valid bae64 input in the length of 16bytes
+ * @param isBase64Decoded - is data already base64 encoded&aligned to 16 bytes
+ * a. Initialize a new instance of Cipher for Decryption (normally don't reuse the same object)
+ * b. Decrypt the cipher bytes using doFinal method
+ */
+ public Either<String,String> decrypt(byte[] byteCipherText , boolean isBase64Decoded){
+ if (byteCipherText != null){
+ byte[] alignedCipherText = byteCipherText;
+ try{
+ if (isBase64Decoded)
+ alignedCipherText = Base64.getDecoder().decode(byteCipherText);
+ LOG.debug("Decrypt key -> "+secKey.getEncoded());
+ Cipher aesCipherForDecryption = Cipher.getInstance("AES"); // Must specify the mode explicitly as most JCE providers default to ECB mode!!
+ aesCipherForDecryption.init(Cipher.DECRYPT_MODE, secKey);
+ byte[] byteDecryptedText = aesCipherForDecryption.doFinal(alignedCipherText);
+ String strDecryptedText = new String(byteDecryptedText);
+ LOG.debug("Decrypted Text message is: {}" , obfuscateKey( strDecryptedText ));
+ return Either.left(strDecryptedText);
+ } catch( NoSuchAlgorithmException e){
+ LOG.warn( "cannot encrypt data unknown algorithm or missing encoding for {}" ,secKey.getAlgorithm());
+ } catch( InvalidKeyException e){
+ LOG.warn( "invalid key recieved - > {} | {}" , java.util.Base64.getDecoder().decode( secKey.getEncoded() ), e.getMessage() );
+ } catch( IllegalBlockSizeException | BadPaddingException | NoSuchPaddingException e){
+ LOG.warn( "bad algorithm definition (Illegal Block Size or padding), please review you algorithm block&padding" , e.getMessage() );
+ }
+ }
+ return Either.right("Decrypt FAILED");
+ }
+
+ public Either<String,String> decrypt(String byteCipherText){
+ try {
+ return decrypt(byteCipherText.getBytes(CHARSET),true);
+ } catch( UnsupportedEncodingException e ){
+ LOG.warn( "Missing encoding for {} | {} " ,secKey.getAlgorithm() , e.getMessage());
+ }
+ return Either.right("Decrypt FAILED");
+ }
+}