From 62c4eb45e157d502463d797c1353802ca8e1e307 Mon Sep 17 00:00:00 2001 From: sg481n Date: Fri, 25 Aug 2017 01:57:24 -0400 Subject: Update project structure for aaf/cadi Update project structure from com.att to org.onap and add distribution management and staging plugin. Issue-id: AAF-22 Change-Id: Idf2b591139e38921ad28782a51486714a05dee92 Signed-off-by: sg481n --- core/src/main/java/org/onap/aaf/cadi/Hash.java | 202 +++++++++++++++++++++++++ 1 file changed, 202 insertions(+) create mode 100644 core/src/main/java/org/onap/aaf/cadi/Hash.java (limited to 'core/src/main/java/org/onap/aaf/cadi/Hash.java') diff --git a/core/src/main/java/org/onap/aaf/cadi/Hash.java b/core/src/main/java/org/onap/aaf/cadi/Hash.java new file mode 100644 index 0000000..9d8719a --- /dev/null +++ b/core/src/main/java/org/onap/aaf/cadi/Hash.java @@ -0,0 +1,202 @@ +/******************************************************************************* + * ============LICENSE_START==================================================== + * * org.onap.aaf + * * =========================================================================== + * * Copyright © 2017 AT&T Intellectual Property. All rights reserved. + * * =========================================================================== + * * Licensed under the Apache License, Version 2.0 (the "License"); + * * you may not use this file except in compliance with the License. + * * You may obtain a copy of the License at + * * + * * http://www.apache.org/licenses/LICENSE-2.0 + * * + * * Unless required by applicable law or agreed to in writing, software + * * distributed under the License is distributed on an "AS IS" BASIS, + * * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * * See the License for the specific language governing permissions and + * * limitations under the License. + * * ============LICENSE_END==================================================== + * * + * * ECOMP is a trademark and service mark of AT&T Intellectual Property. + * * + ******************************************************************************/ +package org.onap.aaf.cadi; + +import java.nio.ByteBuffer; +import java.security.MessageDigest; +import java.security.NoSuchAlgorithmException; + +public class Hash { + private static char hexDigit[] = "0123456789abcdef".toCharArray(); + +///////////////////////////////// +// MD5 +///////////////////////////////// + /** + * Encrypt MD5 from Byte Array to Byte Array + * @param input + * @return + * @throws NoSuchAlgorithmException + */ + public static byte[] encryptMD5 (byte[] input) throws NoSuchAlgorithmException { + MessageDigest md = MessageDigest.getInstance("MD5"); + md.update(input); + return md.digest(); + } + + /** + * Encrypt MD5 from Byte Array to Byte Array + * @param input + * @return + * @throws NoSuchAlgorithmException + */ + public static byte[] encryptMD5 (byte[] input, int offset, int length) throws NoSuchAlgorithmException { + MessageDigest md = MessageDigest.getInstance("MD5"); + md.update(input,offset,length); + return md.digest(); + } + + + + /** + * Convenience Function: Encrypt MD5 from String to String Hex representation + * + * @param input + * @return + * @throws NoSuchAlgorithmException + */ + public static String encryptMD5asStringHex(String input) throws NoSuchAlgorithmException { + byte[] output = encryptMD5(input.getBytes()); + StringBuilder sb = new StringBuilder("0x"); + for (byte b : output) { + sb.append(hexDigit[(b >> 4) & 0x0f]); + sb.append(hexDigit[b & 0x0f]); + } + return sb.toString(); + } + +///////////////////////////////// +// SHA256 +///////////////////////////////// + /** + * SHA256 Hashing + */ + public static byte[] hashSHA256(byte[] input) throws NoSuchAlgorithmException { + MessageDigest md = MessageDigest.getInstance("SHA-256"); + md.update(input); + return md.digest(); + } + + /** + * SHA256 Hashing + */ + public static byte[] hashSHA256(byte[] input, int offset, int length) throws NoSuchAlgorithmException { + MessageDigest md = MessageDigest.getInstance("SHA-256"); + md.update(input,offset,length); + return md.digest(); + } + + /** + * Convenience Function: Hash from String to String Hex representation + * + * @param input + * @return + * @throws NoSuchAlgorithmException + */ + public static String hashSHA256asStringHex(String input) throws NoSuchAlgorithmException { + byte[] output = hashSHA256(input.getBytes()); + StringBuilder sb = new StringBuilder("0x"); + for (byte b : output) { + sb.append(hexDigit[(b >> 4) & 0x0f]); + sb.append(hexDigit[b & 0x0f]); + } + return sb.toString(); + } + + /** + * Convenience Function: Hash from String to String Hex representation + * + * @param input + * @return + * @throws NoSuchAlgorithmException + */ + public static String hashSHA256asStringHex(String input, int salt) throws NoSuchAlgorithmException { + byte[] in = input.getBytes(); + ByteBuffer bb = ByteBuffer.allocate(Integer.SIZE + in.length); + bb.putInt(salt); + bb.put(input.getBytes()); + byte[] output = Hash.hashSHA256(bb.array()); + StringBuilder sb = new StringBuilder("0x"); + for (byte b : output) { + sb.append(hexDigit[(b >> 4) & 0x0f]); + sb.append(hexDigit[b & 0x0f]); + } + return sb.toString(); + } + + /** + * Compare two byte arrays for equivalency + * @param ba1 + * @param ba2 + * @return + */ + public static boolean isEqual(byte ba1[], byte ba2[]) { + if(ba1.length!=ba2.length)return false; + for(int i = 0;i> 4) & 0x0f]); + sb.append(hexDigit[b & 0x0f]); + } + return sb.toString(); + } + + public static byte[] fromHex(String s) throws CadiException{ + if(!s.startsWith("0x")) { + throw new CadiException("HexString must start with \"0x\""); + } + boolean high = true; + int c; + byte b; + byte[] ba = new byte[(s.length()-2)/2]; + int idx; + for(int i=2;i=0x30 && c<=0x39) { + b=(byte)(c-0x30); + } else if(c>=0x61 && c<=0x66) { + b=(byte)(c-0x57); // account for "A" + } else if(c>=0x41 && c<=0x46) { + b=(byte)(c-0x37); + } else { + throw new CadiException("Invalid char '" + c + "' in HexString"); + } + idx = (i-2)/2; + if(high) { + ba[idx]=(byte)(b<<4); + high = false; + } else { + ba[idx]|=b; + high = true; + } + } + return ba; + } + +} -- cgit 1.2.3-korg