1 files changed, 149 insertions, 0 deletions
diff --git a/sparkybe-onap-service/src/main/java/org/onap/aai/sparky/util/EncryptConvertor.java b/sparkybe-onap-service/src/main/java/org/onap/aai/sparky/util/EncryptConvertor.java
new file mode 100644
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--- /dev/null
+++ b/sparkybe-onap-service/src/main/java/org/onap/aai/sparky/util/EncryptConvertor.java
@@ -0,0 +1,149 @@
+/**
+ * ============LICENSE_START===================================================
+ * SPARKY (AAI UI service)
+ * ============================================================================
+ * Copyright © 2017 AT&T Intellectual Property.
+ * Copyright © 2017 Amdocs
+ * 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 and OpenECOMP are trademarks
+ * and service marks of AT&T Intellectual Property.
+ */
+package org.onap.aai.sparky.util;
+
+/**
+ * The Class EncryptConvertor.
+ */
+public class EncryptConvertor {
+
+  private static final char[] HEX_CHARS = "0123456789abcdef".toCharArray();
+
+  /**
+   * toHexString(String) - convert a string into its hex equivalent.
+   *
+   * @param buf the buf
+   * @return the string
+   */
+  public static final String toHexString(String buf) {
+    if (buf == null) {
+      return "";
+    }
+    return toHexString(buf.getBytes());
+  }
+
+  /**
+   * toHexString(byte[]) - convert a byte-string into its hex equivalent.
+   *
+   * @param buf the buf
+   * @return the string
+   */
+  public static final String toHexString(byte[] buf) {
+
+    if (buf == null) {
+      return "";
+    }
+    char[] chars = new char[2 * buf.length];
+    for (int i = 0; i < buf.length; ++i) {
+      chars[2 * i] = HEX_CHARS[(buf[i] & 0xF0) >>> 4];
+      chars[2 * i + 1] = HEX_CHARS[buf[i] & 0x0F];
+    }
+    return new String(chars);
+  }
+
+  /**
+   * Convert a hex string to its equivalent value.
+   *
+   * @param hexString the hex string
+   * @return the string
+   * @throws Exception the exception
+   */
+  public static final String stringFromHex(String hexString) throws Exception {
+    if (hexString == null) {
+      return "";
+    }
+    return stringFromHex(hexString.toCharArray());
+  }
+
+  /**
+   * String from hex.
+   *
+   * @param hexCharArray the hex char array
+   * @return the string
+   * @throws Exception the exception
+   */
+  public static final String stringFromHex(char[] hexCharArray) throws Exception {
+    if (hexCharArray == null) {
+      return "";
+    }
+    return new String(bytesFromHex(hexCharArray));
+  }
+
+  /**
+   * Bytes from hex.
+   *
+   * @param hexString the hex string
+   * @return the byte[]
+   * @throws Exception the exception
+   */
+  public static final byte[] bytesFromHex(String hexString) throws Exception {
+    if (hexString == null) {
+      return new byte[0];
+    }
+    return bytesFromHex(hexString.toCharArray());
+  }
+
+  /**
+   * Bytes from hex.
+   *
+   * @param hexCharArray the hex char array
+   * @return the byte[]
+   * @throws Exception the exception
+   */
+  public static final byte[] bytesFromHex(char[] hexCharArray) throws Exception {
+    if (hexCharArray == null) {
+      return new byte[0];
+    }
+    int len = hexCharArray.length;
+    if ((len % 2) != 0) {
+      throw new Exception("Odd number of characters: '" + String.valueOf(hexCharArray) + "'");
+    }
+    byte[] txtInByte = new byte[len / 2];
+    int counter = 0;
+    for (int i = 0; i < len; i += 2) {
+      txtInByte[counter++] =
+          (byte) (((fromHexDigit(hexCharArray[i], i) << 4) | fromHexDigit(hexCharArray[i + 1], i))
+              & 0xFF);
+    }
+    return txtInByte;
+  }
+
+  /**
+   * From hex digit.
+   *
+   * @param ch the ch
+   * @param index the index
+   * @return the int
+   * @throws Exception the exception
+   */
+  protected static final int fromHexDigit(char ch, int index) throws Exception {
+    int digit = Character.digit(ch, 16);
+    if (digit == -1) {
+      throw new Exception("Illegal hex character '" + ch + "' at index " + index);
+    }
+    return digit;
+  }
+
+}