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+/*******************************************************************************
+ * ============LICENSE_START====================================================
+ * * org.onap.aai
+ * * ===========================================================================
+ * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * * Copyright © 2017 Amdocs
+ * * ===========================================================================
+ * * 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 com.att.cadi;
+
+import com.att.cadi.taf.TafResp;
+
+
+/**
+ * TAF - Transmutative Assertion Framework.  
+ * 
+ * This main Interface embodies the essential of the assertion, where a number of different TAFs might be used to authenticate
+ * and that authentication to be recognized through other elements.
+ * 
+ * Concept by Robert Garskof.  Implemented by Jonathan Gathman
+ *  
+ *
+ */
+public interface Taf {
+	enum LifeForm {CBLF, SBLF, LFN};
+	/**
+	 * The lifeForm param is a humorous way of describing whether the interaction is proceeding from direct Human Interaction via a browser 
+	 * or App which can directly query a memorized password, key sequence, bio-feedback, from that user, or a machine mechanism for which identity
+	 * can more easily be determined by Certificate, Mechanical ID/Password etc.  Popularized in modern culture and Science Fiction (especially 
+	 * Star Trek), we (starting with Robert Garskof) use the terms "Carbon Based Life Form" (CBLF) for mechanisms with people at the end of them, or 
+	 * "Silicon Based Life Forms" (SBLF) to indicate machine only interactions.  I have added "LFN" for (Life-Form Neutral) to aid identifying
+	 * processes for which it doesn't matter whether there is a human at the immediate end of the chain, or cannot be determined mechanically.  
+	 * 
+	 * The variable parameter is not necessarily ideal, but with too many unknown Tafs to be created, flexibility,
+	 * is unfortunately required at this point.  Future versions could lock this down more.  JG 10/18/2012
+	 * 
+	 * @param lifeForm
+	 * @param info
+	 * @return
+	 */
+	public TafResp validate(LifeForm reading, String ... info);
+	
+}