package?co.junwei.bswabe;

import?it.unisa.dia.gas.jpbc.CurveParameters;
import?it.unisa.dia.gas.jpbc.Element;
import?it.unisa.dia.gas.jpbc.Pairing;
import?it.unisa.dia.gas.plaf.jpbc.pairing.DefaultCurveParameters;
import?it.unisa.dia.gas.plaf.jpbc.pairing.PairingFactory;

import?java.io.ByteArrayInputStream;
import?java.security.MessageDigest;
import?java.security.NoSuchAlgorithmException;
import?java.util.ArrayList;
import?java.util.Collections;
import?java.util.Comparator;

public?class?Bswabe?{

	/*
	?*?Generate?a?public?key?and?corresponding?master?secret?key.
	?*/

	private?static?String?curveParams?=?“type?a\n“
			+?“q?87807107996633125224377819847540498158068831994142082“
			+?“1102865339926647563088022295707862517942266222142315585“
			+?“8769582317459277713367317481324925129998224791\n“
			+?“h?12016012264891146079388821366740534204802954401251311“
			+?“822919615131047207289359704531102844802183906537786776\n“
			+?“r?730750818665451621361119245571504901405976559617\n“
			+?“exp2?159\n“?+?“exp1?107\n“?+?“sign1?1\n“?+?“sign0?1\n“;

	public?static?void?setup（BswabePub?pub?BswabeMsk?msk）?{
		Element?alpha?beta_inv;

		CurveParameters?params?=?new?DefaultCurveParameters（）
				.load（new?ByteArrayInputStream（curveParams.getBytes（）））;

		pub.pairingDesc?=?curveParams;
		pub.p?=?PairingFactory.getPairing（params）;
		Pairing?pairing?=?pub.p;

		pub.g?=?pairing.getG1（）.newElement（）;
		pub.f?=?pairing.getG1（）.newElement（）;
		pub.h?=?pairing.getG1（）.newElement（）;
		pub.gp?=?pairing.getG2（）.newElement（）;
		pub.g_hat_alpha?=?pairing.getGT（）.newElement（）;
		alpha?=?pairing.getZr（）.newElement（）;
		msk.beta?=?pairing.getZr（）.newElement（）;
		msk.g_alpha?=?pairing.getG2（）.newElement（）;

		alpha.setToRandom（）;
		msk.beta.setToRandom（）;
		pub.g.setToRandom（）;
		pub.gp.setToRandom（）;

		msk.g_alpha?=?pub.gp.duplicate（）;
		msk.g_alpha.powZn（alpha）;

		beta_inv?=?msk.beta.duplicate（）;
		beta_inv.invert（）;
		pub.f?=?pub.g.duplicate（）;
		pub.f.powZn（beta_inv）;

		pub.h?=?pub.g.duplicate（）;
		pub.h.powZn（msk.beta）;

		pub.g_hat_alpha?=?pairing.pairing（pub.g?msk.g_alpha）;
	}

	/*
	?*?Generate?a?private?key?with?the?given?set?of?attributes.
	?*/
	public?static?BswabePrv?keygen（BswabePub?pub?BswabeMsk?msk?String[]?attrs）
			throws?NoSuchAlgorithmException?{
		BswabePrv?prv?=?new?BswabePrv（）;
		Element?g_r?r?beta_inv;
		Pairing?pairing;

		/*?initialize?*/
		pairing?=?pub.p;
		prv.d?=?pairing.getG2（）.newElement（）;
		g_r?=?pairing.getG2（）.newElement（）;
		r?=?pairing.getZr（）.newElement（）;
		beta_inv?=?pairing.getZr（）.newElement（）;

		/*?compute?*/
		r.setToRandom（）;
		g_r?=?pub.gp.duplicate（）;
		g_r.powZn（r）;

		prv.d?=?msk.g_alpha.duplicate（）;
		prv.d.mul（g_r）;
		beta_inv?=?msk.beta.duplicate（）;
		beta_inv.invert（）;
		prv.d.powZn（beta_inv）;

		int?i?len?=?attrs.length;
		prv.comps?=?new?ArrayList（）;
		for?（i?=?0;?i?			BswabePrvComp?comp?=?new?BswabePrvComp（）;
			Element?h_rp;
			Element?rp;

			comp.attr?=?attrs[i];

			comp.d?=?pa

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????????17??2018-03-21?00:50??cpabe\.gitignore

?????文件??????????5??2018-09-17?15:20??cpabe\.idea\.name

?????文件????????758??2018-09-17?15:21??cpabe\.idea\compiler.xml

?????文件????????305??2018-09-17?15:21??cpabe\.idea\encodings.xml

?????文件????????443??2018-09-17?15:21??cpabe\.idea\misc.xml

?????文件????????496??2018-09-17?15:21??cpabe\.idea\modules.xml

?????文件??????21430??2018-09-21?08:48??cpabe\.idea\workspace.xml

?????文件????????483??2018-03-21?00:50??cpabe\AUTHORS.md

?????文件????????460??2018-03-21?00:50??cpabe\BUILD.md

?????文件??????15127??2018-03-21?00:50??cpabe\COPYING

?????文件???????1224??2018-09-17?15:21??cpabe\cpabe-api\cpabe-api.iml

?????文件??????????0??2018-03-21?00:50??cpabe\cpabe-api\lib\.gitkeep

?????文件???????8272??2018-03-21?00:50??cpabe\cpabe-api\lib\jpbc-api-1.2.1.jar

?????文件?????213238??2018-03-21?00:50??cpabe\cpabe-api\lib\jpbc-plaf-1.2.1.jar

?????文件???????1177??2018-03-21?00:50??cpabe\cpabe-api\pom.xml

?????文件??????15798??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\Bswabe.java

?????文件????????436??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabeCph.java

?????文件????????221??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabeCphKey.java

?????文件????????235??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabeElementBoolean.java

?????文件????????194??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabeMsk.java

?????文件????????616??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabePolicy.java

?????文件????????203??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabePolynomial.java

?????文件????????223??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabePrv.java

?????文件????????293??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabePrvComp.java

?????文件????????374??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\BswabePub.java

?????文件???????7967??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\bswabe\SerializeUtils.java

?????文件???????1284??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\cpabe\AESCoder.java

?????文件???????3099??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\cpabe\Common.java

?????文件???????3535??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\cpabe\Cpabe.java

?????文件???????8263??2018-03-21?00:50??cpabe\cpabe-api\src\main\java\co\junwei\cpabe\policy\ALangPolicy.y

............此處省略100個文件信息