package?com.security.cipher.sm;

import?java.math.BigInteger;

import?org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import?org.bouncycastle.crypto.params.ECPrivateKeyParameters;
import?org.bouncycastle.crypto.params.ECPublicKeyParameters;
import?org.bouncycastle.math.ec.ECPoint;

public?class?Cipher?
{
	private?int?ct;
	private?ECPoint?p2;
	private?SM3Digest?sm3keybase;
	private?SM3Digest?sm3c3;
	private?byte?key[];
	private?byte?keyOff;

	public?Cipher（）?
	{
		this.ct?=?1;
		this.key?=?new?byte[32];
		this.keyOff?=?0;
	}

	private?void?Reset（）?
	{
		this.sm3keybase?=?new?SM3Digest（）;
		this.sm3c3?=?new?SM3Digest（）;
		
		byte?p[]?=?Util.byteConvert32Bytes（p2.getX（）.toBigInteger（））;
		this.sm3keybase.update（p?0?p.length）;
		this.sm3c3.update（p?0?p.length）;
		
		p?=?Util.byteConvert32Bytes（p2.getY（）.toBigInteger（））;
		this.sm3keybase.update（p?0?p.length）;
		this.ct?=?1;
		NextKey（）;
	}

	private?void?NextKey（）?
	{
		SM3Digest?sm3keycur?=?new?SM3Digest（this.sm3keybase）;
		sm3keycur.update（（byte）?（ct?>>?24?&?0xff））;
		sm3keycur.update（（byte）?（ct?>>?16?&?0xff））;
		sm3keycur.update（（byte）?（ct?>>?8?&?0xff））;
		sm3keycur.update（（byte）?（ct?&?0xff））;
		sm3keycur.doFinal（key?0）;
		this.keyOff?=?0;
		this.ct++;
	}

	public?ECPoint?Init_enc（SM2?sm2?ECPoint?userKey）?
	{
		AsymmetricCipherKeyPair?key?=?sm2.ecc_key_pair_generator.generateKeyPair（）;
		ECPrivateKeyParameters?ecpriv?=?（ECPrivateKeyParameters）?key.getPrivate（）;
		ECPublicKeyParameters?ecpub?=?（ECPublicKeyParameters）?key.getPublic（）;
		BigInteger?k?=?ecpriv.getD（）;
		ECPoint?c1?=?ecpub.getQ（）;
		this.p2?=?userKey.multiply（k）;
		Reset（）;
		return?c1;
	}

	public?void?Encrypt（byte?data[]）?
	{
		this.sm3c3.update（data?0?data.length）;
		for?（int?i?=?0;?i?		{
			if?（keyOff?==?key.length）
			{
				NextKey（）;
			}
			data[i]?^=?key[keyOff++];
		}
	}

	public?void?Init_dec（BigInteger?userD?ECPoint?c1）
	{
		this.p2?=?c1.multiply（userD）;
		Reset（）;
	}

	public?void?Decrypt（byte?data[]）?
	{
		for?（int?i?=?0;?i?		{
			if?（keyOff?==?key.length）
			{
				NextKey（）;
			}
			data[i]?^=?key[keyOff++];
		}

		this.sm3c3.update（data?0?data.length）;
	}

	public?void?Dofinal（byte?c3[]）?
	{
		byte?p[]?=?Util.byteConvert32Bytes（p2.getY（）.toBigInteger（））;
		this.sm3c3.update（p?0?p.length）;
		this.sm3c3.doFinal（c3?0）;
		Reset（）;
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-12-15?15:25??（SM2_SM3_SM4）國密算法java源代碼+PC工具\
?????目錄???????????0??2017-12-15?15:25??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\
?????目錄???????????0??2017-12-15?15:22??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\
?????目錄???????????0??2017-12-15?15:21??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\
?????目錄???????????0??2017-12-15?15:21??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\
?????目錄???????????0??2017-12-15?15:21??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\
?????文件????????2461??2017-12-14?21:09??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\Cipher.java
?????文件????????6407??2017-12-14?23:55??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM2.java
?????文件?????????409??2017-12-14?21:04??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM2Result.java
?????文件???????10106??2017-12-15?15:03??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM2Utils.java
?????文件????????8083??2017-12-14?21:06??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM3.java
?????文件????????3068??2017-12-14?21:05??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM3Digest.java
?????文件????????9784??2017-12-14?21:09??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM4.java
?????文件????????5042??2017-12-15?15:16??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM4Utils.java
?????文件?????????246??2017-12-14?22:15??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\SM4_Context.java
?????文件???????18288??2017-12-14?21:08??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\com\security\cipher\sm\Util.java
?????目錄???????????0??2017-12-15?15:24??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\libs\
?????文件?????1651965??2017-12-13?23:55??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\libs\bcprov-jdk14-143.jar
?????文件????????7471??2017-03-30?10:14??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\libs\sun.misc.base64Decoder.jar
?????文件?????????160??2017-12-15?15:28??（SM2_SM3_SM4）國密算法java源代碼+PC工具\java源碼+jar包\說明.txt
?????目錄???????????0??2017-12-15?15:25??（SM2_SM3_SM4）國密算法java源代碼+PC工具\PC工具\
?????目錄???????????0??2017-12-15?15:25??（SM2_SM3_SM4）國密算法java源代碼+PC工具\PC工具\SM2_3_4_CALC\
?????文件???????45056??2011-04-13?16:10??（SM2_SM3_SM4）國密算法java源代碼+PC工具\PC工具\SM2_3_4_CALC\Asist.dll
?????文件??????344064??2014-10-09?09:36??（SM2_SM3_SM4）國密算法java源代碼+PC工具\PC工具\SM2_3_4_CALC\SM2_3_4_CALC.exe