68 lines
2.6 KiB
Java
68 lines
2.6 KiB
Java
package com.sunyard.util;
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import cn.hutool.core.bean.BeanUtil;
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import com.sunyard.RetWrap;
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import com.sunyard.proto.R;
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import com.sunyard.proto.Util;
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import org.bouncycastle.asn1.*;
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import java.io.IOException;
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public class ASN1Util {
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public static RetWrap takeOutOriginDataFromPKCS7Sign(String sign) throws IOException {
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RetWrap ret = new RetWrap();
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ASN1Sequence seq = ASN1Sequence.getInstance( Util.decodeBase64( sign ) );
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ASN1TaggedObject tag = (ASN1TaggedObject) seq.getObjectAt(1).toASN1Primitive();
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ASN1Sequence seq2 = (ASN1Sequence) tag.getObject();
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ASN1Sequence seq3 = (ASN1Sequence) seq2.getObjectAt( 2 ).toASN1Primitive();
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ASN1TaggedObject tag2 = (ASN1TaggedObject) seq3.getObjectAt( 1 );
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DEROctetString o = (DEROctetString) tag2.getObject();
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ret.put( "orgData", o.getOctets() );
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ASN1TaggedObject tag3 = (ASN1TaggedObject) seq2.getObjectAt(3).toASN1Primitive();
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ASN1Sequence seq4 = (ASN1Sequence) tag3.getObject();
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ret.put("cert", CertUtil.encodeBase64(seq4.getEncoded()));
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ASN1Sequence seq5 = (ASN1Sequence) seq4.getObjectAt( 0 ).toASN1Primitive();
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ASN1Sequence seq6 = (ASN1Sequence) seq5.getObjectAt( 6 ).toASN1Primitive();
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DERBitString pk = (DERBitString) seq6.getObjectAt( 1 ).toASN1Primitive();
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ret.put("pk", pk.getEncoded() );
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ASN1Encodable[] elements = seq3.toArray();
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ASN1Encodable[] elements2 = new ASN1Encodable[ elements.length - 1];
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for ( int i = 0; i < elements.length -1 ; i++ ){
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elements2[i] = elements[i];
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}
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BeanUtil.setProperty( seq3, "elements", elements2);
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ret.put("sign", Util.encodeBase64(seq.getEncoded()) );
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return ret;
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}
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public static String addOriginDataToPKCS7Sign( byte[] originData, String sign) throws IOException {
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ASN1Sequence seq = ASN1Sequence.getInstance( Util.decodeBase64( sign ) );
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ASN1TaggedObject tag = (ASN1TaggedObject) seq.getObjectAt(1).toASN1Primitive();
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ASN1Sequence seq2 = (ASN1Sequence) tag.getObject();
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ASN1Sequence seq3 = (ASN1Sequence) seq2.getObjectAt( 2 ).toASN1Primitive();
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ASN1Encodable[] elements = seq3.toArray();
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ASN1Encodable[] elements2 = new ASN1Encodable[ elements.length + 1];
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for ( int i = 0; i < elements.length ; i++ ){
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elements2[i] = elements[i];
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}
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elements2[ elements.length ] = new DERTaggedObject(true, 0, new DEROctetString( originData ));
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BeanUtil.setProperty( seq3, "elements", elements2);
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return Util.encodeBase64(seq.getEncoded());
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}
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}
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