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package org.uic.barcode.dynamicFrame;
import java.security.PrivateKey;
import java.security.Provider;
import java.security.Signature;
import org.uic.barcode.asn1.datatypes.Asn1Optional;
import org.uic.barcode.asn1.datatypes.FieldOrder;
import org.uic.barcode.asn1.datatypes.Sequence;
import org.uic.barcode.asn1.datatypesimpl.OctetString;
import org.uic.barcode.asn1.uper.UperEncoder;
import org.uic.barcode.utils.AlgorithmNameResolver;
/**
* The Class DataType.
*/
@Sequence
public class Level2DataType {
@FieldOrder(order = 0)
Level1DataType level1Data;
/** The data. */
@FieldOrder(order = 1)
@Asn1Optional public OctetString level1Signature;
@FieldOrder(order = 2)
@Asn1Optional DataType level2Data;
public Level1DataType getLevel1Data() {
return level1Data;
}
public void setLevel1Data(Level1DataType level1Data) {
this.level1Data = level1Data;
}
public OctetString getLevel1Signature() {
return level1Signature;
}
public byte[] getLevel1SignatureBytes() {
return level1Signature.toByteArray();
}
public void setLevel1Signature(OctetString level1Signature) {
this.level1Signature = level1Signature;
}
public void setLevel1Signature(byte[] level1Signature) {
this.level1Signature = new OctetString(level1Signature);
}
public DataType getLevel2Data() {
return level2Data;
}
public void setLevel2Data(DataType level2Data) {
this.level2Data = level2Data;
}
/**
* Encode.
*
* Encode the header as ASN.1 PER UNALIGNED byte array
*
* @return the byte[]
*/
public byte[] encode() {
return UperEncoder.encode(this);
}
/**
* Sign the contained data block.
*
* Note: an appropriate security provider (e.g. BC) must be registered before
*
* @param key the key
* @return
* @return the byte[]
* @throws Exception
*/
public void signLevel1(PrivateKey key) throws Exception {
//find the algorithm name for the signature OID
String algo = AlgorithmNameResolver.getSignatureAlgorithmName(getLevel1Data().level1SigningAlg);
Signature sig = Signature.getInstance(algo);
sig.initSign(key);
byte[] data = level1Data.encode();
sig.update(data);
this.level1Signature = new OctetString(sig.sign());
}
/**
* Sign the contained data block.
*
* Note: an appropriate security provider (e.g. BC) must be registered before
*
* @param key the key
* @param security provider - security provider that must be sued to create the signature
* @return
* @return the byte[]
* @throws Exception
*/
public void signLevel1(PrivateKey key, Provider prov) throws Exception {
//find the algorithm name for the signature OID
String algo = AlgorithmNameResolver.getSignatureAlgorithmName(getLevel1Data().level1SigningAlg);
Signature sig = Signature.getInstance(algo, prov);
sig.initSign(key);
byte[] data = level1Data.encode();
sig.update(data);
this.level1Signature = new OctetString(sig.sign());
}
}
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