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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.8. Note: this package includes the NTRU encryption algorithms.
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package org.bouncycastle.asn1.eac;
import java.io.IOException;
import org.bouncycastle.asn1.ASN1ApplicationSpecific;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1InputStream;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1ParsingException;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.DERApplicationSpecific;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.util.Arrays;
/**
* an iso7816Certificate structure.
*
* Certificate ::= SEQUENCE {
* CertificateBody Iso7816CertificateBody,
* signature DER Application specific
* }
*
*/
public class CVCertificate
extends ASN1Object
{
private CertificateBody certificateBody;
private byte[] signature;
private int valid;
private static int bodyValid = 0x01;
private static int signValid = 0x02;
/**
* Sets the values of the certificate (body and signature).
*
* @param appSpe is a ASN1ApplicationSpecific object containing body and signature.
* @throws IOException if tags or value are incorrect.
*/
private void setPrivateData(ASN1ApplicationSpecific appSpe)
throws IOException
{
valid = 0;
if (appSpe.getApplicationTag() == EACTags.CARDHOLDER_CERTIFICATE)
{
ASN1InputStream content = new ASN1InputStream(appSpe.getContents());
ASN1Primitive tmpObj;
while ((tmpObj = content.readObject()) != null)
{
DERApplicationSpecific aSpe;
if (tmpObj instanceof DERApplicationSpecific)
{
aSpe = (DERApplicationSpecific)tmpObj;
switch (aSpe.getApplicationTag())
{
case EACTags.CERTIFICATE_CONTENT_TEMPLATE:
certificateBody = CertificateBody.getInstance(aSpe);
valid |= bodyValid;
break;
case EACTags.STATIC_INTERNAL_AUTHENTIFICATION_ONE_STEP:
signature = aSpe.getContents();
valid |= signValid;
break;
default:
throw new IOException("Invalid tag, not an Iso7816CertificateStructure :" + aSpe.getApplicationTag());
}
}
else
{
throw new IOException("Invalid Object, not an Iso7816CertificateStructure");
}
}
content.close();
}
else
{
throw new IOException("not a CARDHOLDER_CERTIFICATE :" + appSpe.getApplicationTag());
}
if (valid != (signValid | bodyValid))
{
throw new IOException("invalid CARDHOLDER_CERTIFICATE :" + appSpe.getApplicationTag());
}
}
/**
* Create an iso7816Certificate structure from an ASN1InputStream.
*
* @param aIS the byte stream to parse.
* @throws IOException if there is a problem parsing the data.
*/
public CVCertificate(ASN1InputStream aIS)
throws IOException
{
initFrom(aIS);
}
private void initFrom(ASN1InputStream aIS)
throws IOException
{
ASN1Primitive obj;
while ((obj = aIS.readObject()) != null)
{
if (obj instanceof DERApplicationSpecific)
{
setPrivateData((DERApplicationSpecific)obj);
}
else
{
throw new IOException("Invalid Input Stream for creating an Iso7816CertificateStructure");
}
}
}
/**
* Create an iso7816Certificate structure from a DERApplicationSpecific.
*
* @param appSpe the DERApplicationSpecific object.
* @return the Iso7816CertificateStructure represented by the DERApplicationSpecific object.
* @throws IOException if there is a problem parsing the data.
*/
private CVCertificate(ASN1ApplicationSpecific appSpe)
throws IOException
{
setPrivateData(appSpe);
}
/**
* Create an iso7816Certificate structure from a body and its signature.
*
* @param body the Iso7816CertificateBody object containing the body.
* @param signature the byte array containing the signature
* @throws IOException if there is a problem parsing the data.
*/
public CVCertificate(CertificateBody body, byte[] signature)
throws IOException
{
certificateBody = body;
this.signature = Arrays.clone(signature);
// patch remi
valid |= bodyValid;
valid |= signValid;
}
/**
* Create an iso7816Certificate structure from an object.
*
* @param obj the Object to extract the certificate from.
* @return the Iso7816CertificateStructure represented by the byte stream.
*/
public static CVCertificate getInstance(Object obj)
{
if (obj instanceof CVCertificate)
{
return (CVCertificate)obj;
}
else if (obj != null)
{
try
{
return new CVCertificate(DERApplicationSpecific.getInstance(obj));
}
catch (IOException e)
{
throw new ASN1ParsingException("unable to parse data: " + e.getMessage(), e);
}
}
return null;
}
/**
* Gives the signature of the whole body. Type of signature is given in
* the Iso7816CertificateBody.Iso7816PublicKey.ASN1ObjectIdentifier
*
* @return the signature of the body.
*/
public byte[] getSignature()
{
return Arrays.clone(signature);
}
/**
* Gives the body of the certificate.
*
* @return the body.
*/
public CertificateBody getBody()
{
return certificateBody;
}
/**
* @see org.bouncycastle.asn1.ASN1Object#toASN1Primitive()
*/
public ASN1Primitive toASN1Primitive()
{
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(certificateBody);
try
{
v.add(new DERApplicationSpecific(false, EACTags.STATIC_INTERNAL_AUTHENTIFICATION_ONE_STEP, new DEROctetString(signature)));
}
catch (IOException e)
{
throw new IllegalStateException("unable to convert signature!");
}
return new DERApplicationSpecific(EACTags.CARDHOLDER_CERTIFICATE, v);
}
/**
* @return the Holder authorization and role (CVCA, DV, IS).
*/
public ASN1ObjectIdentifier getHolderAuthorization()
throws IOException
{
CertificateHolderAuthorization cha = certificateBody.getCertificateHolderAuthorization();
return cha.getOid();
}
/**
* @return the date of the certificate generation
*/
public PackedDate getEffectiveDate()
throws IOException
{
return certificateBody.getCertificateEffectiveDate();
}
/**
* @return the type of certificate (request or profile)
* value is either Iso7816CertificateBody.profileType
* or Iso7816CertificateBody.requestType. Any other value
* is not valid.
*/
public int getCertificateType()
{
return this.certificateBody.getCertificateType();
}
/**
* @return the date of the certificate generation
*/
public PackedDate getExpirationDate()
throws IOException
{
return certificateBody.getCertificateExpirationDate();
}
/**
* return a bits field coded on one byte. For signification of the
* several bit see Iso7816CertificateHolderAuthorization
*
* @return role and access rigth
* @throws IOException
* @see CertificateHolderAuthorization
*/
public int getRole()
throws IOException
{
CertificateHolderAuthorization cha = certificateBody.getCertificateHolderAuthorization();
return cha.getAccessRights();
}
/**
* @return the Authority Reference field of the certificate
* @throws IOException
*/
public CertificationAuthorityReference getAuthorityReference()
throws IOException
{
return certificateBody.getCertificationAuthorityReference();
}
/**
* @return the Holder Reference Field of the certificate
* @throws IOException
*/
public CertificateHolderReference getHolderReference()
throws IOException
{
return certificateBody.getCertificateHolderReference();
}
/**
* @return the bits corresponding to the role intented for the certificate
* See Iso7816CertificateHolderAuthorization static int for values
* @throws IOException
*/
public int getHolderAuthorizationRole()
throws IOException
{
int rights = certificateBody.getCertificateHolderAuthorization().getAccessRights();
return rights & 0xC0;
}
/**
* @return the bits corresponding the authorizations contained in the certificate
* See Iso7816CertificateHolderAuthorization static int for values
* @throws IOException
*/
public Flags getHolderAuthorizationRights()
throws IOException
{
return new Flags(certificateBody.getCertificateHolderAuthorization().getAccessRights() & 0x1F);
}
}