import org.bouncycastle.asn1.ASN1ParsingException; //导入依赖的package包/类
public static CVCertificateRequest getInstance(Object obj)
{
    if (obj instanceof CVCertificateRequest)
    {
        return (CVCertificateRequest)obj;
    }
    else if (obj != null)
    {
        try
        {
            return new CVCertificateRequest(DERApplicationSpecific.getInstance(obj));
        }
        catch (IOException e)
        {
            throw new ASN1ParsingException("unable to parse data: " + e.getMessage(), e);
        }
    }

    return null;
}
 

import org.bouncycastle.asn1.ASN1ParsingException; //导入依赖的package包/类
/**
 * Create an iso7816Certificate structure from an object.
 *
 * @param obj the Object to extract the certificate from.
 * @return the Iso7816CertificateStructure represented by the byte stream.
 * @throws IOException if there is a problem parsing the data.
 */
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;
}
 

import org.bouncycastle.asn1.ASN1ParsingException; //导入依赖的package包/类
public static CVCertificateRequest getInstance(Object obj)
{
    if (obj instanceof CVCertificateRequest)
    {
        return (CVCertificateRequest)obj;
    }
    else if (obj != null)
    {
        try
        {
            return new CVCertificateRequest(ASN1ApplicationSpecific.getInstance(obj));
        }
        catch (IOException e)
        {
            throw new ASN1ParsingException("unable to parse data: " + e.getMessage(), e);
        }
    }

    return null;
}
 

import org.bouncycastle.asn1.ASN1ParsingException; //导入依赖的package包/类
/**
 * 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;
}
 

import org.bouncycastle.asn1.ASN1ParsingException; //导入依赖的package包/类
public ASN1SetParser getAuthAttrs()
    throws IOException
{
    if (nextObject == null)
    {
        nextObject = seq.readObject();
    }

    if (nextObject instanceof ASN1TaggedObjectParser)
    {
        ASN1Encodable o = nextObject;
        nextObject = null;
        return (ASN1SetParser)((ASN1TaggedObjectParser)o).getObjectParser(BERTags.SET, false);
    }

    // "The authAttrs MUST be present if the content type carried in
    // EncryptedContentInfo is not id-data."
    if (!authEncryptedContentInfoParser.getContentType().equals(CMSObjectIdentifiers.data))
    {
        throw new ASN1ParsingException("authAttrs must be present with non-data content");
    }

    return null;
}
 

import org.bouncycastle.asn1.ASN1ParsingException; //导入依赖的package包/类
/**
 * For all string values starting with '#' is assumed, that these are
 * already valid ASN.1 objects encoded in hex.
 * <p>
 * All other string values are send to
 * {@link AbstractX500NameStyle#encodeStringValue(ASN1ObjectIdentifier, String)}.
 * </p>
 * Subclasses should overwrite
 * {@link AbstractX500NameStyle#encodeStringValue(ASN1ObjectIdentifier, String)}
 * to change the encoding of specific types.
 *
 * @param oid the DN name of the value.
 * @param value the String representation of the value.
 */
public ASN1Encodable stringToValue(ASN1ObjectIdentifier oid, String value)
{
    if (value.length() != 0 && value.charAt(0) == '#')
    {
        try
        {
            return IETFUtils.valueFromHexString(value, 1);
        }
        catch (IOException e)
        {
            throw new ASN1ParsingException("can't recode value for oid " + oid.getId());
        }
    }

    if (value.length() != 0 && value.charAt(0) == '\\')
    {
        value = value.substring(1);
    }

    return encodeStringValue(oid, value);
}
 

import org.bouncycastle.asn1.ASN1ParsingException; //导入依赖的package包/类
public AuthEnvelopedDataParser(ASN1SequenceParser seq) throws IOException
{
    this.seq = seq;

    // "It MUST be set to 0."
    this.version = ASN1Integer.getInstance(seq.readObject());
    if (this.version.getValue().intValue() != 0)
    {
        throw new ASN1ParsingException("AuthEnvelopedData version number must be 0");
    }
}