Example usage for org.bouncycastle.asn1 ASN1Boolean getInstance

Introduction

In this page you can find the example usage for org.bouncycastle.asn1 ASN1Boolean getInstance.

Prototype

public static ASN1Boolean getInstance(ASN1TaggedObject obj, boolean explicit) 

Source Link

Document

Return a Boolean from a tagged object.

Usage

From source file:ca.trustpoint.m2m.M2mCertificateFactory.java

License:Apache License

/**
 * Parses ASN.1 sequence to set up X.509 extentions of a {@link M2mCertificate} object.
 *
 * @param seq An ASN.1 sequence containing X.509 extentions.
 * @param cert A {@link M2mCertificate} object to be filled.
 * @throw IOException if parsing error or data invalid.
 *///from   ww  w.ja  v a  2  s .  c o  m
private void parseX509extensions(ASN1Sequence seq, M2mCertificate cert) throws IOException {
    if (seq.size() < 1) {
        throw new IOException("not X.509 extension data in sequence");
    }

    for (int i = 0; i < seq.size(); i++) {
        ASN1Sequence extSeq = (ASN1Sequence) seq.getObjectAt(i);

        if (extSeq.size() < 2) {
            throw new IOException("no enough data fields for X.509 extension in sequence");
        } else if (extSeq.size() > 3) {
            throw new IOException("too many data fields for X.509 extension in sequence");
        }

        String oid = null;
        boolean isCritical = false;
        byte[] value = null;

        for (int j = 0; j < extSeq.size(); j++) {
            ASN1TaggedObject obj = (ASN1TaggedObject) extSeq.getObjectAt(j);

            switch (obj.getTagNo()) {
            case 0: // oid
                ASN1ObjectIdentifier oidObj = ASN1ObjectIdentifier.getInstance(obj, false);
                oid = oidObj.getId();
                break;
            case 1: // isCritical
                ASN1Boolean isCriticalObj = ASN1Boolean.getInstance(obj, false);
                isCritical = isCriticalObj.isTrue();
                break;
            case 2: // value
                ASN1OctetString valueObj = ASN1OctetString.getInstance(obj, false);
                value = valueObj.getOctets();
                break;
            default:
                throw new IOException("unknown x509extension ID: " + obj.getTagNo());
            }
        }

        cert.addExtension(oid, isCritical, value);
    }
}

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