Example usage for org.bouncycastle.asn1 ASN1ApplicationSpecific getContents

Introduction

In this page you can find the example usage for org.bouncycastle.asn1 ASN1ApplicationSpecific getContents.

Prototype

public byte[] getContents() 

Source Link

Document

Return the contents of this object as a byte[]

Usage

From source file:pro.javacard.gp.GPData.java

License:Open Source License

public static List<GPKeySet.GPKey> get_key_template_list(byte[] data) throws GPException {
    List<GPKey> r = new ArrayList<>();

    try (ASN1InputStream ais = new ASN1InputStream(data)) {
        while (ais.available() > 0) {
            ASN1ApplicationSpecific keys = (DERApplicationSpecific) ais.readObject();
            // System.out.println(ASN1Dump.dumpAsString(keys, true));

            ASN1Sequence seq = (ASN1Sequence) keys.getObject(BERTags.SEQUENCE);
            for (ASN1Encodable p : Lists.newArrayList(seq.iterator())) {
                ASN1ApplicationSpecific key = (DERApplicationSpecific) p.toASN1Primitive();
                byte[] tmpl = key.getContents();
                if (tmpl.length < 4) {
                    throw new GPDataException("Key info template shorter than 4 bytes", tmpl);
                }//from   ww w  . j  av a 2 s  .  c o  m
                int id = tmpl[0] & 0xFF;
                int version = tmpl[1] & 0xFF;
                int type = tmpl[2] & 0xFF;
                int length = tmpl[3] & 0xFF;
                if (type == 0xFF) {
                    throw new GPDataException("Extended key template not yet supported", tmpl);
                }
                r.add(new GPKey(version, id, length, type));
            }
        }
    } catch (IOException | ClassCastException e) {
        throw new GPDataException("Could not parse key template: " + e.getMessage(), e);
    }
    return r;
}

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From source file:pro.javacard.gp.GPRegistry.java

License:Open Source License

private void populate_tags(byte[] data, Kind type) throws GPDataException {
    try (ASN1InputStream ais = new ASN1InputStream(data)) {
        while (ais.available() > 0) {
            DERApplicationSpecific registry_data = (DERApplicationSpecific) ais.readObject();
            // System.out.println(ASN1Dump.dumpAsString(registry_data, true));
            if (registry_data.getApplicationTag() == 3) {
                // XXX: a bit ugly and wasting code, we populate both objects but add only one
                GPRegistryEntryApp app = new GPRegistryEntryApp();
                GPRegistryEntryPkg pkg = new GPRegistryEntryPkg();
                ASN1Sequence seq = (ASN1Sequence) registry_data.getObject(BERTags.SEQUENCE);
                for (ASN1Encodable p : Lists.newArrayList(seq.iterator())) {
                    if (p instanceof DERApplicationSpecific) {
                        ASN1ApplicationSpecific entry = DERApplicationSpecific.getInstance(p);
                        if (entry.getApplicationTag() == 15) {
                            AID aid = new AID(entry.getContents());
                            app.setAID(aid);
                            pkg.setAID(aid);
                        } else if (entry.getApplicationTag() == 5) {
                            // privileges
                            Privileges privs = Privileges.fromBytes(entry.getContents());
                            app.setPrivileges(privs);
                        } else if (entry.getApplicationTag() == 4) {
                            AID a = new AID(entry.getContents());
                            app.setLoadFile(a);
                        } else if (entry.getApplicationTag() == 12) {
                            AID a = new AID(entry.getContents());
                            app.setDomain(a);
                            pkg.setDomain(a);
                        } else if (entry.getApplicationTag() == 14) {
                            pkg.setVersion(entry.getContents());
                        } else {
                            // XXX there are cards that have unknown tags.
                            // Normally we'd like to avoid having proprietary data
                            // but the rest of the response parses OK. So just ignore these
                            // tags instead of throwing an exception
                            logger.warn("Unknown tag: " + HexUtils.bin2hex(entry.getEncoded()));
                        }//from   w  w  w .  j  a  v  a2s .c  o  m
                    } else if (p instanceof DERTaggedObject) {
                        ASN1TaggedObject tag = DERTaggedObject.getInstance(p);
                        if (tag.getTagNo() == 112) { // lifecycle
                            ASN1OctetString lc = DEROctetString.getInstance(tag, false);
                            app.setLifeCycle(lc.getOctets()[0] & 0xFF);
                            pkg.setLifeCycle(lc.getOctets()[0] & 0xFF);
                        } else if (tag.getTagNo() == 4) { // Executable module AID
                            ASN1OctetString lc = DEROctetString.getInstance(tag, false);
                            AID a = new AID(lc.getOctets());
                            pkg.addModule(a);
                        } else {
                            logger.warn("Unknown data: " + HexUtils.bin2hex(tag.getEncoded()));
                        }
                    }
                }
                // Construct entry
                if (type == Kind.ExecutableLoadFile) {
                    pkg.setType(type);
                    add(pkg);
                } else {
                    app.setType(type);
                    add(app);
                }
            } else {
                throw new GPDataException("Invalid tag", registry_data.getEncoded());
            }
        }
    } catch (IOException e) {
        throw new GPDataException("Invalid data", e);
    }
}

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