diff options
Diffstat (limited to 'smcc/src/main/java/at/gv/egiz/smcc/cio/ObjectDirectory.java')
| -rw-r--r-- | smcc/src/main/java/at/gv/egiz/smcc/cio/ObjectDirectory.java | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/smcc/src/main/java/at/gv/egiz/smcc/cio/ObjectDirectory.java b/smcc/src/main/java/at/gv/egiz/smcc/cio/ObjectDirectory.java new file mode 100644 index 00000000..3ab954ee --- /dev/null +++ b/smcc/src/main/java/at/gv/egiz/smcc/cio/ObjectDirectory.java @@ -0,0 +1,208 @@ +/* + * Copyright 2008 Federal Chancellery Austria and + * Graz University of Technology + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package at.gv.egiz.smcc.cio; + +import at.gv.egiz.smcc.SignatureCardException; +import at.gv.egiz.smcc.util.ISO7816Utils; +import at.gv.egiz.smcc.util.TLV; +import at.gv.egiz.smcc.util.TLVSequence; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.List; + +import javax.smartcardio.CardChannel; +import javax.smartcardio.CardException; +import javax.smartcardio.CommandAPDU; +import javax.smartcardio.ResponseAPDU; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * TODO ObjectDirectory has access to card filesystem (to readTransparentFile(fid)) + * + * @author clemens + */ +public class ObjectDirectory { + + protected static final Logger log = LoggerFactory + .getLogger(ObjectDirectory.class); + + protected byte[] fid; + + protected CIOCertificateDirectory efCD; + /** TODO */ + protected CIOCertificateDirectory efPrKD; + + /** References to CIO EFs */ + private List<byte[]> PrKD_refs; + private List<byte[]> PuKD_refs; + private List<byte[]> AOD_refs; + private List<byte[]> CD_refs; + + private Integer padding; + private int P1 = 0x02; + + public ObjectDirectory() { + fid = new byte[] { (byte) 0x50, (byte) 0x31 }; + } + + public ObjectDirectory(byte[] fid) { + this.fid = fid; + } + + /** + * @deprecated check while reading if tag is valid + * @param padding + */ + public ObjectDirectory(int padding, int p1) { + + fid = new byte[] { (byte) 0x50, (byte) 0x31 }; + this.padding = padding; + this.P1 = p1; + } + + /** + * assume DF.CIA selected EF.OD selected afterwards + * + * @deprecated will be made private, use getCD/... instead + * + * @param channel + * @throws CardException + * @throws SignatureCardException + */ + public void selectAndRead(CardChannel channel) throws CardException, + SignatureCardException { + + CommandAPDU cmd = new CommandAPDU(0x00, 0xA4, P1, 0x00, fid, 256); + ResponseAPDU resp = channel.transmit(cmd); + + if (resp.getSW() != 0x9000) { + throw new SignatureCardException("SELECT EF.OD failed: SW=0x" + + Integer.toHexString(resp.getSW())); + } + + byte[] efod = ISO7816Utils.readTransparentFile(channel, -1); + + PrKD_refs = new ArrayList<byte[]>(); + PuKD_refs = new ArrayList<byte[]>(); + AOD_refs = new ArrayList<byte[]>(); + CD_refs = new ArrayList<byte[]>(); + + for (TLV cio : new TLVSequence(efod)) { + int tag = cio.getTag(); + + //TODO FIN EID: check if unknown tag and tag length > array + if (padding != null && tag == padding) { + // reached padding - quit record extraction + break; + } + + byte[] seq = cio.getValue(); + + if ((tag & 0xf0) == 0xa0 && seq.length >= 4) { + + byte[] path = Arrays.copyOfRange(seq, 4, 4 + seq[3]); + + switch (cio.getTag() & 0x0f) { + case 0: + PrKD_refs.add(path); + break; + case 1: + PuKD_refs.add(path); + break; + case 4: + CD_refs.add(path); + break; + case 8: + AOD_refs.add(path); + break; + default: + log.warn("CIOChoice 0x{} not supported: ", + (cio.getTag() & 0x0f)); + } + } else { + log.trace("ignoring invalid CIO reference entry: {}", seq); + } + } + } + + /** + * + * @return the CertificateDirectory CIO file referenced in this EF.OD. + * If multiple directory files are referenced, the returned CD covers + * all of them. + */ + public CIOCertificateDirectory getCD(CardChannel channel) throws CardException, SignatureCardException { + + if (efCD == null) { + + if (CD_refs == null) { + selectAndRead(channel); + } + efCD = new LIEZertifikatCertificateDirectory(CD_refs); + } + return efCD; + } + + public CIOCertificateDirectory getPrKD(CardChannel channel) throws CardException, SignatureCardException { + + if (efPrKD == null) { + + if (PrKD_refs == null) { + selectAndRead(channel); + } + efPrKD = new LIEZertifikatCertificateDirectory(PrKD_refs); + } + return efPrKD; + } + + + + /** + * @deprecated use getPrKD instead + * @return the references (FIDs) of the CIO files + */ + public List<byte[]> getPrKDReferences() { + return PrKD_refs; + } + + /** + * @deprecated use getPuKD instead + * @return the references (FIDs) of the CIO files + */ + public List<byte[]> getPuKDReferences() { + return PuKD_refs; + } + + /** + * @deprecated use getAOD instead + * @return the references (FIDs) of the CIO files + */ + public List<byte[]> getAODReferences() { + return AOD_refs; + } + + /** + * @deprecated use getCD instead + * @return the references (FIDs) of the CIO files + */ + public List<byte[]> getCDReferences() { + return CD_refs; + } +} |