1 files changed, 259 insertions, 0 deletions
diff --git a/smcc/src/main/java/at/gv/egiz/smcc/AbstractSignatureCard.java b/smcc/src/main/java/at/gv/egiz/smcc/AbstractSignatureCard.java
new file mode 100644
index 00000000..91c873c9
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+++ b/smcc/src/main/java/at/gv/egiz/smcc/AbstractSignatureCard.java
@@ -0,0 +1,259 @@
+//Copyright (C) 2002 IAIK
+//http://jce.iaik.at
+//
+//Copyright (C) 2003 Stiftung Secure Information and 
+//                 Communication Technologies SIC
+//http://www.sic.st
+//
+//All rights reserved.
+//
+//This source is provided for inspection purposes and recompilation only,
+//unless specified differently in a contract with IAIK. This source has to
+//be kept in strict confidence and must not be disclosed to any third party
+//under any circumstances. Redistribution in source and binary forms, with
+//or without modification, are <not> permitted in any case!
+//
+//THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+//ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+//IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+//ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+//FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+//DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+//OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+//HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+//OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+//SUCH DAMAGE.
+//
+//
+package at.gv.egiz.smcc;
+
+import java.nio.ByteBuffer;
+import java.util.Locale;
+import java.util.ResourceBundle;
+import java.util.logging.Logger;
+
+import javax.smartcardio.ATR;
+import javax.smartcardio.Card;
+import javax.smartcardio.CardChannel;
+import javax.smartcardio.CardException;
+import javax.smartcardio.CommandAPDU;
+import javax.smartcardio.ResponseAPDU;
+
+public abstract class AbstractSignatureCard implements SignatureCard {
+
+  static Logger logger = Logger.getLogger(AbstractSignatureCard.class.getName());
+  
+  private ResourceBundle i18n;
+  private String resourceBundleName;
+
+  private Locale locale = Locale.getDefault();
+  
+  int ifs_ = 254;
+  
+  Card card_;
+  
+  protected AbstractSignatureCard(String resourceBundleName) {
+    this.resourceBundleName = resourceBundleName;
+  }
+  
+  String toString(byte[] b) {
+    StringBuffer sb = new StringBuffer();
+    if (b != null && b.length > 0) {
+      sb.append(Integer.toHexString((b[0] & 240) >> 4));
+      sb.append(Integer.toHexString(b[0] & 15));
+    }
+    for(int i = 1; i < b.length; i++) {
+      sb.append(':');
+      sb.append(Integer.toHexString((b[i] & 240) >> 4));
+      sb.append(Integer.toHexString(b[i] & 15));
+    }
+    return sb.toString();
+  }
+  
+    abstract byte[] selectFileAID(byte[] fid) throws CardException, SignatureCardException;
+
+    abstract byte[] selectFileFID(byte[] fid) throws CardException, SignatureCardException;
+
+  byte[] readBinary(CardChannel channel, int offset, int len)
+      throws CardException, SignatureCardException {
+
+    ResponseAPDU resp = transmit(channel, new CommandAPDU(0x00, 0xB0,
+        0x7F & (offset >> 8), offset & 0xFF, len));
+    if (resp.getSW() == 0x9000) {
+      return resp.getData();
+    } else {
+      throw new SignatureCardException("Failed to read bytes (" + offset + "+"
+          + len + "): SW=" + Integer.toHexString(resp.getSW()));
+    }
+
+  }
+  
+    int readBinary(int offset, int len, byte[] b)
+        throws CardException, SignatureCardException {
+
+        if (b.length < len) {
+            throw new IllegalArgumentException(
+                "Length of b must not be less than len.");
+        }
+
+        CardChannel channel = getCardChannel();
+        
+        ResponseAPDU resp = transmit(channel, new CommandAPDU(0x00, 0xB0,
+            0x7F & (offset >> 8), offset & 0xFF, len));
+        if (resp.getSW() == 0x9000) {
+            System.arraycopy(resp.getData(), 0, b, 0, len);
+        }
+        
+        return resp.getSW();
+
+    }
+
+  byte[] readBinaryTLV(int maxSize, byte expectedType) throws CardException, SignatureCardException {
+
+    CardChannel channel = getCardChannel();
+    
+    // read first chunk
+    int len = Math.min(maxSize, ifs_);
+    byte[] chunk = readBinary(channel, 0, len);
+    if (chunk.length > 0 && chunk[0] != expectedType) {
+      return null;
+    }
+    int offset = chunk.length;
+    int actualSize = maxSize;
+    if (chunk.length > 3) {
+      if ((chunk[1] & 0x80) > 0) {
+        int octets = (0x0F & chunk[1]);
+        actualSize = 2 + octets;
+        for (int i = 1; i <= octets; i++) {
+          actualSize += (0xFF & chunk[i + 1]) << ((octets - i) * 8);
+        }
+      } else {
+        actualSize = 2 + chunk[1];
+      }
+    }
+    ByteBuffer buffer = ByteBuffer.allocate(actualSize);
+    buffer.put(chunk, 0, Math.min(actualSize, chunk.length));
+    while (offset < actualSize) {
+      len = Math.min(ifs_, actualSize - offset);
+      chunk = readBinary(channel, offset, len);
+      buffer.put(chunk);
+      offset += chunk.length;
+    }
+    return buffer.array();
+    
+  }
+  
+    abstract int verifyPIN(PINProvider pinProvider, PINSpec spec, byte kid, int kfpc) throws CardException, SignatureCardException;
+
+    public byte[] readTLVFile(byte[] aid, byte[] ef, int maxLength) throws SignatureCardException {
+        return readTLVFilePIN(aid, ef, (byte) 0, null, null, maxLength);
+    }
+    
+    public byte[] readTLVFilePIN(byte[] aid, byte[] ef, byte kid, 
+        PINProvider provider, PINSpec spec, int maxLength) throws SignatureCardException {
+
+        try {
+
+            // SELECT FILE (AID)
+            byte[] rb = selectFileAID(aid);
+            if (rb[rb.length - 2] != (byte) 0x90 || 
+                rb[rb.length - 1] != (byte) 0x00) {
+                
+                throw new SignatureCardException(
+                    "SELECT FILE with " +
+                    "AID=" + toString(aid) + " failed (" +
+                    "SW=" +
+                    Integer.toHexString(
+                    (0xFF & (int) rb[rb.length - 1]) |
+                    (0xFF & (int) rb[rb.length - 2]) << 8) +
+                    ").");
+                
+            }
+
+            // SELECT FILE (EF)
+            rb = selectFileFID(ef);
+            if (rb[rb.length - 2] != (byte) 0x90 || 
+                rb[rb.length - 1] != (byte) 0x00) {
+                
+                throw new SignatureCardException(
+                    "SELECT FILE with " +
+                    "FID=" + toString(ef) + " failed (" +
+                    "SW=" +
+                    Integer.toHexString(
+                    (0xFF & (int) rb[rb.length - 1]) |
+                    (0xFF & (int) rb[rb.length - 2]) << 8) +
+                    ").");
+            }
+
+            // try to READ BINARY
+            int sw = readBinary(0, 1, new byte[1]);
+            if (provider != null && sw == 0x6982) {
+                
+                // VERIFY
+                int kfpc = -1; // unknown
+                while (true) {
+                    kfpc = verifyPIN(provider, spec, kid, kfpc);
+                    if (kfpc < -1) {
+                        return null;
+                    } else if (kfpc < 0) {
+                        break;
+                    }
+                }
+            } else if (sw != 0x9000) {
+                throw new SignatureCardException("READ BINARY failed (SW=" +
+                    Integer.toHexString(sw) + ").");
+            }
+
+            // READ BINARY
+            byte[] data = readBinaryTLV(maxLength, (byte) 0x30);
+
+            return data;
+            
+            
+        } catch (CardException e) {
+            throw new SignatureCardException("Failed to acces card.", e);
+        }
+
+    }
+
+  
+  ResponseAPDU transmit(CardChannel channel, CommandAPDU commandAPDU) throws CardException {
+    logger.fine(commandAPDU + "\n" + toString(commandAPDU.getBytes()));
+    long t0 = System.currentTimeMillis();
+    ResponseAPDU responseAPDU = channel.transmit(commandAPDU);
+    long t1 = System.currentTimeMillis();
+    logger.fine(responseAPDU + "\n[" + (t1 - t0) + "ms] " + toString(responseAPDU.getBytes()));
+    return responseAPDU;
+  }
+
+  public void init(Card card) {
+    card_ = card;
+    ATR atr = card.getATR();
+    byte[] atrBytes = atr.getBytes();
+    if (atrBytes.length >= 6) {
+      ifs_ = 0xFF & atr.getBytes()[6];
+      logger.finer("Setting IFS (information field size) to " + ifs_);
+    }
+  }
+
+  CardChannel getCardChannel() {
+    return card_.getBasicChannel();
+  }
+  
+  
+  @Override
+  public void setLocale(Locale locale) {
+    if (locale == null) {
+      throw new NullPointerException("Locale must not be set to null");
+    }
+    this.locale = locale;
+  }
+  
+  protected ResourceBundle getResourceBundle() {
+    if (i18n == null) {
+      i18n = ResourceBundle.getBundle(resourceBundleName, locale);
+    }
+    return i18n;
+  }
+}