diff options
Diffstat (limited to 'smcc/src/main/java/at/gv/egiz/smcc/DNIeCardSecureChannel.java')
| -rw-r--r-- | smcc/src/main/java/at/gv/egiz/smcc/DNIeCardSecureChannel.java | 1648 |
1 files changed, 0 insertions, 1648 deletions
diff --git a/smcc/src/main/java/at/gv/egiz/smcc/DNIeCardSecureChannel.java b/smcc/src/main/java/at/gv/egiz/smcc/DNIeCardSecureChannel.java deleted file mode 100644 index da63bec2..00000000 --- a/smcc/src/main/java/at/gv/egiz/smcc/DNIeCardSecureChannel.java +++ /dev/null @@ -1,1648 +0,0 @@ -/*
-* Copyright 2009 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;
-
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.math.BigInteger;
-import java.security.InvalidAlgorithmParameterException;
-import java.security.InvalidKeyException;
-import java.security.Key;
-import java.security.KeyFactory;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.security.NoSuchProviderException;
-import java.security.PublicKey;
-import java.security.cert.CertificateFactory;
-import java.security.cert.X509Certificate;
-import java.security.interfaces.RSAPrivateKey;
-import java.security.interfaces.RSAPublicKey;
-import java.security.spec.KeySpec;
-import java.security.spec.RSAPrivateKeySpec;
-import java.security.spec.RSAPublicKeySpec;
-import java.util.Arrays;
-import java.util.Random;
-
-import javax.crypto.BadPaddingException;
-import javax.crypto.Cipher;
-import javax.crypto.IllegalBlockSizeException;
-import javax.crypto.NoSuchPaddingException;
-import javax.crypto.ShortBufferException;
-import javax.crypto.spec.IvParameterSpec;
-import javax.crypto.spec.SecretKeySpec;
-import javax.smartcardio.CardChannel;
-import javax.smartcardio.CardException;
-import javax.smartcardio.CommandAPDU;
-import javax.smartcardio.ResponseAPDU;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-public class DNIeCardSecureChannel {
-
- private final Logger log = LoggerFactory
- .getLogger(DNIeCardSecureChannel.class);
-
- private final byte[] APDU_DATA_MSE_LOAD_TERMINAL_CERTS = new byte[] {
- (byte) 0x83, (byte) 0x02, (byte) 0x02, (byte) 0x0F };
-
- private final String TERMINAL_MODULO = "DB2CB41E112BACFA2BD7C3D3D7967E84FB9434FC261F9D090A8983947DAF8488D3DF8FBDCC1F92493585E134A1B42DE519F463244D7ED384E26D516CC7A4FF7895B1992140043AACADFC12E856B202346AF8226B1A882137DC3C5A57F0D2815C1FCD4BB46FA9157FDFFD79EC3A10A824CCC1EB3CE0B6B4396AE236590016BA69";
- private final String TERMINAL_PRIVEXP = "18B44A3D155C61EBF4E3261C8BB157E36F63FE30E9AF28892B59E2ADEB18CC8C8BAD284B9165819CA4DEC94AA06B69BCE81706D1C1B668EB128695E5F7FEDE18A908A3011A646A481D3EA71D8A387D474609BD57A882B182E047DE80E04B4221416BD39DFA1FAC0300641962ADB109E28CAF50061B68C9CABD9B00313C0F46ED";
-
- private static final String ROOT_CA_MODULO = "EADEDA455332945039DAA404C8EBC4D3B7F5DC869283CDEA2F101E2AB54FB0D0B03D8F030DAF2458028288F54CE552F8FA57AB2FB103B112427E11131D1D27E10A5B500EAAE5D940301E30EB26C3E9066B257156ED639D70CCC090B863AFBB3BFED8C17BE7673034B9823E977ED657252927F9575B9FFF6691DB64F80B5E92CD";
- private static final String ROOT_CA_PUBEXP = "010001";
-
- private final byte[] C_CV_CA = new byte[] {
-
- (byte) 0x7F, (byte) 0x21, (byte) 0x81, (byte) 0xCE, (byte) 0x5F,
- (byte) 0x37, (byte) 0x81, (byte) 0x80, (byte) 0x3C, (byte) 0xBA,
- (byte) 0xDC, (byte) 0x36, (byte) 0x84, (byte) 0xBE, (byte) 0xF3,
- (byte) 0x20, (byte) 0x41, (byte) 0xAD, (byte) 0x15, (byte) 0x50,
- (byte) 0x89, (byte) 0x25, (byte) 0x8D, (byte) 0xFD, (byte) 0x20,
- (byte) 0xC6, (byte) 0x91, (byte) 0x15, (byte) 0xD7, (byte) 0x2F,
- (byte) 0x9C, (byte) 0x38, (byte) 0xAA, (byte) 0x99, (byte) 0xAD,
- (byte) 0x6C, (byte) 0x1A, (byte) 0xED, (byte) 0xFA, (byte) 0xB2,
- (byte) 0xBF, (byte) 0xAC, (byte) 0x90, (byte) 0x92, (byte) 0xFC,
- (byte) 0x70, (byte) 0xCC, (byte) 0xC0, (byte) 0x0C, (byte) 0xAF,
- (byte) 0x48, (byte) 0x2A, (byte) 0x4B, (byte) 0xE3, (byte) 0x1A,
- (byte) 0xFD, (byte) 0xBD, (byte) 0x3C, (byte) 0xBC, (byte) 0x8C,
- (byte) 0x83, (byte) 0x82, (byte) 0xCF, (byte) 0x06, (byte) 0xBC,
- (byte) 0x07, (byte) 0x19, (byte) 0xBA, (byte) 0xAB, (byte) 0xB5,
- (byte) 0x6B, (byte) 0x6E, (byte) 0xC8, (byte) 0x07, (byte) 0x60,
- (byte) 0xA4, (byte) 0xA9, (byte) 0x3F, (byte) 0xA2, (byte) 0xD7,
- (byte) 0xC3, (byte) 0x47, (byte) 0xF3, (byte) 0x44, (byte) 0x27,
- (byte) 0xF9, (byte) 0xFF, (byte) 0x5C, (byte) 0x8D, (byte) 0xE6,
- (byte) 0xD6, (byte) 0x5D, (byte) 0xAC, (byte) 0x95, (byte) 0xF2,
- (byte) 0xF1, (byte) 0x9D, (byte) 0xAC, (byte) 0x00, (byte) 0x53,
- (byte) 0xDF, (byte) 0x11, (byte) 0xA5, (byte) 0x07, (byte) 0xFB,
- (byte) 0x62, (byte) 0x5E, (byte) 0xEB, (byte) 0x8D, (byte) 0xA4,
- (byte) 0xC0, (byte) 0x29, (byte) 0x9E, (byte) 0x4A, (byte) 0x21,
- (byte) 0x12, (byte) 0xAB, (byte) 0x70, (byte) 0x47, (byte) 0x58,
- (byte) 0x8B, (byte) 0x8D, (byte) 0x6D, (byte) 0xA7, (byte) 0x59,
- (byte) 0x22, (byte) 0x14, (byte) 0xF2, (byte) 0xDB, (byte) 0xA1,
- (byte) 0x40, (byte) 0xC7, (byte) 0xD1, (byte) 0x22, (byte) 0x57,
- (byte) 0x9B, (byte) 0x5F, (byte) 0x38, (byte) 0x3D, (byte) 0x22,
- (byte) 0x53, (byte) 0xC8, (byte) 0xB9, (byte) 0xCB, (byte) 0x5B,
- (byte) 0xC3, (byte) 0x54, (byte) 0x3A, (byte) 0x55, (byte) 0x66,
- (byte) 0x0B, (byte) 0xDA, (byte) 0x80, (byte) 0x94, (byte) 0x6A,
- (byte) 0xFB, (byte) 0x05, (byte) 0x25, (byte) 0xE8, (byte) 0xE5,
- (byte) 0x58, (byte) 0x6B, (byte) 0x4E, (byte) 0x63, (byte) 0xE8,
- (byte) 0x92, (byte) 0x41, (byte) 0x49, (byte) 0x78, (byte) 0x36,
- (byte) 0xD8, (byte) 0xD3, (byte) 0xAB, (byte) 0x08, (byte) 0x8C,
- (byte) 0xD4, (byte) 0x4C, (byte) 0x21, (byte) 0x4D, (byte) 0x6A,
- (byte) 0xC8, (byte) 0x56, (byte) 0xE2, (byte) 0xA0, (byte) 0x07,
- (byte) 0xF4, (byte) 0x4F, (byte) 0x83, (byte) 0x74, (byte) 0x33,
- (byte) 0x37, (byte) 0x37, (byte) 0x1A, (byte) 0xDD, (byte) 0x8E,
- (byte) 0x03, (byte) 0x00, (byte) 0x01, (byte) 0x00, (byte) 0x01,
- (byte) 0x42, (byte) 0x08, (byte) 0x65, (byte) 0x73, (byte) 0x52,
- (byte) 0x44, (byte) 0x49, (byte) 0x60, (byte) 0x00, (byte) 0x06 };
-
- private final byte[] CHR = new byte[] {
-
- (byte) 0x83, (byte) 0x08, (byte) 0x65, (byte) 0x73, (byte) 0x53,
- (byte) 0x44, (byte) 0x49, (byte) 0x60, (byte) 0x00, (byte) 0x06 };
-
- private final byte[] KEY_SELECTOR = new byte[] {
-
- (byte) 0x83, (byte) 0x0C, (byte) 0x00, (byte) 0x00, (byte) 0x00,
- (byte) 0x00, (byte) 0x20, (byte) 0x00, (byte) 0x00, (byte) 0x00,
- (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01, (byte) 0x84,
- (byte) 0x02, (byte) 0x02, (byte) 0x1F };
-
- private final byte[] C_CV_IFD = new byte[] {
-
- (byte) 0x7f, (byte) 0x21, (byte) 0x81, (byte) 0xcd, (byte) 0x5f,
- (byte) 0x37, (byte) 0x81, (byte) 0x80, (byte) 0x82, (byte) 0x5b,
- (byte) 0x69, (byte) 0xc6, (byte) 0x45, (byte) 0x1e, (byte) 0x5f,
- (byte) 0x51, (byte) 0x70, (byte) 0x74, (byte) 0x38, (byte) 0x5f,
- (byte) 0x2f, (byte) 0x17, (byte) 0xd6, (byte) 0x4d, (byte) 0xfe,
- (byte) 0x2e, (byte) 0x68, (byte) 0x56, (byte) 0x75, (byte) 0x67,
- (byte) 0x09, (byte) 0x4b, (byte) 0x57, (byte) 0xf3, (byte) 0xc5,
- (byte) 0x78, (byte) 0xe8, (byte) 0x30, (byte) 0xe4, (byte) 0x25,
- (byte) 0x57, (byte) 0x2d, (byte) 0xe8, (byte) 0x28, (byte) 0xfa,
- (byte) 0xf4, (byte) 0xde, (byte) 0x1b, (byte) 0x01, (byte) 0xc3,
- (byte) 0x94, (byte) 0xe3, (byte) 0x45, (byte) 0xc2, (byte) 0xfb,
- (byte) 0x06, (byte) 0x29, (byte) 0xa3, (byte) 0x93, (byte) 0x49,
- (byte) 0x2f, (byte) 0x94, (byte) 0xf5, (byte) 0x70, (byte) 0xb0,
- (byte) 0x0b, (byte) 0x1d, (byte) 0x67, (byte) 0x77, (byte) 0x29,
- (byte) 0xf7, (byte) 0x55, (byte) 0xd1, (byte) 0x07, (byte) 0x02,
- (byte) 0x2b, (byte) 0xb0, (byte) 0xa1, (byte) 0x16, (byte) 0xe1,
- (byte) 0xd7, (byte) 0xd7, (byte) 0x65, (byte) 0x9d, (byte) 0xb5,
- (byte) 0xc4, (byte) 0xac, (byte) 0x0d, (byte) 0xde, (byte) 0xab,
- (byte) 0x07, (byte) 0xff, (byte) 0x04, (byte) 0x5f, (byte) 0x37,
- (byte) 0xb5, (byte) 0xda, (byte) 0xf1, (byte) 0x73, (byte) 0x2b,
- (byte) 0x54, (byte) 0xea, (byte) 0xb2, (byte) 0x38, (byte) 0xa2,
- (byte) 0xce, (byte) 0x17, (byte) 0xc9, (byte) 0x79, (byte) 0x41,
- (byte) 0x87, (byte) 0x75, (byte) 0x9c, (byte) 0xea, (byte) 0x9f,
- (byte) 0x92, (byte) 0xa1, (byte) 0x78, (byte) 0x05, (byte) 0xa2,
- (byte) 0x7c, (byte) 0x10, (byte) 0x15, (byte) 0xec, (byte) 0x56,
- (byte) 0xcc, (byte) 0x7e, (byte) 0x47, (byte) 0x1a, (byte) 0x48,
- (byte) 0x8e, (byte) 0x6f, (byte) 0x1b, (byte) 0x91, (byte) 0xf7,
- (byte) 0xaa, (byte) 0x5f, (byte) 0x38, (byte) 0x3c, (byte) 0xad,
- (byte) 0xfc, (byte) 0x12, (byte) 0xe8, (byte) 0x56, (byte) 0xb2,
- (byte) 0x02, (byte) 0x34, (byte) 0x6a, (byte) 0xf8, (byte) 0x22,
- (byte) 0x6b, (byte) 0x1a, (byte) 0x88, (byte) 0x21, (byte) 0x37,
- (byte) 0xdc, (byte) 0x3c, (byte) 0x5a, (byte) 0x57, (byte) 0xf0,
- (byte) 0xd2, (byte) 0x81, (byte) 0x5c, (byte) 0x1f, (byte) 0xcd,
- (byte) 0x4b, (byte) 0xb4, (byte) 0x6f, (byte) 0xa9, (byte) 0x15,
- (byte) 0x7f, (byte) 0xdf, (byte) 0xfd, (byte) 0x79, (byte) 0xec,
- (byte) 0x3a, (byte) 0x10, (byte) 0xa8, (byte) 0x24, (byte) 0xcc,
- (byte) 0xc1, (byte) 0xeb, (byte) 0x3c, (byte) 0xe0, (byte) 0xb6,
- (byte) 0xb4, (byte) 0x39, (byte) 0x6a, (byte) 0xe2, (byte) 0x36,
- (byte) 0x59, (byte) 0x00, (byte) 0x16, (byte) 0xba, (byte) 0x69,
- (byte) 0x00, (byte) 0x01, (byte) 0x00, (byte) 0x01, (byte) 0x42,
- (byte) 0x08, (byte) 0x65, (byte) 0x73, (byte) 0x53, (byte) 0x44,
- (byte) 0x49, (byte) 0x60, (byte) 0x00, (byte) 0x06
-
- };
-
- private final byte[] APDU_GET_CHIP_INFO = new byte[] { (byte) 0x90,
- (byte) 0xB8, (byte) 0x00, (byte) 0x00, (byte) 0x07 };
-
- private final byte[] APDU_SELECT_EF_DF_HEADER = new byte[] { (byte) 0x00,
- (byte) 0xA4, (byte) 0x00, (byte) 0x00 };
-
- private final byte[] APDU_READ_BINARY = new byte[] { (byte) 0x00,
- (byte) 0xB0, (byte) 0x00, (byte) 0x00, (byte) 0xFF };
-
- private final byte[] SECURE_CHANNEL_COMP_CERT_ID = new byte[] {
- (byte) 0x60, (byte) 0x1F };
- private final byte[] SECURE_CHANNEL_INTERMEDIAT_CERT_ID = new byte[] {
- (byte) 0x60, (byte) 0x20 };
-
- private final byte[] TERMINAL_CHALLENGE_TAIL = new byte[] {
-
- (byte) 0x20, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
- (byte) 0x00, (byte) 0x00, (byte) 0x01 };
-
- private final byte[] KENC_COMPUTATION_TAIL = new byte[] {
-
- (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x01 };
-
- private final byte[] KMAC_COMPUTATION_TAIL = new byte[] {
-
- (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x02 };
-
- private final int BLOCK_LENGTH = 8;
-
- private final byte[] IV = new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00 };
-
- private final byte[] HASH_PADDING = new byte[] {
-
- (byte) 0x30, (byte) 0x21, (byte) 0x30, (byte) 0x09, (byte) 0x06,
- (byte) 0x05, (byte) 0x2B, (byte) 0x0E, (byte) 0x03, (byte) 0x02,
- (byte) 0x1A, (byte) 0x05, (byte) 0x00, (byte) 0x04, (byte) 0x14 };
-
- private byte[] snIcc;
- private byte[] componentCert;
- private byte[] intermediateCert;
-
- private byte[] rndIfd;
- private byte[] rndIcc;
- private int prndLength;
-
- private byte[] kicc;
- private byte[] kifd;
-
- private byte[] kEnc;
- private byte[] kMac;
- private byte[] ssc;
-
- private boolean established;
-
- public DNIeCardSecureChannel() {
-
- this.established = false;
- }
-
- public void establish(CardChannel channel) throws CardException {
-
- log.debug("Setting up secure channel to crd..");
-
- // get chip info
- this.snIcc = executeGetChipInfo(channel);
-
- // get card certificates to establish secure channel
- this.intermediateCert = executeReadSecureChannelCertificate(channel,
- SECURE_CHANNEL_INTERMEDIAT_CERT_ID);
- this.componentCert = executeReadSecureChannelCertificate(channel,
- SECURE_CHANNEL_COMP_CERT_ID);
-
- // verify card's secure channel certificates
- verifyCertificates();
-
- // load terminal secure channel certificates and select appropriate keys
- loadTerminalCertsAndSelectKeys(channel);
-
- // perform internal authentication
- performInternalAuthentication(channel);
-
- // perform external authentication
- performExternalAuthentication(channel);
-
- // derive channel keys
- calculateChannelKeys();
-
- // secure channel successfully established
- this.established = true;
- log.debug("Secure channel successfully established.");
-
- }
-
- public byte[] executeSecureSelect(CardChannel channel, byte[] apdu)
- throws CardException {
-
- log.debug("Executing secure select command..");
-
- byte[] securedApdu = getSecuredAPDU(apdu);
-
- CommandAPDU command = new CommandAPDU(securedApdu);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() != 0x9000) {
-
- throw new CardException("Unexpected response from card: "
- + Integer.toHexString(resp.getSW()));
- }
-
- byte[] data = resp.getData();
-
- byte[] response = verifyAndDecryptSecuredResponseAPDU(data);
-
- if (response.length >= 2
- && response[response.length - 2] == (byte) 0x90
- && response[response.length - 1] == (byte) 0x00) {
-
- log.debug("OK");
- } else {
-
- log.error("FAILED");
- throw new CardException("Unable to select file on card.");
- }
-
- byte[] fci = new byte[response.length - 2];
- System.arraycopy(response, 0, fci, 0, response.length - 2);
-
- return fci;
-
- }
-
- public void executeSecureManageSecurityEnvironment(CardChannel channel, byte[] id)
- throws CardException {
-
- log.debug("Manage Security Environment..");
-
- byte[] apdu = new byte[7 + 2];
- apdu[0] = (byte) 0x00;
- apdu[1] = (byte) 0x22;
- apdu[2] = (byte) 0x41;
- apdu[3] = (byte) 0xB6;
- apdu[4] = (byte) (2 + 2);
- apdu[5] = (byte) 0x84; // Tag
- apdu[6] = (byte) 0x02; // Length
- apdu[7] = id[0]; // ID
- apdu[8] = id[1]; // ID
-
- byte[] securedAPDU = getSecuredAPDU(apdu);
-
- CommandAPDU command = new CommandAPDU(securedAPDU);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() == 0x9000) {
-
- byte[] response = resp.getData();
-
- byte[] decryptedResponse = verifyAndDecryptSecuredResponseAPDU(response);
-
- if (decryptedResponse.length == 2
- && decryptedResponse[0] == (byte) 0x90
- && decryptedResponse[1] == (byte) 0x00) {
-
- log.debug("OK");
- } else {
-
- log.debug("FAILED");
- throw new CardException(
- "Execution of command Manage Security Environment failed: "
- + formatByteArray(decryptedResponse));
- }
-
- }
- }
-
- public byte[] executeSecureCreateSignature(CardChannel channel, byte[] data)
- throws CardException {
-
- log.debug("Compute electronic signature on card..");
-
- byte[] apdu = new byte[5 + HASH_PADDING.length + data.length];
- apdu[0] = (byte) 0x00;
- apdu[1] = (byte) 0x2A;
- apdu[2] = (byte) 0x9E;
- apdu[3] = (byte) 0x9A;
- apdu[4] = (byte) (HASH_PADDING.length + data.length);
-
- System.arraycopy(HASH_PADDING, 0, apdu, 5, HASH_PADDING.length);
- System.arraycopy(data, 0, apdu, 5 + HASH_PADDING.length, data.length);
-
- byte[] securedAPDU = getSecuredAPDU(apdu);
-
- CommandAPDU command = new CommandAPDU(securedAPDU);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() != 0x9000) {
-
- throw new CardException("Unexpected response from card: "
- + Integer.toHexString(resp.getSW()));
- }
-
- byte[] signatureValue = resp.getData();
- byte[] decryptedSignatureValueWithSW = verifyAndDecryptSecuredResponseAPDU(signatureValue);
-
- int len = decryptedSignatureValueWithSW.length;
- if (decryptedSignatureValueWithSW[len - 2] == (byte) 0x90
- && decryptedSignatureValueWithSW[len - 1] == (byte) 0x00) {
-
- log.debug("OK");
-
- byte[] sigVal = new byte[decryptedSignatureValueWithSW.length - 2];
- System.arraycopy(decryptedSignatureValueWithSW, 0, sigVal, 0,
- decryptedSignatureValueWithSW.length - 2);
-
- log.debug("Computed signature value: " + formatByteArray(sigVal));
- return sigVal;
-
- } else {
-
- log.debug("FAILED");
- throw new CardException(
- "Error creating signature on card: "
- + Integer
- .toHexString(decryptedSignatureValueWithSW[len - 2])
- + " "
- + Integer
- .toHexString(decryptedSignatureValueWithSW[len - 1]));
- }
-
- }
-
- private byte[] getSecuredAPDU(byte[] apdu) throws CardException {
-
- // TODO: Handle APDU format: CLA INS P1 P2 Lc Data Le (not required by this implementation)
-
- if (apdu == null || apdu.length < 4) {
-
- throw new CardException("Invalid APDU to secure.");
- }
-
- if (apdu.length < 6) {
-
- // TODO: Handle APDU format: CLA INS P1 P2 (not required by this implementation)
-
- if (apdu.length == 5) {
-
- // handle case CLA INS P1 P2 LE
-
- byte encCLA = (byte) (apdu[0] | (byte) 0x0C);
- byte[] encHeader = new byte[] { encCLA, apdu[1], apdu[2],
- apdu[3] };
- byte[] paddedHeader = applyPadding(BLOCK_LENGTH, encHeader);
-
- byte[] leField = new byte[3];
- leField[0] = (byte) 0x97;
- leField[1] = (byte) 0x01;
- leField[2] = apdu[4];
-
- byte[] macData = new byte[paddedHeader.length + leField.length];
- System.arraycopy(paddedHeader, 0, macData, 0,
- paddedHeader.length);
- System.arraycopy(leField, 0, macData, paddedHeader.length,
- leField.length);
-
- byte[] paddedMacData = applyPadding(BLOCK_LENGTH, macData);
-
- incrementSSC();
-
- byte[] mac = calculateAPDUMAC(paddedMacData, kMac, this.ssc);
-
- byte[] encapsulatedMac = new byte[mac.length + 2];
- encapsulatedMac[0] = (byte) 0x8E;
- encapsulatedMac[1] = (byte) mac.length;
- System.arraycopy(mac, 0, encapsulatedMac, 2, mac.length);
-
- byte[] completeMessage = new byte[5 + leField.length
- + encapsulatedMac.length];
- completeMessage[0] = encCLA;
- completeMessage[1] = apdu[1];
- completeMessage[2] = apdu[2];
- completeMessage[3] = apdu[3];
- completeMessage[4] = (byte) (encapsulatedMac.length + leField.length);
- System
- .arraycopy(leField, 0, completeMessage, 5,
- leField.length);
- System.arraycopy(encapsulatedMac, 0, completeMessage,
- 5 + leField.length, encapsulatedMac.length);
-
- return completeMessage;
- }
- }
-
- // case data field available (assuming that Le field is missing)
-
- byte cla = apdu[0];
- byte ins = apdu[1];
- byte p1 = apdu[2];
- byte p2 = apdu[3];
- byte lc = apdu[4];
-
- byte[] data = new byte[lc];
- System.arraycopy(apdu, 5, data, 0, lc);
-
- byte[] paddedData = applyPadding(BLOCK_LENGTH, data);
-
- byte[] encrypted = null;
-
- try {
-
- encrypted = perform3DESCipherOperation(paddedData, kEnc,
- Cipher.ENCRYPT_MODE);
-
- } catch (Exception e) {
-
- throw new CardException("Error encrypting APDU.", e);
- }
-
- byte[] encapsulated = new byte[encrypted.length + 3];
- encapsulated[0] = (byte) 0x87;
- encapsulated[1] = (byte) (encrypted.length + 1);
- encapsulated[2] = (byte) 0x01;
- System.arraycopy(encrypted, 0, encapsulated, 3, encrypted.length);
-
- // calculate MAC
- byte encCLA = (byte) (cla | (byte) 0x0C);
- byte[] encHeader = new byte[] { encCLA, ins, p1, p2 };
- byte[] paddedHeader = applyPadding(BLOCK_LENGTH, encHeader);
-
- byte[] headerAndData = new byte[paddedHeader.length
- + encapsulated.length];
- System
- .arraycopy(paddedHeader, 0, headerAndData, 0,
- paddedHeader.length);
- System.arraycopy(encapsulated, 0, headerAndData, paddedHeader.length,
- encapsulated.length);
-
- byte[] paddedHeaderAndData = applyPadding(BLOCK_LENGTH, headerAndData);
-
- incrementSSC();
-
- byte[] mac = calculateAPDUMAC(paddedHeaderAndData, kMac, this.ssc);
-
- byte[] encapsulatedMac = new byte[mac.length + 2];
- encapsulatedMac[0] = (byte) 0x8E;
- encapsulatedMac[1] = (byte) mac.length;
- System.arraycopy(mac, 0, encapsulatedMac, 2, mac.length);
-
- byte[] completeMessage = new byte[5 + encapsulated.length
- + encapsulatedMac.length];
- completeMessage[0] = encCLA;
- completeMessage[1] = ins;
- completeMessage[2] = p1;
- completeMessage[3] = p2;
- completeMessage[4] = (byte) (encapsulated.length + encapsulatedMac.length);
- System.arraycopy(encapsulated, 0, completeMessage, 5,
- encapsulated.length);
- System.arraycopy(encapsulatedMac, 0, completeMessage,
- 5 + encapsulated.length, encapsulatedMac.length);
-
- return completeMessage;
- }
-
- private byte[] verifyAndDecryptSecuredResponseAPDU(byte[] securedAPDU)
- throws CardException {
-
- byte[] data = new byte[securedAPDU.length - 10];
- byte[] commandResponse = new byte[4];
- byte[] obtainedMac = new byte[4];
-
- System.arraycopy(securedAPDU, 0, data, 0, data.length);
- System.arraycopy(securedAPDU, data.length, commandResponse, 0,
- commandResponse.length);
- System.arraycopy(securedAPDU, data.length + commandResponse.length + 2,
- obtainedMac, 0, obtainedMac.length);
-
- byte[] macData = new byte[data.length + commandResponse.length];
- System.arraycopy(data, 0, macData, 0, data.length);
- System.arraycopy(commandResponse, 0, macData, data.length,
- commandResponse.length);
-
- byte[] paddedMacData = applyPadding(BLOCK_LENGTH, macData);
-
- incrementSSC();
-
- byte[] mac = calculateAPDUMAC(paddedMacData, this.kMac, this.ssc);
-
- if (!Arrays.equals(mac, obtainedMac)) {
-
- throw new CardException("Unable to verify MAC of Response APDU.");
- }
-
- if (data.length > 0) {
-
- byte[] data2decrypt = new byte[data.length
- - getCutOffLength(data, BLOCK_LENGTH)];
- System.arraycopy(data, getCutOffLength(data, BLOCK_LENGTH),
- data2decrypt, 0, data2decrypt.length);
-
- byte[] plainData = null;
-
- try {
- plainData = perform3DESCipherOperation(data2decrypt, this.kEnc,
- Cipher.DECRYPT_MODE);
- } catch (Exception e) {
- throw new CardException("Unable to decrypt data.", e);
- }
-
- byte[] unpaddedData = removePadding(plainData);
-
- byte[] result = new byte[unpaddedData.length + 2];
- System.arraycopy(unpaddedData, 0, result, 0, unpaddedData.length);
- result[result.length - 2] = commandResponse[2];
- result[result.length - 1] = commandResponse[3];
-
- return result;
- } else {
-
- // no data in response
- byte[] result = new byte[2];
- result[result.length - 2] = commandResponse[2];
- result[result.length - 1] = commandResponse[3];
- return result;
- }
- }
-
- private byte[] perform3DESCipherOperation(byte[] data, byte[] keyData,
- int mode) throws NoSuchAlgorithmException, NoSuchProviderException,
- NoSuchPaddingException, InvalidKeyException,
- InvalidAlgorithmParameterException, ShortBufferException,
- IllegalBlockSizeException, BadPaddingException {
-
- byte[] full3DESKey = new byte[24];
- System.arraycopy(keyData, 0, full3DESKey, 0, 16);
- System.arraycopy(keyData, 0, full3DESKey, 16, 8);
-
- SecretKeySpec key = new SecretKeySpec(full3DESKey, "DESede");
- IvParameterSpec ivSpec = new IvParameterSpec(IV);
-
- Cipher cipher = Cipher.getInstance("DESede/CBC/NoPadding");
-
- cipher.init(mode, key, ivSpec);
- byte[] cipherText = new byte[cipher.getOutputSize(data.length)];
- int ctLength = cipher.update(data, 0, data.length, cipherText, 0);
- ctLength += cipher.doFinal(cipherText, ctLength);
- return cipherText;
-
- }
-
- private byte[] calculateAPDUMAC(byte[] data, byte[] key, byte[] ssc)
- throws CardException {
-
- SecretKeySpec desSingleKey = new SecretKeySpec(key, 0, BLOCK_LENGTH,
- "DES");
- Cipher singleDesCipher;
- try {
- singleDesCipher = Cipher.getInstance("DES/CBC/NoPadding");
- } catch (Exception e) {
-
- throw new CardException("Error creating DES cipher instance.", e);
- }
-
- // Calculate the first n - 1 block.
- IvParameterSpec ivSpec;
- ivSpec = new IvParameterSpec(IV);
- int dataLen = data.length;
-
- try {
- singleDesCipher.init(Cipher.ENCRYPT_MODE, desSingleKey, ivSpec);
- } catch (Exception e) {
- throw new CardException("Error initializing DES cipher.", e);
- }
- byte[] result;
- try {
- result = singleDesCipher.doFinal(ssc);
- } catch (Exception e) {
- throw new CardException("Error applying DES cipher.", e);
- }
-
- byte[] dataBlock = new byte[BLOCK_LENGTH];
-
- for (int i = 0; i < dataLen - BLOCK_LENGTH; i = i + BLOCK_LENGTH) {
-
- System.arraycopy(data, i, dataBlock, 0, BLOCK_LENGTH);
- byte[] input = xorByteArrays(result, dataBlock);
-
- try {
- result = singleDesCipher.doFinal(input);
- } catch (Exception e) {
- throw new CardException("Error applying DES cipher.", e);
- }
- }
-
- // calculate the last block with 3DES
- byte[] fullKey = new byte[24];
- System.arraycopy(key, 0, fullKey, 0, 16);
- System.arraycopy(key, 0, fullKey, 16, 8);
-
- SecretKeySpec desKey = new SecretKeySpec(fullKey, "DESede");
- Cipher cipher;
- try {
- cipher = Cipher.getInstance("DESede/CBC/NoPadding");
- } catch (Exception e) {
- throw new CardException("Error getting 3DES cipher instance.", e);
- }
-
- ivSpec = new IvParameterSpec(IV);
- try {
- cipher.init(Cipher.ENCRYPT_MODE, desKey, ivSpec);
- } catch (Exception e) {
- throw new CardException("Error initializing 3DES cipher.", e);
- }
-
- System.arraycopy(data, data.length - BLOCK_LENGTH, dataBlock, 0,
- BLOCK_LENGTH);
- byte[] input = xorByteArrays(result, dataBlock);
-
- byte[] mac = new byte[4];
-
- try {
-
- result = cipher.doFinal(input);
-
- } catch (Exception e) {
- throw new CardException("Error applying 3DES cipher.", e);
- }
-
- System.arraycopy(result, 0, mac, 0, 4);
- return mac;
- }
-
- private byte[] executeSendTerminalChallenge(CardChannel channel,
- byte[] challenge) throws CardException {
-
- // send challenge to card
- CommandAPDU command = new CommandAPDU((byte) 0x00, (byte) 0x88,
- (byte) 0x00, (byte) 0x00, challenge);
- ResponseAPDU resp = channel.transmit(command);
-
- byte[] data = null;
-
- if (resp.getSW() == 0x9000) {
-
- data = resp.getData();
-
- } else {
-
- throw new CardException("Invalid response to terminal challenge: "
- + Integer.toHexString(resp.getSW()));
- }
-
- return data;
- }
-
- private byte[] readFromCard(CardChannel channel, byte offsetHi,
- byte offsetLo, byte numBytes) throws CardException {
-
- byte[] apdu = new byte[] {
-
- (byte) 0x00, (byte) 0xB0, offsetHi, offsetLo, numBytes };
-
- byte[] securedAPDU = getSecuredAPDU(apdu);
-
- CommandAPDU command = new CommandAPDU(securedAPDU);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() != 0x9000) {
-
- throw new CardException("Unexpected reponse from card: "
- + Integer.toHexString(resp.getSW()));
- }
-
- byte[] data = resp.getData();
-
- byte[] decryptedResponse = verifyAndDecryptSecuredResponseAPDU(data);
-
- return decryptedResponse;
-
- }
-
- public int executeSecurePINVerify(CardChannel channel, byte[] apdu)
- throws CardException {
-
- byte[] securedAPDU = getSecuredAPDU(apdu);
-
- log.debug("Verifiying PIN..");
-
- CommandAPDU command = new CommandAPDU(securedAPDU);
-
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() == 0x9000) {
-
- byte[] securedResponseData = resp.getData();
-
- byte[] plainData = verifyAndDecryptSecuredResponseAPDU(securedResponseData);
-
- if (plainData.length == 2) {
-
- return getSWAsInt(plainData);
- } else {
-
- throw new CardException(
- "Unexpected response to verify PIN APDU: "
- + formatByteArray(plainData));
- }
- } else {
-
- throw new CardException("Unexpected response to verify PIN APDU: "
- + Integer.toHexString(resp.getSW()));
- }
- }
-
- public byte[] executeSecureReadBinary(CardChannel channel, byte lengthHi,
- byte lengthLo) throws CardException {
-
- log.debug("Executing secure read binary..");
-
- ByteArrayOutputStream bof = new ByteArrayOutputStream();
-
- int bytes2read = (lengthHi * 256) + lengthLo;
- int bytesRead = 0;
-
- boolean done = false;
- boolean forceExit = false;
-
- int offset = 0;
- int len = 0;
-
- while (!done) {
-
- if (bytes2read - bytesRead > 0xef) {
- len = 0xef;
- } else {
- len = bytes2read - bytesRead;
- }
-
- byte[] offsetBytes = intToHex(offset);
- byte[] decryptedResponse = readFromCard(channel, offsetBytes[0],
- offsetBytes[1], (byte) len);
-
- if (decryptedResponse.length == 2
- && decryptedResponse[0] == (byte) 0x6C) {
-
- // handle case: card returns 6CXX (wrong number of bytes
- // requested)
- // This happens sometimes with the DNIe in the final iteration
-
- decryptedResponse = readFromCard(channel, offsetBytes[0],
- offsetBytes[1], decryptedResponse[1]);
-
- forceExit = true;
- }
-
- byte[] decryptedData = new byte[decryptedResponse.length - 2];
- System.arraycopy(decryptedResponse, 0, decryptedData, 0,
- decryptedResponse.length - 2);
-
- try {
- bof.write(decryptedData);
- } catch (IOException e) {
- throw new CardException("Error reading data from card", e);
- }
-
- bytesRead = bytesRead + decryptedData.length;
- offset = bytesRead;
-
- if (bytesRead == bytes2read) {
-
- done = true;
- }
-
- if (forceExit) {
-
- break;
- }
- }
-
- return bof.toByteArray();
- }
-
- private byte[] executeRequestCardChallenge(CardChannel channel)
- throws CardException {
-
- CommandAPDU command = new CommandAPDU((byte) 0x00, (byte) 0x84,
- (byte) 0x00, (byte) 0x00, (byte) BLOCK_LENGTH);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() != 0x9000) {
-
- throw new CardException(
- "Invalid response from card upon challenge request: "
- + Integer.toHexString(resp.getSW()));
- }
-
- return resp.getData();
-
- }
-
- private void performExternalAuthentication(CardChannel channel)
- throws CardException {
-
- log.debug("Starting external authentication..");
-
- byte[] cardChallenge = executeRequestCardChallenge(channel);
-
- this.rndIcc = cardChallenge;
-
- byte[] prnd2 = getRandomBytes(this.prndLength);
- byte[] kIfd = getRandomBytes(32);
-
- // compute hash
- byte[] hashData = new byte[prnd2.length + kIfd.length
- + cardChallenge.length + BLOCK_LENGTH];
-
- System.arraycopy(prnd2, 0, hashData, 0, prnd2.length);
- System.arraycopy(kIfd, 0, hashData, prnd2.length, kIfd.length);
- System.arraycopy(cardChallenge, 0, hashData,
- prnd2.length + kIfd.length, cardChallenge.length);
-
- int snPadding = BLOCK_LENGTH - snIcc.length;
-
- for (int i = 0; i < snPadding; i++) {
-
- hashData[prnd2.length + kIfd.length + cardChallenge.length + i] = (byte) 0x00;
- }
-
- System.arraycopy(snIcc, 0, hashData, prnd2.length + kIfd.length
- + cardChallenge.length + snPadding, snIcc.length);
-
- byte[] digest = computeSHA1Hash(hashData);
-
- // prepare data to be encrypted
- byte[] plain = new byte[2 + prnd2.length + kIfd.length + digest.length];
-
- plain[0] = (byte) 0x6A;
-
- System.arraycopy(prnd2, 0, plain, 1, prnd2.length);
- System.arraycopy(kIfd, 0, plain, 1 + prnd2.length, kIfd.length);
- System.arraycopy(digest, 0, plain, 1 + prnd2.length + kIfd.length,
- digest.length);
-
- plain[plain.length - 1] = (byte) 0xBC;
-
- // encrypt plain data
- RSAPrivateKey terminalPrivateKey = createRSAPrivateKey(TERMINAL_MODULO,
- TERMINAL_PRIVEXP);
-
- byte[] encResult = null;
- try {
- encResult = rsaEncrypt(terminalPrivateKey, plain);
- } catch (Exception e) {
- e.printStackTrace();
- throw new CardException("Error encrypting authentication data.", e);
- }
-
- // apply MIN function
- BigInteger sig = createUnsignedBigInteger(encResult);
- BigInteger mod = new BigInteger(TERMINAL_MODULO, 16);
-
- BigInteger diff = mod.subtract(sig);
- BigInteger sigMin = diff.min(sig);
-
- // encrypt with card public key
- PublicKey cardPubKey = null;
-
- X509Certificate cert = createCertificate(componentCert);
- cardPubKey = cert.getPublicKey();
-
- byte[] authData = null;
- try {
- authData = rsaEncrypt(cardPubKey, sigMin.toByteArray());
- } catch (Exception e) {
- e.printStackTrace();
- throw new CardException("Error encrypting authentication data.");
- }
-
- log.debug("Sending computed cryptogram to card..");
- // send auth data to card
- // BE CAREFUL WITH THAT! EXT-AUTH METHOD MAY GET BLOCKED!
- if (executeExternalAuthenticate(channel, authData)) {
-
- this.kifd = kIfd;
- log.debug("External authentication succeeded.");
- } else {
- log.error("External authentication failed.");
- throw new CardException("External Authentication failed.");
- }
-
- }
-
- private boolean executeExternalAuthenticate(CardChannel channel,
- byte[] authData) throws CardException {
-
- CommandAPDU command = new CommandAPDU((byte) 0x00, (byte) 0x82,
- (byte) 0x00, (byte) 0x00, authData);
- ResponseAPDU resp = channel.transmit(command);
-
- return resp.getSW() == 0x9000;
- }
-
- private void performInternalAuthentication(CardChannel channel)
- throws CardException {
-
- log.debug("Starting internal authentication..");
-
- byte[] randomBytes = getRandomBytes(BLOCK_LENGTH);
- byte[] challengeData = new byte[randomBytes.length
- + TERMINAL_CHALLENGE_TAIL.length];
-
- this.rndIfd = randomBytes;
-
- System.arraycopy(randomBytes, 0, challengeData, 0, randomBytes.length);
- System.arraycopy(TERMINAL_CHALLENGE_TAIL, 0, challengeData,
- randomBytes.length, TERMINAL_CHALLENGE_TAIL.length);
-
- byte[] data = executeSendTerminalChallenge(channel, challengeData);
-
- // verify response
- boolean ok = verifyCardResponse(data);
-
- log.debug("Internal Authentiction succeeded: " + ok);
-
- if (!ok) {
-
- log.debug("Internal Authentiction failed - cancel.");
- throw new CardException("Internal authentication failed");
- }
-
- }
-
- private void verifyCertificates() throws CardException {
-
- // This method verifies the card's component and intermediate
- // certificates cryptographically.
-
- RSAPublicKey rootPubKey = createRSAPublicKey(ROOT_CA_MODULO,
- ROOT_CA_PUBEXP);
-
- X509Certificate intermediate = createCertificate(intermediateCert);
- X509Certificate component = createCertificate(componentCert);
-
- try {
- component.verify(intermediate.getPublicKey());
- intermediate.verify(rootPubKey);
- } catch (Exception e) {
-
- throw new CardException("Certificate verification failed.", e);
- }
- }
-
- private boolean verifyCardResponse(byte[] resp) throws CardException {
-
- log.debug("Verifying card response..");
-
- byte[] challenge = this.rndIfd;
- byte[] response = resp;
-
- // decrypt response with terminal private key
- byte[] plain = null;
- RSAPrivateKey terminalPrivateKey = createRSAPrivateKey(TERMINAL_MODULO,
- TERMINAL_PRIVEXP);
- try {
- plain = rsaDecrypt(terminalPrivateKey, response);
- } catch (Exception e) {
- throw new CardException("Error decrypting card response.", e);
- }
-
- PublicKey pubKey = null;
-
- X509Certificate cert = createCertificate(componentCert);
- pubKey = cert.getPublicKey();
-
- byte[] sig = null;
-
- try {
- sig = rsaDecrypt(pubKey, plain);
-
- } catch (Exception e) {
-
- throw new CardException(
- "Error decrypting card response with card's public key", e);
- }
-
- if (sig == null) {
-
- throw new CardException("Invalid decryption result: null.");
- } else {
-
- if (sig[0] == (byte) 0x6A && sig[sig.length - 1] == (byte) 0xBC) {
-
- // Obtained response from card was obviously SIG - nothing else
- // to do here so far
-
- } else {
-
- // Obtained response from card was probably N.ICC-SIG -
- // compute N.ICC-SIG and decrypt result again
-
- RSAPublicKey rsaPubKey = (RSAPublicKey) pubKey;
- BigInteger mod = rsaPubKey.getModulus();
- BigInteger sigVal = createUnsignedBigInteger(plain);
-
- BigInteger substractionResult = mod.subtract(sigVal);
- byte[] encrypted = substractionResult.toByteArray();
-
- // necessary if substraction result contains leading
- // zero byte
- byte[] trimmed = new byte[128];
- System.arraycopy(encrypted, encrypted.length - 128, trimmed, 0,
- 128);
-
- try {
- sig = rsaDecrypt(pubKey, trimmed);
-
- } catch (Exception e) {
-
- throw new CardException("Error decrypting card response.",
- e);
- }
- }
- }
-
- // extract data from decrypted response
- byte[] hash = new byte[20];
- byte[] kIcc = new byte[32];
- byte[] prnd1 = new byte[sig.length - 2 - 20 - 32];
-
- this.prndLength = prnd1.length;
-
- System.arraycopy(sig, 1, prnd1, 0, prnd1.length); // 1 byte offset due
- // to 6A padding
- System.arraycopy(sig, prnd1.length + 1, kIcc, 0, kIcc.length);
- System.arraycopy(sig, prnd1.length + kIcc.length + 1, hash, 0,
- hash.length);
-
- // verify hash
- byte[] hashData = new byte[prnd1.length + kIcc.length
- + challenge.length + TERMINAL_CHALLENGE_TAIL.length];
-
- System.arraycopy(prnd1, 0, hashData, 0, prnd1.length);
- System.arraycopy(kIcc, 0, hashData, prnd1.length, kIcc.length);
- System.arraycopy(challenge, 0, hashData, prnd1.length + kIcc.length,
- challenge.length);
- System.arraycopy(TERMINAL_CHALLENGE_TAIL, 0, hashData, prnd1.length
- + kIcc.length + challenge.length,
- TERMINAL_CHALLENGE_TAIL.length);
-
- byte[] digest = computeSHA1Hash(hashData);
-
- boolean internalAuthResult = Arrays.equals(hash, digest);
-
- if (internalAuthResult) {
-
- // if verification succeeded, remember kicc for subsequent channel
- // key derivation
- this.kicc = kIcc;
- }
-
- return internalAuthResult;
-
- }
-
- private byte[] computeSHA1Hash(byte[] data) throws CardException {
-
- try {
- MessageDigest sha = MessageDigest.getInstance("SHA");
-
- sha.update(data);
- return sha.digest();
-
- } catch (NoSuchAlgorithmException e) {
- throw new CardException("Error computing SHA1 hash.", e);
- }
-
- }
-
- private byte[] executeGetChipInfo(CardChannel channel) throws CardException {
-
- // get chip info - read out card serial number
- log.debug("Getting chip info..");
- CommandAPDU command = new CommandAPDU(APDU_GET_CHIP_INFO);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() == 0x9000) {
- log.debug("OK.");
- } else {
- log.debug("FAILED: " + Integer.toHexString(resp.getSW()));
- }
-
- return resp.getData();
- }
-
- private byte[] executeSelect(CardChannel channel, byte[] id)
- throws CardException {
-
- log.debug("Selecting DF or EF..");
-
- byte[] apdu = new byte[APDU_SELECT_EF_DF_HEADER.length + 1 + id.length];
- System.arraycopy(APDU_SELECT_EF_DF_HEADER, 0, apdu, 0,
- APDU_SELECT_EF_DF_HEADER.length);
- apdu[APDU_SELECT_EF_DF_HEADER.length] = (byte) id.length;
- System.arraycopy(id, 0, apdu, APDU_SELECT_EF_DF_HEADER.length + 1,
- id.length);
-
- CommandAPDU command = new CommandAPDU(apdu);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() != 0x9000) {
-
- throw new CardException("Unexpected response to Select Command: "
- + Integer.toHexString(resp.getSW()));
- }
-
- return resp.getData();
-
- }
-
- private byte[] executeReadSecureChannelCertificate(CardChannel channel,
- byte[] certId) throws CardException {
-
- log.debug("Reading certificate..");
-
- byte[] fci = executeSelect(channel, certId);
-
- byte certLenHigh;
- byte certLenLow;
-
- if (fci != null && fci.length >= 7) {
-
- certLenHigh = fci[7];
- certLenLow = fci[8];
- } else {
-
- throw new CardException("Invalid FCI obtained from card.");
- }
-
- ByteArrayOutputStream bof = new ByteArrayOutputStream();
-
- int bytes2read = (certLenHigh * 256) + certLenLow;
- int bytesRead = 0;
-
- boolean done = false;
- int offset = 0;
- int len = 0;
-
- while (!done) {
-
- if (bytes2read - bytesRead > 255) {
- len = 255;
- } else {
- len = bytes2read - bytesRead;
- }
-
- byte[] offsetBytes = intToHex(offset);
-
- byte[] apdu = new byte[5];
- System.arraycopy(APDU_READ_BINARY, 0, apdu, 0,
- APDU_READ_BINARY.length);
- apdu[2] = offsetBytes[0];
- apdu[3] = offsetBytes[1];
- apdu[4] = (byte) len;
-
- CommandAPDU command = new CommandAPDU(apdu);
- ResponseAPDU resp = channel.transmit(command);
-
- byte[] certData = resp.getData();
-
- try {
- bof.write(certData);
- } catch (IOException e) {
- throw new CardException("Error reading certificate from card",
- e);
- }
-
- bytesRead = bytesRead + certData.length;
- offset = bytesRead;
-
- if (bytesRead == bytes2read) {
-
- done = true;
- }
- }
-
- log.debug("OK.");
-
- return bof.toByteArray();
- }
-
- private void executeManageSecurityEnvironment(CardChannel channel, byte p1,
- byte p2, byte[] data) throws CardException {
-
- // MSE
- CommandAPDU command = new CommandAPDU((byte) 0x00, (byte) 0x22, p1, p2,
- data);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() != 0x9000) {
-
- throw new CardException(
- "Unexpected response from card during preparation of secure channel credentials: "
- + Integer.toHexString(resp.getSW()));
- }
- }
-
- private void executePerformSecurityOperation(CardChannel channel,
- byte[] data) throws CardException {
-
- // PSO - load intermediate certificate
- CommandAPDU command = new CommandAPDU((byte) 0x00, (byte) 0x2A,
- (byte) 0x00, (byte) 0xAE, data);
- ResponseAPDU resp = channel.transmit(command);
-
- if (resp.getSW() != 0x9000) {
-
- throw new CardException(
- "Unexpected response from card during preparation of secure channel credentials: "
- + Integer.toHexString(resp.getSW()));
- }
-
- }
-
- private void loadTerminalCertsAndSelectKeys(CardChannel channel)
- throws CardException {
-
- log
- .debug("Loading terminal certificates and selecting appropriate keys to establish secure channel..");
-
- // MSE
- executeManageSecurityEnvironment(channel, (byte) 0x81, (byte) 0xB6,
- APDU_DATA_MSE_LOAD_TERMINAL_CERTS);
-
- // PSO - load intermediate certificate
- executePerformSecurityOperation(channel, C_CV_CA);
-
- // MSE
- executeManageSecurityEnvironment(channel, (byte) 0x81, (byte) 0xB6, CHR);
-
- // PSO - load terminal certificate
- executePerformSecurityOperation(channel, C_CV_IFD);
-
- // MSE - select keys
- executeManageSecurityEnvironment(channel, (byte) 0xC1, (byte) 0xA4,
- KEY_SELECTOR);
-
- log.debug("OK.");
-
- }
-
- private void calculateChannelKeys() throws CardException {
-
- log.debug("Generating channel keys..");
-
- if (this.kicc == null || this.kifd == null) {
-
- throw new CardException(
- "Required data for deriving keys not available.");
- }
-
- if (this.kicc.length != this.kifd.length) {
-
- throw new CardException(
- "Required data for deriving keys is invalid.");
- }
-
- byte[] kifdicc = new byte[this.kicc.length];
-
- for (int i = 0; i < kifdicc.length; i++) {
-
- kifdicc[i] = (byte) (this.kicc[i] ^ this.kifd[i]);
- }
-
- byte[] kEncHashData = new byte[kifdicc.length
- + KENC_COMPUTATION_TAIL.length];
- byte[] kMacHashData = new byte[kifdicc.length
- + KMAC_COMPUTATION_TAIL.length];
-
- System.arraycopy(kifdicc, 0, kEncHashData, 0, kifdicc.length);
- System.arraycopy(kifdicc, 0, kMacHashData, 0, kifdicc.length);
-
- System.arraycopy(KENC_COMPUTATION_TAIL, 0, kEncHashData,
- kifdicc.length, KENC_COMPUTATION_TAIL.length);
- System.arraycopy(KMAC_COMPUTATION_TAIL, 0, kMacHashData,
- kifdicc.length, KMAC_COMPUTATION_TAIL.length);
-
- byte[] hashEnc = computeSHA1Hash(kEncHashData);
- byte[] hashMac = computeSHA1Hash(kMacHashData);
-
- this.kEnc = Arrays.copyOfRange(hashEnc, 0, 16);
- this.kMac = Arrays.copyOfRange(hashMac, 0, 16);
-
- // compute sequence counter SSC
- if (this.rndIcc == null || this.rndIfd == null
- || this.rndIcc.length < 4 || this.rndIfd.length < 4) {
-
- throw new CardException("Data required to compute SSC not valid.");
- }
-
- this.ssc = new byte[BLOCK_LENGTH];
-
- System.arraycopy(this.rndIcc, this.rndIcc.length - 4, this.ssc, 0, 4);
- System.arraycopy(this.rndIfd, this.rndIfd.length - 4, this.ssc, 4, 4);
-
- log.debug("OK.");
-
- }
-
- private String formatByteArray(byte[] data) {
-
- StringBuffer buf = new StringBuffer();
-
- for (int i = 0; i < data.length; i++) {
-
- String s = Integer.toHexString(data[i]);
-
- if (s.length() == 1) {
- s = "0" + s;
- }
-
- if (s.length() > 2) {
- s = s.substring(s.length() - 2);
- }
-
- buf.append(s + " ");
- }
-
- return buf.toString();
- }
-
- private byte[] intToHex(int val) throws CardException {
-
- String hexString = Integer.toHexString(val);
-
- if (hexString.length() > 4) {
- throw new CardException(
- "Unexpected input length to inToHex() utility method: "
- + hexString.length());
- }
-
- byte high = 0x00;
- byte low = 0x00;
-
- if (hexString.length() <= 2) {
-
- low = (byte) Integer.parseInt(hexString, 16);
- } else {
-
- low = (byte) Integer.parseInt(hexString.substring(hexString
- .length() - 2), 16);
- high = (byte) Integer.parseInt(hexString.substring(0, hexString
- .length() - 2), 16);
- }
-
- return new byte[] { high, low };
- }
-
- private byte[] getRandomBytes(int length) {
-
- byte[] result = new byte[length];
-
- for (int i = 0; i < length; i++) {
-
- Random rand = new Random();
- byte current = (byte) rand.nextInt(255);
- result[i] = current;
- }
-
- return result;
- }
-
- private BigInteger createUnsignedBigInteger(byte[] data) {
-
- byte[] unsigned = new byte[data.length+1];
- unsigned[0] = (byte)0x00;
- System.arraycopy(data, 0, unsigned, 1, data.length);
-
- return new BigInteger(unsigned);
-
- }
-
- private RSAPrivateKey createRSAPrivateKey(String mod, String privExponent)
- throws CardException {
-
- BigInteger modulus = new BigInteger(mod, 16);
- BigInteger privExp = new BigInteger(privExponent, 16);
-
- KeyFactory fac;
- RSAPrivateKey key;
- try {
- fac = KeyFactory.getInstance("RSA");
- KeySpec spec = new RSAPrivateKeySpec(modulus, privExp);
- key = (RSAPrivateKey) fac.generatePrivate(spec);
- } catch (Exception e) {
-
- throw new CardException("Unable to create private key.", e);
- }
-
- return key;
- }
-
- private RSAPublicKey createRSAPublicKey(String mod, String pubExponent)
- throws CardException {
-
- BigInteger modulus = new BigInteger(mod, 16);
- BigInteger pubExp = new BigInteger(pubExponent, 16);
-
- KeyFactory fac;
- RSAPublicKey key;
- try {
- fac = KeyFactory.getInstance("RSA");
- KeySpec spec = new RSAPublicKeySpec(modulus, pubExp);
- key = (RSAPublicKey) fac.generatePublic(spec);
- } catch (Exception e) {
-
- throw new CardException("Unable to create public key.", e);
- }
-
- return key;
- }
-
- private byte[] rsaEncrypt(Key key, byte[] data)
- throws NoSuchAlgorithmException, NoSuchPaddingException,
- InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
-
- Cipher rsa = Cipher.getInstance("RSA/ECB/NoPadding");
- rsa.init(Cipher.ENCRYPT_MODE, key);
- byte[] encrypted = rsa.doFinal(data);
-
- return encrypted;
-
- }
-
- private byte[] rsaDecrypt(Key key, byte[] cipher)
- throws NoSuchAlgorithmException, NoSuchPaddingException,
- InvalidKeyException, IllegalBlockSizeException, BadPaddingException {
-
- Cipher rsa = Cipher.getInstance("RSA/ECB/NoPadding");
- rsa.init(Cipher.DECRYPT_MODE, key);
- byte[] decrypted = rsa.doFinal(cipher);
-
- return decrypted;
- }
-
- private X509Certificate createCertificate(byte[] certData)
- throws CardException {
-
- try {
- InputStream inStream = new ByteArrayInputStream(certData);
- CertificateFactory cf = CertificateFactory.getInstance("X.509");
- X509Certificate certificate = (X509Certificate) cf
- .generateCertificate(inStream);
- inStream.close();
-
- return certificate;
-
- } catch (Exception e) {
-
- throw new CardException("Unable to create certificate.", e);
- }
- }
-
- private byte[] applyPadding(int blockSize, byte[] data) {
-
- // add mandatory 0x80
- byte[] extended = new byte[data.length + 1];
- System.arraycopy(data, 0, extended, 0, data.length);
- extended[extended.length - 1] = (byte) 0x80;
-
- if (extended.length % blockSize == 0) {
-
- return extended;
- }
-
- int requiredBlocks = ((int) (extended.length / blockSize) + 1);
-
- byte[] result = new byte[requiredBlocks * blockSize];
- Arrays.fill(result, (byte) 0x00);
- System.arraycopy(extended, 0, result, 0, extended.length);
-
- return result;
-
- }
-
- private void incrementSSC() {
-
- BigInteger ssc = new BigInteger(this.ssc);
- ssc = ssc.add(new BigInteger("1", 10));
- this.ssc = ssc.toByteArray();
- }
-
- private byte[] xorByteArrays(byte[] array1, byte[] array2)
- throws CardException {
-
- if (array1 == null || array2 == null || array1.length != array2.length) {
-
- throw new CardException("Cannot xor byte arrays - invalid input.");
- }
-
- byte[] result = new byte[array1.length];
-
- for (int i = 0; i < array1.length; i++) {
-
- result[i] = (byte) (array1[i] ^ array2[i]);
- }
-
- return result;
- }
-
- private int getCutOffLength(byte[] data, int blockSize)
- throws CardException {
-
- int len = data.length % blockSize;
-
- // verify
- if (data[len - 1] == (byte) 0x01) {
-
- return len;
- } else {
- throw new CardException(
- "Unable to reconstruct encrypted datablock.");
- }
-
- }
-
- private byte[] removePadding(byte[] paddedData) throws CardException {
-
- for (int i = paddedData.length - 1; i >= 0; i--) {
-
- byte current = paddedData[i];
-
- if (current == (byte) 0x00) {
-
- continue;
- }
-
- if (current == (byte) 0x80) {
-
- // end of padding reached
- byte[] data = new byte[i];
- System.arraycopy(paddedData, 0, data, 0, i);
- return data;
-
- } else {
-
- throw new CardException("Wrong padding.");
- }
-
- }
-
- throw new CardException(
- "Error removing padding from data. Unexpected data format.");
-
- }
-
- public boolean isEstablished() {
- return established;
- }
-
- private int getSWAsInt(byte[] sw) throws CardException {
-
- if (sw.length != 2) {
-
- throw new CardException(
- "Cannot transform SW to innteger - invalid input length.");
- }
-
- int sw1 = (int) sw[0] < 0 ? (int) sw[0] + 256 : (int) sw[0];
- int sw2 = (int) sw[1] < 0 ? (int) sw[1] + 256 : (int) sw[1];
-
- return (sw1 * 256) + sw2;
-
- }
-
-}
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