diff options
Diffstat (limited to 'smccTest')
-rw-r--r-- | smccTest/src/main/java/at/gv/egiz/smcc/activation/Activation.java | 58 |
1 files changed, 51 insertions, 7 deletions
diff --git a/smccTest/src/main/java/at/gv/egiz/smcc/activation/Activation.java b/smccTest/src/main/java/at/gv/egiz/smcc/activation/Activation.java index 510b8b08..6dd3ccf6 100644 --- a/smccTest/src/main/java/at/gv/egiz/smcc/activation/Activation.java +++ b/smccTest/src/main/java/at/gv/egiz/smcc/activation/Activation.java @@ -16,6 +16,7 @@ import java.security.InvalidKeyException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; import java.security.NoSuchProviderException; +import java.security.SignatureException; import java.util.Arrays; import java.util.List; import java.util.Random; @@ -326,7 +327,7 @@ public class Activation { } } - void openSecureChannel(SecretKeySpec k_appl, byte[] cin) throws NoSuchAlgorithmException, UnsupportedEncodingException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException, InvalidAlgorithmParameterException, CardException, NoSuchProviderException, GeneralSecurityException { + void openSecureChannel(SecretKeySpec k_appl, byte[] cin) throws SignatureCardException, NoSuchAlgorithmException, UnsupportedEncodingException, NoSuchPaddingException, InvalidKeyException, IllegalBlockSizeException, BadPaddingException, InvalidAlgorithmParameterException, CardException, NoSuchProviderException, GeneralSecurityException { // function openSecureChannelG3(card, crypto, iccsn, kappl, kid, algo) { // if (typeof(kid) == "undefined") @@ -419,15 +420,10 @@ public class Activation { byte[] sendData = new byte[4*8+64]; System.arraycopy(rnd_ifd, 0, sendData, 0, 8); - System.out.println(toString(sendData)); System.arraycopy(ifd_id, 0, sendData, 8, 8); - System.out.println(toString(sendData)); System.arraycopy(rnd_icc, 0, sendData, 16, 8); - System.out.println(toString(sendData)); System.arraycopy(icc_id, 0, sendData, 24, 8); - System.out.println(toString(sendData)); System.arraycopy(kd_ifd, 0, sendData, 32, 64); - System.out.println(toString(sendData)); System.out.println("cryptogram input (" + sendData.length + "byte): " + toString(sendData)); @@ -466,16 +462,28 @@ public class Activation { byte[] c = new byte[cryptogram.length + mac.length]; System.arraycopy(cryptogram, 0, c, 0, cryptogram.length); System.arraycopy(mac, 0, c, cryptogram.length, mac.length); - System.out.println("MUTUAL AUTHENTICATE " + c.length + "bytes :" + toString(c)); + System.out.println("MUTUAL AUTHENTICATE (" + c.length + "bytes): " + toString(c)); cmdAPDU = new CommandAPDU(0x00, 0x82, 0x00, 0x81, c, 256); // 81->00 System.out.println(" cmd apdu " + toString(cmdAPDU.getBytes())); resp = channel.transmit(cmdAPDU); System.out.println(" -> " + toString(resp.getBytes()) + "\n"); + // // if (!crypto.verify(kmac, Crypto.DES_MAC_EMV, cryptogram.pad(Crypto.ISO9797_METHOD_2), mac)) { // throw new GPError("MutualAuthentication", GPError.CRYPTO_FAILED, 0, "Card MAC did not verify correctly"); // } + System.out.println("ICC Response: " + resp.getData().length + " Bytes"); + System.arraycopy(resp.getData(), 0, cryptogram, 0, 96); + System.arraycopy(resp.getData(), 96, mac, 0, 8); + + byte[] mac_ = RetailCBCMac.retailMac(cryptogram, "DES", "DESede", k_mac, 8, 8); + + if (!Arrays.equals(mac, mac_)) { + throw new SignatureCardException("Failed to authenticate card, invalid MAC " + toString(mac)); + } + System.out.println("icc MAC verified"); + // // plain = crypto.decrypt(kenc, Crypto.DES_CBC, cryptogram, new ByteString("0000000000000000", HEX)); @@ -488,10 +496,46 @@ public class Activation { // if (!plain.bytes(16, 8).equals(rndifd)) { // throw new GPError("MutualAuthentication", GPError.CRYPTO_FAILED, 0, "Card response does not contain matching RND.IFD"); // } + + tDES = Cipher.getInstance("3DES/CBC/NoPadding"); + tDES.init(Cipher.DECRYPT_MODE, k_enc, new IvParameterSpec(ZEROS)); + + System.out.println("Decrypt cryptogram (" + + cryptogram.length + " Bytes) " + toString(cryptogram)); + + byte[] plain = tDES.doFinal(cryptogram); + + if (!Arrays.equals(Arrays.copyOfRange(plain, 0, 8), rnd_icc)) { + throw new SignatureCardException("Failed to authenticate ICC, wrong RND.ICC " + + toString(Arrays.copyOfRange(plain, 0, 8))); + } else if (!Arrays.equals(Arrays.copyOfRange(plain, 16, 24), rnd_ifd)) { + throw new SignatureCardException("Failed to authenticate ICC, wrong RND.IFD " + + toString(Arrays.copyOfRange(plain, 16, 24))); + } + + System.out.println("successfully verified RND.ICC/IFD"); + + // // var kicc = plain.bytes(32, 64); // 32 -> 64 // keyinp = kicc.xor(kifd); // + + byte[] kd_icc = Arrays.copyOfRange(plain, 32, 96); + System.out.println("derive key input..."); + byte[] kinp = new byte[kd_ifd.length]; + for (int i = 0; i < kd_ifd.length; i++) { + +// System.out.println(Integer.toBinaryString(kd_icc[i])); +// System.out.println(Integer.toBinaryString(kd_ifd[i])); + + kinp[i] = (byte) (kd_icc[i] ^ kd_ifd[i]); + +// System.out.println(Integer.toBinaryString(kinp[i]) + "\n"); + + } + + // var hashin = keyinp.concat(new ByteString("00000001", HEX)); // var hashres = crypto.digest(Crypto.SHA_256, hashin); // var kencval = hashres.bytes(0, 24); |