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Diffstat (limited to 'src/cz/crcs/ectester/applet/AppletBase.java')
-rw-r--r--src/cz/crcs/ectester/applet/AppletBase.java42
1 files changed, 26 insertions, 16 deletions
diff --git a/src/cz/crcs/ectester/applet/AppletBase.java b/src/cz/crcs/ectester/applet/AppletBase.java
index 31ddbd9..7e79dd6 100644
--- a/src/cz/crcs/ectester/applet/AppletBase.java
+++ b/src/cz/crcs/ectester/applet/AppletBase.java
@@ -51,6 +51,7 @@ public abstract class AppletBase extends Applet {
public static final short SW_KA_NULL = (short) 0x0ee4;
public static final short SW_SIGNATURE_NULL = (short) 0x0ee5;
public static final short SW_OBJECT_NULL = (short) 0x0ee6;
+ public static final short SW_CANNOT_FIT = (short) 0x0ee7;
public static final short SW_Exception = (short) 0xff01;
public static final short SW_ArrayIndexOutOfBoundsException = (short) 0xff02;
public static final short SW_ArithmeticException = (short) 0xff03;
@@ -68,6 +69,10 @@ public abstract class AppletBase extends Applet {
public static final short BASE_222 = (short) 0x0222;
//
+ public static final short CDATA_BASIC = (short) 5;
+ public static final short CDATA_EXTENDED = (short) 7;
+
+ //
public static final byte[] VERSION = {'v', '0', '.', '3', '.', '2'};
public static final short ARRAY_LENGTH = 0x100;
@@ -78,6 +83,7 @@ public abstract class AppletBase extends Applet {
byte[] ramArray2 = null;
byte[] apduArray = null;
short apduEnd = 0;
+ short cdata = 0;
RandomData randomData = null;
@@ -99,7 +105,7 @@ public abstract class AppletBase extends Applet {
*/
short resetMemory = JCSystem.getAvailableMemory(JCSystem.MEMORY_TYPE_TRANSIENT_RESET);
short deselectMemory = JCSystem.getAvailableMemory(JCSystem.MEMORY_TYPE_TRANSIENT_DESELECT);
- byte memoryType = (resetMemory > deselectMemory) ? JCSystem.CLEAR_ON_RESET : JCSystem.CLEAR_ON_DESELECT;
+ byte memoryType = (resetMemory >= deselectMemory) ? JCSystem.CLEAR_ON_RESET : JCSystem.CLEAR_ON_DESELECT;
ramArray = JCSystem.makeTransientByteArray(ARRAY_LENGTH, memoryType);
ramArray2 = JCSystem.makeTransientByteArray(ARRAY_LENGTH, memoryType);
@@ -127,15 +133,24 @@ public abstract class AppletBase extends Applet {
if (cla == CLA_ECTESTERAPPLET) {
try {
if (ins == INS_BUFFER) {
- apduEnd += readAPDU(apdu, true);
+ short read = readAPDU(apdu, true);
+ if (read == -1) {
+ ISOException.throwIt(SW_CANNOT_FIT);
+ return;
+ }
+ apduEnd += read;
apdu.setOutgoingAndSend((short) 0, (short) 0);
return;
} else {
apduEnd = 0;
if (ins == INS_PERFORM) {
ins = apduArray[ISO7816.OFFSET_INS];
+ apdu.setIncomingAndReceive();
} else {
- readAPDU(apdu, false);
+ if (readAPDU(apdu, false) == -1) {
+ ISOException.throwIt(SW_CANNOT_FIT);
+ return;
+ }
}
}
@@ -228,13 +243,19 @@ public abstract class AppletBase extends Applet {
private short readAPDU(APDU apdu, boolean skipHeader) {
byte[] apduBuffer = apdu.getBuffer();
- short cdataOffset = getOffsetCdata(apdu);
/* How much stuff is in apduBuffer */
short read = apdu.setIncomingAndReceive();
+ short cdataOffset = getOffsetCdata(apdu);
read += cdataOffset;
/* Where to start reading from? */
- short offset = skipHeader ? cdataOffset : 0;
+ short offset = 0;
+ if (skipHeader) {
+ offset = cdataOffset;
+ cdata = CDATA_EXTENDED;
+ } else {
+ cdata = CDATA_BASIC;
+ }
/* How much stuff was really sent in this APDU? */
short total = (short) (getIncomingLength(apdu) + cdataOffset);
@@ -268,7 +289,6 @@ public abstract class AppletBase extends Applet {
* @return length of response
*/
private short insAllocateKA(APDU apdu) {
- short cdata = getOffsetCdata(apdu);
byte kaType = apduArray[cdata];
short sw = keyTester.allocateKA(kaType);
Util.setShort(apdu.getBuffer(), (short) 0, sw);
@@ -282,7 +302,6 @@ public abstract class AppletBase extends Applet {
* @return length of response
*/
private short insAllocateSig(APDU apdu) {
- short cdata = getOffsetCdata(apdu);
byte sigType = apduArray[cdata];
short sw = keyTester.allocateSig(sigType);
Util.setShort(apdu.getBuffer(), (short) 0, sw);
@@ -301,7 +320,6 @@ public abstract class AppletBase extends Applet {
*/
private short insAllocate(APDU apdu) {
byte keyPair = apduArray[ISO7816.OFFSET_P1];
- short cdata = getOffsetCdata(apdu);
short keyLength = Util.getShort(apduArray, cdata);
byte keyClass = apduArray[(short) (cdata + 2)];
@@ -347,7 +365,6 @@ public abstract class AppletBase extends Applet {
private short insSet(APDU apdu) {
byte keyPair = apduArray[ISO7816.OFFSET_P1];
byte curve = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
short params = Util.getShort(apduArray, cdata);
short len = 0;
@@ -375,7 +392,6 @@ public abstract class AppletBase extends Applet {
private short insTransform(APDU apdu) {
byte keyPair = apduArray[ISO7816.OFFSET_P1];
byte key = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
short params = Util.getShort(apduArray, cdata);
short transformation = Util.getShort(apduArray, (short) (cdata + 2));
@@ -424,7 +440,6 @@ public abstract class AppletBase extends Applet {
private short insExport(APDU apdu) {
byte keyPair = apduArray[ISO7816.OFFSET_P1];
byte key = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
short params = Util.getShort(apduArray, cdata);
short swOffset = 0;
@@ -455,7 +470,6 @@ public abstract class AppletBase extends Applet {
private short insECDH(APDU apdu) {
byte pubkey = apduArray[ISO7816.OFFSET_P1];
byte privkey = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
byte export = apduArray[cdata];
short transformation = Util.getShort(apduArray, (short) (cdata + 1));
byte type = apduArray[(short) (cdata + 3)];
@@ -477,7 +491,6 @@ public abstract class AppletBase extends Applet {
private short insECDH_direct(APDU apdu) {
byte privkey = apduArray[ISO7816.OFFSET_P1];
byte export = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
short transformation = Util.getShort(apduArray, cdata);
byte type = apduArray[(short) (cdata + 2)];
short length = Util.getShort(apduArray, (short) (cdata + 3));
@@ -499,7 +512,6 @@ public abstract class AppletBase extends Applet {
private short insECDSA(APDU apdu) {
byte keyPair = apduArray[ISO7816.OFFSET_P1];
byte export = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
byte sigType = apduArray[cdata];
short len = 0;
@@ -524,7 +536,6 @@ public abstract class AppletBase extends Applet {
private short insECDSA_sign(APDU apdu) {
byte keyPair = apduArray[ISO7816.OFFSET_P1];
byte export = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
byte sigType = apduArray[cdata];
short len = 0;
@@ -549,7 +560,6 @@ public abstract class AppletBase extends Applet {
private short insECDSA_verify(APDU apdu) {
byte keyPair = apduArray[ISO7816.OFFSET_P1];
byte sigType = apduArray[ISO7816.OFFSET_P2];
- short cdata = getOffsetCdata(apdu);
short len = 0;
if ((keyPair & KEYPAIR_LOCAL) != 0) {
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-08 15:12:03 +0000