1 files changed, 171 insertions, 0 deletions
diff --git a/ready_se/google/keymint/KM300/Applet/src/com/android/javacard/keymaster/KMHardwareAuthToken.java b/ready_se/google/keymint/KM300/Applet/src/com/android/javacard/keymaster/KMHardwareAuthToken.java
new file mode 100644
index 0000000..e6b1d37
--- /dev/null
+++ b/ready_se/google/keymint/KM300/Applet/src/com/android/javacard/keymaster/KMHardwareAuthToken.java
@@ -0,0 +1,171 @@
+/*
+ * Copyright(C) 2020 The Android Open Source Project
+ *
+ * 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 com.android.javacard.keymaster;
+
+import javacard.framework.ISO7816;
+import javacard.framework.ISOException;
+import javacard.framework.Util;
+
+/**
+ * KMHardwareAuthToken represents HardwareAuthToken structure from android keymaster hal
+ * specifications. It corresponds to CBOR array type. struct{byte HW_AUTH_TOKEN_TYPE; short
+ * length=2; short arrayPtr} where arrayPtr is a pointer to ordered array with following elements:
+ * {KMInteger Challenge; KMInteger UserId; KMInteger AuthenticatorId; UserAuthType
+ * HwAuthenticatorId; KMInteger TimeStamp; KMByteBlob Mac}
+ */
+public class KMHardwareAuthToken extends KMType {
+
+  public static final byte CHALLENGE = 0x00;
+  public static final byte USER_ID = 0x01;
+  public static final byte AUTHENTICATOR_ID = 0x02;
+  public static final byte HW_AUTHENTICATOR_TYPE = 0x03;
+  public static final byte TIMESTAMP = 0x04;
+  public static final byte MAC = 0x05;
+
+  private static KMHardwareAuthToken prototype;
+
+  private KMHardwareAuthToken() {}
+
+  public static short exp() {
+    short arrPtr = KMArray.instance((short) 6);
+    KMArray arr = KMArray.cast(arrPtr);
+    arr.add(CHALLENGE, KMInteger.exp());
+    arr.add(USER_ID, KMInteger.exp());
+    arr.add(AUTHENTICATOR_ID, KMInteger.exp());
+    arr.add(HW_AUTHENTICATOR_TYPE, KMEnum.instance(KMType.USER_AUTH_TYPE));
+    arr.add(TIMESTAMP, KMInteger.exp());
+    arr.add(MAC, KMByteBlob.exp());
+    return instance(arrPtr);
+  }
+
+  private static KMHardwareAuthToken proto(short ptr) {
+    if (prototype == null) {
+      prototype = new KMHardwareAuthToken();
+    }
+    KMType.instanceTable[KM_HARDWARE_AUTH_TOKEN_OFFSET] = ptr;
+    return prototype;
+  }
+
+  public static short instance() {
+    short arrPtr = KMArray.instance((short) 6);
+    KMArray arr = KMArray.cast(arrPtr);
+    arr.add(CHALLENGE, KMInteger.uint_16((short) 0));
+    arr.add(USER_ID, KMInteger.uint_16((short) 0));
+    arr.add(AUTHENTICATOR_ID, KMInteger.uint_16((short) 0));
+    arr.add(HW_AUTHENTICATOR_TYPE, KMEnum.instance(KMType.USER_AUTH_TYPE, KMType.USER_AUTH_NONE));
+    arr.add(TIMESTAMP, KMInteger.uint_16((short) 0));
+    arr.add(MAC, KMByteBlob.instance((short) 0));
+    return instance(arrPtr);
+  }
+
+  public static short instance(short vals) {
+    KMArray arr = KMArray.cast(vals);
+    if (arr.length() != 6) {
+      ISOException.throwIt(ISO7816.SW_WRONG_LENGTH);
+    }
+    short ptr = KMType.instance(HW_AUTH_TOKEN_TYPE, (short) 2);
+    Util.setShort(heap, (short) (ptr + TLV_HEADER_SIZE), vals);
+    return ptr;
+  }
+
+  public static KMHardwareAuthToken cast(short ptr) {
+    if (heap[ptr] != HW_AUTH_TOKEN_TYPE) {
+      ISOException.throwIt(ISO7816.SW_CONDITIONS_NOT_SATISFIED);
+    }
+    short arrPtr = Util.getShort(heap, (short) (ptr + TLV_HEADER_SIZE));
+    if (heap[arrPtr] != ARRAY_TYPE) {
+      ISOException.throwIt(ISO7816.SW_CONDITIONS_NOT_SATISFIED);
+    }
+    return proto(ptr);
+  }
+
+  public short getVals() {
+    return Util.getShort(
+        heap, (short) (KMType.instanceTable[KM_HARDWARE_AUTH_TOKEN_OFFSET] + TLV_HEADER_SIZE));
+  }
+
+  public short length() {
+    short arrPtr = getVals();
+    return KMArray.cast(arrPtr).length();
+  }
+
+  public short getChallenge() {
+    short arrPtr = getVals();
+    return KMArray.cast(arrPtr).get(CHALLENGE);
+  }
+
+  public void setChallenge(short vals) {
+    KMInteger.cast(vals);
+    short arrPtr = getVals();
+    KMArray.cast(arrPtr).add(CHALLENGE, vals);
+  }
+
+  public short getUserId() {
+    short arrPtr = getVals();
+    return KMArray.cast(arrPtr).get(USER_ID);
+  }
+
+  public void setUserId(short vals) {
+    KMInteger.cast(vals);
+    short arrPtr = getVals();
+    KMArray.cast(arrPtr).add(USER_ID, vals);
+  }
+
+  public short getAuthenticatorId() {
+    short arrPtr = getVals();
+    return KMArray.cast(arrPtr).get(AUTHENTICATOR_ID);
+  }
+
+  public void setAuthenticatorId(short vals) {
+    KMInteger.cast(vals);
+    short arrPtr = getVals();
+    KMArray.cast(arrPtr).add(AUTHENTICATOR_ID, vals);
+  }
+
+  public short getHwAuthenticatorType() {
+    short arrPtr = getVals();
+    return KMArray.cast(arrPtr).get(HW_AUTHENTICATOR_TYPE);
+  }
+
+  public void setHwAuthenticatorType(short vals) {
+    KMEnum.cast(vals);
+    short arrPtr = getVals();
+    KMArray.cast(arrPtr).add(HW_AUTHENTICATOR_TYPE, vals);
+  }
+
+  public short getTimestamp() {
+    short arrPtr = getVals();
+    return KMArray.cast(arrPtr).get(TIMESTAMP);
+  }
+
+  public void setTimestamp(short vals) {
+    KMInteger.cast(vals);
+    short arrPtr = getVals();
+    KMArray.cast(arrPtr).add(TIMESTAMP, vals);
+  }
+
+  public short getMac() {
+    short arrPtr = getVals();
+    return KMArray.cast(arrPtr).get(MAC);
+  }
+
+  public void setMac(short vals) {
+    KMByteBlob.cast(vals);
+    short arrPtr = getVals();
+    KMArray.cast(arrPtr).add(MAC, vals);
+  }
+}