| /* |
| * 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); |
| } |
| } |