| /* |
| * |
| * Copyright (c) 2013-2017 Nest Labs, Inc. |
| * All rights reserved. |
| * |
| * 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. |
| */ |
| |
| import com.nestlabs.weave.security.ApplicationKeySupport; |
| import com.nestlabs.weave.security.WeaveKeyId; |
| |
| public final class ApplicationKeySupportTest extends SimpleTest |
| { |
| public static void main(String[] args) |
| { |
| ApplicationKeySupportTest testObj = new ApplicationKeySupportTest(); |
| |
| int res = testObj.runTests(new String[] { |
| "TestAppStaticKeyDerivation", |
| "TestAppRotatingKeyDerivation", |
| }); |
| |
| System.exit(res); |
| } |
| |
| public void TestAppStaticKeyDerivation() throws Exception |
| { |
| TestKeySource keySource = new TestKeySource(); |
| |
| int keyId = WeaveKeyId.makeAppStaticKeyId(WeaveKeyId.ClientRootKey, WeaveKeyId.makeAppGroupMasterKeyId(10)); |
| |
| byte[] diversifier = toByteArray(new int[] |
| { |
| 0x74, 0x98, 0x57, 0xFB, 0x21, 0xDB, 0x2B, 0x28, 0x4D, 0x8D, 0x40 |
| }); |
| |
| byte[] expectedDerivedKey = toByteArray(new int[] |
| { |
| 0x68, 0xBB, 0x09, 0xA5, 0x04, 0x76, 0x1D, 0x68, 0x07, 0x78, 0xC7, 0xF8, 0x34, 0xA6, 0x71, 0x0E, |
| 0x7E, 0xA4, 0x89, 0x8F, 0x4D, 0x1D, 0xE5, 0x03, 0x64, 0xBA, 0xB4, 0xD7, 0x19, 0x76, 0xD8, 0x1B, |
| 0x0D, 0x29, 0xA4, 0xA6, 0x04, 0x3C, 0xF1, 0x87, 0xDD, 0x96, 0x55, 0x09, 0x6B, 0x64, 0x49, 0x70, |
| }); |
| |
| byte[] derivedKey = ApplicationKeySupport.deriveApplicationKey(keyId, keySource, null, diversifier, expectedDerivedKey.length); |
| |
| assertEqual(derivedKey, expectedDerivedKey, "Derived key"); |
| } |
| |
| public void TestAppRotatingKeyDerivation() throws Exception |
| { |
| TestKeySource keySource = new TestKeySource(); |
| |
| int keyId = WeaveKeyId.makeAppRotatingKeyId(WeaveKeyId.ServiceRootKey, WeaveKeyId.makeEpochKeyId(3), WeaveKeyId.makeAppGroupMasterKeyId(54), false); |
| |
| byte[] diversifier = toByteArray(new int[] |
| { |
| 0x74, 0x98, 0x57, 0xFB, 0x21, 0xDB, 0x2B, 0x28, 0x4D, 0x8D, 0x40, 0x45, 0x46, 0x47, 0x48, 0x49 |
| }); |
| |
| byte[] expectedDerivedKey = toByteArray(new int[] |
| { |
| 0x9B, 0x80, 0xEF, 0xFB, 0x6A, 0xC6, 0x94, 0xBD, 0xB8, 0xF5, 0x54, 0xFC, 0x8D, 0x8E, 0x54, 0xA2, |
| 0x8C, 0x19, 0xEE, 0x07, 0x89, 0xE9, 0x2A, 0x8F, 0xF7, 0x0F, 0xF5, 0xEA, 0x58, 0xAB, 0x60, 0x2C, |
| 0x38, 0x6E, 0xE6, 0xE0, 0x52, 0x21, 0xCE, 0xEA, 0xBE, 0x00, 0x55, 0xC8, 0xCE, 0x52, 0x7F, 0x5F, |
| 0x4C, 0xC3, 0x43, 0x20, 0xDC, 0xA0, 0x21, 0x46, 0x5B, 0xF8, 0xF4, 0x9D, 0x66, 0x36, 0x75, 0xA6, |
| }); |
| |
| byte[] derivedKey = ApplicationKeySupport.deriveApplicationKey(keyId, keySource, null, diversifier, expectedDerivedKey.length); |
| |
| assertEqual(derivedKey, expectedDerivedKey, "Derived key"); |
| } |
| |
| static class TestKeySource implements ApplicationKeySupport.ConstituentKeySource |
| { |
| @Override |
| public byte[] getKey(int keyId) throws Exception |
| { |
| if (keyId == WeaveKeyId.ClientRootKey) |
| { |
| return toByteArray(new int[] |
| { |
| 0xA2, 0x58, 0x83, 0x0C, 0xEE, 0xF6, 0x4F, 0x12, 0x21, 0x3C, 0xFA, 0xA1, 0xF0, 0xA5, 0xFC, 0x69, |
| 0x26, 0x69, 0xC6, 0x47, 0x4C, 0x76, 0x38, 0xE6, 0xBE, 0xF9, 0xAD, 0x02, 0xD9, 0xD5, 0x4C, 0xAC, |
| }); |
| } |
| |
| if (keyId == WeaveKeyId.ServiceRootKey) |
| { |
| return toByteArray(new int[] |
| { |
| 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, |
| 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF |
| }); |
| } |
| |
| if (keyId == WeaveKeyId.makeEpochKeyId(3)) |
| { |
| return toByteArray(new int[] |
| { |
| 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF, |
| 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F |
| }); |
| } |
| |
| if (keyId == WeaveKeyId.makeAppGroupMasterKeyId(10)) |
| { |
| return toByteArray(new int[] |
| { |
| 0xEF, 0xEE, 0xED, 0xEC, 0xEB, 0xEA, 0xE9, 0xE8, 0xE7, 0xE6, 0xE5, 0xE4, 0xE3, 0xE2, 0xE1, 0xE0, |
| 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F, |
| }); |
| } |
| |
| if (keyId == WeaveKeyId.makeAppGroupMasterKeyId(54)) |
| { |
| return toByteArray(new int[] |
| { |
| 0x7F, 0x7E, 0x7D, 0x7C, 0x7B, 0x7A, 0x79, 0x78, 0x77, 0x76, 0x75, 0x74, 0x73, 0x72, 0x71, 0x70, |
| 0xB0, 0xB1, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE, 0xBF |
| }); |
| } |
| |
| throw new IllegalArgumentException(String.format("Unexpected key id requested: %08X", keyId)); |
| } |
| }; |
| } |