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| 1 | +/* |
| 2 | + * SonarQube Cryptography Plugin |
| 3 | + * Copyright (C) 2025 IBM |
| 4 | + * |
| 5 | + * Licensed to the Apache Software Foundation (ASF) under one or more |
| 6 | + * contributor license agreements. See the NOTICE file distributed with |
| 7 | + * this work for additional information regarding copyright ownership. |
| 8 | + * The ASF licenses this file to you under the Apache License, Version 2.0 |
| 9 | + * (the "License"); you may not use this file except in compliance with |
| 10 | + * the License. You may obtain a copy of the License at |
| 11 | + * |
| 12 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 13 | + * |
| 14 | + * Unless required by applicable law or agreed to in writing, software |
| 15 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 16 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 17 | + * See the License for the specific language governing permissions and |
| 18 | + * limitations under the License. |
| 19 | + */ |
| 20 | +package com.ibm.enricher.algorithm; |
| 21 | + |
| 22 | +import com.ibm.enricher.IEnricher; |
| 23 | +import com.ibm.mapper.model.INode; |
| 24 | +import com.ibm.mapper.model.MessageDigest; |
| 25 | +import com.ibm.mapper.model.Oid; |
| 26 | +import com.ibm.mapper.model.algorithms.HMAC; |
| 27 | +import com.ibm.mapper.model.algorithms.SHA; |
| 28 | +import com.ibm.mapper.model.algorithms.SHA2; |
| 29 | +import com.ibm.mapper.model.algorithms.SHA3; |
| 30 | +import javax.annotation.Nonnull; |
| 31 | + |
| 32 | +public class HMACEnricher implements IEnricher { |
| 33 | + |
| 34 | + @Nonnull |
| 35 | + @Override |
| 36 | + public INode enrich(@Nonnull INode node) { |
| 37 | + if (node instanceof HMAC hmac) { |
| 38 | + hmac.hasChildOfType(MessageDigest.class) |
| 39 | + .ifPresent( |
| 40 | + digest -> { |
| 41 | + if (digest instanceof SHA) { |
| 42 | + hmac.put( |
| 43 | + new Oid( |
| 44 | + "1.2.840.113549.2.7", |
| 45 | + hmac.getDetectionContext())); |
| 46 | + } else if (digest instanceof SHA2 sha2) { |
| 47 | + sha2.getDigestSize() |
| 48 | + .ifPresent( |
| 49 | + digestSize -> { |
| 50 | + switch (digestSize.getValue()) { |
| 51 | + case 224 -> |
| 52 | + hmac.put( |
| 53 | + new Oid( |
| 54 | + "1.2.840.113549.2.8", |
| 55 | + hmac |
| 56 | + .getDetectionContext())); |
| 57 | + case 256 -> |
| 58 | + hmac.put( |
| 59 | + new Oid( |
| 60 | + "1.2.840.113549.2.9", |
| 61 | + hmac |
| 62 | + .getDetectionContext())); |
| 63 | + case 384 -> |
| 64 | + hmac.put( |
| 65 | + new Oid( |
| 66 | + "1.2.840.113549.2.10", |
| 67 | + hmac |
| 68 | + .getDetectionContext())); |
| 69 | + case 512 -> |
| 70 | + hmac.put( |
| 71 | + new Oid( |
| 72 | + "1.2.840.113549.2.11", |
| 73 | + hmac |
| 74 | + .getDetectionContext())); |
| 75 | + } |
| 76 | + }); |
| 77 | + } else if (digest instanceof SHA3 sha3) { |
| 78 | + sha3.getDigestSize() |
| 79 | + .ifPresent( |
| 80 | + digestSize -> { |
| 81 | + switch (digestSize.getValue()) { |
| 82 | + case 224 -> |
| 83 | + hmac.put( |
| 84 | + new Oid( |
| 85 | + "2.16.840.1.101.3.4.2.13", |
| 86 | + hmac |
| 87 | + .getDetectionContext())); |
| 88 | + case 256 -> |
| 89 | + hmac.put( |
| 90 | + new Oid( |
| 91 | + "2.16.840.1.101.3.4.2.14", |
| 92 | + hmac |
| 93 | + .getDetectionContext())); |
| 94 | + case 384 -> |
| 95 | + hmac.put( |
| 96 | + new Oid( |
| 97 | + "2.16.840.1.101.3.4.2.15", |
| 98 | + hmac |
| 99 | + .getDetectionContext())); |
| 100 | + case 512 -> |
| 101 | + hmac.put( |
| 102 | + new Oid( |
| 103 | + "2.16.840.1.101.3.4.2.16", |
| 104 | + hmac |
| 105 | + .getDetectionContext())); |
| 106 | + } |
| 107 | + }); |
| 108 | + } |
| 109 | + }); |
| 110 | + } |
| 111 | + return node; |
| 112 | + } |
| 113 | +} |
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