From e670f1fdbc43f0d0854896a1afe2815f8a9f4c87 Mon Sep 17 00:00:00 2001 From: CGantert345 <57003061+CGantert345@users.noreply.github.com> Date: Mon, 11 Apr 2022 15:06:48 +0200 Subject: fixing DOSIPAS algorithm names and supported EC curves --- .../uic/barcode/utils/AlgorithmNameResolver.java | 187 ++++++++++++++------- 1 file changed, 125 insertions(+), 62 deletions(-) (limited to 'src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java') diff --git a/src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java b/src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java index a3154f3..28f90e6 100644 --- a/src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java +++ b/src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java @@ -3,98 +3,161 @@ package org.uic.barcode.utils; import java.security.Provider; import java.security.Provider.Service; import java.security.Security; +import java.util.HashMap; +/** + * The Class AlgorithmNameResolver. + */ public class AlgorithmNameResolver { + /** The Constant TYPE_KEY_GENERATOR_ALG. */ public static final String TYPE_KEY_GENERATOR_ALG = "KeyPairGenerator"; + + /** The Constant TYPE_SIGNATURE_ALG. */ public static final String TYPE_SIGNATURE_ALG = "Signature"; + /** The map. */ + private static HashMap> map = new HashMap>(); + + /** + * Adds an entry for a mapping of algorithm type and oid to an algorithm name + * + * @param type the algorithm type + * @param oid the algorithm OID + * @param name the algorithm name + */ + public static void addMap (String type, String oid, String name) { + + if (map.get(type) == null) { + HashMap list = new HashMap(); + list.put(oid, name); + map.put(type, list); + } else { + map.get(type).put(oid, name); + } + } + + /** + * Gets the signature algorithm name. + * + * @param oid the oid + * @return the signature algorithm name + * @throws Exception the exception + */ public static String getSignatureAlgorithmName (String oid) throws Exception { - Provider[] provs = Security.getProviders(); - for (Provider prov : provs) { - Service service = prov.getService(AlgorithmNameResolver.TYPE_SIGNATURE_ALG,oid); - if (service != null) { - return service.getAlgorithm(); - } - } - return null; + return getSignatureAlgorithmName (oid, null); } + /** + * Gets the signature algorithm name. + * + * @param oid the oid + * @param provider the provider + * @return the signature algorithm name + * @throws Exception the exception + */ public static String getSignatureAlgorithmName (String oid, Provider provider) throws Exception { + return getAlgorithmName(AlgorithmNameResolver.TYPE_SIGNATURE_ALG,oid,provider); + + } + + /** + * Gets the name. + * + * @param type the type + * @param oid the oid + * @return the name + * @throws Exception the exception + */ + public static String getName (String type, String oid) throws Exception { + + return getAlgorithmName(type,oid,null); + + } + + + /** + * Gets the name. + * + * @param type the type + * @param oid the oid + * @param provider the provider + * @return the name + * @throws Exception the exception + */ + public static String getName(String type, String oid, Provider provider) throws Exception { + + return getAlgorithmName(type,oid,provider); + + } + + + + /** + * Gets the algorithm name. + * + * @param type the type + * @param oid the oid + * @param provider the provider + * @return the algorithm name + * @throws Exception the exception + */ + public static String getAlgorithmName (String type, String oid, Provider provider) throws Exception { + + String name = null; + if (provider != null) { - Service service = provider.getService(AlgorithmNameResolver.TYPE_SIGNATURE_ALG,oid); - return service.getAlgorithm(); + Service service = provider.getService(type,oid); + if (service != null) { + name = service.getAlgorithm(); + } + + if (name != null && name.length() > 0) { + return name; + } } Provider[] provs = Security.getProviders(); for (Provider prov : provs) { - Service service = prov.getService(AlgorithmNameResolver.TYPE_SIGNATURE_ALG,oid); + Service service = prov.getService(type,oid); if (service != null) { - return service.getAlgorithm(); + name = service.getAlgorithm(); + } + if (name != null && name.length() > 0) { + return name; } } - return null; - - } - - - public static String getName (String type, String oid) throws Exception { - - Provider[] provs = Security.getProviders(); - for (Provider prov : provs) { - Service service = prov.getService(type,oid); - if (service != null) { - return service.getAlgorithm(); - } - } - - if (oid.startsWith("1.2.840.10045")) { + + if (map.get(type) != null) { + if (map.get(type).get(oid) != null) { + return map.get(type).get(oid); + } + } + + + //fallback if the provider did not implement OIDs + if (oid.startsWith("1.2.840.10045.4")) { return "ECDSA"; - } else if (oid.startsWith("1.2.840.10040")) { - return "DSA"; - } - - return null; - - } - - - public static String getName(String type, String oid, Provider provider) throws Exception { - - Service service = null; - if (provider == null) { - - Provider[] provs = Security.getProviders(); - for (Provider prov : provs) { - service = prov.getService(type,oid); - } - - } else { - service = provider.getService(type,oid); - } - - - - if (service != null) { - return service.getAlgorithm(); - } - - if (oid.startsWith("1.2.840.10045")) { + } else if (oid.startsWith("1.2.840.10045.3")) { + return "EC"; + } else if (oid.startsWith("1.2.840.10045")) { return "ECDSA"; } else if (oid.startsWith("1.2.840.10040")) { return "DSA"; } - - return null; - - } + + return null; + + } + + -- cgit v1.2.3