diff options
Diffstat (limited to 'src/main/java/org/uic/barcode/utils')
| -rw-r--r-- | src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java | 173 | ||||
| -rw-r--r-- | src/main/java/org/uic/barcode/utils/package.html | 20 |
2 files changed, 193 insertions, 0 deletions
diff --git a/src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java b/src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java new file mode 100644 index 0000000..300bf7d --- /dev/null +++ b/src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java @@ -0,0 +1,173 @@ +package org.uic.barcode.utils;
+
+import java.security.Provider;
+import java.security.Provider.Service;
+import java.security.Security;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.TreeSet;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class AlgorithmNameResolver {
+
+
+ public static final String TYPE_KEY_GENERATOR_ALG = "KeyPairGenerator";
+ public static final String TYPE_SIGNATURE_ALG = "Signature";
+
+
+ private static final Pattern KEY_TYPE_PATTERN = Pattern.compile("^(\\w+)[.].*$");
+ private static final Pattern KEY_ALIAS_TYPE_PATTERN = Pattern.compile("^Alg[.]Alias[.](\\w+).*$");
+ private static final Pattern KEY_OID_PATTERN = Pattern.compile(".*?(\\d+(?:[.]\\d+){3,})$");
+
+ 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;
+
+ }
+
+
+ public static String getName(String type, String oid) throws Exception {
+
+ Provider[] provs = Security.getProviders();
+
+ for (Provider prov : provs) {
+
+ SortedSet<String> typeAndOID = getTypeAndOIDStrings(prov);
+
+ for (String entry : typeAndOID) {
+ String[] typeAndOIDArray = entry.split("-");
+ String ptype = typeAndOIDArray[0];
+ if (ptype.equalsIgnoreCase(type)) {
+ String poid = typeAndOIDArray[1];
+ Service pservice = prov.getService(ptype, poid);
+ String palgo = pservice.getAlgorithm();
+
+ if (ptype.equalsIgnoreCase(type) && poid.equals(oid)) {
+ return palgo;
+ }
+ }
+ }
+ }
+
+
+ if (oid.startsWith("1.2.840.10045")) {
+ return "ECDSA";
+ } else if (oid.startsWith("1.2.840.10040")) {
+ return "DSA";
+ }
+
+ return null;
+
+ }
+
+ public static String getName(String type, String oid, String providerName) throws Exception {
+
+ Provider[] provs = Security.getProviders();
+
+ for (Provider prov : provs) {
+
+ if (providerName == null || prov.getName().equals(providerName)) {
+
+ SortedSet<String> typeAndOID = getTypeAndOIDStrings(prov);
+
+ for (String entry : typeAndOID) {
+ String[] typeAndOIDArray = entry.split("-");
+ String ptype = typeAndOIDArray[0];
+ if (ptype.equalsIgnoreCase(type)) {
+ String poid = typeAndOIDArray[1];
+ Service pservice = prov.getService(ptype, poid);
+ String palgo = pservice.getAlgorithm();
+
+ if (ptype.equalsIgnoreCase(type) && poid.equals(oid)) {
+ return palgo;
+ }
+ }
+ }
+ }
+ }
+
+
+ if (oid.startsWith("1.2.840.10045")) {
+ return "ECDSA";
+ } else if (oid.startsWith("1.2.840.10040")) {
+ return "DSA";
+ }
+
+ return null;
+
+ }
+
+ private static SortedSet<String> getTypeAndOIDStrings(Provider prov) {
+
+ SortedSet<String> typeAndOID = new TreeSet<>();
+
+ Set<Object> keys = prov.keySet();
+ for (Object key : keys) {
+ String keyString = key.toString();
+ Matcher oidMatcher = KEY_OID_PATTERN.matcher(keyString);
+ if (oidMatcher.matches()) {
+ // get OID from matched keyString
+ String oid = oidMatcher.group(1);
+
+ // determine type
+ String type;
+ Matcher aliasTypeMatcher = KEY_ALIAS_TYPE_PATTERN.matcher(keyString);
+ if (aliasTypeMatcher.matches()) {
+ type = aliasTypeMatcher.group(1);
+ } else {
+ Matcher typeMatcher = KEY_TYPE_PATTERN.matcher(keyString);
+ typeMatcher.matches();
+ type = typeMatcher.group(1);
+ }
+ // algorithm parameters are not algorithms, so skip them
+ if (type.equals("AlgorithmParameters")) {
+ continue;
+ }
+
+ // auto-removes dupes
+ typeAndOID.add(type + "-" + oid);
+ }
+ }
+ return typeAndOID;
+ }
+
+
+ public static String getSecurityNames() throws Exception {
+
+ Provider[] provs = Security.getProviders();
+
+ StringBuilder sb = new StringBuilder();
+
+ for (Provider prov : provs) {
+
+ SortedSet<String> typeAndOID = getTypeAndOIDStrings(prov);
+
+ for (String entry : typeAndOID) {
+ String[] typeAndOIDArray = entry.split("-");
+ String ptype = typeAndOIDArray[0];
+ String poid = typeAndOIDArray[1];
+ Service pservice = prov.getService(ptype, poid);
+ String palgo = "";
+ if ( pservice != null) {
+ palgo = pservice.getAlgorithm();
+ }
+ sb.append(prov).append(";");
+ sb.append(ptype).append(";");
+ sb.append(poid).append(";");
+ sb.append(palgo).append(";");
+ sb.append("\r\n");
+
+ }
+ }
+ return sb.toString();
+
+ }
+}
diff --git a/src/main/java/org/uic/barcode/utils/package.html b/src/main/java/org/uic/barcode/utils/package.html new file mode 100644 index 0000000..45a73a9 --- /dev/null +++ b/src/main/java/org/uic/barcode/utils/package.html @@ -0,0 +1,20 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+<head></head>
+<body>
+
+<h1>Implementation of the header frames to bundle all data for a bar code.</h1>
+
+<p>
+
+ Provides a decoding and encoding of the header data frames for:<br/><br/>
+
+ <ul>
+ <li> static header as defined in UIC IRS 90918-9</li>
+ <li> dynamic header as drafted for the UIC IRS 90918-9</li>
+
+ </ul>
+</p>
+
+</body>
+</html>
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