From e023e674020f1a435f7b8c8b9276704f576ea6e5 Mon Sep 17 00:00:00 2001 From: CGantert345 <57003061+CGantert345@users.noreply.github.com> Date: Mon, 29 Mar 2021 14:08:45 +0200 Subject: structure change 1 --- .../uic/barcode/utils/AlgorithmNameResolver.java | 173 +++++++++++++++++++++ src/main/java/org/uic/barcode/utils/package.html | 20 +++ 2 files changed, 193 insertions(+) create mode 100644 src/main/java/org/uic/barcode/utils/AlgorithmNameResolver.java create mode 100644 src/main/java/org/uic/barcode/utils/package.html (limited to 'src/main/java/org/uic/barcode/utils') 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 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 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 getTypeAndOIDStrings(Provider prov) { + + SortedSet typeAndOID = new TreeSet<>(); + + Set 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 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 @@ + + + + + +

Implementation of the header frames to bundle all data for a bar code.

+ +

+ + Provides a decoding and encoding of the header data frames for:

+ +

    +
  • static header as defined in UIC IRS 90918-9
  • +
  • dynamic header as drafted for the UIC IRS 90918-9
  • + +
+

+ + + \ No newline at end of file -- cgit v1.2.3