Add API to set Crypto Provider

README.md

@@ -41,7 +41,7 @@ import java.security.Provider;
 
 public class InstallBouncyCastle {
    private static final Provider PROVIDER;
-   
+
    public static void installProvider() throws Exception {
        if (PROVIDER != null) return;
        PROVIDER = new BouncyCastleProvider();
@@ -66,4 +66,4 @@ Go ahead, file issues, make pull requests.  There is an automated build process
 
 Currently setup to build in the NetBeans IDE.  Automated checking is performed using the [COSE Examples](https://github.com/cose-wg/Examples) as part of the suite.
 
-The examples are located by the following method. 1) If 'c:\\Projects\\cose\\" exists then it uses that as the directory to look in for the examples. 2) It expects that the examples are in the same directory as the pom.xml file.
+The examples are imported into `src/test/resources/Examples`.

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.augustcellars.cose</groupId>
     <artifactId>cose-java</artifactId>
-    <version>1.1.0</version>
+    <version>1.1.1-SNAPSHOT</version>
 
     <name>com.augustcellars.cose:cose-java</name>
     <description>A Java implementation that supports the COSE secure message specification.</description>
@@ -38,7 +38,7 @@
         <url>https://oss.sonatype.org/content/repositories/snapshots</url>
       </snapshotRepository>
     </distributionManagement>
-    
+
     <build>
         <plugins>
             <plugin>
@@ -139,7 +139,7 @@
                 </execution>
               </executions>
             </plugin>
-            
+
             <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-javadoc-plugin</artifactId>
@@ -157,7 +157,7 @@
                 </execution>
               </executions>
             </plugin>
-            
+
             <plugin>
               <groupId>org.apache.maven.plugins</groupId>
               <artifactId>maven-source-plugin</artifactId>
@@ -183,7 +183,7 @@
                 <autoReleaseAfterClose>true</autoReleaseAfterClose>
               </configuration>
             </plugin>
-            
+
           </plugins>
         </build>
       </profile>
@@ -192,7 +192,7 @@
     <properties>
       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
-    
+
     <reporting>
         <plugins>
             <plugin>
@@ -203,4 +203,4 @@
         </plugins>
     </reporting>
 </project>
-    
+

src/main/java/COSE/CryptoContext.java

@@ -0,0 +1,25 @@
+package COSE;
+
+
+import java.security.Provider;
+
+/**
+ * Specify which JCA Provider to use for signing and verifying messages
+ */
+public class CryptoContext {
+
+    private Provider provider;
+
+    public CryptoContext(Provider provider) {
+        this.provider = provider;
+    }
+
+    public Provider getProvider() {
+        return provider;
+    }
+
+    public void setProvider(Provider provider) {
+        this.provider = provider;
+    }
+
+}

src/main/java/COSE/Encrypt0Message.java

@@ -24,11 +24,11 @@ public class Encrypt0Message extends EncryptCommon {
     public Encrypt0Message() {
         this(true, true);
     }
-    
+
     /**
      * Create a Encrypt0Message object.  This object corresponds to the encrypt
    message format in COSE.
-     * 
+     *
      * @param emitTag is the leading CBOR tag emitted
      * @param emitContent is the content emitted
      */
@@ -38,11 +38,18 @@ public Encrypt0Message(boolean emitTag, boolean emitContent) {
         this.emitTag = emitTag;
         this.emitContent = emitContent;
     }
-
+
+    /**
+     * Gets the {@link CryptoContext} to set a different JCA Provider
+     */
+    public CryptoContext getCryptoContext() {
+        return cryptoContext;
+    }
+
     @Override
     public void DecodeFromCBORObject(CBORObject obj) throws CoseException {
         if (obj.size() != 3) throw new CoseException("Invalid Encrypt0 structure");
-        
+
         if (obj.get(0).getType() == CBORType.ByteString) {
             if (obj.get(0).GetByteString().length == 0) {
                 rgbProtected = new byte[0];
@@ -53,54 +60,54 @@ public void DecodeFromCBORObject(CBORObject obj) throws CoseException {
                 objProtected = CBORObject.DecodeFromBytes(rgbProtected);
                 if (objProtected.getType() != CBORType.Map) throw new CoseException("Invalid Encrypt0 structure");
             }
-            
+
         }
         else throw new CoseException("Invalid Encrypt0 structure");
-        
+
         if(obj.get(1).getType() == CBORType.Map) objUnprotected = obj.get(1);
         else throw new CoseException("Invalid Encrypt0 structure");
-        
+
         if (obj.get(2).getType() == CBORType.ByteString) rgbEncrypt = obj.get(2).GetByteString();
         else if (!obj.get(2).isNull()) throw new CoseException("Invalid Encrypt0 structure");
-        
-        
+
+
     }
-    
+
     /**
-     * Internal function used to construct the CBORObject 
+     * Internal function used to construct the CBORObject
      * @return the constructed CBORObject
      * @throws CoseException if the content has not yet been encrypted
      */
     @Override
     protected CBORObject EncodeCBORObject() throws CoseException {
         if (rgbEncrypt == null) throw new CoseException("Encrypt function not called");
-        
+
         CBORObject obj = CBORObject.NewArray();
         if (objProtected.size() > 0) obj.Add(objProtected.EncodeToBytes());
         else obj.Add(CBORObject.FromObject(new byte[0]));
-        
+
         obj.Add(objUnprotected);
-        
+
         if (emitContent) obj.Add(rgbEncrypt);
         else obj.Add(CBORObject.Null);
-        
+
         return obj;
     }
-    
+
     /**
      * Decrypt the message using the passed in key.
-     * 
+     *
      * @param rgbKey key for decryption
      * @return the decrypted content
      * @throws CoseException - Error during decryption
      */
     public byte[] decrypt(byte[] rgbKey) throws CoseException {
         return super.decryptWithKey(rgbKey);
     }
-    
+
     /**
      * Encrypt the message using the passed in key.
-     * 
+     *
      * @param rgbKey key used for encryption
      * @throws CoseException - Error during decryption
      * @throws IllegalStateException - Error during decryption