Merge pull request #47 from shilpat55/main

Adding method for specifying the kid

Author: danny-gallagher

src/main/java/com/mastercard/developer/encryption/JweConfigBuilder.java

@@ -74,6 +74,11 @@ public JweConfigBuilder withEncryptedValueFieldName(String encryptedValueFieldNa
         return this;
     }
 
+    public JweConfigBuilder withEncryptionKeyFingerprint(String encryptionKeyFingerprint) {
+        this.encryptionKeyFingerprint = encryptionKeyFingerprint;
+        return this;
+    }
+    
     private void checkParameterValues() {
         if (decryptionKey == null && encryptionCertificate == null) {
             throw new IllegalArgumentException("You must include at least an encryption certificate or a decryption key");

src/test/java/com/mastercard/developer/encryption/JweConfigBuilderTest.java

@@ -96,4 +96,14 @@ public void testBuild_ShouldThrowIllegalArgumentException_WhenNotDefiniteEncrypt
                 .withEncryptionCertificate(TestUtils.getTestEncryptionCertificate())
                 .build();
     }
+    
+    @Test
+    public void testBuild_ShouldNotComputeCertificateKeyFingerprint_WhenFingerprintSet() throws Exception {
+        EncryptionConfig config = JweConfigBuilder.aJweEncryptionConfig()
+                .withEncryptionCertificate(TestUtils.getTestEncryptionCertificate())
+                .withDecryptionKey(TestUtils.getTestDecryptionKey())
+                .withEncryptionKeyFingerprint("2f4lvi26vJWzkzAIaiR2G0YsJAQ=")
+                .build();
+        Assert.assertEquals("2f4lvi26vJWzkzAIaiR2G0YsJAQ=", config.getEncryptionKeyFingerprint());
+    }
 }