1 files changed, 150 insertions, 0 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/jcajce/JcaSimpleSignerInfoVerifierBuilder.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/jcajce/JcaSimpleSignerInfoVerifierBuilder.java
new file mode 100644
index 000000000..4463b0659
--- /dev/null
+++ b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/jcajce/JcaSimpleSignerInfoVerifierBuilder.java
@@ -0,0 +1,150 @@
+package org.spongycastle.cms.jcajce;
+
+import java.security.Provider;
+import java.security.PublicKey;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+
+import org.spongycastle.cert.X509CertificateHolder;
+import org.spongycastle.cms.DefaultCMSSignatureAlgorithmNameGenerator;
+import org.spongycastle.cms.SignerInformationVerifier;
+import org.spongycastle.operator.ContentVerifierProvider;
+import org.spongycastle.operator.DefaultSignatureAlgorithmIdentifierFinder;
+import org.spongycastle.operator.DigestCalculatorProvider;
+import org.spongycastle.operator.OperatorCreationException;
+import org.spongycastle.operator.jcajce.JcaContentVerifierProviderBuilder;
+import org.spongycastle.operator.jcajce.JcaDigestCalculatorProviderBuilder;
+
+public class JcaSimpleSignerInfoVerifierBuilder
+{
+    private Helper helper = new Helper();
+
+    public JcaSimpleSignerInfoVerifierBuilder setProvider(Provider provider)
+    {
+        this.helper = new ProviderHelper(provider);
+
+        return this;
+    }
+
+    public JcaSimpleSignerInfoVerifierBuilder setProvider(String providerName)
+    {
+        this.helper = new NamedHelper(providerName);
+
+        return this;
+    }
+
+    public SignerInformationVerifier build(X509CertificateHolder certHolder)
+        throws OperatorCreationException, CertificateException
+    {
+        return new SignerInformationVerifier(new DefaultCMSSignatureAlgorithmNameGenerator(), new DefaultSignatureAlgorithmIdentifierFinder(), helper.createContentVerifierProvider(certHolder), helper.createDigestCalculatorProvider());
+    }
+
+    public SignerInformationVerifier build(X509Certificate certificate)
+        throws OperatorCreationException
+    {
+        return new SignerInformationVerifier(new DefaultCMSSignatureAlgorithmNameGenerator(), new DefaultSignatureAlgorithmIdentifierFinder(), helper.createContentVerifierProvider(certificate), helper.createDigestCalculatorProvider());
+    }
+
+    public SignerInformationVerifier build(PublicKey pubKey)
+        throws OperatorCreationException
+    {
+        return new SignerInformationVerifier(new DefaultCMSSignatureAlgorithmNameGenerator(), new DefaultSignatureAlgorithmIdentifierFinder(), helper.createContentVerifierProvider(pubKey), helper.createDigestCalculatorProvider());
+    }
+
+    private class Helper
+    {
+        ContentVerifierProvider createContentVerifierProvider(PublicKey publicKey)
+            throws OperatorCreationException
+        {
+            return new JcaContentVerifierProviderBuilder().build(publicKey);
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(X509Certificate certificate)
+            throws OperatorCreationException
+        {
+            return new JcaContentVerifierProviderBuilder().build(certificate);
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(X509CertificateHolder certHolder)
+            throws OperatorCreationException, CertificateException
+        {
+            return new JcaContentVerifierProviderBuilder().build(certHolder);
+        }
+
+        DigestCalculatorProvider createDigestCalculatorProvider()
+            throws OperatorCreationException
+        {
+            return new JcaDigestCalculatorProviderBuilder().build();
+        }
+    }
+
+    private class NamedHelper
+        extends Helper
+    {
+        private final String providerName;
+
+        public NamedHelper(String providerName)
+        {
+            this.providerName = providerName;
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(PublicKey publicKey)
+            throws OperatorCreationException
+        {
+            return new JcaContentVerifierProviderBuilder().setProvider(providerName).build(publicKey);
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(X509Certificate certificate)
+            throws OperatorCreationException
+        {
+            return new JcaContentVerifierProviderBuilder().setProvider(providerName).build(certificate);
+        }
+
+        DigestCalculatorProvider createDigestCalculatorProvider()
+            throws OperatorCreationException
+        {
+            return new JcaDigestCalculatorProviderBuilder().setProvider(providerName).build();
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(X509CertificateHolder certHolder)
+            throws OperatorCreationException, CertificateException
+        {
+            return new JcaContentVerifierProviderBuilder().setProvider(providerName).build(certHolder);
+        }
+    }
+
+    private class ProviderHelper
+        extends Helper
+    {
+        private final Provider provider;
+
+        public ProviderHelper(Provider provider)
+        {
+            this.provider = provider;
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(PublicKey publicKey)
+            throws OperatorCreationException
+        {
+            return new JcaContentVerifierProviderBuilder().setProvider(provider).build(publicKey);
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(X509Certificate certificate)
+            throws OperatorCreationException
+        {
+            return new JcaContentVerifierProviderBuilder().setProvider(provider).build(certificate);
+        }
+
+        DigestCalculatorProvider createDigestCalculatorProvider()
+            throws OperatorCreationException
+        {
+            return new JcaDigestCalculatorProviderBuilder().setProvider(provider).build();
+        }
+
+        ContentVerifierProvider createContentVerifierProvider(X509CertificateHolder certHolder)
+            throws OperatorCreationException, CertificateException
+        {
+            return new JcaContentVerifierProviderBuilder().setProvider(provider).build(certHolder);
+        }
+    }
+}