Merge pull request #1715 from open-keychain/bouncy

Switch to Bouncy Castle

37 files changed, 200 insertions, 202 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
index 3e48abccb..53fb5afc6 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/Constants.java
@@ -19,7 +19,7 @@ package org.sufficientlysecure.keychain;
 
 import android.os.Environment;
 
-import org.spongycastle.jce.provider.BouncyCastleProvider;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
 
 import java.io.File;
 import java.net.Proxy;
@@ -69,9 +69,7 @@ public final class Constants {
     // used by QR Codes (Guardian Project, Monkeysphere compatiblity)
     public static final String FINGERPRINT_SCHEME = "openpgp4fpr";
 
-    // Not BC due to the use of Spongy Castle for Android
-    public static final String SC = BouncyCastleProvider.PROVIDER_NAME;
-    public static final String BOUNCY_CASTLE_PROVIDER_NAME = SC;
+    public static final String BOUNCY_CASTLE_PROVIDER_NAME = BouncyCastleProvider.PROVIDER_NAME;
 
     // prefix packagename for exported Intents
     // as described in http://developer.android.com/guide/components/intents-filters.html
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java
index c9b9e305f..32d993e2a 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/KeychainApplication.java
@@ -30,7 +30,7 @@ import android.os.Environment;
 import android.support.annotation.Nullable;
 import android.widget.Toast;
 
-import org.spongycastle.jce.provider.BouncyCastleProvider;
+import org.bouncycastle.jce.provider.BouncyCastleProvider;
 import org.sufficientlysecure.keychain.provider.KeychainDatabase;
 import org.sufficientlysecure.keychain.provider.TemporaryFileProvider;
 import org.sufficientlysecure.keychain.service.ContactSyncAdapterService;
@@ -57,7 +57,7 @@ public class KeychainApplication extends Application {
         super.onCreate();
 
         /*
-         * Sets Bouncy (Spongy) Castle as preferred security provider
+         * Sets Bouncy Castle as preferred security provider
          *
          * insertProviderAt() position starts from 1
          */
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/experimental/WordConfirm.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/experimental/WordConfirm.java
index daf63ea9e..282bd15e2 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/experimental/WordConfirm.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/experimental/WordConfirm.java
@@ -19,7 +19,7 @@ package org.sufficientlysecure.keychain.experimental;
 
 import android.content.Context;
 
-import org.spongycastle.util.Arrays;
+import org.bouncycastle.util.Arrays;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.util.Log;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/linked/UriAttribute.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/linked/UriAttribute.java
index 7a8ece2cb..68756db3c 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/linked/UriAttribute.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/linked/UriAttribute.java
@@ -1,6 +1,6 @@
 package org.sufficientlysecure.keychain.linked;
 
-import org.spongycastle.util.Strings;
+import org.bouncycastle.util.Strings;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BackupOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BackupOperation.java
index ae9a2c180..b3a2fd481 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BackupOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BackupOperation.java
@@ -38,7 +38,7 @@ import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.text.TextUtils;
 
-import org.spongycastle.bcpg.ArmoredOutputStream;
+import org.bouncycastle.bcpg.ArmoredOutputStream;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.ExportResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java
index 988a3d16e..52deffeab 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/BenchmarkOperation.java
@@ -25,14 +25,14 @@ import java.util.Random;
 import android.content.Context;
 import android.support.annotation.NonNull;
 
-import org.spongycastle.bcpg.HashAlgorithmTags;
-import org.spongycastle.bcpg.S2K;
-import org.spongycastle.bcpg.SymmetricKeyAlgorithmTags;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.operator.PBEDataDecryptorFactory;
-import org.spongycastle.openpgp.operator.PGPDigestCalculatorProvider;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
+import org.bouncycastle.bcpg.HashAlgorithmTags;
+import org.bouncycastle.bcpg.S2K;
+import org.bouncycastle.bcpg.SymmetricKeyAlgorithmTags;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.operator.PBEDataDecryptorFactory;
+import org.bouncycastle.openpgp.operator.PGPDigestCalculatorProvider;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.operations.results.BenchmarkResult;
 import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/KeybaseVerificationOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/KeybaseVerificationOperation.java
index f3ceac681..f67465132 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/KeybaseVerificationOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/KeybaseVerificationOperation.java
@@ -28,7 +28,7 @@ import com.textuality.keybase.lib.Proof;
 import com.textuality.keybase.lib.prover.Prover;
 
 import org.json.JSONObject;
-import org.spongycastle.openpgp.PGPUtil;
+import org.bouncycastle.openpgp.PGPUtil;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
 import org.sufficientlysecure.keychain.operations.results.KeybaseVerificationResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/UploadOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/UploadOperation.java
index e5f11eaa6..46e2f9e4a 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/UploadOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/UploadOperation.java
@@ -29,7 +29,7 @@ import android.content.Context;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 
-import org.spongycastle.bcpg.ArmoredOutputStream;
+import org.bouncycastle.bcpg.ArmoredOutputStream;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.keyimport.HkpKeyserver;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedKeyRing.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedKeyRing.java
index 6f1e78ce6..f1a57461f 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedKeyRing.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedKeyRing.java
@@ -18,8 +18,8 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.openpgp.PGPKeyRing;
-import org.spongycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPKeyRing;
+import org.bouncycastle.openpgp.PGPPublicKey;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 import org.sufficientlysecure.keychain.util.IterableIterator;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKey.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKey.java
index 476b4e59c..177fe1562 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKey.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKey.java
@@ -18,10 +18,10 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.sig.KeyFlags;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator;
+import org.bouncycastle.bcpg.sig.KeyFlags;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Log;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java
index 5c0472949..1868b27d5 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKeyRing.java
@@ -18,12 +18,12 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.openpgp.PGPObjectFactory;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
+import org.bouncycastle.openpgp.PGPObjectFactory;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPPublicKeyRing;
+import org.bouncycastle.openpgp.PGPSecretKey;
+import org.bouncycastle.openpgp.PGPSecretKeyRing;
+import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKey.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKey.java
index 7394c07c3..ee05453e0 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKey.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKey.java
@@ -18,21 +18,21 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.S2K;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPPrivateKey;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator;
-import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
-import org.spongycastle.openpgp.operator.PGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.jcajce.CachingDataDecryptorFactory;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPKeyConverter;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePublicKeyDataDecryptorFactoryBuilder;
-import org.spongycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder;
+import org.bouncycastle.bcpg.S2K;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPPrivateKey;
+import org.bouncycastle.openpgp.PGPSecretKey;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureGenerator;
+import org.bouncycastle.openpgp.PGPSignatureSubpacketGenerator;
+import org.bouncycastle.openpgp.operator.PBESecretKeyDecryptor;
+import org.bouncycastle.openpgp.operator.PGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.CachingDataDecryptorFactory;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPKeyConverter;
+import org.bouncycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcePublicKeyDataDecryptorFactoryBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKeyRing.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKeyRing.java
index 97b5fa6fe..63ffc3156 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKeyRing.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKeyRing.java
@@ -18,12 +18,12 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.openpgp.PGPKeyRing;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.jcajce.JcaPGPObjectFactory;
+import org.bouncycastle.openpgp.PGPKeyRing;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPSecretKey;
+import org.bouncycastle.openpgp.PGPSecretKeyRing;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.jcajce.JcaPGPObjectFactory;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.util.IterableIterator;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpCertifyOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpCertifyOperation.java
index bf2349734..aa1c2e037 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpCertifyOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpCertifyOperation.java
@@ -23,15 +23,15 @@ import java.nio.ByteBuffer;
 import java.util.Date;
 import java.util.Map;
 
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
-import org.spongycastle.openpgp.PGPUserAttributeSubpacketVector;
-import org.spongycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder.NfcInteractionNeeded;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPPublicKeyRing;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureGenerator;
+import org.bouncycastle.openpgp.PGPSignatureSubpacketGenerator;
+import org.bouncycastle.openpgp.PGPSignatureSubpacketVector;
+import org.bouncycastle.openpgp.PGPUserAttributeSubpacketVector;
+import org.bouncycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder.NfcInteractionNeeded;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyOperation.java
index ea7465209..1ebc75b7d 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpDecryptVerifyOperation.java
@@ -36,25 +36,25 @@ import android.webkit.MimeTypeMap;
 
 import org.openintents.openpgp.OpenPgpDecryptionResult;
 import org.openintents.openpgp.OpenPgpMetadata;
-import org.spongycastle.bcpg.ArmoredInputStream;
-import org.spongycastle.openpgp.PGPCompressedData;
-import org.spongycastle.openpgp.PGPDataValidationException;
-import org.spongycastle.openpgp.PGPEncryptedData;
-import org.spongycastle.openpgp.PGPEncryptedDataList;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPKeyValidationException;
-import org.spongycastle.openpgp.PGPLiteralData;
-import org.spongycastle.openpgp.PGPPBEEncryptedData;
-import org.spongycastle.openpgp.PGPPublicKeyEncryptedData;
-import org.spongycastle.openpgp.PGPSignatureList;
-import org.spongycastle.openpgp.PGPUtil;
-import org.spongycastle.openpgp.jcajce.JcaSkipMarkerPGPObjectFactory;
-import org.spongycastle.openpgp.operator.PBEDataDecryptorFactory;
-import org.spongycastle.openpgp.operator.PGPDigestCalculatorProvider;
-import org.spongycastle.openpgp.operator.jcajce.CachingDataDecryptorFactory;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
-import org.spongycastle.util.encoders.DecoderException;
+import org.bouncycastle.bcpg.ArmoredInputStream;
+import org.bouncycastle.openpgp.PGPCompressedData;
+import org.bouncycastle.openpgp.PGPDataValidationException;
+import org.bouncycastle.openpgp.PGPEncryptedData;
+import org.bouncycastle.openpgp.PGPEncryptedDataList;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPKeyValidationException;
+import org.bouncycastle.openpgp.PGPLiteralData;
+import org.bouncycastle.openpgp.PGPPBEEncryptedData;
+import org.bouncycastle.openpgp.PGPPublicKeyEncryptedData;
+import org.bouncycastle.openpgp.PGPSignatureList;
+import org.bouncycastle.openpgp.PGPUtil;
+import org.bouncycastle.openpgp.jcajce.JcaSkipMarkerPGPObjectFactory;
+import org.bouncycastle.openpgp.operator.PBEDataDecryptorFactory;
+import org.bouncycastle.openpgp.operator.PGPDigestCalculatorProvider;
+import org.bouncycastle.openpgp.operator.jcajce.CachingDataDecryptorFactory;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcePBEDataDecryptorFactoryBuilder;
+import org.bouncycastle.util.encoders.DecoderException;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Constants.key;
 import org.sufficientlysecure.keychain.R;
@@ -800,7 +800,7 @@ public class PgpDecryptVerifyOperation extends BaseOperation<PgpDecryptVerifyInp
      * as defined in http://tools.ietf.org/html/rfc4880#section-7
      * <p/>
      * The method is heavily based on
-     * pg/src/main/java/org/spongycastle/openpgp/examples/ClearSignedFileProcessor.java
+     * pg/src/main/java/org/bouncycastle/openpgp/examples/ClearSignedFileProcessor.java
      */
     @NonNull
     private DecryptVerifyResult verifyCleartextSignature(
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
index c42608a6b..e43548165 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
@@ -18,36 +18,36 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.PublicKeyAlgorithmTags;
-import org.spongycastle.bcpg.S2K;
-import org.spongycastle.bcpg.sig.Features;
-import org.spongycastle.bcpg.sig.KeyFlags;
-import org.spongycastle.bcpg.sig.RevocationReasonTags;
-import org.spongycastle.jce.spec.ElGamalParameterSpec;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPKeyFlags;
-import org.spongycastle.openpgp.PGPKeyPair;
-import org.spongycastle.openpgp.PGPPrivateKey;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.PGPSignatureSubpacketGenerator;
-import org.spongycastle.openpgp.PGPUserAttributeSubpacketVector;
-import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
-import org.spongycastle.openpgp.operator.PBESecretKeyEncryptor;
-import org.spongycastle.openpgp.operator.PGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.PGPDigestCalculator;
-import org.spongycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPKeyPair;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyEncryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder.NfcInteractionNeeded;
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.bcpg.PublicKeyAlgorithmTags;
+import org.bouncycastle.bcpg.S2K;
+import org.bouncycastle.bcpg.sig.Features;
+import org.bouncycastle.bcpg.sig.KeyFlags;
+import org.bouncycastle.bcpg.sig.RevocationReasonTags;
+import org.bouncycastle.jce.spec.ElGamalParameterSpec;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPKeyFlags;
+import org.bouncycastle.openpgp.PGPKeyPair;
+import org.bouncycastle.openpgp.PGPPrivateKey;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPSecretKey;
+import org.bouncycastle.openpgp.PGPSecretKeyRing;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureGenerator;
+import org.bouncycastle.openpgp.PGPSignatureSubpacketGenerator;
+import org.bouncycastle.openpgp.PGPUserAttributeSubpacketVector;
+import org.bouncycastle.openpgp.operator.PBESecretKeyDecryptor;
+import org.bouncycastle.openpgp.operator.PBESecretKeyEncryptor;
+import org.bouncycastle.openpgp.operator.PGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.PGPDigestCalculator;
+import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPKeyPair;
+import org.bouncycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.JcePBESecretKeyEncryptorBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder.NfcInteractionNeeded;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.EditKeyResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSecurityConstants.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSecurityConstants.java
index 7ad7b4d0f..1b15f6fde 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSecurityConstants.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSecurityConstants.java
@@ -17,11 +17,11 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.asn1.nist.NISTNamedCurves;
-import org.spongycastle.bcpg.CompressionAlgorithmTags;
-import org.spongycastle.bcpg.HashAlgorithmTags;
-import org.spongycastle.bcpg.PublicKeyAlgorithmTags;
-import org.spongycastle.bcpg.SymmetricKeyAlgorithmTags;
+import org.bouncycastle.asn1.nist.NISTNamedCurves;
+import org.bouncycastle.bcpg.CompressionAlgorithmTags;
+import org.bouncycastle.bcpg.HashAlgorithmTags;
+import org.bouncycastle.bcpg.PublicKeyAlgorithmTags;
+import org.bouncycastle.bcpg.SymmetricKeyAlgorithmTags;
 
 import java.util.Arrays;
 import java.util.HashSet;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInputParcel.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInputParcel.java
index c2c6234eb..580103942 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInputParcel.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInputParcel.java
@@ -18,7 +18,7 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.CompressionAlgorithmTags;
+import org.bouncycastle.bcpg.CompressionAlgorithmTags;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.Passphrase;
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptOperation.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptOperation.java
index 1290dcdcf..4c3471b21 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptOperation.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptOperation.java
@@ -23,19 +23,19 @@ import android.content.Context;
 import android.os.Parcelable;
 import android.support.annotation.NonNull;
 
-import org.spongycastle.bcpg.ArmoredOutputStream;
-import org.spongycastle.bcpg.BCPGOutputStream;
-import org.spongycastle.bcpg.CompressionAlgorithmTags;
-import org.spongycastle.openpgp.PGPCompressedDataGenerator;
-import org.spongycastle.openpgp.PGPEncryptedDataGenerator;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPLiteralData;
-import org.spongycastle.openpgp.PGPLiteralDataGenerator;
-import org.spongycastle.openpgp.PGPSignatureGenerator;
-import org.spongycastle.openpgp.operator.jcajce.JcePBEKeyEncryptionMethodGenerator;
-import org.spongycastle.openpgp.operator.jcajce.JcePGPDataEncryptorBuilder;
-import org.spongycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder;
-import org.spongycastle.openpgp.operator.jcajce.PGPUtil;
+import org.bouncycastle.bcpg.ArmoredOutputStream;
+import org.bouncycastle.bcpg.BCPGOutputStream;
+import org.bouncycastle.bcpg.CompressionAlgorithmTags;
+import org.bouncycastle.openpgp.PGPCompressedDataGenerator;
+import org.bouncycastle.openpgp.PGPEncryptedDataGenerator;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPLiteralData;
+import org.bouncycastle.openpgp.PGPLiteralDataGenerator;
+import org.bouncycastle.openpgp.PGPSignatureGenerator;
+import org.bouncycastle.openpgp.operator.jcajce.JcePBEKeyEncryptionMethodGenerator;
+import org.bouncycastle.openpgp.operator.jcajce.JcePGPDataEncryptorBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.NfcSyncPGPContentSignerBuilder;
+import org.bouncycastle.openpgp.operator.jcajce.PGPUtil;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.BaseOperation;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignatureChecker.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignatureChecker.java
index ed5566bc1..0d27ee4a7 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignatureChecker.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignatureChecker.java
@@ -9,12 +9,12 @@ import java.io.InputStream;
 import java.security.SignatureException;
 
 import org.openintents.openpgp.OpenPgpSignatureResult;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPOnePassSignature;
-import org.spongycastle.openpgp.PGPOnePassSignatureList;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureList;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPOnePassSignature;
+import org.bouncycastle.openpgp.PGPOnePassSignatureList;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureList;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedKeyRing.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedKeyRing.java
index d1382f3dd..d696b9d70 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedKeyRing.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedKeyRing.java
@@ -35,22 +35,22 @@ import java.util.Set;
 import java.util.TimeZone;
 import java.util.TreeSet;
 
-import org.spongycastle.bcpg.ArmoredOutputStream;
-import org.spongycastle.bcpg.PublicKeyAlgorithmTags;
-import org.spongycastle.bcpg.SignatureSubpacketTags;
-import org.spongycastle.bcpg.UserAttributeSubpacketTags;
-import org.spongycastle.bcpg.sig.KeyFlags;
-import org.spongycastle.openpgp.PGPKeyRing;
-import org.spongycastle.openpgp.PGPObjectFactory;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPPublicKeyRing;
-import org.spongycastle.openpgp.PGPSecretKey;
-import org.spongycastle.openpgp.PGPSecretKeyRing;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureList;
-import org.spongycastle.openpgp.PGPUserAttributeSubpacketVector;
-import org.spongycastle.openpgp.PGPUtil;
-import org.spongycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
+import org.bouncycastle.bcpg.ArmoredOutputStream;
+import org.bouncycastle.bcpg.PublicKeyAlgorithmTags;
+import org.bouncycastle.bcpg.SignatureSubpacketTags;
+import org.bouncycastle.bcpg.UserAttributeSubpacketTags;
+import org.bouncycastle.bcpg.sig.KeyFlags;
+import org.bouncycastle.openpgp.PGPKeyRing;
+import org.bouncycastle.openpgp.PGPObjectFactory;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPPublicKeyRing;
+import org.bouncycastle.openpgp.PGPSecretKey;
+import org.bouncycastle.openpgp.PGPSecretKeyRing;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureList;
+import org.bouncycastle.openpgp.PGPUserAttributeSubpacketVector;
+import org.bouncycastle.openpgp.PGPUtil;
+import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogType;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.OperationLog;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java
index 013a6bf14..4093ce6f7 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java
@@ -18,13 +18,13 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.ECPublicBCPGKey;
-import org.spongycastle.bcpg.SignatureSubpacketTags;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
-import org.spongycastle.openpgp.PGPUserAttributeSubpacketVector;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
+import org.bouncycastle.bcpg.ECPublicBCPGKey;
+import org.bouncycastle.bcpg.SignatureSubpacketTags;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureSubpacketVector;
+import org.bouncycastle.openpgp.PGPUserAttributeSubpacketVector;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 import org.sufficientlysecure.keychain.util.Log;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedSecretKey.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedSecretKey.java
index 4dfd93289..ba96596be 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedSecretKey.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedSecretKey.java
@@ -18,8 +18,8 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.sig.KeyFlags;
-import org.spongycastle.openpgp.PGPSecretKey;
+import org.bouncycastle.bcpg.sig.KeyFlags;
+import org.bouncycastle.openpgp.PGPSecretKey;
 
 import java.io.IOException;
 import java.io.OutputStream;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java
index 65604f58f..49b9484b3 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedSignature.java
@@ -18,20 +18,20 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.SignatureSubpacket;
-import org.spongycastle.bcpg.SignatureSubpacketTags;
-import org.spongycastle.bcpg.sig.Exportable;
-import org.spongycastle.bcpg.sig.NotationData;
-import org.spongycastle.bcpg.sig.Revocable;
-import org.spongycastle.bcpg.sig.RevocationReason;
-import org.spongycastle.openpgp.PGPException;
-import org.spongycastle.openpgp.PGPObjectFactory;
-import org.spongycastle.openpgp.PGPPublicKey;
-import org.spongycastle.openpgp.PGPSignature;
-import org.spongycastle.openpgp.PGPSignatureList;
-import org.spongycastle.openpgp.PGPUserAttributeSubpacketVector;
-import org.spongycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
-import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
+import org.bouncycastle.bcpg.SignatureSubpacket;
+import org.bouncycastle.bcpg.SignatureSubpacketTags;
+import org.bouncycastle.bcpg.sig.Exportable;
+import org.bouncycastle.bcpg.sig.NotationData;
+import org.bouncycastle.bcpg.sig.Revocable;
+import org.bouncycastle.bcpg.sig.RevocationReason;
+import org.bouncycastle.openpgp.PGPException;
+import org.bouncycastle.openpgp.PGPObjectFactory;
+import org.bouncycastle.openpgp.PGPPublicKey;
+import org.bouncycastle.openpgp.PGPSignature;
+import org.bouncycastle.openpgp.PGPSignatureList;
+import org.bouncycastle.openpgp.PGPUserAttributeSubpacketVector;
+import org.bouncycastle.openpgp.operator.jcajce.JcaKeyFingerprintCalculator;
+import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
 import org.sufficientlysecure.keychain.util.Log;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedUserAttribute.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedUserAttribute.java
index 535314607..48bbd2b99 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedUserAttribute.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/WrappedUserAttribute.java
@@ -21,14 +21,14 @@
 
 package org.sufficientlysecure.keychain.pgp;
 
-import org.spongycastle.bcpg.BCPGInputStream;
-import org.spongycastle.bcpg.BCPGOutputStream;
-import org.spongycastle.bcpg.Packet;
-import org.spongycastle.bcpg.UserAttributePacket;
-import org.spongycastle.bcpg.UserAttributeSubpacket;
-import org.spongycastle.bcpg.UserAttributeSubpacketInputStream;
-import org.spongycastle.bcpg.UserAttributeSubpacketTags;
-import org.spongycastle.openpgp.PGPUserAttributeSubpacketVector;
+import org.bouncycastle.bcpg.BCPGInputStream;
+import org.bouncycastle.bcpg.BCPGOutputStream;
+import org.bouncycastle.bcpg.Packet;
+import org.bouncycastle.bcpg.UserAttributePacket;
+import org.bouncycastle.bcpg.UserAttributeSubpacket;
+import org.bouncycastle.bcpg.UserAttributeSubpacketInputStream;
+import org.bouncycastle.bcpg.UserAttributeSubpacketTags;
+import org.bouncycastle.openpgp.PGPUserAttributeSubpacketVector;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java
index 375775ff1..1cd073717 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/ProviderHelper.java
@@ -29,7 +29,7 @@ import android.os.RemoteException;
 import android.support.annotation.NonNull;
 import android.support.v4.util.LongSparseArray;
 
-import org.spongycastle.bcpg.CompressionAlgorithmTags;
+import org.bouncycastle.bcpg.CompressionAlgorithmTags;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
index c3a122388..73d569f06 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java
@@ -36,7 +36,7 @@ import org.openintents.openpgp.OpenPgpError;
 import org.openintents.openpgp.OpenPgpMetadata;
 import org.openintents.openpgp.OpenPgpSignatureResult;
 import org.openintents.openpgp.util.OpenPgpApi;
-import org.spongycastle.bcpg.ArmoredOutputStream;
+import org.bouncycastle.bcpg.ArmoredOutputStream;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult.LogEntryParcel;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java
index 4eee73e01..3b5fdfd8a 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsActivity.java
@@ -33,7 +33,7 @@ import android.widget.TextView;
 
 import com.getbase.floatingactionbutton.FloatingActionButton;
 
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsHeaderFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsHeaderFragment.java
index 9160987ab..2e8671fe0 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsHeaderFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/ui/AppSettingsHeaderFragment.java
@@ -29,7 +29,7 @@ import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
 
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.remote.AppSettings;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java
index b92645777..b53bfc1d0 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateKeyFinalFragment.java
@@ -33,7 +33,7 @@ import android.widget.Button;
 import android.widget.CheckBox;
 import android.widget.TextView;
 
-import org.spongycastle.bcpg.sig.KeyFlags;
+import org.bouncycastle.bcpg.sig.KeyFlags;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.EditKeyResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateSecurityTokenImportResetFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateSecurityTokenImportResetFragment.java
index 81f782149..631848a67 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateSecurityTokenImportResetFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/CreateSecurityTokenImportResetFragment.java
@@ -34,7 +34,7 @@ import android.widget.CompoundButton;
 import android.widget.RadioButton;
 import android.widget.TextView;
 
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.keyimport.ParcelableKeyRing;
 import org.sufficientlysecure.keychain.operations.results.ImportKeyResult;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeySecurityTokenFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeySecurityTokenFragment.java
index 48e41c7bb..8b7734129 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeySecurityTokenFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeySecurityTokenFragment.java
@@ -34,7 +34,7 @@ import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.TextView;
 
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.PromoteKeyResult;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey.SecretKeyType;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SubkeysAddedAdapter.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SubkeysAddedAdapter.java
index d2359a387..8b2481c29 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SubkeysAddedAdapter.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SubkeysAddedAdapter.java
@@ -29,7 +29,7 @@ import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.TextView;
 
-import org.spongycastle.bcpg.sig.KeyFlags;
+import org.bouncycastle.bcpg.sig.KeyFlags;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseSecurityTokenNfcActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseSecurityTokenNfcActivity.java
index 52b439a0d..ae1944ced 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseSecurityTokenNfcActivity.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/base/BaseSecurityTokenNfcActivity.java
@@ -43,9 +43,9 @@ import nordpol.android.AndroidCard;
 import nordpol.android.OnDiscoveredTagListener;
 import nordpol.IsoCard;
 
-import org.spongycastle.bcpg.HashAlgorithmTags;
-import org.spongycastle.util.Arrays;
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.bcpg.HashAlgorithmTags;
+import org.bouncycastle.util.Arrays;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.CanonicalizedSecretKey;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/AddSubkeyDialogFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/AddSubkeyDialogFragment.java
index cd5281c7c..5b75723fb 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/AddSubkeyDialogFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/AddSubkeyDialogFragment.java
@@ -41,7 +41,7 @@ import android.widget.TableRow;
 import android.widget.TextView;
 import android.widget.Toast;
 
-import org.spongycastle.bcpg.sig.KeyFlags;
+import org.bouncycastle.bcpg.sig.KeyFlags;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel;
 import org.sufficientlysecure.keychain.service.SaveKeyringParcel.Algorithm;
@@ -358,7 +358,7 @@ public class AddSubkeyDialogFragment extends DialogFragment {
      * <h3>DSA</h3>
      * <p>For DSA algorithm key length must be between 2048 and 3072. Also, it must me dividable by 64.</p>
      *
-     * @return correct key length, according to SpongyCastle specification. Returns <code>-1</code>, if key length is
+     * @return correct key length, according to BouncyCastle specification. Returns <code>-1</code>, if key length is
      * inappropriate.
      */
     private int getProperKeyLength(Algorithm algorithm, int currentKeyLength) {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateGithubFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateGithubFragment.java
index ccb20a764..e59153d03 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateGithubFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateGithubFragment.java
@@ -64,7 +64,7 @@ import android.widget.ViewAnimator;
 import javax.net.ssl.HttpsURLConnection;
 import org.json.JSONException;
 import org.json.JSONObject;
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.BuildConfig;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java
index b9b837d71..5fcc3d58b 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/util/KeyFormattingUtils.java
@@ -32,11 +32,11 @@ import android.widget.ViewAnimator;
 
 import org.openintents.openpgp.OpenPgpDecryptionResult;
 import org.openintents.openpgp.OpenPgpSignatureResult;
-import org.spongycastle.asn1.ASN1ObjectIdentifier;
-import org.spongycastle.asn1.nist.NISTNamedCurves;
-import org.spongycastle.asn1.teletrust.TeleTrusTNamedCurves;
-import org.spongycastle.bcpg.PublicKeyAlgorithmTags;
-import org.spongycastle.util.encoders.Hex;
+import org.bouncycastle.asn1.ASN1ObjectIdentifier;
+import org.bouncycastle.asn1.nist.NISTNamedCurves;
+import org.bouncycastle.asn1.teletrust.TeleTrusTNamedCurves;
+import org.bouncycastle.bcpg.PublicKeyAlgorithmTags;
+import org.bouncycastle.util.encoders.Hex;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult;