mirror of
https://github.com/moparisthebest/open-keychain
synced 2024-08-13 15:53:53 -04:00
Enforce private key for applications, verify signed-only texts without passphrase input, better internal decrypt and verify method
This commit is contained in:
Dominik Schürmann
parent
89a4c38cc0
commit
06f9134eb1
@ -38,24 +38,40 @@ public class OpenPgpSignatureResult implements Parcelable {
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return status;
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}
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public void setStatus(int status) {
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this.status = status;
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}
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public boolean isSignatureOnly() {
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return signatureOnly;
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}
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public void setSignatureOnly(boolean signatureOnly) {
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this.signatureOnly = signatureOnly;
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}
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public String getUserId() {
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return userId;
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}
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public void setUserId(String userId) {
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this.userId = userId;
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}
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public long getKeyId() {
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return keyId;
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}
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public void setKeyId(long keyId) {
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this.keyId = keyId;
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}
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public OpenPgpSignatureResult() {
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}
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public OpenPgpSignatureResult(int signatureStatus, String signatureUserId,
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boolean signatureOnly, long keyId) {
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boolean signatureOnly, long keyId) {
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this.status = signatureStatus;
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this.signatureOnly = signatureOnly;
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this.userId = signatureUserId;
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@ -18,8 +18,8 @@
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package org.sufficientlysecure.keychain.pgp;
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import android.content.Context;
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import android.os.Bundle;
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import org.openintents.openpgp.OpenPgpSignatureResult;
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import org.spongycastle.bcpg.ArmoredInputStream;
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import org.spongycastle.bcpg.SignatureSubpacketTags;
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import org.spongycastle.openpgp.PGPCompressedData;
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@ -36,6 +36,7 @@ import org.spongycastle.openpgp.PGPPublicKey;
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import org.spongycastle.openpgp.PGPPublicKeyEncryptedData;
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import org.spongycastle.openpgp.PGPPublicKeyRing;
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import org.spongycastle.openpgp.PGPSecretKey;
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import org.spongycastle.openpgp.PGPSecretKeyRing;
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import org.spongycastle.openpgp.PGPSignature;
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import org.spongycastle.openpgp.PGPSignatureList;
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import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
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@ -53,7 +54,7 @@ import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.service.KeychainIntentService;
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import org.sufficientlysecure.keychain.service.PassphraseCacheService;
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import org.sufficientlysecure.keychain.util.InputData;
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import org.sufficientlysecure.keychain.util.Log;
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import org.sufficientlysecure.keychain.util.ProgressDialogUpdater;
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@ -75,9 +76,10 @@ public class PgpDecryptVerify {
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private InputData data;
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private OutputStream outStream;
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private ProgressDialogUpdater progress;
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boolean assumeSymmetric;
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String passphrase;
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private ProgressDialogUpdater progressDialogUpdater;
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private boolean assumeSymmetric;
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private String passphrase;
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private long enforcedKeyId;
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private PgpDecryptVerify(Builder builder) {
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// private Constructor can only be called from Builder
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@ -85,9 +87,10 @@ public class PgpDecryptVerify {
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this.data = builder.data;
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this.outStream = builder.outStream;
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this.progress = builder.progress;
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this.progressDialogUpdater = builder.progressDialogUpdater;
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this.assumeSymmetric = builder.assumeSymmetric;
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this.passphrase = builder.passphrase;
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this.enforcedKeyId = builder.enforcedKeyId;
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}
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public static class Builder {
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@ -97,9 +100,10 @@ public class PgpDecryptVerify {
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private OutputStream outStream;
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// optional
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private ProgressDialogUpdater progress = null;
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private ProgressDialogUpdater progressDialogUpdater = null;
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private boolean assumeSymmetric = false;
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private String passphrase = "";
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private long enforcedKeyId = 0;
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public Builder(Context context, InputData data, OutputStream outStream) {
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this.context = context;
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@ -107,8 +111,8 @@ public class PgpDecryptVerify {
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this.outStream = outStream;
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}
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public Builder progress(ProgressDialogUpdater progress) {
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this.progress = progress;
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public Builder progressDialogUpdater(ProgressDialogUpdater progressDialogUpdater) {
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this.progressDialogUpdater = progressDialogUpdater;
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return this;
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}
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@ -122,20 +126,32 @@ public class PgpDecryptVerify {
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return this;
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}
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/**
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* Allow this key id alone for decryption.
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* This means only ciphertexts encrypted for this private key can be decrypted.
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*
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* @param enforcedKeyId
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* @return
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*/
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public Builder enforcedKeyId(long enforcedKeyId) {
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this.enforcedKeyId = enforcedKeyId;
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return this;
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}
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public PgpDecryptVerify build() {
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return new PgpDecryptVerify(this);
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}
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}
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public void updateProgress(int message, int current, int total) {
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if (progress != null) {
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progress.setProgress(message, current, total);
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if (progressDialogUpdater != null) {
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progressDialogUpdater.setProgress(message, current, total);
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}
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}
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public void updateProgress(int current, int total) {
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if (progress != null) {
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progress.setProgress(current, total);
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if (progressDialogUpdater != null) {
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progressDialogUpdater.setProgress(current, total);
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}
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}
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@ -177,9 +193,8 @@ public class PgpDecryptVerify {
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* @throws PGPException
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* @throws SignatureException
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*/
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public Bundle execute()
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public PgpDecryptVerifyResult execute()
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throws IOException, PgpGeneralException, PGPException, SignatureException {
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// automatically works with ascii armor input and binary
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InputStream in = PGPUtil.getDecoderStream(data.getInputStream());
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if (in instanceof ArmoredInputStream) {
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@ -207,9 +222,9 @@ public class PgpDecryptVerify {
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* @throws PGPException
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* @throws SignatureException
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*/
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private Bundle decryptVerify(InputStream in)
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private PgpDecryptVerifyResult decryptVerify(InputStream in)
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throws IOException, PgpGeneralException, PGPException, SignatureException {
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Bundle returnData = new Bundle();
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PgpDecryptVerifyResult returnData = new PgpDecryptVerifyResult();
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PGPObjectFactory pgpF = new PGPObjectFactory(in);
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PGPEncryptedDataList enc;
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@ -277,9 +292,38 @@ public class PgpDecryptVerify {
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PGPPublicKeyEncryptedData encData = (PGPPublicKeyEncryptedData) obj;
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secretKey = ProviderHelper.getPGPSecretKeyByKeyId(context, encData.getKeyID());
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if (secretKey != null) {
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// secret key exists in database
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// allow only a specific key for decryption?
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if (enforcedKeyId != 0) {
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// TODO: improve this code! get master key directly!
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PGPSecretKeyRing secretKeyRing = ProviderHelper.getPGPSecretKeyRingByKeyId(context, encData.getKeyID());
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long masterKeyId = PgpKeyHelper.getMasterKey(secretKeyRing).getKeyID();
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Log.d(Constants.TAG, "encData.getKeyID():" + encData.getKeyID());
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Log.d(Constants.TAG, "enforcedKeyId: " + enforcedKeyId);
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Log.d(Constants.TAG, "masterKeyId: " + masterKeyId);
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if (enforcedKeyId != masterKeyId) {
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throw new PgpGeneralException(context.getString(R.string.error_no_secret_key_found));
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}
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}
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pbe = encData;
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// passphrase handling...
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if (passphrase == null) {
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// try to get cached passphrase
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passphrase = PassphraseCacheService.getCachedPassphrase(context, encData.getKeyID());
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}
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// if passphrase was not cached, return here!
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if (passphrase == null) {
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returnData.setKeyPassphraseNeeded(true);
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return returnData;
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}
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break;
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}
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}
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}
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@ -317,6 +361,7 @@ public class PgpDecryptVerify {
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PGPObjectFactory plainFact = new PGPObjectFactory(clear);
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Object dataChunk = plainFact.nextObject();
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PGPOnePassSignature signature = null;
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OpenPgpSignatureResult signatureResult = null;
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PGPPublicKey signatureKey = null;
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int signatureIndex = -1;
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@ -334,7 +379,7 @@ public class PgpDecryptVerify {
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if (dataChunk instanceof PGPOnePassSignatureList) {
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updateProgress(R.string.progress_processing_signature, currentProgress, 100);
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returnData.putBoolean(KeychainIntentService.RESULT_SIGNATURE, true);
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signatureResult = new OpenPgpSignatureResult();
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PGPOnePassSignatureList sigList = (PGPOnePassSignatureList) dataChunk;
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for (int i = 0; i < sigList.size(); ++i) {
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signature = sigList.get(i);
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@ -354,12 +399,12 @@ public class PgpDecryptVerify {
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if (signKeyRing != null) {
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userId = PgpKeyHelper.getMainUserId(PgpKeyHelper.getMasterKey(signKeyRing));
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}
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returnData.putString(KeychainIntentService.RESULT_SIGNATURE_USER_ID, userId);
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signatureResult.setUserId(userId);
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break;
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}
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}
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returnData.putLong(KeychainIntentService.RESULT_SIGNATURE_KEY_ID, signatureKeyId);
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signatureResult.setKeyId(signatureKeyId);
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if (signature != null) {
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JcaPGPContentVerifierBuilderProvider contentVerifierBuilderProvider = new JcaPGPContentVerifierBuilderProvider()
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@ -367,7 +412,7 @@ public class PgpDecryptVerify {
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signature.init(contentVerifierBuilderProvider, signatureKey);
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} else {
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returnData.putBoolean(KeychainIntentService.RESULT_SIGNATURE_UNKNOWN, true);
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signatureResult.setStatus(OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY);
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}
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dataChunk = plainFact.nextObject();
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@ -395,25 +440,24 @@ public class PgpDecryptVerify {
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}
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int n;
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// TODO: progress calculation is broken here! Try to rework it based on commented code!
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// int progress = 0;
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// TODO: progressDialogUpdater calculation is broken here! Try to rework it based on commented code!
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// int progressDialogUpdater = 0;
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long startPos = data.getStreamPosition();
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while ((n = dataIn.read(buffer)) > 0) {
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outStream.write(buffer, 0, n);
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// progress += n;
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// progressDialogUpdater += n;
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if (signature != null) {
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try {
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signature.update(buffer, 0, n);
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} catch (SignatureException e) {
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returnData
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.putBoolean(KeychainIntentService.RESULT_SIGNATURE_SUCCESS, false);
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signatureResult.setStatus(OpenPgpSignatureResult.SIGNATURE_ERROR);
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signature = null;
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}
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}
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// TODO: dead code?!
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// unknown size, but try to at least have a moving, slowing down progress bar
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// currentProgress = startProgress + (endProgress - startProgress) * progress
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// / (progress + 100000);
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// unknown size, but try to at least have a moving, slowing down progressDialogUpdater bar
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// currentProgress = startProgress + (endProgress - startProgress) * progressDialogUpdater
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// / (progressDialogUpdater + 100000);
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if (data.getSize() - startPos == 0) {
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currentProgress = endProgress;
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} else {
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@ -430,17 +474,20 @@ public class PgpDecryptVerify {
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PGPSignature messageSignature = signatureList.get(signatureIndex);
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// these are not cleartext signatures!
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returnData.putBoolean(KeychainIntentService.RESULT_CLEARTEXT_SIGNATURE_ONLY, false);
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// TODO: what about binary signatures?
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signatureResult.setSignatureOnly(false);
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//Now check binding signatures
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boolean keyBinding_isok = verifyKeyBinding(context, messageSignature, signatureKey);
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boolean sig_isok = signature.verify(messageSignature);
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returnData.putBoolean(KeychainIntentService.RESULT_SIGNATURE_SUCCESS, keyBinding_isok & sig_isok);
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// TODO: implement CERTIFIED!
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if (keyBinding_isok & sig_isok) {
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signatureResult.setStatus(OpenPgpSignatureResult.SIGNATURE_SUCCESS_UNCERTIFIED);
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}
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}
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}
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// TODO: test if this integrity really check works!
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if (encryptedData.isIntegrityProtected()) {
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updateProgress(R.string.progress_verifying_integrity, 95, 100);
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@ -455,9 +502,12 @@ public class PgpDecryptVerify {
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} else {
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// no integrity check
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Log.e(Constants.TAG, "Encrypted data was not integrity protected!");
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// TODO: inform user?
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}
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updateProgress(R.string.progress_done, 100, 100);
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returnData.setSignatureResult(signatureResult);
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return returnData;
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}
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@ -474,11 +524,12 @@ public class PgpDecryptVerify {
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* @throws PGPException
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* @throws SignatureException
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*/
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private Bundle verifyCleartextSignature(ArmoredInputStream aIn)
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private PgpDecryptVerifyResult verifyCleartextSignature(ArmoredInputStream aIn)
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throws IOException, PgpGeneralException, PGPException, SignatureException {
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Bundle returnData = new Bundle();
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PgpDecryptVerifyResult returnData = new PgpDecryptVerifyResult();
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OpenPgpSignatureResult signatureResult = new OpenPgpSignatureResult();
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// cleartext signatures are never encrypted ;)
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returnData.putBoolean(KeychainIntentService.RESULT_CLEARTEXT_SIGNATURE_ONLY, true);
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signatureResult.setSignatureOnly(true);
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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@ -504,8 +555,6 @@ public class PgpDecryptVerify {
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byte[] clearText = out.toByteArray();
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outStream.write(clearText);
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returnData.putBoolean(KeychainIntentService.RESULT_SIGNATURE, true);
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updateProgress(R.string.progress_processing_signature, 60, 100);
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PGPObjectFactory pgpFact = new PGPObjectFactory(aIn);
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@ -533,15 +582,15 @@ public class PgpDecryptVerify {
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if (signKeyRing != null) {
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userId = PgpKeyHelper.getMainUserId(PgpKeyHelper.getMasterKey(signKeyRing));
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}
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returnData.putString(KeychainIntentService.RESULT_SIGNATURE_USER_ID, userId);
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signatureResult.setUserId(userId);
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break;
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}
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}
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returnData.putLong(KeychainIntentService.RESULT_SIGNATURE_KEY_ID, signatureKeyId);
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signatureResult.setKeyId(signatureKeyId);
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if (signature == null) {
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returnData.putBoolean(KeychainIntentService.RESULT_SIGNATURE_UNKNOWN, true);
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signatureResult.setStatus(OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY);
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updateProgress(R.string.progress_done, 100, 100);
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return returnData;
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}
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@ -574,9 +623,15 @@ public class PgpDecryptVerify {
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//Now check binding signatures
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boolean keyBinding_isok = verifyKeyBinding(context, signature, signatureKey);
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returnData.putBoolean(KeychainIntentService.RESULT_SIGNATURE_SUCCESS, sig_isok & keyBinding_isok);
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if (sig_isok & keyBinding_isok) {
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signatureResult.setStatus(OpenPgpSignatureResult.SIGNATURE_SUCCESS_UNCERTIFIED);
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}
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// TODO: what about SIGNATURE_SUCCESS_CERTIFIED and SIGNATURE_ERROR????
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updateProgress(R.string.progress_done, 100, 100);
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returnData.setSignatureResult(signatureResult);
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return returnData;
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}
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@ -0,0 +1,88 @@
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/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.pgp;
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import android.os.Parcel;
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import android.os.Parcelable;
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import org.openintents.openpgp.OpenPgpSignatureResult;
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public class PgpDecryptVerifyResult implements Parcelable {
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boolean symmetricPassphraseNeeded;
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boolean keyPassphraseNeeded;
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OpenPgpSignatureResult signatureResult;
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public boolean isSymmetricPassphraseNeeded() {
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return symmetricPassphraseNeeded;
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}
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public void setSymmetricPassphraseNeeded(boolean symmetricPassphraseNeeded) {
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this.symmetricPassphraseNeeded = symmetricPassphraseNeeded;
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}
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public boolean isKeyPassphraseNeeded() {
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return keyPassphraseNeeded;
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}
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public void setKeyPassphraseNeeded(boolean keyPassphraseNeeded) {
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this.keyPassphraseNeeded = keyPassphraseNeeded;
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}
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public OpenPgpSignatureResult getSignatureResult() {
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return signatureResult;
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}
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public void setSignatureResult(OpenPgpSignatureResult signatureResult) {
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this.signatureResult = signatureResult;
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}
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public PgpDecryptVerifyResult() {
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}
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public PgpDecryptVerifyResult(PgpDecryptVerifyResult b) {
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this.symmetricPassphraseNeeded = b.symmetricPassphraseNeeded;
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this.keyPassphraseNeeded = b.keyPassphraseNeeded;
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this.signatureResult = b.signatureResult;
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}
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public int describeContents() {
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return 0;
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}
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public void writeToParcel(Parcel dest, int flags) {
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dest.writeByte((byte) (symmetricPassphraseNeeded ? 1 : 0));
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dest.writeByte((byte) (keyPassphraseNeeded ? 1 : 0));
|
||||
dest.writeParcelable(signatureResult, 0);
|
||||
}
|
||||
|
||||
public static final Creator<PgpDecryptVerifyResult> CREATOR = new Creator<PgpDecryptVerifyResult>() {
|
||||
public PgpDecryptVerifyResult createFromParcel(final Parcel source) {
|
||||
PgpDecryptVerifyResult vr = new PgpDecryptVerifyResult();
|
||||
vr.symmetricPassphraseNeeded = source.readByte() == 1;
|
||||
vr.keyPassphraseNeeded = source.readByte() == 1;
|
||||
vr.signatureResult = source.readParcelable(OpenPgpSignatureResult.class.getClassLoader());
|
||||
return vr;
|
||||
}
|
||||
|
||||
public PgpDecryptVerifyResult[] newArray(final int size) {
|
||||
return new PgpDecryptVerifyResult[size];
|
||||
}
|
||||
};
|
||||
}
|
||||
@ -44,6 +44,7 @@ import org.sufficientlysecure.keychain.helper.OtherHelper;
|
||||
import org.sufficientlysecure.keychain.helper.Preferences;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpConversionHelper;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpHelper;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpImportExport;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpKeyOperation;
|
||||
@ -181,13 +182,7 @@ public class KeychainIntentService extends IntentService implements ProgressDial
|
||||
// decrypt/verify
|
||||
public static final String RESULT_DECRYPTED_STRING = "decrypted_message";
|
||||
public static final String RESULT_DECRYPTED_BYTES = "decrypted_data";
|
||||
public static final String RESULT_SIGNATURE = "signature";
|
||||
public static final String RESULT_SIGNATURE_KEY_ID = "signature_key_id";
|
||||
public static final String RESULT_SIGNATURE_USER_ID = "signature_user_id";
|
||||
public static final String RESULT_CLEARTEXT_SIGNATURE_ONLY = "signature_only";
|
||||
|
||||
public static final String RESULT_SIGNATURE_SUCCESS = "signature_success";
|
||||
public static final String RESULT_SIGNATURE_UNKNOWN = "signature_unknown";
|
||||
public static final String RESULT_DECRYPT_VERIFY_RESULT = "signature";
|
||||
|
||||
// import
|
||||
public static final String RESULT_IMPORT_ADDED = "added";
|
||||
@ -489,15 +484,17 @@ public class KeychainIntentService extends IntentService implements ProgressDial
|
||||
// verifyText and decrypt returning additional resultData values for the
|
||||
// verification of signatures
|
||||
PgpDecryptVerify.Builder builder = new PgpDecryptVerify.Builder(this, inputData, outStream);
|
||||
builder.progress(this);
|
||||
builder.progressDialogUpdater(this);
|
||||
|
||||
builder.assumeSymmetric(assumeSymmetricEncryption)
|
||||
.passphrase(PassphraseCacheService.getCachedPassphrase(this, secretKeyId));
|
||||
|
||||
resultData = builder.build().execute();
|
||||
PgpDecryptVerifyResult decryptVerifyResult = builder.build().execute();
|
||||
|
||||
outStream.close();
|
||||
|
||||
resultData.putParcelable(RESULT_DECRYPT_VERIFY_RESULT, decryptVerifyResult);
|
||||
|
||||
/* Output */
|
||||
|
||||
switch (target) {
|
||||
@ -867,10 +864,10 @@ public class KeychainIntentService extends IntentService implements ProgressDial
|
||||
}
|
||||
|
||||
/**
|
||||
* Set progress of ProgressDialog by sending message to handler on UI thread
|
||||
* Set progressDialogUpdater of ProgressDialog by sending message to handler on UI thread
|
||||
*/
|
||||
public void setProgress(String message, int progress, int max) {
|
||||
Log.d(Constants.TAG, "Send message by setProgress with progress=" + progress + ", max="
|
||||
Log.d(Constants.TAG, "Send message by setProgress with progressDialogUpdater=" + progress + ", max="
|
||||
+ max);
|
||||
|
||||
Bundle data = new Bundle();
|
||||
|
||||
@ -21,7 +21,6 @@ import android.app.PendingIntent;
|
||||
import android.content.Intent;
|
||||
import android.database.Cursor;
|
||||
import android.net.Uri;
|
||||
import android.os.Bundle;
|
||||
import android.os.IBinder;
|
||||
import android.os.ParcelFileDescriptor;
|
||||
|
||||
@ -33,9 +32,10 @@ import org.spongycastle.util.Arrays;
|
||||
import org.sufficientlysecure.keychain.Constants;
|
||||
import org.sufficientlysecure.keychain.Id;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpSignEncrypt;
|
||||
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract;
|
||||
import org.sufficientlysecure.keychain.service.KeychainIntentService;
|
||||
import org.sufficientlysecure.keychain.service.PassphraseCacheService;
|
||||
import org.sufficientlysecure.keychain.util.InputData;
|
||||
import org.sufficientlysecure.keychain.util.Log;
|
||||
@ -284,98 +284,29 @@ public class OpenPgpService extends RemoteService {
|
||||
Intent result = new Intent();
|
||||
try {
|
||||
|
||||
// TODO:
|
||||
// fix the mess: http://stackoverflow.com/questions/148130/how-do-i-peek-at-the-first-two-bytes-in-an-inputstream
|
||||
// should we allow to decrypt everything under every key id or only the one set?
|
||||
// TODO: instead of trying to get the passphrase before
|
||||
// pause stream when passphrase is missing and then resume
|
||||
|
||||
// TODO: put this code into PgpDecryptVerify class
|
||||
|
||||
// TODO: This allows to decrypt messages with ALL secret keys, not only the one for the
|
||||
// app, Fix this?
|
||||
// String passphrase = null;
|
||||
// if (!signedOnly) {
|
||||
// // BEGIN Get key
|
||||
// // TODO: this input stream is consumed after PgpMain.getDecryptionKeyId()... do it
|
||||
// // better!
|
||||
// InputStream inputStream2 = new ByteArrayInputStream(inputBytes);
|
||||
//
|
||||
// // TODO: duplicates functions from DecryptActivity!
|
||||
// long secretKeyId;
|
||||
// try {
|
||||
// if (inputStream2.markSupported()) {
|
||||
// // should probably set this to the max size of two
|
||||
// // pgpF objects, if it even needs to be anything other
|
||||
// // than 0.
|
||||
// inputStream2.mark(200);
|
||||
// }
|
||||
// secretKeyId = PgpHelper.getDecryptionKeyId(this, inputStream2);
|
||||
// if (secretKeyId == Id.key.none) {
|
||||
// throw new PgpGeneralException(getString(R.string.error_no_secret_key_found));
|
||||
// }
|
||||
// } catch (NoAsymmetricEncryptionException e) {
|
||||
// if (inputStream2.markSupported()) {
|
||||
// inputStream2.reset();
|
||||
// }
|
||||
// secretKeyId = Id.key.symmetric;
|
||||
// if (!PgpDecryptVerify.hasSymmetricEncryption(this, inputStream2)) {
|
||||
// throw new PgpGeneralException(
|
||||
// getString(R.string.error_no_known_encryption_found));
|
||||
// }
|
||||
// // we do not support symmetric decryption from the API!
|
||||
// throw new Exception("Symmetric decryption is not supported!");
|
||||
// }
|
||||
//
|
||||
// Log.d(Constants.TAG, "secretKeyId " + secretKeyId);
|
||||
|
||||
// NOTE: currently this only gets the passphrase for the key set for this client
|
||||
String passphrase;
|
||||
if (data.hasExtra(OpenPgpApi.EXTRA_PASSPHRASE)) {
|
||||
passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
|
||||
} else {
|
||||
passphrase = PassphraseCacheService.getCachedPassphrase(getContext(), appSettings.getKeyId());
|
||||
}
|
||||
if (passphrase == null) {
|
||||
// get PendingIntent for passphrase input, add it to given params and return to client
|
||||
Intent passphraseBundle = getPassphraseBundleIntent(data, appSettings.getKeyId());
|
||||
return passphraseBundle;
|
||||
}
|
||||
|
||||
String passphrase = data.getStringExtra(OpenPgpApi.EXTRA_PASSPHRASE);
|
||||
long inputLength = is.available();
|
||||
InputData inputData = new InputData(is, inputLength);
|
||||
|
||||
Bundle outputBundle;
|
||||
PgpDecryptVerify.Builder builder = new PgpDecryptVerify.Builder(this, inputData, os);
|
||||
|
||||
builder.assumeSymmetric(false)
|
||||
builder.assumeSymmetric(false) // no support for symmetric encryption
|
||||
.enforcedKeyId(appSettings.getKeyId()) // allow only the private key for this app for decryption
|
||||
.passphrase(passphrase);
|
||||
|
||||
// TODO: this also decrypts with other secret keys that have no passphrase!!!
|
||||
outputBundle = builder.build().execute();
|
||||
// TODO: currently does not support binary signed-only content
|
||||
PgpDecryptVerifyResult decryptVerifyResult = builder.build().execute();
|
||||
|
||||
//TODO: instead of using all these wrapping use OpenPgpSignatureResult directly
|
||||
// in DecryptVerify class and then in DecryptActivity
|
||||
boolean signature = outputBundle.getBoolean(KeychainIntentService.RESULT_SIGNATURE, false);
|
||||
if (signature) {
|
||||
long signatureKeyId = outputBundle
|
||||
.getLong(KeychainIntentService.RESULT_SIGNATURE_KEY_ID, 0);
|
||||
String signatureUserId = outputBundle
|
||||
.getString(KeychainIntentService.RESULT_SIGNATURE_USER_ID);
|
||||
boolean signatureSuccess = outputBundle
|
||||
.getBoolean(KeychainIntentService.RESULT_SIGNATURE_SUCCESS, false);
|
||||
boolean signatureUnknown = outputBundle
|
||||
.getBoolean(KeychainIntentService.RESULT_SIGNATURE_UNKNOWN, false);
|
||||
boolean signatureOnly = outputBundle
|
||||
.getBoolean(KeychainIntentService.RESULT_CLEARTEXT_SIGNATURE_ONLY, false);
|
||||
|
||||
// TODO: SIGNATURE_SUCCESS_CERTIFIED is currently not implemented
|
||||
int signatureStatus = OpenPgpSignatureResult.SIGNATURE_ERROR;
|
||||
if (signatureSuccess) {
|
||||
signatureStatus = OpenPgpSignatureResult.SIGNATURE_SUCCESS_UNCERTIFIED;
|
||||
} else if (signatureUnknown) {
|
||||
signatureStatus = OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY;
|
||||
if (decryptVerifyResult.isKeyPassphraseNeeded()) {
|
||||
// get PendingIntent for passphrase input, add it to given params and return to client
|
||||
Intent passphraseBundle = getPassphraseBundleIntent(data, appSettings.getKeyId());
|
||||
return passphraseBundle;
|
||||
} else if (decryptVerifyResult.isSymmetricPassphraseNeeded()) {
|
||||
throw new PgpGeneralException("Decryption of symmetric content not supported by API!");
|
||||
}
|
||||
|
||||
OpenPgpSignatureResult signatureResult = decryptVerifyResult.getSignatureResult();
|
||||
if (signatureResult != null) {
|
||||
if (signatureResult.getStatus() == OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY) {
|
||||
// If signature is unknown we return an additional PendingIntent
|
||||
// to retrieve the missing key
|
||||
// TODO!!!
|
||||
@ -390,11 +321,9 @@ public class OpenPgpService extends RemoteService {
|
||||
result.putExtra(OpenPgpApi.RESULT_INTENT, pi);
|
||||
}
|
||||
|
||||
|
||||
OpenPgpSignatureResult sigResult = new OpenPgpSignatureResult(signatureStatus,
|
||||
signatureUserId, signatureOnly, signatureKeyId);
|
||||
result.putExtra(OpenPgpApi.RESULT_SIGNATURE, sigResult);
|
||||
result.putExtra(OpenPgpApi.RESULT_SIGNATURE, signatureResult);
|
||||
}
|
||||
|
||||
} finally {
|
||||
is.close();
|
||||
os.close();
|
||||
|
||||
@ -25,6 +25,7 @@ import java.io.FileNotFoundException;
|
||||
import java.io.InputStream;
|
||||
import java.util.regex.Matcher;
|
||||
|
||||
import org.openintents.openpgp.OpenPgpSignatureResult;
|
||||
import org.spongycastle.openpgp.PGPPublicKeyRing;
|
||||
import org.sufficientlysecure.keychain.Constants;
|
||||
import org.sufficientlysecure.keychain.Id;
|
||||
@ -32,6 +33,7 @@ import org.sufficientlysecure.keychain.R;
|
||||
import org.sufficientlysecure.keychain.compatibility.ClipboardReflection;
|
||||
import org.sufficientlysecure.keychain.helper.ActionBarHelper;
|
||||
import org.sufficientlysecure.keychain.helper.FileHelper;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyResult;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpHelper;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify;
|
||||
@ -690,11 +692,15 @@ public class DecryptActivity extends DrawerActivity {
|
||||
|
||||
}
|
||||
|
||||
if (returnData.getBoolean(KeychainIntentService.RESULT_SIGNATURE)) {
|
||||
String userId = returnData
|
||||
.getString(KeychainIntentService.RESULT_SIGNATURE_USER_ID);
|
||||
mSignatureKeyId = returnData
|
||||
.getLong(KeychainIntentService.RESULT_SIGNATURE_KEY_ID);
|
||||
PgpDecryptVerifyResult decryptVerifyResult =
|
||||
returnData.getParcelable(KeychainIntentService.RESULT_DECRYPT_VERIFY_RESULT);
|
||||
|
||||
OpenPgpSignatureResult signatureResult = decryptVerifyResult.getSignatureResult();
|
||||
|
||||
if (signatureResult != null) {
|
||||
|
||||
String userId = signatureResult.getUserId();
|
||||
mSignatureKeyId = signatureResult.getKeyId();
|
||||
mUserIdRest.setText("id: "
|
||||
+ PgpKeyHelper.convertKeyIdToHex(mSignatureKeyId));
|
||||
if (userId == null) {
|
||||
@ -707,19 +713,32 @@ public class DecryptActivity extends DrawerActivity {
|
||||
}
|
||||
mUserId.setText(userId);
|
||||
|
||||
if (returnData.getBoolean(KeychainIntentService.RESULT_SIGNATURE_SUCCESS)) {
|
||||
mSignatureStatusImage.setImageResource(R.drawable.overlay_ok);
|
||||
mLookupKey.setVisibility(View.GONE);
|
||||
} else if (returnData
|
||||
.getBoolean(KeychainIntentService.RESULT_SIGNATURE_UNKNOWN)) {
|
||||
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
|
||||
mLookupKey.setVisibility(View.VISIBLE);
|
||||
AppMsg.makeText(DecryptActivity.this,
|
||||
R.string.unknown_signature,
|
||||
AppMsg.STYLE_ALERT).show();
|
||||
} else {
|
||||
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
|
||||
mLookupKey.setVisibility(View.GONE);
|
||||
switch (signatureResult.getStatus()) {
|
||||
case OpenPgpSignatureResult.SIGNATURE_SUCCESS_UNCERTIFIED: {
|
||||
mSignatureStatusImage.setImageResource(R.drawable.overlay_ok);
|
||||
mLookupKey.setVisibility(View.GONE);
|
||||
break;
|
||||
}
|
||||
|
||||
// TODO!
|
||||
// case OpenPgpSignatureResult.SIGNATURE_SUCCESS_CERTIFIED: {
|
||||
// break;
|
||||
// }
|
||||
|
||||
case OpenPgpSignatureResult.SIGNATURE_UNKNOWN_PUB_KEY: {
|
||||
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
|
||||
mLookupKey.setVisibility(View.VISIBLE);
|
||||
AppMsg.makeText(DecryptActivity.this,
|
||||
R.string.unknown_signature,
|
||||
AppMsg.STYLE_ALERT).show();
|
||||
break;
|
||||
}
|
||||
|
||||
default: {
|
||||
mSignatureStatusImage.setImageResource(R.drawable.overlay_error);
|
||||
mLookupKey.setVisibility(View.GONE);
|
||||
break;
|
||||
}
|
||||
}
|
||||
mSignatureLayout.setVisibility(View.VISIBLE);
|
||||
}
|
||||
@ -733,7 +752,7 @@ public class DecryptActivity extends DrawerActivity {
|
||||
Messenger messenger = new Messenger(saveHandler);
|
||||
intent.putExtra(KeychainIntentService.EXTRA_MESSENGER, messenger);
|
||||
|
||||
// show progress dialog
|
||||
// show progressDialogUpdater dialog
|
||||
saveHandler.showProgressDialog(this);
|
||||
|
||||
// start service with intent
|
||||
|
||||
Loading…
Reference in New Issue
Block a user