diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure')
15 files changed, 857 insertions, 215 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/PgpSignEncryptResult.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/PgpSignEncryptResult.java index de2f64404..a1204c0b5 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/PgpSignEncryptResult.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/PgpSignEncryptResult.java @@ -35,7 +35,6 @@ public class PgpSignEncryptResult extends OperationResult { long mNfcKeyId; byte[] mNfcHash; int mNfcAlgo; - Date mNfcTimestamp; String mNfcPassphrase; byte[] mDetachedSignature; @@ -47,11 +46,10 @@ public class PgpSignEncryptResult extends OperationResult { mKeyIdPassphraseNeeded = keyIdPassphraseNeeded; } - public void setNfcData(long nfcKeyId, byte[] nfcHash, int nfcAlgo, Date nfcTimestamp, String passphrase) { + public void setNfcData(long nfcKeyId, byte[] nfcHash, int nfcAlgo, String passphrase) { mNfcKeyId = nfcKeyId; mNfcHash = nfcHash; mNfcAlgo = nfcAlgo; - mNfcTimestamp = nfcTimestamp; mNfcPassphrase = passphrase; } @@ -71,10 +69,6 @@ public class PgpSignEncryptResult extends OperationResult { return mNfcAlgo; } - public Date getNfcTimestamp() { - return mNfcTimestamp; - } - public String getNfcPassphrase() { return mNfcPassphrase; } @@ -95,7 +89,6 @@ public class PgpSignEncryptResult extends OperationResult { super(source); mNfcHash = source.readInt() != 0 ? source.createByteArray() : null; mNfcAlgo = source.readInt(); - mNfcTimestamp = source.readInt() != 0 ? new Date(source.readLong()) : null; mDetachedSignature = source.readInt() != 0 ? source.createByteArray() : null; } @@ -112,12 +105,6 @@ public class PgpSignEncryptResult extends OperationResult { dest.writeInt(0); } dest.writeInt(mNfcAlgo); - if (mNfcTimestamp != null) { - dest.writeInt(1); - dest.writeLong(mNfcTimestamp.getTime()); - } else { - dest.writeInt(0); - } if (mDetachedSignature != null) { dest.writeInt(1); dest.writeByteArray(mDetachedSignature); diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java index ed0de65b0..23e8094b9 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/operations/results/SignEncryptResult.java @@ -21,6 +21,9 @@ import android.os.Parcel; import java.util.ArrayList; +import org.sufficientlysecure.keychain.service.input.NfcOperationsParcel; + + public class SignEncryptResult extends OperationResult { ArrayList<PgpSignEncryptResult> mResults; 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 ab91d7747..df409902f 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKey.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedSecretKey.java @@ -42,10 +42,13 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException; import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException; import org.sufficientlysecure.keychain.util.Log; +import java.nio.ByteBuffer; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; +import java.util.Map; + /** * Wrapper for a PGPSecretKey. @@ -183,13 +186,13 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { return PgpConstants.sPreferredHashAlgorithms; } - private PGPContentSignerBuilder getContentSignerBuilder(int hashAlgo, byte[] nfcSignedHash, - Date nfcCreationTimestamp) { + private PGPContentSignerBuilder getContentSignerBuilder(int hashAlgo, + Map<ByteBuffer,byte[]> signedHashes) { if (mPrivateKeyState == PRIVATE_KEY_STATE_DIVERT_TO_CARD) { // use synchronous "NFC based" SignerBuilder return new NfcSyncPGPContentSignerBuilder( mSecretKey.getPublicKey().getAlgorithm(), hashAlgo, - mSecretKey.getKeyID(), nfcSignedHash, nfcCreationTimestamp) + mSecretKey.getKeyID(), signedHashes) .setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME); } else { // content signer based on signing key algorithm and chosen hash algorithm @@ -200,28 +203,24 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { } public PGPSignatureGenerator getSignatureGenerator(int hashAlgo, boolean cleartext, - byte[] nfcSignedHash, Date nfcCreationTimestamp) + Map<ByteBuffer,byte[]> signedHashes, Date creationTimestamp) throws PgpGeneralException { if (mPrivateKeyState == PRIVATE_KEY_STATE_LOCKED) { throw new PrivateKeyNotUnlockedException(); } - if (nfcSignedHash != null && nfcCreationTimestamp == null) { - throw new PgpGeneralException("Got nfc hash without timestamp!!"); - } // We explicitly create a signature creation timestamp in this place. // That way, we can inject an artificial one from outside, ie the one // used in previous runs of this function. - if (nfcCreationTimestamp == null) { + if (creationTimestamp == null) { // to sign using nfc PgpSignEncrypt is executed two times. // the first time it stops to return the PendingIntent for nfc connection and signing the hash // the second time the signed hash is used. // to get the same hash we cache the timestamp for the second round! - nfcCreationTimestamp = new Date(); + creationTimestamp = new Date(); } - PGPContentSignerBuilder contentSignerBuilder = getContentSignerBuilder(hashAlgo, - nfcSignedHash, nfcCreationTimestamp); + PGPContentSignerBuilder contentSignerBuilder = getContentSignerBuilder(hashAlgo, signedHashes); int signatureType; if (cleartext) { @@ -237,7 +236,7 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator(); spGen.setSignerUserID(false, mRing.getPrimaryUserIdWithFallback()); - spGen.setSignatureCreationTime(false, nfcCreationTimestamp); + spGen.setSignatureCreationTime(false, creationTimestamp); signatureGenerator.setHashedSubpackets(spGen.generate()); return signatureGenerator; } catch (PgpKeyNotFoundException | PGPException e) { @@ -267,8 +266,9 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { * @param userIds User IDs to certify * @return A keyring with added certifications */ - public UncachedKeyRing certifyUserIds(CanonicalizedPublicKeyRing publicKeyRing, List<String> userIds, - byte[] nfcSignedHash, Date nfcCreationTimestamp) { + public UncachedKeyRing certifyUserIds(CanonicalizedPublicKeyRing publicKeyRing, + List<String> userIds, + HashMap<ByteBuffer,byte[]> signedHashes, Date creationTimestamp) { if (mPrivateKeyState == PRIVATE_KEY_STATE_LOCKED) { throw new PrivateKeyNotUnlockedException(); } @@ -283,7 +283,7 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { PGPSignatureGenerator signatureGenerator; { PGPContentSignerBuilder contentSignerBuilder = getContentSignerBuilder( - PgpConstants.CERTIFY_HASH_ALGO, nfcSignedHash, nfcCreationTimestamp); + PgpConstants.CERTIFY_HASH_ALGO, signedHashes); signatureGenerator = new PGPSignatureGenerator(contentSignerBuilder); try { @@ -296,9 +296,9 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { { // supply signatureGenerator with a SubpacketVector PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator(); - if (nfcCreationTimestamp != null) { - spGen.setSignatureCreationTime(false, nfcCreationTimestamp); - Log.d(Constants.TAG, "For NFC: set sig creation time to " + nfcCreationTimestamp); + if (creationTimestamp != null) { + spGen.setSignatureCreationTime(false, creationTimestamp); + Log.d(Constants.TAG, "For NFC: set sig creation time to " + creationTimestamp); } PGPSignatureSubpacketVector packetVector = spGen.generate(); signatureGenerator.setHashedSubpackets(packetVector); @@ -331,7 +331,8 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { * @return A keyring with added certifications */ public UncachedKeyRing certifyUserAttributes(CanonicalizedPublicKeyRing publicKeyRing, - List<WrappedUserAttribute> userAttributes, byte[] nfcSignedHash, Date nfcCreationTimestamp) { + List<WrappedUserAttribute> userAttributes, + HashMap<ByteBuffer,byte[]> signedHashes, Date creationTimestamp) { if (mPrivateKeyState == PRIVATE_KEY_STATE_LOCKED) { throw new PrivateKeyNotUnlockedException(); } @@ -346,7 +347,7 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { PGPSignatureGenerator signatureGenerator; { PGPContentSignerBuilder contentSignerBuilder = getContentSignerBuilder( - PgpConstants.CERTIFY_HASH_ALGO, nfcSignedHash, nfcCreationTimestamp); + PgpConstants.CERTIFY_HASH_ALGO, signedHashes); signatureGenerator = new PGPSignatureGenerator(contentSignerBuilder); try { @@ -359,9 +360,9 @@ public class CanonicalizedSecretKey extends CanonicalizedPublicKey { { // supply signatureGenerator with a SubpacketVector PGPSignatureSubpacketGenerator spGen = new PGPSignatureSubpacketGenerator(); - if (nfcCreationTimestamp != null) { - spGen.setSignatureCreationTime(false, nfcCreationTimestamp); - Log.d(Constants.TAG, "For NFC: set sig creation time to " + nfcCreationTimestamp); + if (creationTimestamp != null) { + spGen.setSignatureCreationTime(false, creationTimestamp); + Log.d(Constants.TAG, "For NFC: set sig creation time to " + creationTimestamp); } PGPSignatureSubpacketVector packetVector = spGen.generate(); signatureGenerator.setHashedSubpackets(packetVector); diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInput.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInputParcel.java index 2dec4b9c2..00ecc179e 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInput.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptInputParcel.java @@ -20,10 +20,17 @@ package org.sufficientlysecure.keychain.pgp; import org.spongycastle.bcpg.CompressionAlgorithmTags; import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; +import java.nio.ByteBuffer; import java.util.Date; +import java.util.Map; -public class PgpSignEncryptInput { +import android.os.Parcel; +import android.os.Parcelable; + + +public class PgpSignEncryptInputParcel implements Parcelable { protected String mVersionHeader = null; protected boolean mEnableAsciiArmorOutput = false; @@ -36,13 +43,71 @@ public class PgpSignEncryptInput { protected int mSignatureHashAlgorithm = PgpConstants.OpenKeychainHashAlgorithmTags.USE_PREFERRED; protected String mSignaturePassphrase = null; protected long mAdditionalEncryptId = Constants.key.none; - protected byte[] mNfcSignedHash = null; - protected Date mNfcCreationTimestamp = null; protected boolean mFailOnMissingEncryptionKeyIds = false; protected String mCharset; protected boolean mCleartextSignature; protected boolean mDetachedSignature = false; protected boolean mHiddenRecipients = false; + protected CryptoInputParcel mCryptoInput = new CryptoInputParcel(null); + + public PgpSignEncryptInputParcel() { + + } + + PgpSignEncryptInputParcel(Parcel source) { + + // we do all of those here, so the PgpSignEncryptInput class doesn't have to be parcelable + mVersionHeader = source.readString(); + mEnableAsciiArmorOutput = source.readInt() == 1; + mCompressionId = source.readInt(); + mEncryptionMasterKeyIds = source.createLongArray(); + mSymmetricPassphrase = source.readString(); + mSymmetricEncryptionAlgorithm = source.readInt(); + mSignatureMasterKeyId = source.readLong(); + mSignatureSubKeyId = source.readInt() == 1 ? source.readLong() : null; + mSignatureHashAlgorithm = source.readInt(); + mSignaturePassphrase = source.readString(); + mAdditionalEncryptId = source.readLong(); + mFailOnMissingEncryptionKeyIds = source.readInt() == 1; + mCharset = source.readString(); + mCleartextSignature = source.readInt() == 1; + mDetachedSignature = source.readInt() == 1; + mHiddenRecipients = source.readInt() == 1; + + mCryptoInput = source.readParcelable(PgpSignEncryptInputParcel.class.getClassLoader()); + } + + @Override + public int describeContents() { + return 0; + } + + @Override + public void writeToParcel(Parcel dest, int flags) { + dest.writeString(mVersionHeader); + dest.writeInt(mEnableAsciiArmorOutput ? 1 : 0); + dest.writeInt(mCompressionId); + dest.writeLongArray(mEncryptionMasterKeyIds); + dest.writeString(mSymmetricPassphrase); + dest.writeInt(mSymmetricEncryptionAlgorithm); + dest.writeLong(mSignatureMasterKeyId); + if (mSignatureSubKeyId != null) { + dest.writeInt(1); + dest.writeLong(mSignatureSubKeyId); + } else { + dest.writeInt(0); + } + dest.writeInt(mSignatureHashAlgorithm); + dest.writeString(mSignaturePassphrase); + dest.writeLong(mAdditionalEncryptId); + dest.writeInt(mFailOnMissingEncryptionKeyIds ? 1 : 0); + dest.writeString(mCharset); + dest.writeInt(mCleartextSignature ? 1 : 0); + dest.writeInt(mDetachedSignature ? 1 : 0); + dest.writeInt(mHiddenRecipients ? 1 : 0); + + dest.writeParcelable(mCryptoInput, 0); + } public String getCharset() { return mCharset; @@ -56,19 +121,11 @@ public class PgpSignEncryptInput { return mFailOnMissingEncryptionKeyIds; } - public Date getNfcCreationTimestamp() { - return mNfcCreationTimestamp; - } - - public byte[] getNfcSignedHash() { - return mNfcSignedHash; - } - public long getAdditionalEncryptId() { return mAdditionalEncryptId; } - public PgpSignEncryptInput setAdditionalEncryptId(long additionalEncryptId) { + public PgpSignEncryptInputParcel setAdditionalEncryptId(long additionalEncryptId) { mAdditionalEncryptId = additionalEncryptId; return this; } @@ -77,7 +134,7 @@ public class PgpSignEncryptInput { return mSignaturePassphrase; } - public PgpSignEncryptInput setSignaturePassphrase(String signaturePassphrase) { + public PgpSignEncryptInputParcel setSignaturePassphrase(String signaturePassphrase) { mSignaturePassphrase = signaturePassphrase; return this; } @@ -86,7 +143,7 @@ public class PgpSignEncryptInput { return mSignatureHashAlgorithm; } - public PgpSignEncryptInput setSignatureHashAlgorithm(int signatureHashAlgorithm) { + public PgpSignEncryptInputParcel setSignatureHashAlgorithm(int signatureHashAlgorithm) { mSignatureHashAlgorithm = signatureHashAlgorithm; return this; } @@ -95,7 +152,7 @@ public class PgpSignEncryptInput { return mSignatureSubKeyId; } - public PgpSignEncryptInput setSignatureSubKeyId(long signatureSubKeyId) { + public PgpSignEncryptInputParcel setSignatureSubKeyId(long signatureSubKeyId) { mSignatureSubKeyId = signatureSubKeyId; return this; } @@ -104,7 +161,7 @@ public class PgpSignEncryptInput { return mSignatureMasterKeyId; } - public PgpSignEncryptInput setSignatureMasterKeyId(long signatureMasterKeyId) { + public PgpSignEncryptInputParcel setSignatureMasterKeyId(long signatureMasterKeyId) { mSignatureMasterKeyId = signatureMasterKeyId; return this; } @@ -113,7 +170,7 @@ public class PgpSignEncryptInput { return mSymmetricEncryptionAlgorithm; } - public PgpSignEncryptInput setSymmetricEncryptionAlgorithm(int symmetricEncryptionAlgorithm) { + public PgpSignEncryptInputParcel setSymmetricEncryptionAlgorithm(int symmetricEncryptionAlgorithm) { mSymmetricEncryptionAlgorithm = symmetricEncryptionAlgorithm; return this; } @@ -122,7 +179,7 @@ public class PgpSignEncryptInput { return mSymmetricPassphrase; } - public PgpSignEncryptInput setSymmetricPassphrase(String symmetricPassphrase) { + public PgpSignEncryptInputParcel setSymmetricPassphrase(String symmetricPassphrase) { mSymmetricPassphrase = symmetricPassphrase; return this; } @@ -131,7 +188,7 @@ public class PgpSignEncryptInput { return mEncryptionMasterKeyIds; } - public PgpSignEncryptInput setEncryptionMasterKeyIds(long[] encryptionMasterKeyIds) { + public PgpSignEncryptInputParcel setEncryptionMasterKeyIds(long[] encryptionMasterKeyIds) { mEncryptionMasterKeyIds = encryptionMasterKeyIds; return this; } @@ -140,7 +197,7 @@ public class PgpSignEncryptInput { return mCompressionId; } - public PgpSignEncryptInput setCompressionId(int compressionId) { + public PgpSignEncryptInputParcel setCompressionId(int compressionId) { mCompressionId = compressionId; return this; } @@ -153,28 +210,22 @@ public class PgpSignEncryptInput { return mVersionHeader; } - public PgpSignEncryptInput setVersionHeader(String versionHeader) { + public PgpSignEncryptInputParcel setVersionHeader(String versionHeader) { mVersionHeader = versionHeader; return this; } - public PgpSignEncryptInput setEnableAsciiArmorOutput(boolean enableAsciiArmorOutput) { + public PgpSignEncryptInputParcel setEnableAsciiArmorOutput(boolean enableAsciiArmorOutput) { mEnableAsciiArmorOutput = enableAsciiArmorOutput; return this; } - public PgpSignEncryptInput setFailOnMissingEncryptionKeyIds(boolean failOnMissingEncryptionKeyIds) { + public PgpSignEncryptInputParcel setFailOnMissingEncryptionKeyIds(boolean failOnMissingEncryptionKeyIds) { mFailOnMissingEncryptionKeyIds = failOnMissingEncryptionKeyIds; return this; } - public PgpSignEncryptInput setNfcState(byte[] signedHash, Date creationTimestamp) { - mNfcSignedHash = signedHash; - mNfcCreationTimestamp = creationTimestamp; - return this; - } - - public PgpSignEncryptInput setCleartextSignature(boolean cleartextSignature) { + public PgpSignEncryptInputParcel setCleartextSignature(boolean cleartextSignature) { this.mCleartextSignature = cleartextSignature; return this; } @@ -183,7 +234,7 @@ public class PgpSignEncryptInput { return mCleartextSignature; } - public PgpSignEncryptInput setDetachedSignature(boolean detachedSignature) { + public PgpSignEncryptInputParcel setDetachedSignature(boolean detachedSignature) { this.mDetachedSignature = detachedSignature; return this; } @@ -192,7 +243,7 @@ public class PgpSignEncryptInput { return mDetachedSignature; } - public PgpSignEncryptInput setHiddenRecipients(boolean hiddenRecipients) { + public PgpSignEncryptInputParcel setHiddenRecipients(boolean hiddenRecipients) { this.mHiddenRecipients = hiddenRecipients; return this; } @@ -200,5 +251,29 @@ public class PgpSignEncryptInput { public boolean isHiddenRecipients() { return mHiddenRecipients; } + + public PgpSignEncryptInputParcel setCryptoInput(CryptoInputParcel cryptoInput) { + mCryptoInput = cryptoInput; + return this; + } + + public Map<ByteBuffer, byte[]> getCryptoData() { + return mCryptoInput.getCryptoData(); + } + + public Date getSignatureTime() { + return mCryptoInput.getSignatureTime(); + } + + public static final Creator<PgpSignEncryptInputParcel> CREATOR = new Creator<PgpSignEncryptInputParcel>() { + public PgpSignEncryptInputParcel createFromParcel(final Parcel source) { + return new PgpSignEncryptInputParcel(source); + } + + public PgpSignEncryptInputParcel[] newArray(final int size) { + return new PgpSignEncryptInputParcel[size]; + } + }; + } 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 94e04060d..2e515137a 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptOperation.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpSignEncryptOperation.java @@ -44,6 +44,8 @@ import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException; import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException; import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; import org.sufficientlysecure.keychain.provider.ProviderHelper; +import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; +import org.sufficientlysecure.keychain.service.input.NfcOperationsParcel; import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils; import org.sufficientlysecure.keychain.util.InputData; import org.sufficientlysecure.keychain.util.Log; @@ -71,7 +73,7 @@ import java.util.concurrent.atomic.AtomicBoolean; * * For a high-level operation based on URIs, see SignEncryptOperation. * - * @see org.sufficientlysecure.keychain.pgp.PgpSignEncryptInput + * @see PgpSignEncryptInputParcel * @see org.sufficientlysecure.keychain.operations.results.PgpSignEncryptResult * @see org.sufficientlysecure.keychain.operations.SignEncryptOperation * @@ -99,7 +101,7 @@ public class PgpSignEncryptOperation extends BaseOperation { /** * Signs and/or encrypts data based on parameters of class */ - public PgpSignEncryptResult execute(PgpSignEncryptInput input, + public PgpSignEncryptResult execute(PgpSignEncryptInputParcel input, InputData inputData, OutputStream outputStream) { int indent = 0; @@ -282,7 +284,8 @@ public class PgpSignEncryptOperation extends BaseOperation { try { boolean cleartext = input.isCleartextSignature() && input.isEnableAsciiArmorOutput() && !enableEncryption; signatureGenerator = signingKey.getSignatureGenerator( - input.getSignatureHashAlgorithm(), cleartext, input.getNfcSignedHash(), input.getNfcCreationTimestamp()); + input.getSignatureHashAlgorithm(), cleartext, + input.getCryptoData(), input.getSignatureTime()); } catch (PgpGeneralException e) { log.add(LogType.MSG_PSE_ERROR_NFC, indent); return new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_ERROR, log); @@ -489,7 +492,8 @@ public class PgpSignEncryptOperation extends BaseOperation { new PgpSignEncryptResult(PgpSignEncryptResult.RESULT_PENDING_NFC, log); // Note that the checked key here is the master key, not the signing key // (although these are always the same on Yubikeys) - result.setNfcData(input.getSignatureSubKeyId(), e.hashToSign, e.hashAlgo, e.creationTimestamp, input.getSignaturePassphrase()); + result.setNfcData(signingKey.getKeyId(), e.hashToSign, e.hashAlgo, + input.getSignaturePassphrase()); Log.d(Constants.TAG, "e.hashToSign" + Hex.toHexString(e.hashToSign)); return result; } diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/SignEncryptParcel.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/SignEncryptParcel.java index 8e71e8815..1b14e78fb 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/SignEncryptParcel.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/SignEncryptParcel.java @@ -20,7 +20,6 @@ package org.sufficientlysecure.keychain.pgp; import android.net.Uri; import android.os.Parcel; -import android.os.Parcelable; import java.util.ArrayList; import java.util.Collection; @@ -40,7 +39,7 @@ import java.util.List; * left, which will be returned in a byte array as part of the result parcel. * */ -public class SignEncryptParcel extends PgpSignEncryptInput implements Parcelable { +public class SignEncryptParcel extends PgpSignEncryptInputParcel { public ArrayList<Uri> mInputUris = new ArrayList<>(); public ArrayList<Uri> mOutputUris = new ArrayList<>(); @@ -51,26 +50,7 @@ public class SignEncryptParcel extends PgpSignEncryptInput implements Parcelable } public SignEncryptParcel(Parcel src) { - - // we do all of those here, so the PgpSignEncryptInput class doesn't have to be parcelable - mVersionHeader = src.readString(); - mEnableAsciiArmorOutput = src.readInt() == 1; - mCompressionId = src.readInt(); - mEncryptionMasterKeyIds = src.createLongArray(); - mSymmetricPassphrase = src.readString(); - mSymmetricEncryptionAlgorithm = src.readInt(); - mSignatureMasterKeyId = src.readLong(); - mSignatureSubKeyId = src.readInt() == 1 ? src.readLong() : null; - mSignatureHashAlgorithm = src.readInt(); - mSignaturePassphrase = src.readString(); - mAdditionalEncryptId = src.readLong(); - mNfcSignedHash = src.createByteArray(); - mNfcCreationTimestamp = src.readInt() == 1 ? new Date(src.readLong()) : null; - mFailOnMissingEncryptionKeyIds = src.readInt() == 1; - mCharset = src.readString(); - mCleartextSignature = src.readInt() == 1; - mDetachedSignature = src.readInt() == 1; - mHiddenRecipients = src.readInt() == 1; + super(src); mInputUris = src.createTypedArrayList(Uri.CREATOR); mOutputUris = src.createTypedArrayList(Uri.CREATOR); @@ -108,34 +88,7 @@ public class SignEncryptParcel extends PgpSignEncryptInput implements Parcelable } public void writeToParcel(Parcel dest, int flags) { - dest.writeString(mVersionHeader); - dest.writeInt(mEnableAsciiArmorOutput ? 1 : 0); - dest.writeInt(mCompressionId); - dest.writeLongArray(mEncryptionMasterKeyIds); - dest.writeString(mSymmetricPassphrase); - dest.writeInt(mSymmetricEncryptionAlgorithm); - dest.writeLong(mSignatureMasterKeyId); - if (mSignatureSubKeyId != null) { - dest.writeInt(1); - dest.writeLong(mSignatureSubKeyId); - } else { - dest.writeInt(0); - } - dest.writeInt(mSignatureHashAlgorithm); - dest.writeString(mSignaturePassphrase); - dest.writeLong(mAdditionalEncryptId); - dest.writeByteArray(mNfcSignedHash); - if (mNfcCreationTimestamp != null) { - dest.writeInt(1); - dest.writeLong(mNfcCreationTimestamp.getTime()); - } else { - dest.writeInt(0); - } - dest.writeInt(mFailOnMissingEncryptionKeyIds ? 1 : 0); - dest.writeString(mCharset); - dest.writeInt(mCleartextSignature ? 1 : 0); - dest.writeInt(mDetachedSignature ? 1 : 0); - dest.writeInt(mHiddenRecipients ? 1 : 0); + super.writeToParcel(dest, flags); dest.writeTypedList(mInputUris); dest.writeTypedList(mOutputUris); 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 a4bc95602..f15bf7925 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/remote/OpenPgpService.java @@ -38,7 +38,7 @@ import org.sufficientlysecure.keychain.operations.results.OperationResult.LogEnt import org.sufficientlysecure.keychain.operations.results.PgpSignEncryptResult; import org.sufficientlysecure.keychain.pgp.PgpConstants; import org.sufficientlysecure.keychain.pgp.PgpDecryptVerify; -import org.sufficientlysecure.keychain.pgp.PgpSignEncryptInput; +import org.sufficientlysecure.keychain.pgp.PgpSignEncryptInputParcel; import org.sufficientlysecure.keychain.pgp.PgpSignEncryptOperation; import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException; import org.sufficientlysecure.keychain.provider.KeychainContract; @@ -48,6 +48,7 @@ import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables; import org.sufficientlysecure.keychain.provider.ProviderHelper; import org.sufficientlysecure.keychain.remote.ui.RemoteServiceActivity; import org.sufficientlysecure.keychain.remote.ui.SelectSignKeyIdActivity; +import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; import org.sufficientlysecure.keychain.ui.ImportKeysActivity; import org.sufficientlysecure.keychain.ui.NfcActivity; import org.sufficientlysecure.keychain.ui.PassphraseDialogActivity; @@ -258,11 +259,13 @@ public class OpenPgpService extends RemoteService { } // carefully: only set if timestamp exists - Date nfcCreationDate = null; + Date nfcCreationDate; long nfcCreationTimestamp = data.getLongExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, -1); Log.d(Constants.TAG, "nfcCreationTimestamp: " + nfcCreationTimestamp); if (nfcCreationTimestamp != -1) { nfcCreationDate = new Date(nfcCreationTimestamp); + } else { + nfcCreationDate = new Date(); } // Get Input- and OutputStream from ParcelFileDescriptor @@ -275,15 +278,18 @@ public class OpenPgpService extends RemoteService { long inputLength = is.available(); InputData inputData = new InputData(is, inputLength); + CryptoInputParcel cryptoInput = new CryptoInputParcel(nfcCreationDate); + cryptoInput.addCryptoData(null, nfcSignedHash); // TODO fix + // sign-only - PgpSignEncryptInput pseInput = new PgpSignEncryptInput() + PgpSignEncryptInputParcel pseInput = new PgpSignEncryptInputParcel() .setEnableAsciiArmorOutput(asciiArmor) .setCleartextSignature(cleartextSign) .setDetachedSignature(!cleartextSign) .setVersionHeader(null) .setSignatureHashAlgorithm(PgpConstants.OpenKeychainHashAlgorithmTags.USE_PREFERRED) .setSignatureMasterKeyId(signKeyId) - .setNfcState(nfcSignedHash, nfcCreationDate); + .setCryptoInput(cryptoInput); // execute PGP operation! PgpSignEncryptOperation pse = new PgpSignEncryptOperation(this, new ProviderHelper(getContext()), null); @@ -298,7 +304,7 @@ public class OpenPgpService extends RemoteService { // return PendingIntent to execute NFC activity // pass through the signature creation timestamp to be used again on second execution // of PgpSignEncrypt when we have the signed hash! - data.putExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, pgpResult.getNfcTimestamp().getTime()); + data.putExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, nfcCreationDate.getTime()); // return PendingIntent to be executed by client Intent result = new Intent(); @@ -389,7 +395,7 @@ public class OpenPgpService extends RemoteService { long inputLength = is.available(); InputData inputData = new InputData(is, inputLength, originalFilename); - PgpSignEncryptInput pseInput = new PgpSignEncryptInput(); + PgpSignEncryptInputParcel pseInput = new PgpSignEncryptInputParcel(); pseInput.setEnableAsciiArmorOutput(asciiArmor) .setVersionHeader(null) .setCompressionId(compressionId) @@ -412,16 +418,21 @@ public class OpenPgpService extends RemoteService { byte[] nfcSignedHash = data.getByteArrayExtra(OpenPgpApi.EXTRA_NFC_SIGNED_HASH); // carefully: only set if timestamp exists - Date nfcCreationDate = null; + Date nfcCreationDate; long nfcCreationTimestamp = data.getLongExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, -1); if (nfcCreationTimestamp != -1) { nfcCreationDate = new Date(nfcCreationTimestamp); + } else { + nfcCreationDate = new Date(); } + CryptoInputParcel cryptoInput = new CryptoInputParcel(nfcCreationDate); + cryptoInput.addCryptoData(null, nfcSignedHash); // TODO fix! + // sign and encrypt pseInput.setSignatureHashAlgorithm(PgpConstants.OpenKeychainHashAlgorithmTags.USE_PREFERRED) .setSignatureMasterKeyId(signKeyId) - .setNfcState(nfcSignedHash, nfcCreationDate) + .setCryptoInput(cryptoInput) .setAdditionalEncryptId(signKeyId); // add sign key for encryption } @@ -439,7 +450,7 @@ public class OpenPgpService extends RemoteService { // return PendingIntent to execute NFC activity // pass through the signature creation timestamp to be used again on second execution // of PgpSignEncrypt when we have the signed hash! - data.putExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, pgpResult.getNfcTimestamp().getTime()); + data.putExtra(OpenPgpApi.EXTRA_NFC_SIG_CREATION_TIMESTAMP, 0L); // TODO fix // return PendingIntent to be executed by client Intent result = new Intent(); result.putExtra(OpenPgpApi.RESULT_INTENT, diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/CertifyActionsParcel.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/CertifyActionsParcel.java index d6da18e6e..485d5de72 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/CertifyActionsParcel.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/CertifyActionsParcel.java @@ -26,31 +26,31 @@ import java.util.ArrayList; import java.util.Date; import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute; -import org.sufficientlysecure.keychain.service.input.CryptoOperationParcel; +import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; /** * This class is a a transferable representation for a number of keyrings to * be certified. */ -public class CertifyActionsParcel extends CryptoOperationParcel { +public class CertifyActionsParcel implements Parcelable { // the master key id to certify with final public long mMasterKeyId; public CertifyLevel mLevel; public ArrayList<CertifyAction> mCertifyActions = new ArrayList<>(); + public CryptoInputParcel mCryptoInput; public CertifyActionsParcel(Date operationTime, long masterKeyId) { - super(operationTime); mMasterKeyId = masterKeyId; + mCryptoInput = new CryptoInputParcel(operationTime); mLevel = CertifyLevel.DEFAULT; } public CertifyActionsParcel(Parcel source) { - super(source); - mMasterKeyId = source.readLong(); + mCryptoInput = source.readParcelable(CertifyActionsParcel.class.getClassLoader()); // just like parcelables, this is meant for ad-hoc IPC only and is NOT portable! mLevel = CertifyLevel.values()[source.readInt()]; @@ -63,9 +63,8 @@ public class CertifyActionsParcel extends CryptoOperationParcel { @Override public void writeToParcel(Parcel destination, int flags) { - super.writeToParcel(destination, flags); - destination.writeLong(mMasterKeyId); + destination.writeParcelable(mCryptoInput, 0); destination.writeInt(mLevel.ordinal()); destination.writeSerializable(mCertifyActions); diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoInputParcel.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoInputParcel.java new file mode 100644 index 000000000..e02eda4b3 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoInputParcel.java @@ -0,0 +1,81 @@ +package org.sufficientlysecure.keychain.service.input; + +import java.nio.ByteBuffer; +import java.util.Collections; +import java.util.Date; +import java.util.HashMap; +import java.util.Map; + +import android.os.Parcel; +import android.os.Parcelable; + + +/** This is a base class for the input of crypto operations. + * + */ +public class CryptoInputParcel implements Parcelable { + + Date mSignatureTime; + + // this map contains both decrypted session keys and signed hashes to be + // used in the crypto operation described by this parcel. + private HashMap<ByteBuffer,byte[]> mCryptoData = new HashMap<>(); + + public CryptoInputParcel(Date signatureTime) { + mSignatureTime = signatureTime == null ? new Date() : signatureTime; + } + + protected CryptoInputParcel(Parcel source) { + mSignatureTime = new Date(source.readLong()); + + { + int count = source.readInt(); + mCryptoData = new HashMap<>(count); + for (int i = 0; i < count; i++) { + byte[] key = source.createByteArray(); + byte[] value = source.createByteArray(); + mCryptoData.put(ByteBuffer.wrap(key), value); + } + } + + } + + @Override + public int describeContents() { + return 0; + } + + @Override + public void writeToParcel(Parcel dest, int flags) { + dest.writeLong(mSignatureTime.getTime()); + + dest.writeInt(mCryptoData.size()); + for (HashMap.Entry<ByteBuffer,byte[]> entry : mCryptoData.entrySet()) { + dest.writeByteArray(entry.getKey().array()); + dest.writeByteArray(entry.getValue()); + } + } + + public void addCryptoData(byte[] hash, byte[] signedHash) { + mCryptoData.put(ByteBuffer.wrap(hash), signedHash); + } + + public Map<ByteBuffer, byte[]> getCryptoData() { + return Collections.unmodifiableMap(mCryptoData); + } + + public Date getSignatureTime() { + return mSignatureTime; + } + + public static final Creator<CryptoInputParcel> CREATOR = new Creator<CryptoInputParcel>() { + public CryptoInputParcel createFromParcel(final Parcel source) { + return new CryptoInputParcel(source); + } + + public CryptoInputParcel[] newArray(final int size) { + return new CryptoInputParcel[size]; + } + }; + +} diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoOperationParcel.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoOperationParcel.java deleted file mode 100644 index 2101755ad..000000000 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/CryptoOperationParcel.java +++ /dev/null @@ -1,52 +0,0 @@ -package org.sufficientlysecure.keychain.service.input; - -import java.nio.ByteBuffer; -import java.util.Date; -import java.util.HashMap; - -import android.os.Parcel; -import android.os.Parcelable; - - -/** This is a base class for the input of crypto operations. - * - */ -public abstract class CryptoOperationParcel implements Parcelable { - - Date mOperationTime; - - // this map contains both decrypted session keys and signed hashes to be - // used in the crypto operation described by this parcel. - HashMap<ByteBuffer,byte[]> mCryptoData; - - protected CryptoOperationParcel(Date operationTime) { - mOperationTime = operationTime; - } - - protected CryptoOperationParcel(Parcel source) { - mOperationTime = new Date(source.readLong()); - - { - int count = source.readInt(); - mCryptoData = new HashMap<>(count); - for (int i = 0; i < count; i++) { - byte[] key = source.createByteArray(); - byte[] value = source.createByteArray(); - mCryptoData.put(ByteBuffer.wrap(key), value); - } - } - - } - - @Override - public void writeToParcel(Parcel dest, int flags) { - dest.writeLong(mOperationTime.getTime()); - - dest.writeInt(mCryptoData.size()); - for (HashMap.Entry<ByteBuffer,byte[]> entry : mCryptoData.entrySet()) { - dest.writeByteArray(entry.getKey().array()); - dest.writeByteArray(entry.getValue()); - } - } - -} diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/NfcOperationsParcel.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/NfcOperationsParcel.java new file mode 100644 index 000000000..5d35e94e0 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/input/NfcOperationsParcel.java @@ -0,0 +1,85 @@ +package org.sufficientlysecure.keychain.service.input; + +import java.util.Date; + +import android.os.Parcel; +import android.os.Parcelable; + + +public class NfcOperationsParcel implements Parcelable { + + public enum NfcOperationType { + NFC_SIGN, NFC_DECRYPT + } + + public Date mSignatureTime; + public final NfcOperationType mType; + public final byte[][] mInputHash; + public final int[] mSignAlgo; + + private NfcOperationsParcel(NfcOperationType type, byte[] inputHash, int signAlgo, Date signatureTime) { + mType = type; + mInputHash = new byte[][] { inputHash }; + mSignAlgo = new int[] { signAlgo }; + mSignatureTime = signatureTime; + } + + public NfcOperationsParcel(Parcel source) { + mType = NfcOperationType.values()[source.readInt()]; + + { + int count = source.readInt(); + mInputHash = new byte[count][]; + mSignAlgo = new int[count]; + for (int i = 0; i < count; i++) { + mInputHash[i] = source.createByteArray(); + mSignAlgo[i] = source.readInt(); + } + } + + mSignatureTime = source.readInt() != 0 ? new Date(source.readLong()) : null; + + } + + public static NfcOperationsParcel createNfcSignOperation( + byte[] inputHash, int signAlgo, Date signatureTime) { + return new NfcOperationsParcel(NfcOperationType.NFC_SIGN, inputHash, signAlgo, signatureTime); + } + + public static NfcOperationsParcel createNfcDecryptOperation(byte[] inputHash) { + return new NfcOperationsParcel(NfcOperationType.NFC_DECRYPT, inputHash, 0, null); + } + + @Override + public int describeContents() { + return 0; + } + + @Override + public void writeToParcel(Parcel dest, int flags) { + dest.writeInt(mType.ordinal()); + dest.writeInt(mInputHash.length); + for (int i = 0; i < mInputHash.length; i++) { + dest.writeByteArray(mInputHash[i]); + dest.writeInt(mSignAlgo[i]); + } + if (mSignatureTime != null) { + dest.writeInt(1); + dest.writeLong(mSignatureTime.getTime()); + } else { + dest.writeInt(0); + } + + } + + public static final Creator<NfcOperationsParcel> CREATOR = new Creator<NfcOperationsParcel>() { + public NfcOperationsParcel createFromParcel(final Parcel source) { + return new NfcOperationsParcel(source); + } + + public NfcOperationsParcel[] newArray(final int size) { + return new NfcOperationsParcel[size]; + } + }; + +} diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java index 35dfcb87c..75f22f01c 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptActivity.java @@ -25,15 +25,15 @@ import android.os.Message; import android.os.Messenger; import android.view.View; -import org.openintents.openpgp.util.OpenPgpApi; import org.sufficientlysecure.keychain.R; import org.sufficientlysecure.keychain.operations.results.PgpSignEncryptResult; import org.sufficientlysecure.keychain.operations.results.SignEncryptResult; import org.sufficientlysecure.keychain.pgp.SignEncryptParcel; import org.sufficientlysecure.keychain.service.KeychainIntentService; import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler; +import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; +import org.sufficientlysecure.keychain.service.input.NfcOperationsParcel; -import java.util.Date; public abstract class EncryptActivity extends BaseActivity { @@ -42,8 +42,6 @@ public abstract class EncryptActivity extends BaseActivity { // For NFC data protected String mSigningKeyPassphrase = null; - protected Date mNfcTimestamp = null; - protected byte[] mNfcHash = null; @Override public void onCreate(Bundle savedInstanceState) { @@ -64,17 +62,12 @@ public abstract class EncryptActivity extends BaseActivity { startActivityForResult(intent, REQUEST_CODE_PASSPHRASE); } - protected void startNfcSign(long keyId, String pin, byte[] hashToSign, int hashAlgo) { - // build PendingIntent for Yubikey NFC operations - Intent intent = new Intent(this, NfcActivity.class); - intent.setAction(NfcActivity.ACTION_SIGN_HASH); + protected void startNfcSign(long keyId, String pin, NfcOperationsParcel nfcOps) { - // pass params through to activity that it can be returned again later to repeat pgp operation - intent.putExtra(NfcActivity.EXTRA_DATA, new Intent()); // not used, only relevant to OpenPgpService - intent.putExtra(NfcActivity.EXTRA_KEY_ID, keyId); - intent.putExtra(NfcActivity.EXTRA_PIN, pin); - intent.putExtra(NfcActivity.EXTRA_NFC_HASH_TO_SIGN, hashToSign); - intent.putExtra(NfcActivity.EXTRA_NFC_HASH_ALGO, hashAlgo); + Intent intent = new Intent(this, NfcOperationActivity.class); + intent.putExtra(NfcOperationActivity.EXTRA_PIN, pin); + intent.putExtra(NfcOperationActivity.EXTRA_NFC_OPS, nfcOps); + // TODO respect keyid(?) startActivityForResult(intent, REQUEST_CODE_NFC); } @@ -93,8 +86,9 @@ public abstract class EncryptActivity extends BaseActivity { case REQUEST_CODE_NFC: { if (resultCode == RESULT_OK && data != null) { - mNfcHash = data.getByteArrayExtra(OpenPgpApi.EXTRA_NFC_SIGNED_HASH); - startEncrypt(); + CryptoInputParcel cryptoInput = + data.getParcelableExtra(NfcOperationActivity.RESULT_DATA); + startEncrypt(cryptoInput); return; } break; @@ -108,6 +102,10 @@ public abstract class EncryptActivity extends BaseActivity { } public void startEncrypt() { + startEncrypt(null); + } + + public void startEncrypt(CryptoInputParcel cryptoInput) { if (!inputIsValid()) { // Notify was created by inputIsValid. return; @@ -117,8 +115,13 @@ public abstract class EncryptActivity extends BaseActivity { Intent intent = new Intent(this, KeychainIntentService.class); intent.setAction(KeychainIntentService.ACTION_SIGN_ENCRYPT); + final SignEncryptParcel input = createEncryptBundle(); + if (cryptoInput != null) { + input.setCryptoInput(cryptoInput); + } + Bundle data = new Bundle(); - data.putParcelable(KeychainIntentService.SIGN_ENCRYPT_PARCEL, createEncryptBundle()); + data.putParcelable(KeychainIntentService.SIGN_ENCRYPT_PARCEL, input); intent.putExtra(KeychainIntentService.EXTRA_DATA, data); // Message is received after encrypting is done in KeychainIntentService @@ -141,9 +144,13 @@ public abstract class EncryptActivity extends BaseActivity { } else if ((pgpResult.getResult() & PgpSignEncryptResult.RESULT_PENDING_NFC) == PgpSignEncryptResult.RESULT_PENDING_NFC) { - mNfcTimestamp = pgpResult.getNfcTimestamp(); - startNfcSign(pgpResult.getNfcKeyId(), pgpResult.getNfcPassphrase(), - pgpResult.getNfcHash(), pgpResult.getNfcAlgo()); + NfcOperationsParcel parcel = NfcOperationsParcel.createNfcSignOperation( + pgpResult.getNfcHash(), + pgpResult.getNfcAlgo(), + input.getSignatureTime()); + startNfcSign(pgpResult.getNfcKeyId(), + pgpResult.getNfcPassphrase(), parcel); + } else { throw new RuntimeException("Unhandled pending result!"); } @@ -158,8 +165,6 @@ public abstract class EncryptActivity extends BaseActivity { // no matter the result, reset parameters mSigningKeyPassphrase = null; - mNfcHash = null; - mNfcTimestamp = null; } } }; diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesActivity.java index f1784fab3..49a0f5016 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesActivity.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesActivity.java @@ -252,7 +252,6 @@ public class EncryptFilesActivity extends EncryptActivity implements EncryptActi data.setEncryptionMasterKeyIds(mEncryptionKeyIds); data.setSignatureMasterKeyId(mSigningKeyId); data.setSignaturePassphrase(mSigningKeyPassphrase); - data.setNfcState(mNfcHash, mNfcTimestamp); } return data; } diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextActivity.java index 14f2c492d..894c1202d 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextActivity.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptTextActivity.java @@ -232,7 +232,6 @@ public class EncryptTextActivity extends EncryptActivity implements EncryptActiv data.setEncryptionMasterKeyIds(mEncryptionKeyIds); data.setSignatureMasterKeyId(mSigningKeyId); data.setSignaturePassphrase(mSigningKeyPassphrase); - data.setNfcState(mNfcHash, mNfcTimestamp); } return data; } diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/NfcOperationActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/NfcOperationActivity.java new file mode 100644 index 000000000..c1403d748 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/NfcOperationActivity.java @@ -0,0 +1,492 @@ +/** + * Copyright (c) 2013-2014 Philipp Jakubeit, Signe Rüsch, Dominik Schürmann + * + * Licensed under the Bouncy Castle License (MIT license). See LICENSE file for details. + */ + +package org.sufficientlysecure.keychain.ui; + +import android.annotation.TargetApi; +import android.app.PendingIntent; +import android.content.Intent; +import android.content.IntentFilter; +import android.nfc.NfcAdapter; +import android.nfc.Tag; +import android.nfc.tech.IsoDep; +import android.os.Build; +import android.os.Bundle; +import android.view.WindowManager; +import android.widget.Toast; + +import org.spongycastle.bcpg.HashAlgorithmTags; +import org.spongycastle.util.encoders.Hex; +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.service.input.CryptoInputParcel; +import org.sufficientlysecure.keychain.service.input.NfcOperationsParcel; +import org.sufficientlysecure.keychain.util.Iso7816TLV; +import org.sufficientlysecure.keychain.util.Log; + +import java.io.IOException; +import java.nio.ByteBuffer; + + +/** + * This class provides a communication interface to OpenPGP applications on ISO SmartCard compliant + * NFC devices. + * + * For the full specs, see http://g10code.com/docs/openpgp-card-2.0.pdf + */ +@TargetApi(Build.VERSION_CODES.GINGERBREAD_MR1) +public class NfcOperationActivity extends BaseActivity { + + public static final String EXTRA_PIN = "pin"; + public static final String EXTRA_NFC_OPS = "nfc_operations"; + + public static final String RESULT_DATA = "result_data"; + + private static final int TIMEOUT = 100000; + + private NfcAdapter mNfcAdapter; + private IsoDep mIsoDep; + + private String mPin; + + NfcOperationsParcel mNfcOperations; + + @Override + protected void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + Log.d(Constants.TAG, "NfcOperationActivity.onCreate"); + + getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); + + Intent intent = getIntent(); + String action = intent.getAction(); + if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(action)) { + throw new AssertionError("should not happen: NfcOperationActivity.onCreate is called instead of onNewIntent!"); + } + + Bundle data = intent.getExtras(); + + mNfcOperations = data.getParcelable(EXTRA_NFC_OPS); + mPin = data.getString(EXTRA_PIN); + + } + + @Override + protected void initLayout() { + setContentView(R.layout.nfc_activity); + } + + /** + * Called when the system is about to start resuming a previous activity, + * disables NFC Foreground Dispatch + */ + public void onPause() { + super.onPause(); + Log.d(Constants.TAG, "NfcOperationActivity.onPause"); + + disableNfcForegroundDispatch(); + } + + /** + * Called when the activity will start interacting with the user, + * enables NFC Foreground Dispatch + */ + public void onResume() { + super.onResume(); + Log.d(Constants.TAG, "NfcOperationActivity.onResume"); + + enableNfcForegroundDispatch(); + } + + /** + * This activity is started as a singleTop activity. + * All new NFC Intents which are delivered to this activity are handled here + */ + public void onNewIntent(Intent intent) { + if (NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())) { + try { + handleNdefDiscoveredIntent(intent); + } catch (IOException e) { + Log.e(Constants.TAG, "Connection error!", e); + toast("Connection Error: " + e.getMessage()); + setResult(RESULT_CANCELED); + finish(); + } + } + } + + /** Handle NFC communication and return a result. + * + * This method is called by onNewIntent above upon discovery of an NFC tag. + * It handles initialization and login to the application, subsequently + * calls either nfcCalculateSignature() or nfcDecryptSessionKey(), then + * finishes the activity with an appropiate result. + * + * On general communication, see also + * http://www.cardwerk.com/smartcards/smartcard_standard_ISO7816-4_annex-a.aspx + * + * References to pages are generally related to the OpenPGP Application + * on ISO SmartCard Systems specification. + * + */ + private void handleNdefDiscoveredIntent(Intent intent) throws IOException { + + Tag detectedTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG); + + // Connect to the detected tag, setting a couple of settings + mIsoDep = IsoDep.get(detectedTag); + mIsoDep.setTimeout(TIMEOUT); // timeout is set to 100 seconds to avoid cancellation during calculation + mIsoDep.connect(); + + // SW1/2 0x9000 is the generic "ok" response, which we expect most of the time. + // See specification, page 51 + String accepted = "9000"; + + // Command APDU (page 51) for SELECT FILE command (page 29) + String opening = + "00" // CLA + + "A4" // INS + + "04" // P1 + + "00" // P2 + + "06" // Lc (number of bytes) + + "D27600012401" // Data (6 bytes) + + "00"; // Le + if ( ! card(opening).equals(accepted)) { // activate connection + toast("Opening Error!"); + setResult(RESULT_CANCELED); + finish(); + return; + } + + // Command APDU for VERIFY command (page 32) + String login = + "00" // CLA + + "20" // INS + + "00" // P1 + + "82" // P2 (PW1) + + String.format("%02x", mPin.length()) // Lc + + Hex.toHexString(mPin.getBytes()); + if ( ! card(login).equals(accepted)) { // login + toast("Wrong PIN!"); + setResult(RESULT_CANCELED); + finish(); + return; + } + + CryptoInputParcel resultData = new CryptoInputParcel(mNfcOperations.mSignatureTime); + + switch (mNfcOperations.mType) { + + case NFC_DECRYPT: + + for (int i = 0; i < mNfcOperations.mInputHash.length; i++) { + byte[] hash = mNfcOperations.mInputHash[i]; + byte[] decryptedSessionKey = nfcDecryptSessionKey(hash); + resultData.addCryptoData(hash, decryptedSessionKey); + } + break; + + case NFC_SIGN: + for (int i = 0; i < mNfcOperations.mInputHash.length; i++) { + byte[] hash = mNfcOperations.mInputHash[i]; + int algo = mNfcOperations.mSignAlgo[i]; + byte[] signedHash = nfcCalculateSignature(hash, algo); + resultData.addCryptoData(hash, signedHash); + } + break; + } + + // give data through for new service call + Intent result = new Intent(); + result.putExtra(RESULT_DATA, resultData); + setResult(RESULT_OK, result); + finish(); + + } + + /** + * Gets the user ID + * + * @return the user id as "name <email>" + * @throws java.io.IOException + */ + public String getUserId() throws IOException { + String info = "00CA006500"; + String data = "00CA005E00"; + return getName(card(info)) + " <" + (new String(Hex.decode(getDataField(card(data))))) + ">"; + } + + /** Return the key id from application specific data stored on tag, or null + * if it doesn't exist. + * + * @param idx Index of the key to return the fingerprint from. + * @return The long key id of the requested key, or null if not found. + */ + public static Long nfcGetKeyId(IsoDep isoDep, int idx) throws IOException { + byte[] fp = nfcGetFingerprint(isoDep, idx); + if (fp == null) { + return null; + } + ByteBuffer buf = ByteBuffer.wrap(fp); + // skip first 12 bytes of the fingerprint + buf.position(12); + // the last eight bytes are the key id (big endian, which is default order in ByteBuffer) + return buf.getLong(); + } + + /** Return fingerprints of all keys from application specific data stored + * on tag, or null if data not available. + * + * @return The fingerprints of all subkeys in a contiguous byte array. + */ + public static byte[] nfcGetFingerprints(IsoDep isoDep) throws IOException { + String data = "00CA006E00"; + byte[] buf = isoDep.transceive(Hex.decode(data)); + + Iso7816TLV tlv = Iso7816TLV.readSingle(buf, true); + Log.d(Constants.TAG, "nfc tlv data:\n" + tlv.prettyPrint()); + + Iso7816TLV fptlv = Iso7816TLV.findRecursive(tlv, 0xc5); + if (fptlv == null) { + return null; + } + + return fptlv.mV; + } + + /** Return the fingerprint from application specific data stored on tag, or + * null if it doesn't exist. + * + * @param idx Index of the key to return the fingerprint from. + * @return The fingerprint of the requested key, or null if not found. + */ + public static byte[] nfcGetFingerprint(IsoDep isoDep, int idx) throws IOException { + byte[] data = nfcGetFingerprints(isoDep); + + // return the master key fingerprint + ByteBuffer fpbuf = ByteBuffer.wrap(data); + byte[] fp = new byte[20]; + fpbuf.position(idx*20); + fpbuf.get(fp, 0, 20); + + return fp; + } + + /** + * Calls to calculate the signature and returns the MPI value + * + * @param hash the hash for signing + * @return a big integer representing the MPI for the given hash + * @throws java.io.IOException + */ + public byte[] nfcCalculateSignature(byte[] hash, int hashAlgo) throws IOException { + + // dsi, including Lc + String dsi; + + Log.i(Constants.TAG, "Hash: " + hashAlgo); + switch (hashAlgo) { + case HashAlgorithmTags.SHA1: + if (hash.length != 20) { + throw new RuntimeException("Bad hash length (" + hash.length + ", expected 10!"); + } + dsi = "23" // Lc + + "3021" // Tag/Length of Sequence, the 0x21 includes all following 33 bytes + + "3009" // Tag/Length of Sequence, the 0x09 are the following header bytes + + "0605" + "2B0E03021A" // OID of SHA1 + + "0500" // TLV coding of ZERO + + "0414" + getHex(hash); // 0x14 are 20 hash bytes + break; + case HashAlgorithmTags.RIPEMD160: + if (hash.length != 20) { + throw new RuntimeException("Bad hash length (" + hash.length + ", expected 20!"); + } + dsi = "233021300906052B2403020105000414" + getHex(hash); + break; + case HashAlgorithmTags.SHA224: + if (hash.length != 28) { + throw new RuntimeException("Bad hash length (" + hash.length + ", expected 28!"); + } + dsi = "2F302D300D06096086480165030402040500041C" + getHex(hash); + break; + case HashAlgorithmTags.SHA256: + if (hash.length != 32) { + throw new RuntimeException("Bad hash length (" + hash.length + ", expected 32!"); + } + dsi = "333031300D060960864801650304020105000420" + getHex(hash); + break; + case HashAlgorithmTags.SHA384: + if (hash.length != 48) { + throw new RuntimeException("Bad hash length (" + hash.length + ", expected 48!"); + } + dsi = "433041300D060960864801650304020205000430" + getHex(hash); + break; + case HashAlgorithmTags.SHA512: + if (hash.length != 64) { + throw new RuntimeException("Bad hash length (" + hash.length + ", expected 64!"); + } + dsi = "533051300D060960864801650304020305000440" + getHex(hash); + break; + default: + throw new RuntimeException("Not supported hash algo!"); + } + + // Command APDU for PERFORM SECURITY OPERATION: COMPUTE DIGITAL SIGNATURE (page 37) + String apdu = + "002A9E9A" // CLA, INS, P1, P2 + + dsi // digital signature input + + "00"; // Le + + String response = card(apdu); + + // split up response into signature and status + String status = response.substring(response.length()-4); + String signature = response.substring(0, response.length() - 4); + + // while we are getting 0x61 status codes, retrieve more data + while (status.substring(0, 2).equals("61")) { + Log.d(Constants.TAG, "requesting more data, status " + status); + // Send GET RESPONSE command + response = card("00C00000" + status.substring(2)); + status = response.substring(response.length()-4); + signature += response.substring(0, response.length()-4); + } + + Log.d(Constants.TAG, "final response:" + status); + + if ( ! status.equals("9000")) { + toast("Bad NFC response code: " + status); + return null; + } + + // Make sure the signature we received is actually the expected number of bytes long! + if (signature.length() != 256 && signature.length() != 512) { + toast("Bad signature length! Expected 128 or 256 bytes, got " + signature.length() / 2); + return null; + } + + return Hex.decode(signature); + } + + /** + * Calls to calculate the signature and returns the MPI value + * + * @param encryptedSessionKey the encoded session key + * @return the decoded session key + * @throws java.io.IOException + */ + public byte[] nfcDecryptSessionKey(byte[] encryptedSessionKey) throws IOException { + String firstApdu = "102a8086fe"; + String secondApdu = "002a808603"; + String le = "00"; + + byte[] one = new byte[254]; + // leave out first byte: + System.arraycopy(encryptedSessionKey, 1, one, 0, one.length); + + byte[] two = new byte[encryptedSessionKey.length - 1 - one.length]; + for (int i = 0; i < two.length; i++) { + two[i] = encryptedSessionKey[i + one.length + 1]; + } + + String first = card(firstApdu + getHex(one)); + String second = card(secondApdu + getHex(two) + le); + + String decryptedSessionKey = getDataField(second); + + Log.d(Constants.TAG, "decryptedSessionKey: " + decryptedSessionKey); + + return Hex.decode(decryptedSessionKey); + } + + /** + * Prints a message to the screen + * + * @param text the text which should be contained within the toast + */ + private void toast(String text) { + Toast.makeText(this, text, Toast.LENGTH_LONG).show(); + } + + /** + * Receive new NFC Intents to this activity only by enabling foreground dispatch. + * This can only be done in onResume! + */ + public void enableNfcForegroundDispatch() { + mNfcAdapter = NfcAdapter.getDefaultAdapter(this); + Intent nfcI = new Intent(this, NfcOperationActivity.class) + .addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP | Intent.FLAG_ACTIVITY_CLEAR_TOP); + PendingIntent nfcPendingIntent = PendingIntent.getActivity(this, 0, nfcI, PendingIntent.FLAG_CANCEL_CURRENT); + IntentFilter[] writeTagFilters = new IntentFilter[]{ + new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED) + }; + + // https://code.google.com/p/android/issues/detail?id=62918 + // maybe mNfcAdapter.enableReaderMode(); ? + try { + mNfcAdapter.enableForegroundDispatch(this, nfcPendingIntent, writeTagFilters, null); + } catch (IllegalStateException e) { + Log.i(Constants.TAG, "NfcForegroundDispatch Error!", e); + } + Log.d(Constants.TAG, "NfcForegroundDispatch has been enabled!"); + } + + /** + * Disable foreground dispatch in onPause! + */ + public void disableNfcForegroundDispatch() { + mNfcAdapter.disableForegroundDispatch(this); + Log.d(Constants.TAG, "NfcForegroundDispatch has been disabled!"); + } + + /** + * Gets the name of the user out of the raw card output regarding card holder related data + * + * @param name the raw card holder related data from the card + * @return the name given in this data + */ + public String getName(String name) { + String slength; + int ilength; + name = name.substring(6); + slength = name.substring(0, 2); + ilength = Integer.parseInt(slength, 16) * 2; + name = name.substring(2, ilength + 2); + name = (new String(Hex.decode(name))).replace('<', ' '); + return (name); + } + + /** + * Reduces the raw data from the card by four characters + * + * @param output the raw data from the card + * @return the data field of that data + */ + private String getDataField(String output) { + return output.substring(0, output.length() - 4); + } + + /** + * Communicates with the OpenPgpCard via the APDU + * + * @param hex the hexadecimal APDU + * @return The answer from the card + * @throws java.io.IOException throws an exception if something goes wrong + */ + public String card(String hex) throws IOException { + return getHex(mIsoDep.transceive(Hex.decode(hex))); + } + + /** + * Converts a byte array into an hex string + * + * @param raw the byte array representation + * @return the hexadecimal string representation + */ + public static String getHex(byte[] raw) { + return new String(Hex.encode(raw)); + } +} |