mirror of
https://github.com/moparisthebest/open-keychain
synced 2024-11-24 01:32:16 -05:00
wrapped-key-ring: redesign underlying CachedKeyRing
This commit is contained in:
parent
d0e3af505c
commit
411b4cfeb2
@ -3,45 +3,66 @@ package org.sufficientlysecure.keychain.pgp;
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public abstract class CachedKeyRing {
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private final long mMasterKeyId;
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private final boolean mCanCertify;
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private final byte[] mFingerprint;
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private final String mUserId;
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private final boolean mHasAnySecret;
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private final boolean mIsRevoked;
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private final boolean mCanCertify;
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private final long mHasEncryptId;
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private final long mHasSignId;
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private final int mVerified;
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private final boolean mHasSecret;
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protected CachedKeyRing(long masterKeyId, boolean canCertify,
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byte[] fingerprint, String userId, int verified, boolean hasSecret)
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protected CachedKeyRing(long masterKeyId, String userId, boolean hasAnySecret,
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boolean isRevoked, boolean canCertify, long hasEncryptId, long hasSignId,
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int verified)
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{
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mMasterKeyId = masterKeyId;
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mCanCertify = canCertify;
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mFingerprint = fingerprint;
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mUserId = userId;
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mHasAnySecret = hasAnySecret;
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mIsRevoked = isRevoked;
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mCanCertify = canCertify;
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mHasEncryptId = hasEncryptId;
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mHasSignId = hasSignId;
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mVerified = verified;
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mHasSecret = hasSecret;
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}
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public byte[] getFingerprint() {
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return mFingerprint;
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}
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public String getPrimaryUserId() {
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return mUserId;
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}
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public long getMasterKeyId() {
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return mMasterKeyId;
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}
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public int getVerified() {
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return mVerified;
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public String getPrimaryUserId() {
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return mUserId;
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}
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public boolean hasAnySecret() {
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return mHasAnySecret;
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}
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public boolean isRevoked() {
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return mIsRevoked;
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}
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public boolean canCertify() {
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return mCanCertify;
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}
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public boolean hasSecret() {
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return mHasSecret;
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public long getEncryptId() {
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return mHasEncryptId;
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}
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public boolean hasEncrypt() {
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return mHasEncryptId != 0;
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}
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public long getSignId() {
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return mHasSignId;
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}
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public boolean hasSign() {
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return mHasSignId != 0;
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}
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public int getVerified() {
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return mVerified;
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}
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}
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@ -23,14 +23,14 @@ public class CachedPublicKeyRing extends CachedKeyRing {
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private PGPPublicKeyRing mRing;
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private final byte[] mPubKey;
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public CachedPublicKeyRing(long masterKeyId, int keySize, boolean isRevoked,
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boolean canCertify, long creation, long expiry, int algorithm,
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byte[] fingerprint, String userId, int verified, boolean hasSecret,
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byte[] pubkey)
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public CachedPublicKeyRing(long masterKeyId, String userId, boolean hasAnySecret,
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boolean isRevoked, boolean canCertify, long hasEncryptId, long hasSignId,
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int verified, byte[] blob)
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{
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super(masterKeyId, canCertify, fingerprint, userId, verified, hasSecret);
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super(masterKeyId, userId, hasAnySecret, isRevoked, canCertify,
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hasEncryptId, hasSignId, verified);
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mPubKey = pubkey;
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mPubKey = blob;
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}
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PGPPublicKeyRing getRing() {
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@ -52,46 +52,18 @@ public class CachedPublicKeyRing extends CachedKeyRing {
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return new CachedPublicKey(this, getRing().getPublicKey(id));
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}
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public CachedPublicKey getFirstSignSubkey() throws PgpGeneralException {
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// only return master key if no other signing key is available
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CachedPublicKey masterKey = null;
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for (PGPPublicKey k : new IterableIterator<PGPPublicKey>(getRing().getPublicKeys())) {
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CachedPublicKey key = new CachedPublicKey(this, k);
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if (key.isRevoked() || key.canSign() || key.isExpired()) {
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continue;
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}
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if (key.isMasterKey()) {
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masterKey = key;
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} else {
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return key;
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/** Getter that returns the subkey that should be used for signing. */
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CachedPublicKey getEncryptionSubKey() throws PgpGeneralException {
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PGPPublicKey key = getRing().getPublicKey(getEncryptId());
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if(key != null) {
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CachedPublicKey cKey = new CachedPublicKey(this, key);
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if(!cKey.canEncrypt()) {
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throw new PgpGeneralException("key error");
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}
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return cKey;
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}
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if(masterKey == null) {
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// TODO proper exception
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throw new PgpGeneralException("key not found");
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}
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return masterKey;
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}
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public CachedPublicKey getFirstEncryptSubkey() throws PgpGeneralException {
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// only return master key if no other encryption key is available
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CachedPublicKey masterKey = null;
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for (PGPPublicKey k : new IterableIterator<PGPPublicKey>(getRing().getPublicKeys())) {
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CachedPublicKey key = new CachedPublicKey(this, k);
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if (key.isRevoked() || key.canEncrypt() || key.isExpired()) {
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continue;
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}
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if (key.isMasterKey()) {
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masterKey = key;
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} else {
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return key;
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}
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}
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if(masterKey == null) {
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// TODO proper exception
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throw new PgpGeneralException("key not found");
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}
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return masterKey;
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// TODO handle with proper exception
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throw new PgpGeneralException("no encryption key available");
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}
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public boolean verifySubkeyBinding(CachedPublicKey cachedSubkey) {
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@ -189,4 +161,24 @@ public class CachedPublicKeyRing extends CachedKeyRing {
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return validPrimaryKeyBinding;
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}
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public IterableIterator<CachedPublicKey> iterator() {
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final Iterator<PGPPublicKey> it = getRing().getPublicKeys();
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return new IterableIterator<CachedPublicKey>(new Iterator<CachedPublicKey>() {
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@Override
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public boolean hasNext() {
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return it.hasNext();
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}
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@Override
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public CachedPublicKey next() {
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return new CachedPublicKey(CachedPublicKeyRing.this, it.next());
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}
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@Override
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public void remove() {
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it.remove();
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}
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});
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}
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}
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@ -1,18 +1,15 @@
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package org.sufficientlysecure.keychain.pgp;
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import org.spongycastle.bcpg.sig.KeyFlags;
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import org.spongycastle.openpgp.PGPException;
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import org.spongycastle.openpgp.PGPPrivateKey;
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import org.spongycastle.openpgp.PGPPublicKey;
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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.PGPSignatureSubpacketVector;
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import org.spongycastle.openpgp.operator.PBESecretKeyDecryptor;
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import org.spongycastle.openpgp.operator.jcajce.JcaPGPDigestCalculatorProviderBuilder;
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import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyDecryptorBuilder;
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import org.spongycastle.openpgp.operator.jcajce.JcePBESecretKeyEncryptorBuilder;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
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import org.sufficientlysecure.keychain.util.IterableIterator;
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import java.io.IOException;
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@ -23,12 +20,13 @@ public class CachedSecretKeyRing extends CachedKeyRing {
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private PGPSecretKeyRing mRing;
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public CachedSecretKeyRing(long masterKeyId, int keySize, boolean isRevoked,
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boolean canCertify, long creation, long expiry, int algorithm,
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byte[] fingerprint, String userId, int verified, boolean hasSecret,
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byte[] blob)
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public CachedSecretKeyRing(long masterKeyId, String userId, boolean hasAnySecret,
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boolean isRevoked, boolean canCertify, long hasEncryptId, long hasSignId,
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int verified, byte[] blob)
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{
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super(masterKeyId, canCertify, fingerprint, userId, verified, hasSecret);
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super(masterKeyId, userId, hasAnySecret,
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isRevoked, canCertify, hasEncryptId, hasSignId,
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verified);
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mRing = (PGPSecretKeyRing) PgpConversionHelper.BytesToPGPKeyRing(blob);
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}
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@ -45,8 +43,18 @@ public class CachedSecretKeyRing extends CachedKeyRing {
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return new CachedSecretKey(this, mRing.getSecretKey(id));
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}
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public IterableIterator<CachedSecretKey> iterator() {
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return new IterableIterator<CachedSecretKey>(mRing.getSecretKeys());
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/** Getter that returns the subkey that should be used for signing. */
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CachedSecretKey getSigningSubKey() throws PgpGeneralException {
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PGPSecretKey key = mRing.getSecretKey(getSignId());
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if(key != null) {
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CachedSecretKey cKey = new CachedSecretKey(this, key);
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if(!cKey.canSign()) {
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throw new PgpGeneralException("key error");
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}
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return cKey;
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}
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// TODO handle with proper exception
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throw new PgpGeneralException("no signing key available");
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}
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public boolean hasPassphrase() {
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@ -74,50 +82,6 @@ public class CachedSecretKeyRing extends CachedKeyRing {
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}
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}
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/** This returns the subkey that should be used for signing.
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* At this point, this is simply the first suitable subkey.
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*/
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CachedSecretKey getSigningSubKey() {
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for (PGPSecretKey key : new IterableIterator<PGPSecretKey>(mRing.getSecretKeys())) {
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if (isSigningKey(key.getPublicKey())) {
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return new CachedSecretKey(this, key);
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}
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}
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// TODO exception
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return null;
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}
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@SuppressWarnings("unchecked")
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public static boolean isSigningKey(PGPPublicKey key) {
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if (key.getVersion() <= 3) {
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return true;
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}
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// special case
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if (key.getAlgorithm() == PGPPublicKey.RSA_SIGN) {
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return true;
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}
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for (PGPSignature sig : new IterableIterator<PGPSignature>(key.getSignatures())) {
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if (key.isMasterKey() && sig.getKeyID() != key.getKeyID()) {
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continue;
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}
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PGPSignatureSubpacketVector hashed = sig.getHashedSubPackets();
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if (hashed != null && (hashed.getKeyFlags() & KeyFlags.SIGN_DATA) != 0) {
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return true;
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}
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PGPSignatureSubpacketVector unhashed = sig.getUnhashedSubPackets();
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if (unhashed != null && (unhashed.getKeyFlags() & KeyFlags.SIGN_DATA) != 0) {
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return true;
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}
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}
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return false;
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}
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public UncachedSecretKeyRing changeSecretKeyPassphrase(String oldPassphrase,
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String newPassphrase)
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throws IOException, PGPException, NoSuchProviderException {
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@ -141,4 +105,24 @@ public class CachedSecretKeyRing extends CachedKeyRing {
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}
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public IterableIterator<CachedSecretKey> iterator() {
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final Iterator<PGPSecretKey> it = mRing.getSecretKeys();
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return new IterableIterator<CachedSecretKey>(new Iterator<CachedSecretKey>() {
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@Override
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public boolean hasNext() {
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return it.hasNext();
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}
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@Override
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public CachedSecretKey next() {
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return new CachedSecretKey(CachedSecretKeyRing.this, it.next());
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}
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@Override
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public void remove() {
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it.remove();
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}
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});
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}
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}
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@ -270,14 +270,15 @@ public class PgpSignEncrypt {
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/* Get keys for signature generation for later usage */
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CachedSecretKey signingKey = null;
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if (enableSignature) {
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CachedSecretKeyRing signingKeyRing = null;
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CachedSecretKeyRing signingKeyRing;
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try {
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signingKeyRing = mProviderHelper.getCachedSecretKeyRing(mSignatureMasterKeyId);
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} catch (ProviderHelper.NotFoundException e) {
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throw new NoSigningKeyException();
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}
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signingKey = signingKeyRing.getSigningSubKey();
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if (signingKey == null) {
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try {
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signingKey = signingKeyRing.getSigningSubKey();
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} catch(PgpGeneralException e) {
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throw new NoSigningKeyException();
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}
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@ -319,7 +320,7 @@ public class PgpSignEncrypt {
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try {
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CachedPublicKeyRing keyRing = mProviderHelper.getCachedPublicKeyRing(
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KeyRings.buildUnifiedKeyRingUri(Long.toString(id)));
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CachedPublicKey key = keyRing.getFirstEncryptSubkey();
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CachedPublicKey key = keyRing.getEncryptionSubKey();
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cPk.addMethod(key.getPubKeyEncryptionGenerator());
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} catch (PgpGeneralException e) {
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Log.e(Constants.TAG, "key not found!", e);
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@ -38,6 +38,7 @@ import org.spongycastle.openpgp.PGPSecretKeyRing;
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import org.spongycastle.openpgp.PGPSignature;
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import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.pgp.CachedKeyRing;
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import org.sufficientlysecure.keychain.pgp.CachedSecretKeyRing;
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import org.sufficientlysecure.keychain.pgp.CachedPublicKeyRing;
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import org.sufficientlysecure.keychain.pgp.PgpConversionHelper;
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@ -193,86 +194,55 @@ public class ProviderHelper {
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}
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public CachedPublicKeyRing getCachedPublicKeyRing(long id) throws NotFoundException {
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return getCachedPublicKeyRing(KeyRings.buildUnifiedKeyRingUri(Long.toString(id)));
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return (CachedPublicKeyRing) getCachedKeyRing(
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KeyRings.buildUnifiedKeyRingUri(Long.toString(id)), false);
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}
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public CachedPublicKeyRing getCachedPublicKeyRing(Uri queryUri) throws NotFoundException {
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Cursor cursor = mContentResolver.query(queryUri,
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new String[] {
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KeyRings.MASTER_KEY_ID, KeyRings.KEY_SIZE,
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KeyRings.IS_REVOKED, KeyRings.CAN_CERTIFY,
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KeyRings.CREATION, KeyRings.EXPIRY,
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KeyRings.ALGORITHM, KeyRings.FINGERPRINT,
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KeyRings.USER_ID, KeyRings.VERIFIED,
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KeyRings.HAS_SECRET, KeyRings.PUBKEY_DATA
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}, null, null, null);
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try {
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if (cursor != null && cursor.moveToFirst()) {
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long masterKeyId = cursor.getLong(0);
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int keySize = cursor.getInt(1);
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boolean isRevoked = cursor.getInt(2) > 0;
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boolean canCertify = cursor.getInt(3) > 0;
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long creation = cursor.getLong(4);
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long expiry = cursor.getLong(5);
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int algorithm = cursor.getInt(6);
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byte[] fingerprint = cursor.getBlob(7);
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String userId = cursor.getString(8);
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int verified = cursor.getInt(9);
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boolean hasSecret = cursor.getInt(10) > 0;
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byte[] pubkey = cursor.getBlob(11);
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return new CachedPublicKeyRing(
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masterKeyId, keySize, isRevoked, canCertify,
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creation, expiry, algorithm, fingerprint,
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userId, verified, hasSecret, pubkey
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);
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} else {
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throw new NotFoundException("Key not found!");
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}
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} finally {
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if (cursor != null) {
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cursor.close();
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}
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}
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return (CachedPublicKeyRing) getCachedKeyRing(queryUri, false);
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}
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public CachedSecretKeyRing getCachedSecretKeyRing(long id) throws NotFoundException {
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return getCachedSecretKeyRing(KeyRings.buildUnifiedKeyRingUri(Long.toString(id)));
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return (CachedSecretKeyRing) getCachedKeyRing(
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KeyRings.buildUnifiedKeyRingUri(Long.toString(id)), true);
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}
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public CachedSecretKeyRing getCachedSecretKeyRing(Uri queryUri) throws NotFoundException {
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return (CachedSecretKeyRing) getCachedKeyRing(queryUri, true);
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}
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private CachedKeyRing getCachedKeyRing(Uri queryUri, boolean secret) throws NotFoundException {
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Cursor cursor = mContentResolver.query(queryUri,
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new String[] {
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KeyRings.MASTER_KEY_ID, KeyRings.KEY_SIZE,
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KeyRings.IS_REVOKED, KeyRings.CAN_CERTIFY,
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KeyRings.CREATION, KeyRings.EXPIRY,
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KeyRings.ALGORITHM, KeyRings.FINGERPRINT,
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KeyRings.USER_ID, KeyRings.VERIFIED,
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KeyRings.HAS_SECRET, KeyRings.PRIVKEY_DATA
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// we pick from cache:
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// basic data, primary uid in particular because it's expensive
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KeyRings.MASTER_KEY_ID, KeyRings.USER_ID, KeyRings.HAS_ANY_SECRET,
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// complex knowledge about subkeys
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KeyRings.IS_REVOKED, KeyRings.CAN_CERTIFY, KeyRings.HAS_ENCRYPT, KeyRings.HAS_SIGN,
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// stuff only the db knows and of course, ring data
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KeyRings.VERIFIED, secret ? KeyRings.PRIVKEY_DATA : KeyRings.PUBKEY_DATA
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}, null, null, null);
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try {
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if (cursor != null && cursor.moveToFirst()) {
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// check if a privkey is actually available
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byte[] privkey = cursor.getBlob(11);
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if(privkey == null) {
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throw new NotFoundException("Key found, but no secret key available!");
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}
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long masterKeyId = cursor.getLong(0);
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int keySize = cursor.getInt(1);
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boolean isRevoked = cursor.getInt(2) > 0;
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boolean canCertify = cursor.getInt(3) > 0;
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long creation = cursor.getLong(4);
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long expiry = cursor.getLong(5);
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int algorithm = cursor.getInt(6);
|
||||
byte[] fingerprint = cursor.getBlob(7);
|
||||
String userId = cursor.getString(8);
|
||||
int verified = cursor.getInt(9);
|
||||
boolean hasSecret = cursor.getInt(10) > 0;
|
||||
return new CachedSecretKeyRing(
|
||||
masterKeyId, keySize, isRevoked, canCertify,
|
||||
creation, expiry, algorithm, fingerprint,
|
||||
userId, verified, hasSecret, privkey
|
||||
);
|
||||
String userId = cursor.getString(1);
|
||||
boolean hasAnySecret = cursor.getInt(2) > 0;
|
||||
boolean isRevoked = cursor.getInt(3) > 0;
|
||||
boolean canCertify = cursor.getInt(4) > 0;
|
||||
long hasEncryptId = cursor.getLong(5);
|
||||
long hasSignId = cursor.getLong(6);
|
||||
int verified = cursor.getInt(7);
|
||||
byte[] blob = cursor.getBlob(8);
|
||||
return secret
|
||||
? new CachedSecretKeyRing(
|
||||
masterKeyId, userId, hasAnySecret,
|
||||
isRevoked, canCertify, hasEncryptId, hasSignId,
|
||||
verified, blob)
|
||||
: new CachedPublicKeyRing(
|
||||
masterKeyId, userId, hasAnySecret,
|
||||
isRevoked, canCertify, hasEncryptId, hasSignId,
|
||||
verified, blob);
|
||||
} else {
|
||||
throw new NotFoundException("Key not found!");
|
||||
}
|
||||
|
@ -30,16 +30,10 @@ import android.widget.TextView;
|
||||
|
||||
import com.beardedhen.androidbootstrap.BootstrapButton;
|
||||
|
||||
import org.spongycastle.openpgp.PGPSecretKey;
|
||||
import org.spongycastle.openpgp.PGPSecretKeyRing;
|
||||
import org.sufficientlysecure.keychain.Constants;
|
||||
import org.sufficientlysecure.keychain.R;
|
||||
import org.sufficientlysecure.keychain.pgp.CachedPublicKey;
|
||||
import org.sufficientlysecure.keychain.pgp.CachedPublicKeyRing;
|
||||
import org.sufficientlysecure.keychain.pgp.CachedSecretKey;
|
||||
import org.sufficientlysecure.keychain.pgp.CachedSecretKeyRing;
|
||||
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
|
||||
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
|
||||
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
|
||||
import org.sufficientlysecure.keychain.provider.ProviderHelper;
|
||||
import org.sufficientlysecure.keychain.util.Log;
|
||||
@ -155,7 +149,7 @@ public class EncryptAsymmetricFragment extends Fragment {
|
||||
try {
|
||||
CachedPublicKeyRing keyring =
|
||||
providerHelper.getCachedPublicKeyRing(preselectedSignatureKeyId);
|
||||
if(keyring.hasSecret()) {
|
||||
if(keyring.hasAnySecret()) {
|
||||
setSignatureKeyId(keyring.getMasterKeyId());
|
||||
}
|
||||
} catch (ProviderHelper.NotFoundException e) {
|
||||
|
Loading…
Reference in New Issue
Block a user