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Code Issues Releases Wiki Activity

move can.*() methods to CanonicalizedPublicKey, where they belong

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This commit is contained in:
Vincent Breitmoser 2014-09-28 14:40:49 +02:00
parent 706e60474d
commit 8131daa638
4 changed files with 83 additions and 82 deletions
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1
OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/provider/ProviderHelperSaveTest.java
View File

@ -80,7 +80,6 @@ public class ProviderHelperSaveTest {
UncachedKeyRing pub = readRingFromResource("/test-keys/mailvelope_07_no_key_flags.asc");
long keyId = pub.getMasterKeyId();
Assert.assertNull("key flags should be null", pub.getPublicKey().getKeyUsage());
mProviderHelper.savePublicKeyRing(pub);

83
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/CanonicalizedPublicKey.java
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@ -18,7 +18,11 @@
package org.sufficientlysecure.keychain.pgp;
import org.spongycastle.bcpg.SignatureSubpacketTags;
import org.spongycastle.bcpg.sig.KeyFlags;
import org.spongycastle.openpgp.PGPPublicKey;
import org.spongycastle.openpgp.PGPSignature;
import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
import org.spongycastle.openpgp.operator.jcajce.JcePublicKeyKeyEncryptionMethodGenerator;
import org.sufficientlysecure.keychain.util.IterableIterator;
@ -36,6 +40,7 @@ public class CanonicalizedPublicKey extends UncachedPublicKey {
// this is the parent key ring
final KeyRing mRing;
private Integer mCacheUsage = null;
CanonicalizedPublicKey(KeyRing ring, PGPPublicKey key) {
super(key);
@ -46,12 +51,82 @@ public class CanonicalizedPublicKey extends UncachedPublicKey {
return new IterableIterator<String>(mPublicKey.getUserIDs());
}
public KeyRing getKeyRing() {
return mRing;
}
JcePublicKeyKeyEncryptionMethodGenerator getPubKeyEncryptionGenerator() {
return new JcePublicKeyKeyEncryptionMethodGenerator(mPublicKey);
}
public boolean canSign() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & KeyFlags.SIGN_DATA) != 0;
}
if (UncachedKeyRing.isSigningAlgo(mPublicKey.getAlgorithm())) {
return true;
}
return false;
}
/**
* Get all key usage flags.
* If at least one key flag subpacket is present return these.
* If no subpacket is present it returns null.
*/
@SuppressWarnings("unchecked")
public Integer getKeyUsage() {
if (mCacheUsage == null) {
for (PGPSignature sig : new IterableIterator<PGPSignature>(mPublicKey.getSignatures())) {
if (mPublicKey.isMasterKey() && sig.getKeyID() != mPublicKey.getKeyID()) {
continue;
}
PGPSignatureSubpacketVector hashed = sig.getHashedSubPackets();
if (hashed != null && hashed.getSubpacket(SignatureSubpacketTags.KEY_FLAGS) != null) {
// init if at least one key flag subpacket has been found
if (mCacheUsage == null) {
mCacheUsage = 0;
}
mCacheUsage |= hashed.getKeyFlags();
}
}
}
return mCacheUsage;
}
public boolean canCertify() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & KeyFlags.CERTIFY_OTHER) != 0;
}
if (UncachedKeyRing.isSigningAlgo(mPublicKey.getAlgorithm())) {
return true;
}
return false;
}
public boolean canEncrypt() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & (KeyFlags.ENCRYPT_COMMS | KeyFlags.ENCRYPT_STORAGE)) != 0;
}
// RSA_GENERAL, RSA_ENCRYPT, ELGAMAL_ENCRYPT, ELGAMAL_GENERAL, ECDH
if (UncachedKeyRing.isEncryptionAlgo(mPublicKey.getAlgorithm())) {
return true;
}
return false;
}
public boolean canAuthenticate() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & KeyFlags.AUTHENTICATION) != 0;
}
return false;
}
}

9
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedKeyRing.java
View File

@ -22,7 +22,6 @@ import org.spongycastle.bcpg.ArmoredOutputStream;
import org.spongycastle.bcpg.PublicKeyAlgorithmTags;
import org.spongycastle.bcpg.SignatureSubpacketTags;
import org.spongycastle.bcpg.sig.KeyFlags;
import org.spongycastle.openpgp.PGPKeyFlags;
import org.spongycastle.openpgp.PGPKeyRing;
import org.spongycastle.openpgp.PGPObjectFactory;
import org.spongycastle.openpgp.PGPPublicKey;
@ -626,7 +625,7 @@ public class UncachedKeyRing {
zert.getHashedSubPackets().hasSubpacket(SignatureSubpacketTags.KEY_FLAGS)) {
int flags = ((KeyFlags) zert.getHashedSubPackets()
.getSubpacket(SignatureSubpacketTags.KEY_FLAGS)).getFlags();
if ((flags & PGPKeyFlags.CAN_SIGN) == PGPKeyFlags.CAN_SIGN) {
if ((flags & KeyFlags.SIGN_DATA) == KeyFlags.SIGN_DATA) {
needsPrimaryBinding = true;
}
} else {
@ -727,13 +726,13 @@ public class UncachedKeyRing {
int flags = ((KeyFlags) selfCert.getHashedSubPackets().getSubpacket(SignatureSubpacketTags.KEY_FLAGS)).getFlags();
int algo = key.getAlgorithm();
// If this is a signing key, but not a signing algorithm, warn the user
if (!isSigningAlgo(algo) && (flags & PGPKeyFlags.CAN_SIGN) == PGPKeyFlags.CAN_SIGN) {
if (!isSigningAlgo(algo) && (flags & KeyFlags.SIGN_DATA) == KeyFlags.SIGN_DATA) {
log.add(LogType.MSG_KC_SUB_ALGO_BAD_SIGN, indent);
}
// If this is an encryption key, but not an encryption algorithm, warn the user
if (!isEncryptionAlgo(algo) && (
(flags & PGPKeyFlags.CAN_ENCRYPT_COMMS) == PGPKeyFlags.CAN_ENCRYPT_COMMS
|| (flags & PGPKeyFlags.CAN_ENCRYPT_STORAGE) == PGPKeyFlags.CAN_ENCRYPT_STORAGE
(flags & KeyFlags.ENCRYPT_STORAGE) == KeyFlags.ENCRYPT_STORAGE
|| (flags & KeyFlags.ENCRYPT_COMMS) == KeyFlags.ENCRYPT_COMMS
)) {
log.add(LogType.MSG_KC_SUB_ALGO_BAD_ENCRYPT, indent);
}

72
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java
View File

@ -39,7 +39,6 @@ import java.util.Iterator;
public class UncachedPublicKey {
protected final PGPPublicKey mPublicKey;
private Integer mCacheUsage = null;
public UncachedPublicKey(PGPPublicKey key) {
mPublicKey = key;
@ -228,77 +227,6 @@ public class UncachedPublicKey {
return getAlgorithm() == PGPPublicKey.ECDH || getAlgorithm() == PGPPublicKey.ECDSA;
}
/**
* Get all key usage flags.
* If at least one key flag subpacket is present return these.
* If no subpacket is present it returns null.
*/
@SuppressWarnings("unchecked")
public Integer getKeyUsage() {
if (mCacheUsage == null) {
for (PGPSignature sig : new IterableIterator<PGPSignature>(mPublicKey.getSignatures())) {
if (mPublicKey.isMasterKey() && sig.getKeyID() != mPublicKey.getKeyID()) {
continue;
}
PGPSignatureSubpacketVector hashed = sig.getHashedSubPackets();
if (hashed != null && hashed.getSubpacket(SignatureSubpacketTags.KEY_FLAGS) != null) {
// init if at least one key flag subpacket has been found
if (mCacheUsage == null) {
mCacheUsage = 0;
}
mCacheUsage |= hashed.getKeyFlags();
}
}
}
return mCacheUsage;
}
public boolean canCertify() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & KeyFlags.CERTIFY_OTHER) != 0;
}
return false;
}
public boolean canSign() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & KeyFlags.SIGN_DATA) != 0;
}
if (UncachedKeyRing.isSigningAlgo(mPublicKey.getAlgorithm())) {
return true;
}
return false;
}
public boolean canEncrypt() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & (KeyFlags.ENCRYPT_COMMS | KeyFlags.ENCRYPT_STORAGE)) != 0;
}
// RSA_GENERAL, RSA_ENCRYPT, ELGAMAL_ENCRYPT, ELGAMAL_GENERAL, ECDH
if (UncachedKeyRing.isEncryptionAlgo(mPublicKey.getAlgorithm())) {
return true;
}
return false;
}
public boolean canAuthenticate() {
// if key flags subpacket is available, honor it!
if (getKeyUsage() != null) {
return (getKeyUsage() & KeyFlags.AUTHENTICATION) != 0;
}
return false;
}
public byte[] getFingerprint() {
return mPublicKey.getFingerprint();
}