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Adding keytocard flag to SubkeyChange: UI sets this flag to initiate keytocard; operation unsets it and fills in dummyDivert to finish it.

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This commit is contained in:
Joey Castillo 2015-05-13 06:01:42 -04:00
parent d21fb77336
commit 28b9068ae0
4 changed files with 45 additions and 32 deletions
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36
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/PgpKeyOperation.java
View File

@ -412,7 +412,7 @@ public class PgpKeyOperation {
}
for(SaveKeyringParcel.SubkeyChange change : saveParcel.mChangeSubKeys) {
if (change.mDummyDivert != null && change.mDummyDivert.length == 0) {
if (change.mMoveKeyToCard) {
// If this is a keytocard operation, see if it was completed: look for a hash
// matching the given subkey ID in cryptoData.
byte[] subKeyId = new byte[8];
@ -421,6 +421,7 @@ public class PgpKeyOperation {
byte[] serialNumber = cryptoInput.getCryptoData().get(buf);
if (serialNumber != null) {
change.mMoveKeyToCard = false;
change.mDummyDivert = serialNumber;
}
}
@ -776,28 +777,27 @@ public class PgpKeyOperation {
// no really, it is. this operation irrevocably removes the private key data from the key
sKey = PGPSecretKey.constructGnuDummyKey(sKey.getPublicKey());
sKR = PGPSecretKeyRing.insertSecretKey(sKR, sKey);
} else if (change.mDummyDivert != null) {
if (change.mDummyDivert.length == 0) {
// If serial number is 0 length, we're moving the key to a card.
if (checkSmartCardCompatibility(sKey, log, indent + 1)) {
log.add(LogType.MSG_MF_KEYTOCARD_START, indent + 1,
KeyFormattingUtils.convertKeyIdToHex(change.mKeyId));
nfcKeyToCardOps.addSubkey(change.mKeyId);
} else {
return new PgpEditKeyResult(EditKeyResult.RESULT_ERROR, log, null);
}
} else if (change.mDummyDivert.length == 16) {
// If serial number is 16 bytes long, we're associating the key with a card.
log.add(LogType.MSG_MF_KEYTOCARD_FINISH, indent + 1,
KeyFormattingUtils.convertKeyIdToHex(change.mKeyId),
Hex.toHexString(change.mDummyDivert, 8, 6));
sKey = PGPSecretKey.constructGnuDummyKey(sKey.getPublicKey(), change.mDummyDivert);
sKR = PGPSecretKeyRing.insertSecretKey(sKR, sKey);
} else if (change.mMoveKeyToCard) {
if (checkSmartCardCompatibility(sKey, log, indent + 1)) {
log.add(LogType.MSG_MF_KEYTOCARD_START, indent + 1,
KeyFormattingUtils.convertKeyIdToHex(change.mKeyId));
nfcKeyToCardOps.addSubkey(change.mKeyId);
} else {
// Appropriate log message already set by checkSmartCardCompatibility
return new PgpEditKeyResult(EditKeyResult.RESULT_ERROR, log, null);
}
} else if (change.mDummyDivert != null) {
// NOTE: Does this code get executed? Or always handled in internalRestricted?
if (change.mDummyDivert.length != 16) {
log.add(LogType.MSG_MF_ERROR_DIVERT_SERIAL,
indent + 1, KeyFormattingUtils.convertKeyIdToHex(change.mKeyId));
return new PgpEditKeyResult(PgpEditKeyResult.RESULT_ERROR, log, null);
}
log.add(LogType.MSG_MF_KEYTOCARD_FINISH, indent + 1,
KeyFormattingUtils.convertKeyIdToHex(change.mKeyId),
Hex.toHexString(change.mDummyDivert, 8, 6));
sKey = PGPSecretKey.constructGnuDummyKey(sKey.getPublicKey(), change.mDummyDivert);
sKR = PGPSecretKeyRing.insertSecretKey(sKR, sKey);
}

19
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/SaveKeyringParcel.java
View File

@ -95,8 +95,8 @@ public class SaveKeyringParcel implements Parcelable {
}
for (SubkeyChange change : mChangeSubKeys) {
if (change.mRecertify || change.mFlags != null || change.mExpiry != null ||
(change.mDummyDivert != null && change.mDummyDivert.length == 0)) {
if (change.mRecertify || change.mFlags != null || change.mExpiry != null
|| change.mMoveKeyToCard) {
return false;
}
}
@ -143,6 +143,8 @@ public class SaveKeyringParcel implements Parcelable {
public boolean mRecertify;
// if this flag is true, the subkey should be changed to a stripped key
public boolean mDummyStrip;
// if this flag is true, the subkey should be moved to a card
public boolean mMoveKeyToCard;
// if this is non-null, the subkey will be changed to a divert-to-card
// key for the given serial number
public byte[] mDummyDivert;
@ -174,12 +176,25 @@ public class SaveKeyringParcel implements Parcelable {
mDummyDivert = dummyDivert;
}
public SubkeyChange(long keyId, boolean dummyStrip, boolean moveKeyToCard) {
this(keyId, null, null);
// these flags are mutually exclusive!
if (dummyStrip && moveKeyToCard) {
throw new AssertionError(
"cannot set strip and keytocard flags at the same time - this is a bug!");
}
mDummyStrip = dummyStrip;
mMoveKeyToCard = moveKeyToCard;
}
@Override
public String toString() {
String out = "mKeyId: " + mKeyId + ", ";
out += "mFlags: " + mFlags + ", ";
out += "mExpiry: " + mExpiry + ", ";
out += "mDummyStrip: " + mDummyStrip + ", ";
out += "mMoveKeyToCard: " + mMoveKeyToCard + ", ";
out += "mDummyDivert: [" + (mDummyDivert == null ? 0 : mDummyDivert.length) + " bytes]";
return out;

18
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EditKeyFragment.java
View File

@ -429,14 +429,14 @@ public class EditKeyFragment extends CryptoOperationFragment implements
SubkeyChange change = mSaveKeyringParcel.getSubkeyChange(keyId);
if (change == null) {
mSaveKeyringParcel.mChangeSubKeys.add(new SubkeyChange(keyId, true, null));
mSaveKeyringParcel.mChangeSubKeys.add(new SubkeyChange(keyId, true, false));
break;
}
// toggle
change.mDummyStrip = !change.mDummyStrip;
if (change.mDummyStrip && change.mDummyDivert != null) {
if (change.mDummyStrip && change.mMoveKeyToCard) {
// User had chosen to divert key, but now wants to strip it instead.
change.mDummyDivert = null;
change.mMoveKeyToCard = false;
}
break;
}
@ -455,17 +455,15 @@ public class EditKeyFragment extends CryptoOperationFragment implements
change = mSaveKeyringParcel.getSubkeyChange(keyId);
if (change == null) {
mSaveKeyringParcel.mChangeSubKeys.add(
new SubkeyChange(keyId, false, null)
new SubkeyChange(keyId, false, true)
);
change = mSaveKeyringParcel.getSubkeyChange(keyId);
break;
}
// toggle
if (change.mDummyDivert == null) {
change.mDummyDivert = new byte[0];
// If user had chosen to strip key, we cancel that action now.
change.mMoveKeyToCard = !change.mMoveKeyToCard;
if (change.mMoveKeyToCard && change.mDummyStrip) {
// User had chosen to strip key, but now wants to divert it.
change.mDummyStrip = false;
} else {
change.mDummyDivert = null;
}
break;
}

4
OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/SubkeysAdapter.java
View File

@ -179,7 +179,7 @@ public class SubkeysAdapter extends CursorAdapter {
? mSaveKeyringParcel.getSubkeyChange(keyId)
: null;
if (change != null && (change.mDummyStrip || change.mDummyDivert != null)) {
if (change != null && (change.mDummyStrip || change.mMoveKeyToCard)) {
if (change.mDummyStrip) {
algorithmStr.append(", ");
final SpannableString boldStripped = new SpannableString(
@ -188,7 +188,7 @@ public class SubkeysAdapter extends CursorAdapter {
boldStripped.setSpan(new StyleSpan(Typeface.BOLD), 0, boldStripped.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
algorithmStr.append(boldStripped);
}
if (change.mDummyDivert != null) {
if (change.mMoveKeyToCard) {
algorithmStr.append(", ");
final SpannableString boldDivert = new SpannableString(
context.getString(R.string.key_divert)