mirror of
https://github.com/moparisthebest/open-keychain
synced 2024-11-27 19:22:14 -05:00
initial split into two functions
This commit is contained in:
Ashley Hughes
parent
c9d9c800b6
commit
034deaacba
@ -198,22 +198,9 @@ public class PgpKeyOperation {
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}
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public void buildSecretKey(ArrayList<String> userIds, ArrayList<String> OriginalIDs, ArrayList<String> deletedIDs, ArrayList<PGPSecretKey> keys, boolean[] modded_keys, ArrayList<PGPSecretKey> deleted_keys, ArrayList<GregorianCalendar> keysExpiryDates, ArrayList<Integer> keysUsages, String newPassPhrase, String oldPassPhrase) throws PgpGeneralException,
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private void buildNewSecretKey(ArrayList<String> userIds, ArrayList<PGPSecretKey> keys, ArrayList<GregorianCalendar> keysExpiryDates, ArrayList<Integer> keysUsages, String newPassPhrase, String oldPassPhrase) throws PgpGeneralException,
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PGPException, SignatureException, IOException {
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Log.d(Constants.TAG, "userIds: " + userIds.toString());
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updateProgress(R.string.progress_building_key, 0, 100);
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if (oldPassPhrase == null) {
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oldPassPhrase = "";
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}
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if (newPassPhrase == null) {
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newPassPhrase = "";
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}
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updateProgress(R.string.progress_preparing_master_key, 10, 100);
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int usageId = keysUsages.get(0);
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boolean canSign;
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String mainUserId = userIds.get(0);
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@ -223,19 +210,163 @@ public class PgpKeyOperation {
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// this removes all userIds and certifications previously attached to the masterPublicKey
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PGPPublicKey masterPublicKey = masterKey.getPublicKey();
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// already done by code above:
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// PGPPublicKey masterPublicKey = masterKey.getPublicKey();
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// // Somehow, the PGPPublicKey already has an empty certification attached to it when the
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// // keyRing is generated the first time, we remove that when it exists, before adding the
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// new
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// // ones
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// PGPPublicKey masterPublicKeyRmCert = PGPPublicKey.removeCertification(masterPublicKey,
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// "");
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// if (masterPublicKeyRmCert != null) {
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// masterPublicKey = masterPublicKeyRmCert;
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// }
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PGPSecretKeyRing mKR = ProviderHelper.getPGPSecretKeyRingByKeyId(mContext, masterKey.getKeyID());
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PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(
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Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(oldPassPhrase.toCharArray());
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PGPPrivateKey masterPrivateKey = masterKey.extractPrivateKey(keyDecryptor);
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updateProgress(R.string.progress_certifying_master_key, 20, 100);
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int user_id_index = 0;
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for (String userId : userIds) {
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PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder(
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masterPublicKey.getAlgorithm(), HashAlgorithmTags.SHA1)
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.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
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PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder);
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sGen.init(PGPSignature.POSITIVE_CERTIFICATION, masterPrivateKey);
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PGPSignature certification = sGen.generateCertification(userId, masterPublicKey);
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masterPublicKey = PGPPublicKey.addCertification(masterPublicKey, userId, certification);
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user_id_index++;
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}
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PGPKeyPair masterKeyPair = new PGPKeyPair(masterPublicKey, masterPrivateKey);
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PGPSignatureSubpacketGenerator hashedPacketsGen = new PGPSignatureSubpacketGenerator();
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PGPSignatureSubpacketGenerator unhashedPacketsGen = new PGPSignatureSubpacketGenerator();
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hashedPacketsGen.setKeyFlags(true, usageId);
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hashedPacketsGen.setPreferredSymmetricAlgorithms(true, PREFERRED_SYMMETRIC_ALGORITHMS);
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hashedPacketsGen.setPreferredHashAlgorithms(true, PREFERRED_HASH_ALGORITHMS);
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hashedPacketsGen.setPreferredCompressionAlgorithms(true, PREFERRED_COMPRESSION_ALGORITHMS);
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if (keysExpiryDates.get(0) != null) {
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GregorianCalendar creationDate = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
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creationDate.setTime(masterPublicKey.getCreationTime());
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GregorianCalendar expiryDate = keysExpiryDates.get(0);
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//note that the below, (a/c) - (b/c) is *not* the same as (a - b) /c
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//here we purposefully ignore partial days in each date - long type has no fractional part!
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long numDays = (expiryDate.getTimeInMillis() / 86400000) - (creationDate.getTimeInMillis() / 86400000);
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if (numDays <= 0)
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throw new PgpGeneralException(mContext.getString(R.string.error_expiry_must_come_after_creation));
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hashedPacketsGen.setKeyExpirationTime(false, numDays * 86400);
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} else {
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hashedPacketsGen.setKeyExpirationTime(false, 0); //do this explicitly, although since we're rebuilding,
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//this happens anyway
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}
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updateProgress(R.string.progress_building_master_key, 30, 100);
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// define hashing and signing algos
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PGPDigestCalculator sha1Calc = new JcaPGPDigestCalculatorProviderBuilder().build().get(
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HashAlgorithmTags.SHA1);
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PGPContentSignerBuilder certificationSignerBuilder = new JcaPGPContentSignerBuilder(
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masterKeyPair.getPublicKey().getAlgorithm(), HashAlgorithmTags.SHA1);
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// Build key encrypter based on passphrase
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PBESecretKeyEncryptor keyEncryptor = new JcePBESecretKeyEncryptorBuilder(
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PGPEncryptedData.CAST5, sha1Calc)
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.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
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newPassPhrase.toCharArray());
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PGPKeyRingGenerator keyGen = new PGPKeyRingGenerator(PGPSignature.POSITIVE_CERTIFICATION,
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masterKeyPair, mainUserId, sha1Calc, hashedPacketsGen.generate(),
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unhashedPacketsGen.generate(), certificationSignerBuilder, keyEncryptor);
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updateProgress(R.string.progress_adding_sub_keys, 40, 100);
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for (int i = 1; i < keys.size(); ++i) {
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updateProgress(40 + 50 * (i - 1) / (keys.size() - 1), 100);
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PGPSecretKey subKey = keys.get(i);
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PGPPublicKey subPublicKey = subKey.getPublicKey();
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PBESecretKeyDecryptor keyDecryptor2 = new JcePBESecretKeyDecryptorBuilder()
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.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(
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oldPassPhrase.toCharArray());
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PGPPrivateKey subPrivateKey = subKey.extractPrivateKey(keyDecryptor2);
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// TODO: now used without algorithm and creation time?! (APG 1)
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PGPKeyPair subKeyPair = new PGPKeyPair(subPublicKey, subPrivateKey);
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hashedPacketsGen = new PGPSignatureSubpacketGenerator();
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unhashedPacketsGen = new PGPSignatureSubpacketGenerator();
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usageId = keysUsages.get(i);
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canSign = (usageId & KeyFlags.SIGN_DATA) > 0; //todo - separate function for this
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if (canSign) {
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Date todayDate = new Date(); //both sig times the same
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// cross-certify signing keys
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hashedPacketsGen.setSignatureCreationTime(false, todayDate); //set outer creation time
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PGPSignatureSubpacketGenerator subHashedPacketsGen = new PGPSignatureSubpacketGenerator();
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subHashedPacketsGen.setSignatureCreationTime(false, todayDate); //set inner creation time
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PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder(
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subPublicKey.getAlgorithm(), PGPUtil.SHA1)
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.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
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PGPSignatureGenerator sGen = new PGPSignatureGenerator(signerBuilder);
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sGen.init(PGPSignature.PRIMARYKEY_BINDING, subPrivateKey);
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sGen.setHashedSubpackets(subHashedPacketsGen.generate());
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PGPSignature certification = sGen.generateCertification(masterPublicKey,
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subPublicKey);
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unhashedPacketsGen.setEmbeddedSignature(false, certification);
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}
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hashedPacketsGen.setKeyFlags(false, usageId);
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if (keysExpiryDates.get(i) != null) {
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GregorianCalendar creationDate = new GregorianCalendar(TimeZone.getTimeZone("UTC"));
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creationDate.setTime(subPublicKey.getCreationTime());
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GregorianCalendar expiryDate = keysExpiryDates.get(i);
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//note that the below, (a/c) - (b/c) is *not* the same as (a - b) /c
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//here we purposefully ignore partial days in each date - long type has no fractional part!
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long numDays = (expiryDate.getTimeInMillis() / 86400000) - (creationDate.getTimeInMillis() / 86400000);
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if (numDays <= 0)
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throw new PgpGeneralException(mContext.getString(R.string.error_expiry_must_come_after_creation));
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hashedPacketsGen.setKeyExpirationTime(false, numDays * 86400);
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} else {
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hashedPacketsGen.setKeyExpirationTime(false, 0); //do this explicitly, although since we're rebuilding,
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//this happens anyway
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}
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keyGen.addSubKey(subKeyPair, hashedPacketsGen.generate(), unhashedPacketsGen.generate());
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}
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PGPSecretKeyRing secretKeyRing = keyGen.generateSecretKeyRing();
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PGPPublicKeyRing publicKeyRing = keyGen.generatePublicKeyRing();
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updateProgress(R.string.progress_saving_key_ring, 90, 100);
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ProviderHelper.saveKeyRing(mContext, secretKeyRing);
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ProviderHelper.saveKeyRing(mContext, publicKeyRing);
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updateProgress(R.string.progress_done, 100, 100);
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}
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public void buildSecretKey(ArrayList<String> userIds, ArrayList<String> OriginalIDs, ArrayList<String> deletedIDs, ArrayList<PGPSecretKey> keys, boolean[] modded_keys, ArrayList<PGPSecretKey> deleted_keys, ArrayList<GregorianCalendar> keysExpiryDates, ArrayList<Integer> keysUsages, String newPassPhrase, String oldPassPhrase) throws PgpGeneralException,
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PGPException, SignatureException, IOException {
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updateProgress(R.string.progress_building_key, 0, 100);
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PGPSecretKey masterKey = keys.get(0);
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PGPSecretKeyRing mKR = ProviderHelper.getPGPSecretKeyRingByKeyId(mContext, masterKey.getKeyID());
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if (oldPassPhrase == null) {
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oldPassPhrase = "";
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}
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if (newPassPhrase == null) {
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newPassPhrase = "";
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}
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if (mKR == null)
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buildNewSecretKey(userIds, keys, keysExpiryDates, keysUsages, newPassPhrase, oldPassPhrase); //new Keyring
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masterKey = mKR.getSecretKey();
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PGPPublicKey masterPublicKey = masterKey.getPublicKey();
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int usageId = keysUsages.get(0);
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boolean canSign;
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String mainUserId = userIds.get(0);
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PBESecretKeyDecryptor keyDecryptor = new JcePBESecretKeyDecryptorBuilder().setProvider(
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Constants.BOUNCY_CASTLE_PROVIDER_NAME).build(oldPassPhrase.toCharArray());
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@ -243,10 +374,9 @@ public class PgpKeyOperation {
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updateProgress(R.string.progress_certifying_master_key, 20, 100);
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// TODO: if we are editing a key, keep old certs, don't remake certs we don't have to.
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int user_id_index = 0;
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for (String userId : userIds) {
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if (OriginalIDs[user_id_index]) {
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if (!OriginalIDs.get(user_id_index).equals(userIds.get(user_id_index))) {
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PGPContentSignerBuilder signerBuilder = new JcaPGPContentSignerBuilder(
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masterPublicKey.getAlgorithm(), HashAlgorithmTags.SHA1)
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.setProvider(Constants.BOUNCY_CASTLE_PROVIDER_NAME);
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