Examples with TextSecurePreKeyStore org.thoughtcrime.securesms.crypto.storage.TextSecurePreKeyStore used on opensource projects

Example 1 with TextSecurePreKeyStore

use of org.thoughtcrime.securesms.crypto.storage.TextSecurePreKeyStore in project Signal-Android by WhisperSystems.

the class PreKeyUtil method generateSignedPreKey.

public static SignedPreKeyRecord generateSignedPreKey(Context context, IdentityKeyPair identityKeyPair, boolean active) {
    try {
        SignedPreKeyStore signedPreKeyStore = new TextSecurePreKeyStore(context);
        int signedPreKeyId = getNextSignedPreKeyId(context);
        ECKeyPair keyPair = Curve.generateKeyPair();
        byte[] signature = Curve.calculateSignature(identityKeyPair.getPrivateKey(), keyPair.getPublicKey().serialize());
        SignedPreKeyRecord record = new SignedPreKeyRecord(signedPreKeyId, System.currentTimeMillis(), keyPair, signature);
        signedPreKeyStore.storeSignedPreKey(signedPreKeyId, record);
        setNextSignedPreKeyId(context, (signedPreKeyId + 1) % Medium.MAX_VALUE);
        if (active) {
            setActiveSignedPreKeyId(context, signedPreKeyId);
        }
        return record;
    } catch (InvalidKeyException e) {
        throw new AssertionError(e);
    }
}

Example 2 with TextSecurePreKeyStore

use of org.thoughtcrime.securesms.crypto.storage.TextSecurePreKeyStore in project Signal-Android by WhisperSystems.

the class PreKeyUtil method generatePreKeys.

public static List<PreKeyRecord> generatePreKeys(Context context) {
    PreKeyStore preKeyStore = new TextSecurePreKeyStore(context);
    List<PreKeyRecord> records = new LinkedList<>();
    int preKeyIdOffset = getNextPreKeyId(context);
    for (int i = 0; i < BATCH_SIZE; i++) {
        int preKeyId = (preKeyIdOffset + i) % Medium.MAX_VALUE;
        ECKeyPair keyPair = Curve.generateKeyPair();
        PreKeyRecord record = new PreKeyRecord(preKeyId, keyPair);
        preKeyStore.storePreKey(preKeyId, record);
        records.add(record);
    }
    setNextPreKeyId(context, (preKeyIdOffset + BATCH_SIZE + 1) % Medium.MAX_VALUE);
    return records;
}

Example 3 with TextSecurePreKeyStore

use of org.thoughtcrime.securesms.crypto.storage.TextSecurePreKeyStore in project Signal-Android by WhisperSystems.

the class PreKeyUtil method generateLastResortKey.

public static PreKeyRecord generateLastResortKey(Context context) {
    PreKeyStore preKeyStore = new TextSecurePreKeyStore(context);
    if (preKeyStore.containsPreKey(Medium.MAX_VALUE)) {
        try {
            return preKeyStore.loadPreKey(Medium.MAX_VALUE);
        } catch (InvalidKeyIdException e) {
            Log.w("PreKeyUtil", e);
            preKeyStore.removePreKey(Medium.MAX_VALUE);
        }
    }
    ECKeyPair keyPair = Curve.generateKeyPair();
    PreKeyRecord record = new PreKeyRecord(Medium.MAX_VALUE, keyPair);
    preKeyStore.storePreKey(Medium.MAX_VALUE, record);
    return record;
}