Examples with KeyStoreException android.security.KeyStoreException used on opensource projects

Example 26 with KeyStoreException

use of android.security.KeyStoreException in project android_frameworks_base by ResurrectionRemix.

the class AndroidKeyStoreSignatureSpiBase method engineVerify.

@Override
protected final boolean engineVerify(byte[] signature) throws SignatureException {
    if (mCachedException != null) {
        throw new SignatureException(mCachedException);
    }
    try {
        ensureKeystoreOperationInitialized();
    } catch (InvalidKeyException e) {
        throw new SignatureException(e);
    }
    boolean verified;
    try {
        byte[] output = mMessageStreamer.doFinal(EmptyArray.BYTE, 0, 0, signature, // no additional entropy needed -- verification is deterministic
        null);
        if (output.length != 0) {
            throw new ProviderException("Signature verification unexpected produced output: " + output.length + " bytes");
        }
        verified = true;
    } catch (KeyStoreException e) {
        switch(e.getErrorCode()) {
            case KeymasterDefs.KM_ERROR_VERIFICATION_FAILED:
                verified = false;
                break;
            default:
                throw new SignatureException(e);
        }
    }
    resetWhilePreservingInitState();
    return verified;
}

Example 27 with KeyStoreException

use of android.security.KeyStoreException in project android_frameworks_base by ResurrectionRemix.

the class AndroidKeyStoreSignatureSpiBase method engineSign.

@Override
protected final byte[] engineSign() throws SignatureException {
    if (mCachedException != null) {
        throw new SignatureException(mCachedException);
    }
    byte[] signature;
    try {
        ensureKeystoreOperationInitialized();
        byte[] additionalEntropy = KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(appRandom, getAdditionalEntropyAmountForSign());
        signature = mMessageStreamer.doFinal(EmptyArray.BYTE, 0, 0, // no signature provided -- it'll be generated by this invocation
        null, additionalEntropy);
    } catch (InvalidKeyException | KeyStoreException e) {
        throw new SignatureException(e);
    }
    resetWhilePreservingInitState();
    return signature;
}

Example 28 with KeyStoreException

use of android.security.KeyStoreException in project android_frameworks_base by crdroidandroid.

the class AndroidKeyStoreSignatureSpiBase method engineVerify.

@Override
protected final boolean engineVerify(byte[] signature) throws SignatureException {
    if (mCachedException != null) {
        throw new SignatureException(mCachedException);
    }
    try {
        ensureKeystoreOperationInitialized();
    } catch (InvalidKeyException e) {
        throw new SignatureException(e);
    }
    boolean verified;
    try {
        byte[] output = mMessageStreamer.doFinal(EmptyArray.BYTE, 0, 0, signature, // no additional entropy needed -- verification is deterministic
        null);
        if (output.length != 0) {
            throw new ProviderException("Signature verification unexpected produced output: " + output.length + " bytes");
        }
        verified = true;
    } catch (KeyStoreException e) {
        switch(e.getErrorCode()) {
            case KeymasterDefs.KM_ERROR_VERIFICATION_FAILED:
                verified = false;
                break;
            default:
                throw new SignatureException(e);
        }
    }
    resetWhilePreservingInitState();
    return verified;
}

Example 29 with KeyStoreException

use of android.security.KeyStoreException in project android_frameworks_base by crdroidandroid.

the class AndroidKeyStoreSignatureSpiBase method engineSign.

@Override
protected final byte[] engineSign() throws SignatureException {
    if (mCachedException != null) {
        throw new SignatureException(mCachedException);
    }
    byte[] signature;
    try {
        ensureKeystoreOperationInitialized();
        byte[] additionalEntropy = KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(appRandom, getAdditionalEntropyAmountForSign());
        signature = mMessageStreamer.doFinal(EmptyArray.BYTE, 0, 0, // no signature provided -- it'll be generated by this invocation
        null, additionalEntropy);
    } catch (InvalidKeyException | KeyStoreException e) {
        throw new SignatureException(e);
    }
    resetWhilePreservingInitState();
    return signature;
}

Example 30 with KeyStoreException

use of android.security.KeyStoreException in project android_frameworks_base by crdroidandroid.

the class KeyStoreCryptoOperationChunkedStreamer method flush.

public byte[] flush() throws KeyStoreException {
    if (mBufferedLength <= 0) {
        return EmptyArray.BYTE;
    }
    // Keep invoking the update operation with remaining buffered data until either all of the
    // buffered data is consumed or until update fails to consume anything.
    ByteArrayOutputStream bufferedOutput = null;
    while (mBufferedLength > 0) {
        byte[] chunk = ArrayUtils.subarray(mBuffered, mBufferedOffset, mBufferedLength);
        OperationResult opResult = mKeyStoreStream.update(chunk);
        if (opResult == null) {
            throw new KeyStoreConnectException();
        } else if (opResult.resultCode != KeyStore.NO_ERROR) {
            throw KeyStore.getKeyStoreException(opResult.resultCode);
        }
        if (opResult.inputConsumed <= 0) {
            // Nothing was consumed. Break out of the loop to avoid an infinite loop.
            break;
        }
        if (opResult.inputConsumed >= chunk.length) {
            // All of the input was consumed
            mBuffered = EmptyArray.BYTE;
            mBufferedOffset = 0;
            mBufferedLength = 0;
        } else {
            // Some of the input was not consumed
            mBuffered = chunk;
            mBufferedOffset = opResult.inputConsumed;
            mBufferedLength = chunk.length - opResult.inputConsumed;
        }
        if (opResult.inputConsumed > chunk.length) {
            throw new KeyStoreException(KeymasterDefs.KM_ERROR_UNKNOWN_ERROR, "Keystore consumed more input than provided. Provided: " + chunk.length + ", consumed: " + opResult.inputConsumed);
        }
        if ((opResult.output != null) && (opResult.output.length > 0)) {
            // Some output was produced by this update operation
            if (bufferedOutput == null) {
                // No output buffered yet.
                if (mBufferedLength == 0) {
                    // No more output will be produced by this flush operation
                    mProducedOutputSizeBytes += opResult.output.length;
                    return opResult.output;
                } else {
                    // More output might be produced by this flush operation -- buffer output.
                    bufferedOutput = new ByteArrayOutputStream();
                }
            }
            // Buffer the output from this update operation
            try {
                bufferedOutput.write(opResult.output);
            } catch (IOException e) {
                throw new ProviderException("Failed to buffer output", e);
            }
        }
    }
    if (mBufferedLength > 0) {
        throw new KeyStoreException(KeymasterDefs.KM_ERROR_INVALID_INPUT_LENGTH, "Keystore failed to consume last " + ((mBufferedLength != 1) ? (mBufferedLength + " bytes") : "byte") + " of input");
    }
    byte[] result = (bufferedOutput != null) ? bufferedOutput.toByteArray() : EmptyArray.BYTE;
    mProducedOutputSizeBytes += result.length;
    return result;
}