Example usage for com.google.common.io BaseEncoding decode

Introduction

In this page you can find the example usage for com.google.common.io BaseEncoding decode.

Prototype

public final byte[] decode(CharSequence chars) 

Source Link

Document

Decodes the specified character sequence, and returns the resulting byte[] .

Usage

From source file:com.spotify.crtauth.utils.TraditionalKeyParser.java

public static RSAPrivateKeySpec parsePemPrivateKey(String pemPrivateKey) throws InvalidKeyException {
    pemPrivateKey = pemPrivateKey.replace("\n", "");
    Matcher matcher = PRIVATE_KEY_PATTERN.matcher(pemPrivateKey);
    if (!matcher.matches()) {
        throw new InvalidKeyException();
    }//w  ww  . ja v  a  2s. c  o  m
    String pemKey = matcher.group(1);
    BaseEncoding encoding = BaseEncoding.base64();
    byte[] derKey = encoding.decode(pemKey);
    List<byte[]> fields;
    try {
        fields = parsePrivateKeyASN1(ByteBuffer.wrap(derKey));
    } catch (InvalidInputException e) {
        throw new InvalidKeyException(e);
    }
    BigInteger mod = new BigInteger(fields.get(1));
    BigInteger exp = new BigInteger(fields.get(3));
    return new RSAPrivateKeySpec(mod, exp);
}

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From source file:com.eucalyptus.tokens.oidc.JsonWebSignatureVerifier.java

private static Pair<JoseHeader, byte[]> decode(@Nonnull final String jsonHeaderB64,
        @Nonnull final String jsonBodyB64, @Nonnull final String signatureB64)
        throws GeneralSecurityException, OidcParseException {
    final String jsonHeader;
    final byte[] signature;
    try {/* w w w.j  a va  2  s  . com*/
        final BaseEncoding b64Url = BaseEncoding.base64Url(); // allow padding?
        jsonHeader = new String(b64Url.decode(jsonHeaderB64), StandardCharsets.UTF_8);
        b64Url.decode(jsonBodyB64); // ensures valid b64url encoding
        signature = b64Url.decode(signatureB64);
    } catch (final IllegalArgumentException e) {
        throw new GeneralSecurityException("Unable to decode", e);
    }
    final JoseHeader header = JoseHeader.parse(jsonHeader);
    if (header.getCrit().map(List::size).getOrElse(0) > 0) {
        throw new GeneralSecurityException("Unsupported critical extension " + header.getCrit());
    }
    return Pair.pair(header, signature);
}

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From source file:com.spotify.sshagentproxy.TraditionalKeyParser.java

public static RSAPrivateKeySpec parsePemPrivateKey(String pemPrivateKey) throws InvalidKeyException {
    pemPrivateKey = pemPrivateKey.replace("\n", "");
    Matcher matcher = PRIVATE_KEY_PATTERN.matcher(pemPrivateKey);
    if (!matcher.matches()) {
        throw new InvalidKeyException();
    }/* www  .ja  va 2s. c o m*/
    String pemKey = matcher.group(1);
    BaseEncoding encoding = BaseEncoding.base64();
    byte[] derKey = encoding.decode(pemKey);
    List<byte[]> fields;
    try {
        fields = parsePrivateKeyASN1(ByteBuffer.wrap(derKey));
    } catch (IllegalArgumentException e) {
        throw new InvalidKeyException(e);
    }
    BigInteger mod = new BigInteger(fields.get(1));
    BigInteger exp = new BigInteger(fields.get(3));
    return new RSAPrivateKeySpec(mod, exp);
}

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From source file:com.spotify.sshagentproxy.TraditionalKeyParser.java

public static RSAPublicKeySpec parsePemPublicKey(String pemPublicKey) throws InvalidKeyException {
    Matcher matcher = PUBLIC_KEY_PATTERN.matcher(pemPublicKey);
    if (!matcher.matches()) {
        throw new InvalidKeyException();
    }//from w ww  . ja  v a  2  s . c  o m
    String pemKey = matcher.group(1);
    BaseEncoding encoding = BaseEncoding.base64();
    byte[] derKey = encoding.decode(pemKey);
    ByteBuffer byteBuffer = ByteBuffer.wrap(derKey);
    byteBuffer.order(ByteOrder.BIG_ENDIAN);
    byte[] typeBytes = readVariableLengthOpaque(byteBuffer);
    byte[] expBytes = readVariableLengthOpaque(byteBuffer);
    byte[] modBytes = readVariableLengthOpaque(byteBuffer);
    if (typeBytes == null || expBytes == null || modBytes == null) {
        throw new InvalidKeyException();
    }
    String type = new String(typeBytes, Charsets.US_ASCII);
    if (!type.equals(PUBLIC_KEY_TYPE)) {
        throw new InvalidKeyException();
    }
    BigInteger exp = new BigInteger(expBytes);
    BigInteger mod = new BigInteger(modBytes);
    return new RSAPublicKeySpec(mod, exp);
}

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From source file:com.facebook.presto.kinesis.decoder.json.Base64ZLibJsonKinesisRowDecoder.java

/**
 * Decodes and decompressed a string of information that's encoded via base 64 and compressed via zlib
 *///from   www .  ja v a 2s  .  c o m
public static byte[] decodeAndUncompress(byte[] data) throws IOException {
    String stringData = new String(data, "UTF-8");
    BaseEncoding decoder = BaseEncoding.base64().withSeparator("\n", 1);
    ByteArrayInputStream compressed = new ByteArrayInputStream(decoder.decode(stringData));
    InflaterInputStream decompressed = new InflaterInputStream(compressed);

    return ByteStreams.toByteArray(decompressed);
}

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From source file:org.apache.gobblin.util.SerializationUtils.java

/**
 * Deserialize a String obtained via {@link #serialize(Serializable)} into an object, using the
 * given {@link BaseEncoding}, which must be the same {@link BaseEncoding} used to serialize the object.
 *
 * @param serialized The serialized String
 * @param clazz The class the deserialized object should be cast to.
 * @param enc The {@link BaseEncoding} used to decode the String.
 * @return The deserialized object/*from ww  w .  j a  v a  2  s.c o  m*/
 * @throws IOException if it fails to deserialize the object
 */
public static <T extends Serializable> T deserialize(String serialized, Class<T> clazz, BaseEncoding enc)
        throws IOException {
    return deserializeFromBytes(enc.decode(serialized), clazz);
}

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From source file:org.tc33.jenigma.test.CookieEncrypt.java

public static String customDencrypt(String encrypted, String password) {

    if (password.length() != 8) {
        return null;
    }/*from w ww. ja  v  a 2 s. co  m*/
    BaseEncoding b64 = BaseEncoding.base64Url().omitPadding();
    byte[] encryptedBytes = b64.decode(encrypted);

    //System.out.println(Hex.toHexString(encryptedBytes));

    int encryptedLength = encryptedBytes.length;

    int blockSize = 4;
    if (encryptedLength % blockSize != 0) {
        return null;
    }

    int salt = 385751695;
    byte[] key1 = new byte[4];
    System.arraycopy(password.getBytes(), 0, key1, 0, 4);
    key1 = int2byte(byte2int(key1) ^ salt++);
    byte[] key2 = new byte[4];
    System.arraycopy(password.getBytes(), 4, key2, 0, 4);
    key2 = int2byte(byte2int(key2) ^ salt++);

    key1[0] = (byte) (key1[0] ^ key2[0] ^ key2[1]);
    key1[1] = (byte) (key1[1] ^ key2[0] ^ key2[2]);
    key1[2] = (byte) (key1[2] ^ key2[2] ^ key2[3]);
    key1[3] = (byte) (key1[3] ^ key2[1] ^ key2[3]);

    //System.out.println(Hex.toHexString(key1));
    //System.out.println(Hex.toHexString(key2));

    int k = 0;
    byte[] output = new byte[encryptedLength];
    while (k < encryptedLength / 4) {
        if (k % 2 == 0) {
            byte[] tmp1 = new byte[4];
            for (int j = 0; j < 4; j++) {
                tmp1[j] = (byte) (key1[j] ^ encryptedBytes[4 * k + j]);
            }
            System.arraycopy(tmp1, 0, output, 4 * k, 4);
        } else {
            byte[] tmp2 = new byte[4];
            for (int j = 0; j < 4; j++) {
                tmp2[j] = (byte) (key1[j] ^ key2[j] ^ encryptedBytes[4 * k + j]);
            }
            System.arraycopy(tmp2, 0, output, 4 * k, 4);
        }
        k++;
    }

    for (int i = 0; i < encryptedLength; i++) {
        output[i] = bswap(output[i]);

        if (i % 2 == 0) {
            output[i] ^= i;
        } else {
            output[i] ^= (encryptedLength - i);
        }

    }

    return new String(output);

}

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From source file:org.jooby.internal.ssl.PemReader.java

static List<ByteBuffer> readCertificates(final File file) throws CertificateException, IOException {
    String content = Files.toString(file, StandardCharsets.US_ASCII);

    BaseEncoding base64 = base64();
    List<ByteBuffer> certs = new ArrayList<ByteBuffer>();
    Matcher m = CERT_PATTERN.matcher(content);
    int start = 0;
    while (m.find(start)) {
        ByteBuffer buffer = ByteBuffer.wrap(base64.decode(m.group(1)));
        certs.add(buffer);//  ww  w  .java 2s  . c  om

        start = m.end();
    }

    if (certs.isEmpty()) {
        throw new CertificateException("found no certificates: " + file);
    }

    return certs;
}

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From source file:org.opendaylight.controller.netconf.confignetconfconnector.mapping.attributes.fromxml.SimpleBinaryAttributeReadingStrategy.java

@Override
protected Object postprocessParsedValue(String textContent) {
    BaseEncoding en = BaseEncoding.base64();
    byte[] decode = en.decode(textContent);
    List<String> parsed = Lists.newArrayListWithCapacity(decode.length);
    for (byte b : decode) {
        parsed.add(Byte.toString(b));
    }//w  w  w .  j av  a  2 s.c  o  m
    return parsed;
}

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From source file:com.google.cloud.storage.spi.DefaultStorageRpc.java

private static void setEncryptionHeaders(HttpHeaders headers, String headerPrefix, Map<Option, ?> options) {
    String key = CUSTOMER_SUPPLIED_KEY.getString(options);
    if (key != null) {
        BaseEncoding base64 = BaseEncoding.base64();
        HashFunction hashFunction = Hashing.sha256();
        headers.set(headerPrefix + "algorithm", "AES256");
        headers.set(headerPrefix + "key", key);
        headers.set(headerPrefix + "key-sha256",
                base64.encode(hashFunction.hashBytes(base64.decode(key)).asBytes()));
    }//w w  w  .  j av a  2s.  co m
}

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