Example usage for java.util Base64 getDecoder

Introduction

In this page you can find the example usage for java.util Base64 getDecoder.

Prototype

public static Decoder getDecoder() 

Source Link

Document

Returns a Decoder that decodes using the Basic type base64 encoding scheme.

Usage

From source file:org.wso2.sample.identity.oauth2.IDTokenDecrypterServlet.java

/**
 * Decrypt the id token using the private key.
 *
 * @param JWE              id token to be decrypted
 * @param privateKeyString client private key as a string
 * @return decrypted id token as an EncryptedJWT object
 * @throws NoSuchAlgorithmException//from w w  w  .  j  a va  2 s . co  m
 * @throws InvalidKeySpecException
 * @throws ParseException
 * @throws JOSEException
 * @throws IllegalArgumentException
 */
private EncryptedJWT decryptJWE(String JWE, String privateKeyString) throws NoSuchAlgorithmException,
        InvalidKeySpecException, ParseException, JOSEException, IllegalArgumentException {

    KeyFactory kf = KeyFactory.getInstance("RSA");
    // Remove EOF characters from key string and generate key object.
    privateKeyString = privateKeyString.replace("\n", "").replace("\r", "");
    PKCS8EncodedKeySpec keySpecPKCS8 = new PKCS8EncodedKeySpec(Base64.getDecoder().decode(privateKeyString));
    PrivateKey privateKey = kf.generatePrivate(keySpecPKCS8);

    EncryptedJWT jwt = EncryptedJWT.parse(JWE);

    // Create a decrypter with the specified private RSA key.
    RSADecrypter decrypter = new RSADecrypter((RSAPrivateKey) privateKey);

    jwt.decrypt(decrypter);

    return jwt;
}

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From source file:com.thoughtworks.go.server.util.EncryptionHelperTest.java

@Test
void shouldEncryptAndDecryptChunkUsingAESandRSA() throws Exception {
    String chunk = StringUtils.repeat("Encryption is awesome!", 150);

    File privateKeyFile = new File(
            getClass().getClassLoader().getResource("rsa/subordinate-private.pem").getFile());
    File publicKeyFile = new File(
            getClass().getClassLoader().getResource("rsa/subordinate-public.pem").getFile());

    SecretKey secretKey = EncryptionHelper.generateAESKey();

    String aesEncryptedData = EncryptionHelper.encryptUsingAES(secretKey, chunk);
    String rsaEncryptedAESKey = EncryptionHelper.encryptUsingRSA(
            Base64.getEncoder().encodeToString(secretKey.getEncoded()),
            FileUtils.readFileToString(publicKeyFile, "utf8"));

    String secretKeyContent = EncryptionHelper.decryptUsingRSA(rsaEncryptedAESKey,
            FileUtils.readFileToString(privateKeyFile, "utf8"));
    byte[] decryptedKey = Base64.getDecoder().decode(secretKeyContent);
    secretKey = new SecretKeySpec(decryptedKey, 0, decryptedKey.length, "AES");

    String decryptedData = EncryptionHelper.decryptUsingAES(secretKey, aesEncryptedData);

    assertThat(chunk, is(decryptedData));
}

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From source file:org.wso2.carbon.apimgt.impl.reportgen.ReportGenerator.java

private String getMetaCount(String origCount) {
    String count = origCount;//from   w w  w  .  j a va  2  s  .c  o m
    Cipher cipher;

    try {
        cipher = Cipher.getInstance(MGW_ALGO);
        SecretKeySpec key = new SecretKeySpec(Base64.getDecoder().decode(MGW_KEY), "AES");
        cipher.init(Cipher.ENCRYPT_MODE, key);
        byte[] bytes = cipher.doFinal(origCount.getBytes());
        count = new String(Base64.getEncoder().encode(bytes));
    } catch (NoSuchAlgorithmException | InvalidKeyException | NoSuchPaddingException | BadPaddingException
            | IllegalBlockSizeException e) {
        log.info("Couldn't generate the value for Summary report meta field.", e);
    }

    return count;
}

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From source file:ddf.catalog.transformer.output.rtf.BaseTestConfiguration.java

Attribute createMediaAttribute() throws IOException {
    Attribute mockAttribute = mock(Attribute.class);
    byte[] image = Base64.getDecoder().decode(getReferenceImageString());
    when(mockAttribute.getValue()).thenReturn(image);

    return mockAttribute;
}

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From source file:com.github.horrorho.inflatabledonkey.cloud.escrow.EscrowedKeys.java

static ServiceKeySet escrowedKeys(NSDictionary record, ServiceKeySet backupBagPassword) {
    String metadataBase64 = PLists.getAs(record, "metadata", NSString.class).getContent();
    byte[] metadata = Base64.getDecoder().decode(metadataBase64);

    byte[] data = ProtectedRecord.unlockData(metadata, backupBagPassword::key);

    return DERUtils.parse(data, KeySet::new).flatMap(ServiceKeySetBuilder::build)
            .orElseThrow(() -> new IllegalArgumentException("failed to create escrowed key set"));
}

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From source file:com.tenduke.example.scribeoauth.oauth2.IdTokenOauth20Service.java

/**
 * Gets Id token using the result obtained from a {@link #getAccessToken(org.scribe.model.Token, org.scribe.model.Verifier)}
 * call made earlier.// w  ww  . j  av a 2  s  . c  o m
 * @return Id token (Open Id scope) read from access token response that was cached in call to
 *         {@link #getAccessToken(org.scribe.model.Token, org.scribe.model.Verifier)}.
 */
public JSONObject getIdToken() {
    //
    if (accessTokenResponse == null) {
        //
        throw new IllegalStateException(
                "Access token request not made yet, can't extract OpenId scope Id token");
    }
    //
    JSONObject retValue = null;
    //
    JSONObject atResponse = new JSONObject(accessTokenResponse);
    String idToken = atResponse.getString("id_token");
    byte[] idContent = null;
    if (idToken != null && idToken.indexOf(".") > 0) {
        //
        String[] jwtParts = idToken.split("\\.");
        String jwtBody = jwtParts[1];
        idContent = Base64.getDecoder().decode(jwtBody);
    }
    //
    if (idContent != null) {
        //
        try {
            //
            retValue = new JSONObject(new String(idContent, "UTF-8"));
        } catch (UnsupportedEncodingException ex) {
            //
            // yes, bad style here. "Real" applications should not suppress exceptions like this
        }
    }
    //
    return retValue;
}

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From source file:io.gomint.server.network.packet.PacketLogin.java

private void decodeBase64JSON(String data) throws ParseException {
    try {//from   www . j av a2 s .  c o m
        // Get validation key
        Key key = getPublicKey(Base64.getDecoder().decode(this.validationKey));
        if (key == null) {
            return;
        }

        // Check JWT
        Claims claims = Jwts.parser().setSigningKey(key).parseClaimsJws(data).getBody();

        // Only certification authory is allowed to set new validation keys
        Boolean certificateAuthority = (Boolean) claims.get("certificateAuthority");
        if (certificateAuthority != null && certificateAuthority) {
            this.validationKey = (String) claims.get("identityPublicKey");

            // We have to blindy trust this auth when its the first (they send the root cert in 0.15.4+)
            if (this.firstCertAuth && this.validationKey.equals(MOJANG_PUBLIC)) {
                this.firstCertAuth = false;
                return;
            }
        }

        // Invalid duration frame ?
        if (claims.getExpiration().getTime() - claims.getIssuedAt().getTime() != TimeUnit.DAYS.toMillis(1)) {
            System.out.println("Certification lifetime is not 1 day.");
            this.valid = false;
        }

        // Invalid Issuer ?
        if (!"RealmsAuthorization".equals(claims.getIssuer())) {
            System.out.println("Certification issuer is wrong.");
            this.valid = false;
        }

        // Check for extra data
        Map<String, Object> extraData = (Map<String, Object>) claims.get("extraData");
        if (extraData != null) {
            // For a valid user we need a XUID (xbox live id)
            String xboxId = (String) extraData.get("XUID");
            if (xboxId == null) {
                System.out.println("Did not find any xbox live id");
                this.valid = false;
            } else {
                this.xboxId = Long.parseLong(xboxId);
            }

            this.userName = (String) extraData.get("displayName");
            this.uuid = UUID.fromString((String) extraData.get("identity"));
        }
    } catch (Exception e) {
        // This normally comes when the user is not logged in into xbox live since the payload only sends
        // the self signed cert without a certifaction authory
        this.valid = false;

        // Be able to "parse" the payload
        String[] tempBase64 = data.split("\\.");

        String payload = new String(Base64.getDecoder().decode(tempBase64[1]));
        JSONObject chainData = (JSONObject) new JSONParser().parse(payload);
        if (chainData.containsKey("extraData")) {
            JSONObject extraData = (JSONObject) chainData.get("extraData");
            this.userName = (String) extraData.get("displayName");
            this.uuid = UUID.fromString((String) extraData.get("identity"));
        }
    }
}

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From source file:com.bosch.iot.things.tutorial.ui.ProxyServlet.java

@Override
protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    String auth = req.getHeader("Authorization");
    if (auth == null) {
        resp.setHeader("WWW-Authenticate", "BASIC realm=\"Proxy for Bosch IoT Things\"");
        resp.sendError(HttpServletResponse.SC_UNAUTHORIZED);
        return;//from  w ww.  ja  v a2  s.  c  o  m
    }

    try {
        long time = System.currentTimeMillis();
        CloseableHttpClient c = getHttpClient();

        String targetUrl = URL_PREFIX + req.getPathInfo()
                + (req.getQueryString() != null ? ("?" + req.getQueryString()) : "");
        BasicHttpRequest targetReq = new BasicHttpRequest(req.getMethod(), targetUrl);

        String user = "";
        if (auth.toUpperCase().startsWith("BASIC ")) {
            String userpassDecoded = new String(Base64.getDecoder().decode(auth.substring("BASIC ".length())));
            user = userpassDecoded.substring(0, userpassDecoded.indexOf(':'));
            String pass = userpassDecoded.substring(userpassDecoded.indexOf(':') + 1);
            UsernamePasswordCredentials creds = new UsernamePasswordCredentials(user, pass);
            targetReq.addHeader(new BasicScheme().authenticate(creds, targetReq, null));
        }

        targetReq.addHeader("x-cr-api-token", req.getHeader("x-cr-api-token"));
        CloseableHttpResponse targetResp = c.execute(targetHost, targetReq);

        System.out.println("Request: " + targetHost + targetUrl + ", user " + user + " -> "
                + (System.currentTimeMillis() - time) + " msec: " + targetResp.getStatusLine());

        resp.setStatus(targetResp.getStatusLine().getStatusCode());
        targetResp.getEntity().writeTo(resp.getOutputStream());
    } catch (IOException | AuthenticationException ex) {
        throw new RuntimeException(ex);
    }
}

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From source file:org.egov.mrs.domain.entity.RegistrationCertificate.java

public static InputStream decodePhoto(final String encodedString) throws IOException {

    final OutputStream os = new ByteArrayOutputStream();
    os.write(0xFF);//from w  w w  .j a  v  a  2  s . c  o m
    os.write(216);
    final byte[] orginalFileData = Base64.getDecoder().decode(encodedString);
    final byte[] fileData = new byte[orginalFileData.length + 2];
    fileData[0] = (byte) 0xFF;
    fileData[1] = (byte) 216;
    int j = 2;

    for (int i = 0; i < orginalFileData.length - 1; i++)
        fileData[j++] = orginalFileData[i];

    return new ByteArrayInputStream(fileData);

}

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From source file:org.flowable.cmmn.engine.impl.history.async.json.transformer.VariableCreatedHistoryJsonTransformer.java

@Override
public void transformJson(HistoryJobEntity job, ObjectNode historicalData, CommandContext commandContext) {
    HistoricVariableService historicVariableService = CommandContextUtil.getHistoricVariableService();
    HistoricVariableInstanceEntity historicVariableInstanceEntity = historicVariableService
            .createHistoricVariableInstance();
    historicVariableInstanceEntity.setId(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_ID));
    historicVariableInstanceEntity//from   www .j a va 2 s .  com
            .setScopeId(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_SCOPE_ID));
    historicVariableInstanceEntity
            .setSubScopeId(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_SUB_SCOPE_ID));
    historicVariableInstanceEntity
            .setScopeType(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_SCOPE_TYPE));
    historicVariableInstanceEntity
            .setTaskId(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_TASK_ID));
    historicVariableInstanceEntity
            .setExecutionId(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_EXECUTION_ID));
    historicVariableInstanceEntity.setProcessInstanceId(
            getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_PROCESS_INSTANCE_ID));
    historicVariableInstanceEntity
            .setRevision(getIntegerFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_REVISION));
    historicVariableInstanceEntity
            .setName(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_NAME));

    VariableTypes variableTypes = CommandContextUtil.getCmmnEngineConfiguration().getVariableTypes();
    VariableType variableType = variableTypes
            .getVariableType(getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_VARIABLE_TYPE));

    historicVariableInstanceEntity.setVariableType(variableType);

    historicVariableInstanceEntity.setTextValue(
            getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_VARIABLE_TEXT_VALUE));
    historicVariableInstanceEntity.setTextValue2(
            getStringFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_VARIABLE_TEXT_VALUE2));
    historicVariableInstanceEntity.setDoubleValue(
            getDoubleFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_VARIABLE_DOUBLE_VALUE));
    historicVariableInstanceEntity
            .setLongValue(getLongFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_VARIABLE_LONG_VALUE));

    String variableBytes = getStringFromJson(historicalData,
            CmmnAsyncHistoryConstants.FIELD_VARIABLE_BYTES_VALUE);
    if (StringUtils.isNotEmpty(variableBytes)) {
        historicVariableInstanceEntity.setBytes(Base64.getDecoder().decode(variableBytes));
    }

    Date time = getDateFromJson(historicalData, CmmnAsyncHistoryConstants.FIELD_CREATE_TIME);
    historicVariableInstanceEntity.setCreateTime(time);
    historicVariableInstanceEntity.setLastUpdatedTime(time);

    historicVariableService.insertHistoricVariableInstance(historicVariableInstanceEntity);
}

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