Examples with CipherInputStream javax.crypto.CipherInputStream used on opensource projects

Example 56 with CipherInputStream

use of javax.crypto.CipherInputStream in project tika by apache.

the class EncryptedPrescriptionDetector method detect.

public MediaType detect(InputStream stream, Metadata metadata) throws IOException {
    Key key = Pharmacy.getKey();
    MediaType type = MediaType.OCTET_STREAM;
    try (InputStream lookahead = new LookaheadInputStream(stream, 1024)) {
        Cipher cipher = Cipher.getInstance("RSA");
        cipher.init(Cipher.DECRYPT_MODE, key);
        InputStream decrypted = new CipherInputStream(lookahead, cipher);
        QName name = new XmlRootExtractor().extractRootElement(decrypted);
        if (name != null && "http://example.com/xpd".equals(name.getNamespaceURI()) && "prescription".equals(name.getLocalPart())) {
            type = MediaType.application("x-prescription");
        }
    } catch (GeneralSecurityException e) {
    // unable to decrypt, fall through
    }
    return type;
}

Example 57 with CipherInputStream

use of javax.crypto.CipherInputStream in project cxf by apache.

the class CachedOutputStream method getInputStream.

public InputStream getInputStream() throws IOException {
    flush();
    if (inmem) {
        if (currentStream instanceof LoadingByteArrayOutputStream) {
            return ((LoadingByteArrayOutputStream) currentStream).createInputStream();
        } else if (currentStream instanceof ByteArrayOutputStream) {
            return new ByteArrayInputStream(((ByteArrayOutputStream) currentStream).toByteArray());
        } else {
            return null;
        }
    }
    try {
        InputStream fileInputStream = new TransferableFileInputStream(tempFile);
        streamList.add(fileInputStream);
        if (cipherTransformation != null) {
            fileInputStream = new CipherInputStream(fileInputStream, ciphers.getDecryptor()) {

                boolean closed;

                public void close() throws IOException {
                    if (!closed) {
                        super.close();
                        closed = true;
                    }
                }
            };
        }
        return fileInputStream;
    } catch (FileNotFoundException e) {
        throw new IOException("Cached file was deleted, " + e.toString());
    }
}

Example 58 with CipherInputStream

use of javax.crypto.CipherInputStream in project apex-malhar by apache.

the class AbstractFileOutputOperatorTest method checkCompressedFile.

private void checkCompressedFile(File file, List<Long> offsets, int startVal, int totalWindows, int totalRecords, SecretKey secretKey, byte[] iv) throws IOException {
    FileInputStream fis;
    InputStream gss = null;
    GZIPInputStream gis = null;
    BufferedReader br = null;
    Cipher cipher = null;
    if (secretKey != null) {
        try {
            cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            IvParameterSpec ivps = new IvParameterSpec(iv);
            cipher.init(Cipher.DECRYPT_MODE, secretKey, ivps);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }
    int numWindows = 0;
    try {
        fis = new FileInputStream(file);
        // fis.skip(startOffset);
        gss = fis;
        if (secretKey != null) {
            try {
                /*
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            IvParameterSpec ivps = new IvParameterSpec(iv);
            cipher.init(Cipher.DECRYPT_MODE, secretKey, ivps);
            */
                gss = new CipherInputStream(fis, cipher);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
        long startOffset = 0;
        for (long offset : offsets) {
            // Skip initial case in case file is not yet created
            if (offset == 0) {
                continue;
            }
            long limit = offset - startOffset;
            LimitInputStream lis = new LimitInputStream(gss, limit);
            // gis = new GZIPInputStream(fis);
            gis = new GZIPInputStream(lis);
            br = new BufferedReader(new InputStreamReader(gis));
            // br = new BufferedReader(new InputStreamReader(gss));
            String eline = "" + (startVal + numWindows * 2);
            int count = 0;
            String line;
            while ((line = br.readLine()) != null) {
                Assert.assertEquals("File line", eline, line);
                ++count;
                if ((count % totalRecords) == 0) {
                    ++numWindows;
                    eline = "" + (startVal + numWindows * 2);
                }
            }
            startOffset = offset;
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (br != null) {
            br.close();
        } else {
            if (gis != null) {
                gis.close();
            } else if (gss != null) {
                gss.close();
            }
        }
    }
    Assert.assertEquals("Total", totalWindows, numWindows);
}