Examples with MessageDigest java.security.MessageDigest used on opensource projects

Example 61 with MessageDigest

use of java.security.MessageDigest in project gitblit by gitblit.

the class PluginManager method download.

/**
	 * Downloads a file with optional checksum verification.
	 *
	 * @param url
	 * @param verifyChecksum
	 * @return
	 * @throws IOException
	 */
protected File download(String url, boolean verifyChecksum) throws IOException {
    File file = downloadFile(url);
    if (!verifyChecksum) {
        return file;
    }
    File sha1File = null;
    try {
        sha1File = downloadFile(url + ".sha1");
    } catch (IOException e) {
    }
    File md5File = null;
    try {
        md5File = downloadFile(url + ".md5");
    } catch (IOException e) {
    }
    if (sha1File == null && md5File == null) {
        throw new IOException("Missing SHA1 and MD5 checksums for " + url);
    }
    String expected;
    MessageDigest md = null;
    if (sha1File != null && sha1File.exists()) {
        // prefer SHA1 to MD5
        expected = FileUtils.readContent(sha1File, "\n").split(" ")[0].trim();
        try {
            md = MessageDigest.getInstance("SHA-1");
        } catch (NoSuchAlgorithmException e) {
            logger.error(null, e);
        }
    } else {
        expected = FileUtils.readContent(md5File, "\n").split(" ")[0].trim();
        try {
            md = MessageDigest.getInstance("MD5");
        } catch (Exception e) {
            logger.error(null, e);
        }
    }
    // calculate the checksum
    FileInputStream is = null;
    try {
        is = new FileInputStream(file);
        DigestInputStream dis = new DigestInputStream(is, md);
        byte[] buffer = new byte[1024];
        while ((dis.read(buffer)) > -1) {
        // read
        }
        dis.close();
        byte[] digest = md.digest();
        String calculated = StringUtils.toHex(digest).trim();
        if (!expected.equals(calculated)) {
            String msg = String.format("Invalid checksum for %s\nAlgorithm:  %s\nExpected:   %s\nCalculated: %s", file.getAbsolutePath(), md.getAlgorithm(), expected, calculated);
            file.delete();
            throw new IOException(msg);
        }
    } finally {
        if (is != null) {
            is.close();
        }
    }
    return file;
}

Example 62 with MessageDigest

use of java.security.MessageDigest in project gitblit by gitblit.

the class TicketModel method getSHA1.

/**
	 * Calculates the SHA1 of the byte array.
	 *
	 * @param bytes
	 * @return sha1 of the byte array
	 */
static String getSHA1(byte[] bytes) {
    try {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        md.update(bytes, 0, bytes.length);
        byte[] digest = md.digest();
        return toHex(digest);
    } catch (NoSuchAlgorithmException t) {
        throw new RuntimeException(t);
    }
}

Example 63 with MessageDigest

use of java.security.MessageDigest in project fresco by facebook.

the class SecureHashUtil method makeSHA1HashBase64.

public static String makeSHA1HashBase64(byte[] bytes) {
    try {
        MessageDigest md = MessageDigest.getInstance("SHA-1");
        md.update(bytes, 0, bytes.length);
        byte[] sha1hash = md.digest();
        return Base64.encodeToString(sha1hash, Base64.URL_SAFE | Base64.NO_PADDING | Base64.NO_WRAP);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
}

Example 64 with MessageDigest

use of java.security.MessageDigest in project fqrouter by fqrouter.

the class IOUtils method copy.

public static String copy(InputStream inputStream, OutputStream outputStream, ChunkCopied callback) throws Exception {
    MessageDigest md5 = MessageDigest.getInstance("MD5");
    byte[] buffer = new byte[1024 * 32];
    int length;
    while ((length = inputStream.read(buffer)) > 0) {
        md5.update(buffer, 0, length);
        if (null != outputStream) {
            outputStream.write(buffer, 0, length);
        }
        if (null != callback) {
            callback.onChunkCopied(buffer, length);
        }
    }
    return new BigInteger(1, md5.digest()).toString(16);
}

Example 65 with MessageDigest

use of java.security.MessageDigest in project stetho by facebook.

the class WebSocketHandler method generateServerKey.

private static String generateServerKey(String clientKey) {
    try {
        String serverKey = clientKey + SERVER_KEY_GUID;
        MessageDigest sha1 = MessageDigest.getInstance("SHA-1");
        sha1.update(Utf8Charset.encodeUTF8(serverKey));
        return Base64.encodeToString(sha1.digest(), Base64.NO_WRAP);
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException(e);
    }
}