Method toHex

security/src/main/java/pro/tools/security/ToolPBE2.java:119–128

二进制字符串转十六进制字符串 @param array the byte array to ToolJson @return a length 2 character string encoding the byte array

(byte[] array)

     * @return a length*2 character string encoding the byte array
     */
    private static String toHex(byte[] array) {
        BigInteger bi = new BigInteger(1, array);
        String hex = bi.toString(16);
        int paddingLength = (array.length * 2) - hex.length();
        if (paddingLength > 0) {
            return String.format("%0" + paddingLength + "d", 0) + hex;
        } else {
            return hex;
        }
    }
}