Android识别NFC芯片制造商的方法

如何识别？

通过nfc模块的serial number即uid，用户访问权限为r只读，每颗nfc芯片独有序列号（uid），在出厂时写入，用户不能改写。

android如何实现？

通过intent获取uid

    /**
     * 读取nfcuid 返回string类型大写的uid
     * 
     * 这个测试顺便加上的，下面用不到，做个笔记~~
     * 
     */
    public static string readuid(intent intent) throws unsupportedencodingexception {
        tag tagfromintent = intent.getparcelableextra(nfcadapter.extra_tag);
        byte[] uid = tagfromintent != null ? tagfromintent.getid() : null;
        return hexutil.encodehexstr(uid, false);
    }
    
    /**
     * 读取nfcuid 返回byte[]数组
     * 
     */
    public static byte[] readuid(intent intent) throws unsupportedencodingexception {
        tag tagfromintent = intent.getparcelableextra(nfcadapter.extra_tag);
        return tagfromintent.getid();
    }

hexutil工具类：

public class hexutil {

    /**
     * 用于建立十六进制字符的输出的小写字符数组
     */
    private static final char[] digits_lower = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
            'a', 'b', 'c', 'd', 'e', 'f'};

    /**
     * 用于建立十六进制字符的输出的大写字符数组
     */
    private static final char[] digits_upper = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
            'a', 'b', 'c', 'd', 'e', 'f'};

    /**
     * 将字节数组转换为十六进制字符数组
     *
     * @param data     byte[]
     * @param todigits 用于控制输出的char[]
     * @return 十六进制char[]
     */
    protected static char[] encodehex(byte[] data, char[] todigits) {
        int l = data.length;
        char[] out = new char[l << 1];
        // two characters form the hex value.
        for (int i = 0, j = 0; i < l; i++) {
            out[j++] = todigits[(0xf0 & data[i]) >>> 4];
            out[j++] = todigits[0x0f & data[i]];
        }
        return out;
    }

    /**
     * 将字节数组转换为十六进制字符串
     *
     * @param data        byte[]
     * @param tolowercase <code>true</code> 传换成小写格式 ， <code>false</code> 传换成大写格式
     * @return 十六进制string
     */
    public static string encodehexstr(byte[] data, boolean tolowercase) {
        return encodehexstr(data, tolowercase ? digits_lower : digits_upper);
    }

    /**
     * 将字节数组转换为十六进制字符串
     *
     * @param data     byte[]
     * @param todigits 用于控制输出的char[]
     * @return 十六进制string
     */
    protected static string encodehexstr(byte[] data, char[] todigits) {
        if (data == null) {
            return "";
        }
        return new string(encodehex(data, todigits));
    }
}
 

通过uid去查询厂商

public class manufacturer {

    private static final string mnf_unknown = "unknown manufacture";

    public static final map<byte, string> manufacturername;

    static {
        manufacturername = new hashmap<>();
        manufacturername.put((byte)1, "motorola");
        manufacturername.put((byte)2, "stmicroelectronics sa ");
        manufacturername.put((byte)3, "hitachi, ltd");
        manufacturername.put((byte)4, "nxp semiconductors");
        manufacturername.put((byte)5, "infineon technologies ag ");
        manufacturername.put((byte)6, "cylink");
        manufacturername.put((byte)7, "texas instrument");
        manufacturername.put((byte)8, "fujitsu limited");
        manufacturername.put((byte)9, "matsushita electronics corporation, semiconductor company");
        manufacturername.put((byte)10, "nec");
        manufacturername.put((byte)11, "oki electric industry co. ltd");
        manufacturername.put((byte)12, "toshiba corp");
        manufacturername.put((byte)13, "mitsubishi electric corp");
        manufacturername.put((byte)14, "samsung electronics co. ltd");
        manufacturername.put((byte)15, "hynix");
        manufacturername.put((byte)16, "lg-semiconductors co. ltd");
        manufacturername.put((byte)17, "emosyn-em microelectronics");
        manufacturername.put((byte)18, "inside technology");
        manufacturername.put((byte)19, "orga kartensysteme gmbh");
        manufacturername.put((byte)20, "sharp corporation");
        manufacturername.put((byte)21, "atmel");
        manufacturername.put((byte)22, "em microelectronic-marin sa");
        manufacturername.put((byte)23, "smartrac technology gmbh ");
        manufacturername.put((byte)24, "zmd ag");
        manufacturername.put((byte)25, "xicor, inc");
        manufacturername.put((byte)26, "sony corporation");
        manufacturername.put((byte)27, "malaysia microelectronic solutions sdn. bhd");
        manufacturername.put((byte)28, "emosyn");
        manufacturername.put((byte)29, "shanghai fudan microelectronics co. ltd");
        manufacturername.put((byte)30, "magellan technology pty limited");
        manufacturername.put((byte)31, "melexis nv bo");
        manufacturername.put((byte)32, "renesas technology corp");
        manufacturername.put((byte)33, "tagsys");
        manufacturername.put((byte)34, "transcore");
        manufacturername.put((byte)35, "shanghai belling corp., ltd");
        manufacturername.put((byte)36, "masktech germany gmbh");
        manufacturername.put((byte)37, "innovision research and technology plc");
        manufacturername.put((byte)38, "hitachi ulsi systems co., ltd");
        manufacturername.put((byte)39, "yubico ab ");
        manufacturername.put((byte)40, "ricoh");
        manufacturername.put((byte)41, "ask");
        manufacturername.put((byte)42, "unicore microsystems, llc");
        manufacturername.put((byte)43, "dallas semiconductor/maxim");
        manufacturername.put((byte)44, "impinj, inc");
        manufacturername.put((byte)45, "rightplug alliance");
        manufacturername.put((byte)46, "broadcom corporation");
        manufacturername.put((byte)47, "mstar semiconductor, inc");
        manufacturername.put((byte)48, "beedar technology inc");
        manufacturername.put((byte)49, "rfidsec");
        manufacturername.put((byte)50, "schweizer electronic ag ");
        manufacturername.put((byte)51, "amic technology corp");
        manufacturername.put((byte)52, "mikron jsc");
        manufacturername.put((byte)53, "fraunhofer institute for photonic microsystems");
        manufacturername.put((byte)54, "ids microchip ag");
        manufacturername.put((byte)55, "kovio");
        manufacturername.put((byte)56, "hmt microelectronic ltd");
        manufacturername.put((byte)57, "silicon craft technology");
        manufacturername.put((byte)58, "advanced film device inc");
        manufacturername.put((byte)59, "nitecrest ltd");
        manufacturername.put((byte)60, "verayo inc");
        manufacturername.put((byte)61, "hid global");
        manufacturername.put((byte)62, "productivity engineering gmbh");
        manufacturername.put((byte)63, "austriamicrosystems ag (reserved)");
        manufacturername.put((byte)64, "gemalto sa");
        manufacturername.put((byte)65, "renesas electronics corporation");
        manufacturername.put((byte)66, "3alogics inc");
        manufacturername.put((byte)67, "top troniq asia limited");
        manufacturername.put((byte)68, "gentag inc (usa)");
        manufacturername.put((byte)69, "invengo information technology co.ltd ");
        manufacturername.put((byte)70, "guangzhou sysur microelectronics, inc");
        manufacturername.put((byte)71, "ceitec s.a");
        manufacturername.put((byte)72, "shanghai quanray electronics co. ltd");
        manufacturername.put((byte)73, "mediatek inc");
        manufacturername.put((byte)74, "angstrem pjsc");
        manufacturername.put((byte)75, "celisic semiconductor (*) limited");
        manufacturername.put((byte)76, "legic identsystems ag");
        manufacturername.put((byte)77, "balluff gmbh");
        manufacturername.put((byte)78, "oberthur technologies ");
        manufacturername.put((byte)79, "silterra malaysia sdn. bhd");
        manufacturername.put((byte)80, "delta danish electronics, light & acoustics ");
        manufacturername.put((byte)81, "giesecke & devrient gmbh");
        manufacturername.put((byte)82, "shenzhen china vision microelectronics co., ltd");
        manufacturername.put((byte)83, "shanghai feiju microelectronics co. ltd");
        manufacturername.put((byte)84, "intel corporation");
        manufacturername.put((byte)85, "microsensys gmbh");
        manufacturername.put((byte)86, "sonix technology co., ltd");
        manufacturername.put((byte)87, "qualcomm technologies inc");
        manufacturername.put((byte)88, "realtek semiconductor corp");
        manufacturername.put((byte)89, "freevision technologies co. ltd");
        manufacturername.put((byte)90, "giantec semiconductor inc");
        manufacturername.put((byte)91, "jsc angstrem-t");
        manufacturername.put((byte)92, "starchip");
        manufacturername.put((byte)93, "spirtech");
        manufacturername.put((byte)94, "gantner electronic gmbh");
        manufacturername.put((byte)95, "nordic semiconductor");
        manufacturername.put((byte)96, "verisiti inc");
        manufacturername.put((byte)97, "wearlinks technology inc");
        manufacturername.put((byte)98, "userstar information systems co., ltd");
        manufacturername.put((byte)99, "pragmatic printing ltd");
        manufacturername.put((byte)100, "associado laboratde sistemas integrtecnollsi-tec");
        manufacturername.put((byte)101, "tendyron corporation");
        manufacturername.put((byte)102, "muto smart co., ltd");
        manufacturername.put((byte)103, "on semiconductor");
        manufacturername.put((byte)104, "tübitak bilgem");
        manufacturername.put((byte)105, "huada semiconductor co., ltd");
        manufacturername.put((byte)106, "seveney");
        manufacturername.put((byte)107, "issm");
        manufacturername.put((byte)108, "wisesec ltd");
        manufacturername.put((byte)126, "holtek");
        manufacturername.put((byte)-112, "shanghai fudan microelectronics co. ltd");
    }


    /**
     *  通过uid/serial number获取芯片制造商名字
     * @param paramarrayofbyte uid/serial number
     * @return 制造商名字
     */
    public static string getmanufacturerbyuid(byte[] paramarrayofbyte) {
        if (paramarrayofbyte != null)
            try {
                if (paramarrayofbyte.length == 8) {
                    byte[] arrayofbyte = new byte[3];
                    system.arraycopy(paramarrayofbyte, paramarrayofbyte.length - 3, arrayofbyte, 0, 3);
                    return arrays.equals(arrayofbyte, new byte[] { 29, 4, -32 })
                            ? manufacturername.get((byte)29) : (arrays.equals(arrayofbyte, new byte[] { -95, 4, -32 })
                            ? manufacturername.get((byte)29) : (arrays.equals(arrayofbyte, new byte[] { -94, 4, -32 })
                            ? manufacturername.get((byte)29) : manufacturername.get(paramarrayofbyte[6])));
                }
                if (paramarrayofbyte.length == 7)
                    return manufacturername.get(paramarrayofbyte[0]);
            } catch (exception exception) {
                exception.printstacktrace();
            }
        return mnf_unknown;
    }

到此这篇关于android识别nfc芯片制造商的文章就介绍到这了。希望对大家的学习有所帮助，也希望大家多多支持