diff --git a/app/src/main/java/com/zcshou/utils/AESUtils.java b/app/src/main/java/com/zcshou/utils/AESUtils.java
deleted file mode 100644
index 332584a..0000000
--- a/app/src/main/java/com/zcshou/utils/AESUtils.java
+++ /dev/null
@@ -1,130 +0,0 @@
-package com.zcshou.utils;
-
-import org.jetbrains.annotations.NotNull;
-
-import javax.crypto.Cipher;
-import javax.crypto.spec.SecretKeySpec;
-
-import java.nio.charset.StandardCharsets;
-import java.util.Random;
-
-
-public class AESUtils {
-    /*   AES秘钥支持128bit/192bit/256bit三种长度的秘钥，一个字节等于8bit，
-     *   因此支持生成的字符串的长度应该是 16/24/32
-     * */
-
-    //  16 字节 AES秘钥长度（128bit）
-    public static final int KEY_LENGTH_16 = 16;
-    //  24 字节 AES秘钥长度（192bit）
-    public static final int KEY_LENGTH_24 = 24;
-    //  32 字节 AES秘钥长度（256bit）
-    public static final int KEY_LENGTH_32 = 32;
-
-    // 实际上，“ RSA / ECB / PKCS1Padding”未实现ECB模式加密。 它应该被称为“ RSA / None / PKCS1Padding”，
-    // 因为它只能用于加密单个明文块（或者实际上是一个秘密密钥）。 这只是Sun / Oracle的命名错误。
-    private static final String cipherMode = "AES/None/PKCS5Padding";//算法/模式/补码方式
-
-
-//    public static void main(String[] args) {
-//
-//        /*构建一个随机密码*/
-//        String key = getRandomKey(24);
-//        System.out.println("随机生成的key：" + key);
-//
-//        String data = "{'fig':1,'message':'登录成功'}";
-//
-//        try {
-//            String encriptData = AESUtils.encrypt(data, key);
-//            System.out.println("加密后的数据：" + encriptData);
-//
-//            String decryptData = decrypt(encriptData, key);
-//
-//            System.out.println("解密后的数据：" + decryptData);
-//
-//        } catch (Exception e) {
-//            e.printStackTrace();
-//        }
-//
-//    }
-
-
-    /**
-     * @param length 需要生成的字符串长度
-     * @return 随机生成的字符串
-     */
-    public static String getRandomKey(int length) {
-
-        if (length != KEY_LENGTH_16 && length != KEY_LENGTH_24 && length != KEY_LENGTH_32) {
-            System.out.println("长度必须为16/24/32");
-            return null;
-        }
-
-        String str = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-        Random random = new Random();
-        StringBuilder stringBuilder = new StringBuilder();
-        for (int i = 0; i < length; i++) {
-            int number = random.nextInt(62);
-            stringBuilder.append(str.charAt(number));
-        }
-        return stringBuilder.toString();
-
-    }
-
-
-    /**
-     * @param data 需要加密的数据
-     * @param key  加密使用的key
-     * @return 加密后的数据(Base64编码)
-     * @throws Exception 异常
-     */
-    public static String encrypt(String data, @NotNull String key) throws Exception {
-
-        int length = key.length();
-        if (length != KEY_LENGTH_16 && length != KEY_LENGTH_24 && length != KEY_LENGTH_32) {
-            System.out.println("长度必须为16/24/32");
-            return null;
-        }
-
-        byte[] raw = key.getBytes(StandardCharsets.UTF_8);
-        SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
-        Cipher cipher = Cipher.getInstance(cipherMode);
-        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
-        byte[] encrypted = cipher.doFinal(data.getBytes(StandardCharsets.UTF_8));
-
-        return Base64.encode(encrypted);
-    }
-
-
-    /**
-     * @param data 需要解密的数据
-     * @param key  解密用的key
-     * @return 解密后的数据
-     */
-    public static String decrypt(String data, @NotNull String key) {
-        try {
-            int length = key.length();
-            if (length != KEY_LENGTH_16 && length != KEY_LENGTH_24 && length != KEY_LENGTH_32) {
-                System.out.println("长度必须为16/24/32");
-                return null;
-            }
-
-            byte[] raw = key.getBytes(StandardCharsets.UTF_8);
-            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
-            Cipher cipher = Cipher.getInstance(cipherMode);
-            cipher.init(Cipher.DECRYPT_MODE, skeySpec);
-            byte[] encrypted = Base64.decode(data);//先用base64解密
-            try {
-                byte[] original = cipher.doFinal(encrypted);
-                return new String(original, StandardCharsets.UTF_8);
-            } catch (Exception e) {
-                System.out.println(e.toString());
-                return null;
-            }
-        } catch (Exception ex) {
-            System.out.println(ex.toString());
-            return null;
-        }
-    }
-
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/zcshou/utils/Base64.java b/app/src/main/java/com/zcshou/utils/Base64.java
deleted file mode 100644
index 42699fc..0000000
--- a/app/src/main/java/com/zcshou/utils/Base64.java
+++ /dev/null
@@ -1,268 +0,0 @@
-package com.zcshou.utils;
-
-public final class Base64 {
-
-	private static final int BASELENGTH = 128;
-	private static final int LOOKUPLENGTH = 64;
-	private static final int TWENTYFOURBITGROUP = 24;
-	private static final int EIGHTBIT = 8;
-	private static final int SIXTEENBIT = 16;
-	private static final int FOURBYTE = 4;
-	private static final int SIGN = -128;
-	private static char PAD = '=';
-	private static byte[] base64Alphabet = new byte[BASELENGTH];
-	private static char[] lookUpBase64Alphabet = new char[LOOKUPLENGTH];
-
-	static {
-		for (int i = 0; i < BASELENGTH; ++i) {
-			base64Alphabet[i] = -1;
-		}
-		for (int i = 'Z'; i >= 'A'; i--) {
-			base64Alphabet[i] = (byte) (i - 'A');
-		}
-		for (int i = 'z'; i >= 'a'; i--) {
-			base64Alphabet[i] = (byte) (i - 'a' + 26);
-		}
-
-		for (int i = '9'; i >= '0'; i--) {
-			base64Alphabet[i] = (byte) (i - '0' + 52);
-		}
-
-		base64Alphabet['+'] = 62;
-		base64Alphabet['/'] = 63;
-
-		for (int i = 0; i <= 25; i++) {
-			lookUpBase64Alphabet[i] = (char) ('A' + i);
-		}
-
-		for (int i = 26, j = 0; i <= 51; i++, j++) {
-			lookUpBase64Alphabet[i] = (char) ('a' + j);
-		}
-
-		for (int i = 52, j = 0; i <= 61; i++, j++) {
-			lookUpBase64Alphabet[i] = (char) ('0' + j);
-		}
-		lookUpBase64Alphabet[62] = (char) '+';
-		lookUpBase64Alphabet[63] = (char) '/';
-
-	}
-
-	private static boolean isWhiteSpace(char octect) {
-		return (octect == 0x20 || octect == 0xd || octect == 0xa || octect == 0x9);
-	}
-
-	private static boolean isPad(char octect) {
-		return (octect == PAD);
-	}
-
-	private static boolean isData(char octect) {
-		return (octect < BASELENGTH && base64Alphabet[octect] != -1);
-	}
-
-	/**
-	 * Encodes hex octects into Base64
-	 * 
-	 * @param binaryData
-	 *            Array containing binaryData
-	 * @return Encoded Base64 array
-	 */
-	public static String encode(byte[] binaryData) {
-
-		if (binaryData == null) {
-			return null;
-		}
-
-		int lengthDataBits = binaryData.length * EIGHTBIT;
-		if (lengthDataBits == 0) {
-			return "";
-		}
-
-		int fewerThan24bits = lengthDataBits % TWENTYFOURBITGROUP;
-		int numberTriplets = lengthDataBits / TWENTYFOURBITGROUP;
-		int numberQuartet = fewerThan24bits != 0 ? numberTriplets + 1
-				: numberTriplets;
-		char encodedData[] = null;
-
-		encodedData = new char[numberQuartet * 4];
-
-		byte k = 0, l = 0, b1 = 0, b2 = 0, b3 = 0;
-
-		int encodedIndex = 0;
-		int dataIndex = 0;
-
-		for (int i = 0; i < numberTriplets; i++) {
-			b1 = binaryData[dataIndex++];
-			b2 = binaryData[dataIndex++];
-			b3 = binaryData[dataIndex++];
-
-			l = (byte) (b2 & 0x0f);
-			k = (byte) (b1 & 0x03);
-
-			byte val1 = ((b1 & SIGN) == 0) ? (byte) (b1 >> 2)
-					: (byte) ((b1) >> 2 ^ 0xc0);
-			byte val2 = ((b2 & SIGN) == 0) ? (byte) (b2 >> 4)
-					: (byte) ((b2) >> 4 ^ 0xf0);
-			byte val3 = ((b3 & SIGN) == 0) ? (byte) (b3 >> 6)
-					: (byte) ((b3) >> 6 ^ 0xfc);
-
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[val1];
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[val2 | (k << 4)];
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[(l << 2) | val3];
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[b3 & 0x3f];
-		}
-
-		// form integral number of 6-bit groups
-		if (fewerThan24bits == EIGHTBIT) {
-			b1 = binaryData[dataIndex];
-			k = (byte) (b1 & 0x03);
-			
-			byte val1 = ((b1 & SIGN) == 0) ? (byte) (b1 >> 2)
-					: (byte) ((b1) >> 2 ^ 0xc0);
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[val1];
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[k << 4];
-			encodedData[encodedIndex++] = PAD;
-			encodedData[encodedIndex++] = PAD;
-		} else if (fewerThan24bits == SIXTEENBIT) {
-			b1 = binaryData[dataIndex];
-			b2 = binaryData[dataIndex + 1];
-			l = (byte) (b2 & 0x0f);
-			k = (byte) (b1 & 0x03);
-
-			byte val1 = ((b1 & SIGN) == 0) ? (byte) (b1 >> 2)
-					: (byte) ((b1) >> 2 ^ 0xc0);
-			byte val2 = ((b2 & SIGN) == 0) ? (byte) (b2 >> 4)
-					: (byte) ((b2) >> 4 ^ 0xf0);
-
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[val1];
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[val2 | (k << 4)];
-			encodedData[encodedIndex++] = lookUpBase64Alphabet[l << 2];
-			encodedData[encodedIndex++] = PAD;
-		}
-
-		return new String(encodedData);
-	}
-
-	/**
-	 * Decodes Base64 data into octects
-	 * 
-	 * @param encoded
-	 *            string containing Base64 data
-	 * @return Array containind decoded data.
-	 */
-	public static byte[] decode(String encoded) {
-
-		if (encoded == null) {
-			return null;
-		}
-
-		char[] base64Data = encoded.toCharArray();
-		// remove white spaces
-		int len = removeWhiteSpace(base64Data);
-
-		if (len % FOURBYTE != 0) {
-			return null;// should be divisible by four
-		}
-
-		int numberQuadruple = (len / FOURBYTE);
-
-		if (numberQuadruple == 0) {
-			return new byte[0];
-		}
-
-		byte decodedData[] = null;
-		byte b1 = 0, b2 = 0, b3 = 0, b4 = 0;
-		char d1 = 0, d2 = 0, d3 = 0, d4 = 0;
-
-		int i = 0;
-		int encodedIndex = 0;
-		int dataIndex = 0;
-		decodedData = new byte[(numberQuadruple) * 3];
-
-		for (; i < numberQuadruple - 1; i++) {
-
-			if (!isData((d1 = base64Data[dataIndex++]))
-					|| !isData((d2 = base64Data[dataIndex++]))
-					|| !isData((d3 = base64Data[dataIndex++]))
-					|| !isData((d4 = base64Data[dataIndex++]))) {
-				return null;
-			}// if found "no data" just return null
-
-			b1 = base64Alphabet[d1];
-			b2 = base64Alphabet[d2];
-			b3 = base64Alphabet[d3];
-			b4 = base64Alphabet[d4];
-
-			decodedData[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4);
-			decodedData[encodedIndex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));
-			decodedData[encodedIndex++] = (byte) (b3 << 6 | b4);
-		}
-
-		if (!isData((d1 = base64Data[dataIndex++]))
-				|| !isData((d2 = base64Data[dataIndex++]))) {
-			return null;// if found "no data" just return null
-		}
-
-		b1 = base64Alphabet[d1];
-		b2 = base64Alphabet[d2];
-
-		d3 = base64Data[dataIndex++];
-		d4 = base64Data[dataIndex++];
-		if (!isData((d3)) || !isData((d4))) {// Check if they are PAD characters
-			if (isPad(d3) && isPad(d4)) {
-				if ((b2 & 0xf) != 0)// last 4 bits should be zero
-				{
-					return null;
-				}
-				byte[] tmp = new byte[i * 3 + 1];
-				System.arraycopy(decodedData, 0, tmp, 0, i * 3);
-				tmp[encodedIndex] = (byte) (b1 << 2 | b2 >> 4);
-				return tmp;
-			} else if (!isPad(d3) && isPad(d4)) {
-				b3 = base64Alphabet[d3];
-				if ((b3 & 0x3) != 0)// last 2 bits should be zero
-				{
-					return null;
-				}
-				byte[] tmp = new byte[i * 3 + 2];
-				System.arraycopy(decodedData, 0, tmp, 0, i * 3);
-				tmp[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4);
-				tmp[encodedIndex] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));
-				return tmp;
-			} else {
-				return null;
-			}
-		} else { // No PAD e.g 3cQl
-			b3 = base64Alphabet[d3];
-			b4 = base64Alphabet[d4];
-			decodedData[encodedIndex++] = (byte) (b1 << 2 | b2 >> 4);
-			decodedData[encodedIndex++] = (byte) (((b2 & 0xf) << 4) | ((b3 >> 2) & 0xf));
-			decodedData[encodedIndex++] = (byte) (b3 << 6 | b4);
-
-		}
-
-		return decodedData;
-	}
-
-	/**
-	 * remove WhiteSpace from MIME containing encoded Base64 data.
-	 * 
-	 * @param data
-	 *            the byte array of base64 data (with WS)
-	 * @return the new length
-	 */
-	private static int removeWhiteSpace(char[] data) {
-		if (data == null) {
-			return 0;
-		}
-
-		// count characters that's not whitespace
-		int newSize = 0;
-		int len = data.length;
-		for (int i = 0; i < len; i++) {
-			if (!isWhiteSpace(data[i])) {
-				data[newSize++] = data[i];
-			}
-		}
-		return newSize;
-	}
-}
diff --git a/app/src/main/java/com/zcshou/utils/DeviceIdUtils.java b/app/src/main/java/com/zcshou/utils/DeviceIdUtils.java
deleted file mode 100644
index 42f5683..0000000
--- a/app/src/main/java/com/zcshou/utils/DeviceIdUtils.java
+++ /dev/null
@@ -1,183 +0,0 @@
-package com.zcshou.utils;
-
-import android.content.Context;
-import android.os.Build;
-import android.provider.Settings;
-import android.telephony.TelephonyManager;
-
-import androidx.annotation.RequiresApi;
-
-import java.nio.charset.StandardCharsets;
-import java.security.MessageDigest;
-import java.util.Locale;
-import java.util.UUID;
-
-public class DeviceIdUtils {
-    /**
-     * 获得设备硬件标识
-     *
-     * @param context 上下文
-     * @return 设备硬件标识
-     */
-    @RequiresApi(api = Build.VERSION_CODES.O)
-    public static String getDeviceId(Context context) {
-        StringBuilder sbDeviceId = new StringBuilder();
-
-        //获得设备默认IMEI（>=6.0 需要ReadPhoneState权限）
-
-        String imei = getIMEI(context);
-
-        //获得AndroidId（无需权限）
-        String androidid = getAndroidId(context);
-
-        //获得设备序列号（无需权限）
-        String serial = getSERIAL();
-
-        //获得硬件uuid（根据硬件相关属性，生成uuid）（无需权限）
-        String uuid = getDeviceUUID().replace("-", "");
-
-        //追加 imei
-        if (imei != null && imei.length() > 0) {
-            sbDeviceId.append(imei);
-            sbDeviceId.append("|");
-        }
-        //追加 androidid
-        if (androidid != null && androidid.length() > 0) {
-            sbDeviceId.append(androidid);
-            sbDeviceId.append("|");
-        }
-
-        //追加serial
-        if (serial != null && serial.length() > 0) {
-            sbDeviceId.append(serial);
-            sbDeviceId.append("|");
-        }
-
-        //追加硬件uuid
-        if (uuid != null && uuid.length() > 0) {
-            sbDeviceId.append(uuid);
-        }
-
-        //生成SHA1，统一DeviceId长度
-        if (sbDeviceId.length() > 0) {
-            try {
-                byte[] hash = getHashByString(sbDeviceId.toString());
-                String sha1 = bytesToHex(hash);
-                if (sha1 != null && sha1.length() > 0) {
-                    //返回最终的DeviceId
-                    return sha1;
-                }
-            } catch (Exception ex) {
-                ex.printStackTrace();
-            }
-        }
-
-        //如果以上硬件标识数据均无法获得，
-        //则DeviceId默认使用系统随机数，这样保证DeviceId不为空
-        return UUID.randomUUID().toString().replace("-", "");
-    }
-
-    //需要获得READ_PHONE_STATE权限，>=6.0，默认返回null
-    @RequiresApi(api = Build.VERSION_CODES.O)
-    private static String getIMEI(Context context) {
-        try {
-            TelephonyManager tm = (TelephonyManager)
-                    context.getSystemService(Context.TELEPHONY_SERVICE);
-            return tm.getImei();
-        } catch (Exception ex) {
-            ex.printStackTrace();
-        }
-        return "";
-    }
-
-    /**
-     * 获得设备的AndroidId
-     *
-     * @param context 上下文
-     * @return 设备的AndroidId
-     */
-    private static String getAndroidId(Context context) {
-        try {
-            return Settings.Secure.getString(context.getContentResolver(),
-                    Settings.Secure.ANDROID_ID);
-        } catch (Exception ex) {
-            ex.printStackTrace();
-        }
-        return "";
-    }
-
-    /**
-     * 获得设备序列号（如：WTK7N16923005607）, 个别设备无法获取
-     *
-     * @return 设备序列号
-     */
-    private static String getSERIAL() {
-        String serial ="";
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            serial = Build.getSerial();
-        } else {
-            serial = Build.SERIAL;
-        }
-        return serial;
-    }
-
-    /**
-     * 获得设备硬件uuid
-     * 使用硬件信息，计算出一个随机数
-     *
-     * @return 设备硬件uuid
-     */
-    @RequiresApi(api = Build.VERSION_CODES.O)
-    private static String getDeviceUUID() {
-        try {
-            String dev = "3883756" +
-                    Build.BOARD.length() % 10 +
-                    Build.BRAND.length() % 10 +
-                    Build.DEVICE.length() % 10 +
-                    Build.HARDWARE.length() % 10 +
-                    Build.ID.length() % 10 +
-                    Build.MODEL.length() % 10 +
-                    Build.PRODUCT.length() % 10 +
-                    Build.getSerial().length() % 10;
-            return new UUID(dev.hashCode(),
-                    Build.getSerial().hashCode()).toString();
-        } catch (Exception ex) {
-            ex.printStackTrace();
-            return "";
-        }
-    }
-
-    /**
-     * 取SHA1
-     * @param data 数据
-     * @return 对应的hash值
-     */
-    private static byte[] getHashByString(String data) {
-        try {
-            MessageDigest  messageDigest = MessageDigest.getInstance("SHA1");
-            messageDigest.reset();
-            messageDigest.update(data.getBytes(StandardCharsets.UTF_8));
-            return messageDigest.digest();
-        } catch (Exception e){
-            return "".getBytes();
-        }
-    }
-
-    /**
-     * 转16进制字符串
-     * @param data 数据
-     * @return 16进制字符串
-     */
-    private static String bytesToHex(byte[] data) {
-        StringBuilder sb = new StringBuilder();
-        String stmp;
-        for (byte datum : data) {
-            stmp = (Integer.toHexString(datum & 0xFF));
-            if (stmp.length() == 1)
-                sb.append("0");
-            sb.append(stmp);
-        }
-        return sb.toString().toUpperCase(Locale.CHINA);
-    }
-
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/zcshou/utils/RSAUtils.java b/app/src/main/java/com/zcshou/utils/RSAUtils.java
deleted file mode 100644
index 06ea421..0000000
--- a/app/src/main/java/com/zcshou/utils/RSAUtils.java
+++ /dev/null
@@ -1,351 +0,0 @@
-package com.zcshou.utils;
-
-
-import javax.crypto.Cipher;
-import java.io.ByteArrayOutputStream;
-import java.security.*;
-import java.security.interfaces.RSAPrivateKey;
-import java.security.interfaces.RSAPublicKey;
-import java.security.spec.PKCS8EncodedKeySpec;
-import java.security.spec.X509EncodedKeySpec;
-import java.util.HashMap;
-import java.util.Map;
-
-
-public class RSAUtils {
-    public static final int KEY_LENGTH_1024 = 1024;
-
-    public static final int KEY_LENGTH_2048 = 2048;
-
-    /**
-     * 加密算法RSA
-     */
-    private static final String KEY_ALGORITHM = "RSA";
-
-    /**
-     * 签名算法
-     */
-    // public static final String SIGNATURE_ALGORITHM = "MD5withRSA";
-    private static final String SIGNATURE_ALGORITHM = "SHA256withRSA";
-
-    /**
-     * 获取公钥的key
-     */
-    private static final String PUBLIC_KEY = "RSAPublicKey";
-
-
-    /**
-     * 获取私钥的key
-     */
-    private static final String PRIVATE_KEY = "RSAPrivateKey";
-
-
-    /**
-     * RSA最大加密明文大小
-     */
-    private static final int MAX_ENCRYPT_BLOCK = 117;
-
-
-    /**
-     * RSA最大解密密文大小
-     */
-    private static final int MAX_DECRYPT_BLOCK = 256;
-
-
-//    public static void main(String[] args) {
-//
-//
-//        /*RSA  1024 */
-////        String publicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCIarYvrIMZGHKa8f2E6ubg0//28R1zJ4ArD+XELXYvDrM8UBR42PqJCpjPN3hC91YAnnk2Y9U+X5o/rGxH5ZTZzYy+rkAmZFJa1fK2mWDxPYJoxH+DGHQc+h8t83BMB4pKqVPhcJVF6Ie+qpD5RFUU/e5iEz8ZZFDroVE3ubKaKwIDAQAB";
-////        String privateKey = "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";
-//
-//
-//        /*RSA 2048*/
-//
-//        String publicKey = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAichGTEP0QFswnvn+ZAQrgGHM8VeDZLJuezGhgxh4d9SyRUfnIW/zefT71rwS4bZUs1MPxJwavOyxABJOHLuckdHXknCsGEWz78gsA6D0+O+9dl1gCZR29nnN/NlzmNbSjFnzvsTJYBlS88qSr35RXFE+6DM7uPsS8Fm2I+65FteJ8p2yMvpSg72QkIX8xvI1F1uwXrciIB+4u7uTozxIplMOo4a6uhAm3W+Kjpz3ni2btjGqHRbqb3ebSZyl+nFfnjQaBe3XyVxAWDSanjgFj/wbqbeug9FBs+nQFVPIZR9z0aE5Ndi5o3eSkV7HFmWpkxaiPZ0BLRK3XHMaBtuSpwIDAQAB";
-//        String privateKey = "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";
-//
-//
-//        try {
-//
-//            String data = "测试提交数据";
-//
-//            byte[] publicEncryptBytes = RSAUtils.encryptByPublicKey(data.getBytes(), publicKey);
-//            System.out.println("公钥加密后的数据：" + Base64.encode(publicEncryptBytes));
-//            byte[] privatDecryptBytes = RSAUtils.decryptByPrivateKey(publicEncryptBytes, privateKey);
-//            System.out.println("私钥解密后的数据：" + new String(privatDecryptBytes));
-//
-//
-//            System.out.println("--------------------");
-//
-//            byte[] privateKeyEncryptBytes = RSAUtils.encryptByPrivateKey(data.getBytes(), privateKey);
-//            System.out.println("私钥加密后的数据：" + Base64.encode(privateKeyEncryptBytes));
-//
-//            String singnData = RSAUtils.sign(data.getBytes(), privateKey);
-//            System.out.println("私钥签名后的数据：" + singnData);
-//
-//
-//            byte[] publicDecryptBytes = RSAUtils.decryptByPublicKey(privateKeyEncryptBytes, publicKey);
-//            System.out.println("公钥解密后的数据：" + new String(publicDecryptBytes));
-//
-//            boolean isSign = RSAUtils.verify(data.getBytes(), publicKey, singnData);
-//            System.out.println("签名是否正确：" + isSign);
-//
-//
-//        } catch (Exception e) {
-//            e.printStackTrace();
-//        }
-//    }
-
-
-    /**
-     * @param keySize 生成的秘钥长度  一般为1024或2048
-     * @return
-     * * @throws Exception 异常
-     */
-    public static Map<String, Object> genKeyPair(int keySize) throws Exception {
-        if (keySize != KEY_LENGTH_1024 && keySize != KEY_LENGTH_2048) {
-            return null;
-        }
-        KeyPairGenerator keyPairGen = KeyPairGenerator.getInstance(KEY_ALGORITHM);
-        keyPairGen.initialize(keySize);
-        KeyPair keyPair = keyPairGen.generateKeyPair();
-        RSAPublicKey publicKey = (RSAPublicKey) keyPair.getPublic();
-        RSAPrivateKey privateKey = (RSAPrivateKey) keyPair.getPrivate();
-        Map<String, Object> keyMap = new HashMap<>(2);
-        keyMap.put(PUBLIC_KEY, publicKey);
-        keyMap.put(PRIVATE_KEY, privateKey);
-
-        System.out.println("publicKey：" + Base64.encode(publicKey.getEncoded()));
-        System.out.println("privateKey：" + Base64.encode(privateKey.getEncoded()));
-
-        return keyMap;
-    }
-
-
-    /**
-     * 对已加密数据进行签名
-     *
-     * @param data       已加密的数据
-     * @param privateKey 私钥
-     * @return 对已加密数据生成的签名
-     * * @throws Exception 异常
-     */
-
-    public static String sign(byte[] data, String privateKey) throws Exception {
-        byte[] keyBytes = Base64.decode(privateKey);
-        PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
-        KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
-        PrivateKey privateK = keyFactory.generatePrivate(pkcs8KeySpec);
-        Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
-        signature.initSign(privateK);
-        signature.update(data);
-        return Base64.encode(signature.sign());
-    }
-
-
-    /**
-     * 验签
-     *
-     * @param data      签名之前的数据
-     * @param publicKey 公钥
-     * @param sign      签名之后的数据
-     * @return 验签是否成功
-     * * @throws Exception 异常
-     */
-    public static boolean verify(byte[] data, String publicKey, String sign) throws Exception {
-        byte[] keyBytes = Base64.decode(publicKey);
-        X509EncodedKeySpec keySpec = new X509EncodedKeySpec(keyBytes);
-        KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
-        PublicKey publicK = keyFactory.generatePublic(keySpec);
-        Signature signature = Signature.getInstance(SIGNATURE_ALGORITHM);
-        signature.initVerify(publicK);
-        signature.update(data);
-        return signature.verify(Base64.decode(sign));
-    }
-
-
-    /**
-     * 用私钥对数据进行解密
-     *
-     * @param encryptedData 使用公钥加密过的数据
-     * @param privateKey    私钥
-     * @return 解密后的数据
-     * * @throws Exception 异常
-     */
-    public static byte[] decryptByPrivateKey(byte[] encryptedData, String privateKey) throws Exception {
-        byte[] keyBytes = Base64.decode(privateKey);
-        PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
-        KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
-        Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
-        //Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
-        Cipher cipher = Cipher.getInstance(KEY_ALGORITHM);
-        cipher.init(Cipher.DECRYPT_MODE, privateK);
-
-        int inputLen = encryptedData.length;
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-        int offSet = 0;
-        byte[] cache;
-        int i = 0;
-        // 对数据分段解密
-        while (inputLen - offSet > 0) {
-            if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
-                cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
-            } else {
-                cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
-            }
-            out.write(cache, 0, cache.length);
-            i++;
-            offSet = i * MAX_DECRYPT_BLOCK;
-        }
-        byte[] decryptedData = out.toByteArray();
-        out.close();
-
-
-        return decryptedData;
-    }
-
-    /**
-     * 公钥解密
-     *
-     * @param encryptedData 使用私钥加密过的数据
-     * @param publicKey     公钥
-     * @return 解密后的数据
-     * * @throws Exception 异常
-     */
-    public static byte[] decryptByPublicKey(byte[] encryptedData, String publicKey) throws Exception {
-        byte[] keyBytes = Base64.decode(publicKey);
-        X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
-        KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
-        Key publicK = keyFactory.generatePublic(x509KeySpec);
-        Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
-        cipher.init(Cipher.DECRYPT_MODE, publicK);
-        int inputLen = encryptedData.length;
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-        int offSet = 0;
-        byte[] cache;
-        int i = 0;
-        // 对数据分段解密
-        while (inputLen - offSet > 0) {
-            if (inputLen - offSet > MAX_DECRYPT_BLOCK) {
-                cache = cipher.doFinal(encryptedData, offSet, MAX_DECRYPT_BLOCK);
-            } else {
-                cache = cipher.doFinal(encryptedData, offSet, inputLen - offSet);
-            }
-            out.write(cache, 0, cache.length);
-            i++;
-            offSet = i * MAX_DECRYPT_BLOCK;
-        }
-        byte[] decryptedData = out.toByteArray();
-        out.close();
-        return decryptedData;
-    }
-
-
-    /**
-     * 公钥加密
-     *
-     * @param data      需要加密的数据
-     * @param publicKey 公钥
-     * @return 使用公钥加密后的数据
-     * * @throws Exception 异常
-     */
-    public static byte[] encryptByPublicKey(byte[] data, String publicKey) throws Exception {
-        byte[] keyBytes = Base64.decode(publicKey);
-        X509EncodedKeySpec x509KeySpec = new X509EncodedKeySpec(keyBytes);
-        KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
-        Key publicK = keyFactory.generatePublic(x509KeySpec);
-        // 对数据加密
-        Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
-        cipher.init(Cipher.ENCRYPT_MODE, publicK);
-        int inputLen = data.length;
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-        int offSet = 0;
-        byte[] cache;
-        int i = 0;
-        // 对数据分段加密
-        while (inputLen - offSet > 0) {
-            if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {
-                cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);
-            } else {
-                cache = cipher.doFinal(data, offSet, inputLen - offSet);
-            }
-            out.write(cache, 0, cache.length);
-            i++;
-            offSet = i * MAX_ENCRYPT_BLOCK;
-        }
-        byte[] encryptedData = out.toByteArray();
-        out.close();
-        return encryptedData;
-    }
-
-
-    /**
-     * 私钥加密
-     *
-     * @param data       待加密的数据
-     * @param privateKey 私钥
-     * @return 使用私钥加密后的数据
-     * * @throws Exception 异常
-     */
-    public static byte[] encryptByPrivateKey(byte[] data, String privateKey) throws Exception {
-        byte[] keyBytes = Base64.decode(privateKey);
-        PKCS8EncodedKeySpec pkcs8KeySpec = new PKCS8EncodedKeySpec(keyBytes);
-        KeyFactory keyFactory = KeyFactory.getInstance(KEY_ALGORITHM);
-        Key privateK = keyFactory.generatePrivate(pkcs8KeySpec);
-        Cipher cipher = Cipher.getInstance(keyFactory.getAlgorithm());
-        cipher.init(Cipher.ENCRYPT_MODE, privateK);
-        int inputLen = data.length;
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
-        int offSet = 0;
-        byte[] cache;
-        int i = 0;
-        // 对数据分段加密
-        while (inputLen - offSet > 0) {
-            if (inputLen - offSet > MAX_ENCRYPT_BLOCK) {
-                cache = cipher.doFinal(data, offSet, MAX_ENCRYPT_BLOCK);
-            } else {
-                cache = cipher.doFinal(data, offSet, inputLen - offSet);
-            }
-            out.write(cache, 0, cache.length);
-            i++;
-            offSet = i * MAX_ENCRYPT_BLOCK;
-        }
-        byte[] encryptedData = out.toByteArray();
-        out.close();
-        return encryptedData;
-    }
-
-
-    /**
-     * 获取私钥
-     *
-     * @param keyMap 生成的秘钥对
-     * @return 私钥
-     */
-    public static String getPrivateKey(Map<String, Object> keyMap) {
-        Key key = (Key) keyMap.get(PRIVATE_KEY);
-        if (key == null) {
-            return null;
-        } else {
-            return Base64.encode(key.getEncoded());
-        }
-    }
-
-
-    /**
-     * 获取公钥
-     *
-     * @param keyMap 生成的秘钥对
-     * @return 公钥
-     */
-    public static String getPublicKey(Map<String, Object> keyMap) {
-        Key key = (Key) keyMap.get(PUBLIC_KEY);
-        if (key == null) {
-            return null;
-        } else {
-            return Base64.encode(key.getEncoded());
-        }
-    }
-
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/zcshou/utils/RomUtils.java b/app/src/main/java/com/zcshou/utils/RomUtils.java
deleted file mode 100644
index cc7995a..0000000
--- a/app/src/main/java/com/zcshou/utils/RomUtils.java
+++ /dev/null
@@ -1,128 +0,0 @@
-package com.zcshou.utils;
-
-import android.os.Build;
-import android.text.TextUtils;
-import android.util.Log;
-
-import java.io.BufferedReader;
-import java.io.IOException;
-import java.io.InputStreamReader;
-
-/**
- * Created by HaiyuKing
- * Used 判断手机ROM,检测ROM是MIUI、EMUI还是Flyme
- * 参考资料：https://www.jianshu.com/p/ba9347a5a05a
- */
-public class RomUtils {
-    private static final String TAG = "Rom";
-
-    public static final String ROM_MIUI = "MIUI";
-    public static final String ROM_EMUI = "EMUI";
-    public static final String ROM_FLYME = "FLYME";
-    public static final String ROM_OPPO = "OPPO";
-    public static final String ROM_SMARTISAN = "SMARTISAN";
-    public static final String ROM_VIVO = "VIVO";
-    public static final String ROM_QIKU = "QIKU";
-
-    private static final String KEY_VERSION_MIUI = "ro.miui.ui.version.name";
-    private static final String KEY_VERSION_EMUI = "ro.build.version.emui";
-    private static final String KEY_VERSION_OPPO = "ro.build.version.opporom";
-    private static final String KEY_VERSION_SMARTISAN = "ro.smartisan.version";
-    private static final String KEY_VERSION_VIVO = "ro.vivo.os.version";
-
-    private static String sName;
-    private static String sVersion;
-
-    //华为
-    public static boolean isEmui() {
-        return check(ROM_EMUI);
-    }
-    //小米
-    public static boolean isMiui() {
-        return check(ROM_MIUI);
-    }
-    //vivo
-    public static boolean isVivo() {
-        return check(ROM_VIVO);
-    }
-    //oppo
-    public static boolean isOppo() {
-        return check(ROM_OPPO);
-    }
-    //魅族
-    public static boolean isFlyme() {
-        return check(ROM_FLYME);
-    }
-    //360手机
-    public static boolean is360() {
-        return check(ROM_QIKU) || check("360");
-    }
-
-    public static boolean isSmartisan() {
-        return check(ROM_SMARTISAN);
-    }
-
-    public static String getName() {
-        if (sName == null) {
-            check("");
-        }
-        return sName;
-    }
-
-    public static String getVersion() {
-        if (sVersion == null) {
-            check("");
-        }
-        return sVersion;
-    }
-
-    public static boolean check(String rom) {
-        if (sName != null) {
-            return sName.equals(rom);
-        }
-
-        if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_MIUI))) {
-            sName = ROM_MIUI;
-        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_EMUI))) {
-            sName = ROM_EMUI;
-        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_OPPO))) {
-            sName = ROM_OPPO;
-        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_VIVO))) {
-            sName = ROM_VIVO;
-        } else if (!TextUtils.isEmpty(sVersion = getProp(KEY_VERSION_SMARTISAN))) {
-            sName = ROM_SMARTISAN;
-        } else {
-            sVersion = Build.DISPLAY;
-            if (sVersion.toUpperCase().contains(ROM_FLYME)) {
-                sName = ROM_FLYME;
-            } else {
-                sVersion = Build.UNKNOWN;
-                sName = Build.MANUFACTURER.toUpperCase();
-            }
-        }
-        return sName.equals(rom);
-    }
-
-    public static String getProp(String name) {
-        String line = null;
-        BufferedReader input = null;
-        try {
-            Process p = Runtime.getRuntime().exec("getprop " + name);
-            input = new BufferedReader(new InputStreamReader(p.getInputStream()), 1024);
-            line = input.readLine();
-            input.close();
-        } catch (IOException ex) {
-            Log.e(TAG, "Unable to read prop " + name, ex);
-            return null;
-        } finally {
-            if (input != null) {
-                try {
-                    input.close();
-                } catch (IOException e) {
-                    e.printStackTrace();
-                }
-            }
-        }
-        return line;
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/zcshou/utils/TimeUtils.java b/app/src/main/java/com/zcshou/utils/TimeUtils.java
deleted file mode 100644
index 9321a5a..0000000
--- a/app/src/main/java/com/zcshou/utils/TimeUtils.java
+++ /dev/null
@@ -1,149 +0,0 @@
-package com.zcshou.utils;
-
-import android.util.Log;
-import java.text.ParseException;
-import java.text.SimpleDateFormat;
-import java.util.Calendar;
-import java.util.Date;
-import java.util.Locale;
-import java.util.TimeZone;
-
-public class TimeUtils {
-    /**
-     * 获取当前时间
-     *
-     * @return string
-     */
-    public static String getNowTime() {
-        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-        Date date = new Date(System.currentTimeMillis());
-        return simpleDateFormat.format(date);
-    }
-
-    /**
-     * 获取时间戳
-     *
-     * @return 获取时间戳
-     */
-    public static String getTimeString() {
-        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-        Calendar calendar = Calendar.getInstance();
-        return df.format(calendar.getTime());
-    }
-
-    /**
-     * 时间转换为时间戳
-     *
-     * @param time:需要转换的时间
-     * @return string
-     */
-    public static String dateToStamp(String time) {
-        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-        Date date = null;
-        try {
-            date = simpleDateFormat.parse(time);
-        } catch (ParseException e) {
-            e.printStackTrace();
-        }
-        if (date == null) {
-            return null;
-        } else {
-            long ts = date.getTime();
-            return String.valueOf(ts);
-        }
-    }
-
-    /**
-     * 时间戳转换为字符串
-     *
-     * @param time:时间戳
-     * @return string
-     */
-    public static String times(String time) {
-        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd HH时mm分", Locale.getDefault());
-        @SuppressWarnings("unused")
-        long lcc = Long.parseLong(time);
-        int i = Integer.parseInt(time);
-        return sdr.format(new Date(i * 1000L));
-
-    }
-
-    /**
-     * 获取距现在某一小时的时刻
-     *
-     * @param hour hour=-1为上一个小时，hour=1为下一个小时
-     * @return string
-     */
-    public static String getLongTime(int hour) {
-        Calendar c = Calendar.getInstance(); // 当时的日期和时间      
-        int h; // 需要更改的小时      
-        h = c.get(Calendar.HOUR_OF_DAY) - hour;
-        c.set(Calendar.HOUR_OF_DAY, h);
-        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-        Log.v("time", df.format(c.getTime()));
-        return df.format(c.getTime());
-    }
-
-    /**
-     * 比较时间大小
-     *
-     * @param str1：要比较的时间
-     * @param str2：要比较的时间
-     * @return string
-     */
-    public static boolean isDateOneBigger(String str1, String str2) {
-        boolean isBigger = false;
-        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-        Date dt1 = null;
-        Date dt2 = null;
-        try {
-            dt1 = sdf.parse(str1);
-            dt2 = sdf.parse(str2);
-        } catch (ParseException e) {
-            e.printStackTrace();
-        }
-        if (dt1 == null || dt2 == null) {
-            return false;
-        } else {
-            if (dt1.getTime() > dt2.getTime()) {
-                isBigger = true;
-            }
-            return isBigger;
-        }
-    }
-
-    /**
-     * 当地时间 ---> UTC时间
-     *
-     * @return string
-     */
-    public static String Local2UTC() {
-        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());
-        sdf.setTimeZone(TimeZone.getTimeZone("gmt"));
-        return sdf.format(new Date());
-    }
-
-    /**
-     * UTC时间 ---> 当地时间
-     *
-     * @param utcTime UTC时间
-     * @return s
-     */
-    public static String utc2Local(String utcTime) {
-        SimpleDateFormat utcFormater = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());//UTC时间格式
-        utcFormater.setTimeZone(TimeZone.getTimeZone("UTC"));
-        Date gpsUTCDate = null;
-        try {
-            gpsUTCDate = utcFormater.parse(utcTime);
-        } catch (ParseException e) {
-            e.printStackTrace();
-        }
-        SimpleDateFormat localFormater = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault());//当地时间格式
-        localFormater.setTimeZone(TimeZone.getDefault());
-        if (gpsUTCDate == null) {
-            return null;
-        } else {
-            return localFormater.format(gpsUTCDate.getTime());
-        }
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/res/drawable/welcome.png b/app/src/main/res/drawable/welcome.png
index d3dae81..a0ec2ea 100644
Binary files a/app/src/main/res/drawable/welcome.png and b/app/src/main/res/drawable/welcome.png differ