Класс авторизации

public class bf {
    public static bg m1104a(String str, String str2, String str3, boolean z, String str4, byte[] bArr) {
        bg bgVar;
        Exception exception;
        Exception e;
        bg bgVar2;
        Throwable th;
        String a = C0000a.m2a(str2, "$2a$10$OOv2wLxbNjUxVcc1sjysau");
        a = (!z || str3.isEmpty()) ? "{\"email\":\"" + str + "\",\"password\":\"" + a + "\"" : "{\"email\":\"" + str + "\",\"password\":\"" + a + "\",\"totp\":\"" + str3 + "\"";
        a = (bArr == null || bArr.length <= 0) ? a + "}" : a + ", \"sign\":\"" + C0136r.m1137a(bArr).toLowerCase() + "\",\"task\":\"" + str4 + "\"}";
        Log.d("Auth", "request: " + a);
        byte[] bytes = a.getBytes();
        try {
            HttpURLConnection httpURLConnection = null;
            try {
                HttpURLConnection httpURLConnection2 = (HttpURLConnection) new URL(z ? "https://rest.url.com/api/2.4/auth/login" : "https://rest.url.com/api/2.4/auth/register").openConnection();
                try {
                    httpURLConnection2.setRequestProperty("Accept-Encoding", "");
                    httpURLConnection2.setRequestProperty("Content-Type", "application/json");
                    httpURLConnection2.setRequestProperty("Connection", "close");
                    httpURLConnection2.setRequestProperty("User-Agent", m1105a());
                    try {
                        httpURLConnection2.setRequestMethod("POST");
                        httpURLConnection2.setDoInput(true);
                        httpURLConnection2.setDoOutput(true);
                        httpURLConnection2.setFixedLengthStreamingMode(bytes.length);
                        try {
                            httpURLConnection2.getOutputStream().write(bytes);
                            try {
                                int responseCode = httpURLConnection2.getResponseCode();



Класс, в котором вызывается метод получения Sign

public class C0136r {
    private static final char[] f609a;

    static {
        f609a = "0123456789ABCDEF".toCharArray();
    }

    public static int m1136a(char c) {
        if (c >= '0' && c <= '9') {
            return c - 48;
        }
        if (c >= 'A' && c <= 'F') {
            return (c - 65) + 10;
        }
        if (c >= 'a' && c <= 'f') {
            return (c - 97) + 10;
        }
        throw new RuntimeException("Invalid hex character");
    }

    public static String m1137a(byte[] bArr) {
        char[] cArr = new char[(bArr.length * 2)];
        for (int i = 0; i < bArr.length; i++) {
            int i2 = bArr[i] & 255;
            cArr[i * 2] = f609a[i2 >>> 4];
            cArr[(i * 2) + 1] = f609a[i2 & 15];
        }
        return new String(cArr);
    }

    public static byte[] m1138a(String str) {
        if ((str.length() & 1) != 0) {
            throw new RuntimeException("Invalid hex string");
        }
        byte[] bArr = new byte[(str.length() / 2)];
        for (int i = 0; i < str.length() / 2; i++) {
            bArr[i] = (byte) ((C0136r.m1136a(str.charAt(i * 2)) << 4) | C0136r.m1136a(str.charAt((i * 2) + 1)));
        }
        return bArr;
    }
}


Класс, в котором вызывается метод авторизации

 public C0139u(LoginActivity loginActivity, int i, Handler handler, String str, String str2, String str3) {
        this.f616a = loginActivity;
        this.f617b = i;
        this.f618c = handler;
        this.Username = str; \\Login
        this.Password = str2; \\ password
        this.f621f = str3;  \\ Task
    }

    byte[] m1140a(bj bjVar) {
        byte[] bytes = bjVar.f554b.getBytes();
        byte[] bArr = new byte[64];
        int i = 0;
        while (i < bjVar.f553a) {
            LoginActivity.keccak(bytes, bArr);
            i++;
            bytes = bArr;
        }
        return bArr;
    }

    public void run() {
        if (this.f621f.isEmpty()) {
            bk c = bf.m1113c(this.Username);
            if (c.f555a) {
                bj bjVar = c.f557c;
                if (this.f617b == 0 ? c.f556b : false) {
                    this.f618c.post(new C0138t(this.f616a, "Verification required", this.Username, ""));
                    return;
                }
                bg a;
                do {
                    bj bjVar2 = bjVar;
                    a = bf.m1104a(this.Username, this.Password, "", this.f617b == 0, bjVar2.f554b, bjVar2.f553a > 0 ? m1140a(bjVar2) : null);
                    bjVar = a.f548c;
                } while (bjVar != null);
                this.f618c.post(new C0138t(this.f616a, a.f546a, this.Username, a.f547b));
                return;
            }
            this.f618c.post(new C0138t(this.f616a, c.f558d, this.Username, ""));
            return;
        }
        bg a2 = bf.m1104a(this.Username, this.Password, this.f621f, this.f617b == 0, null, null);
        this.f618c.post(new C0138t(this.f616a, a2.f546a, this.Username, a2.f547b));
    }
}