cf低价发卡网,教程｜IAPP的libo驻防教程 防止一键解密还原出IAPP V3的iyu代码

前言

很多挚友在用iApp编写软件时
，教程解密都有同一个顾虑——担心辛苦写的的i代码iyu代码被一键解密工具轻快还原，导致成果被盗用 。驻止键别再为此焦虑 ！防教cf低价发卡网安鹿这份针对性教程，程防出专门会谈解如何筑牢IAPP V3的还原cf透视自瞄辅助网站安全防线 。

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工具

MT管理器(校验版本号选最新版本)

NP管理器(校验版本号选最新版本)

iapp写的的i代码软件（自备）

教程

1.mt/np管理器提取iapp写的软件安装包

2.点classex文件用dex++编辑器打开

3.在DEX碰见类名com.iapp.app.f

4.在最下面的b计划头部，增补

const-string p0,驻止键 "123456.txt"
const-string p0, "123456.txt"
const-string p0, "123456.txt"

5.点下方u计划，跳转过去
 ，cf卡盟将原本的u计划修改，改成下面的代码

.method public static b(Ljava/lang/String;Landroid/content/Context;)[B
    .registers 3
    const-string p0, "lib.so"
    invoke-static {p1, p0}, Lc/b/a/a/d;->u(Landroid/content/Context;Ljava/lang/String;)[B
    move-result-object p0
return-object p0
.end method
.method public static u(Landroid/content/Context;Ljava/lang/String;)[B
    .registers 11
    const/4 v0, 0x0
    :try_start_1
    invoke-virtual {p0}, Landroid/content/Context;->getAssets()Landroid/content/res/AssetManager;
    move-result-object p0
    invoke-virtual {p0, p1}, Landroid/content/res/AssetManager;->open(Ljava/lang/String;)Ljava/io/InputStream;
    move-result-object p0
    :try_end_9
    .catch Ljava/lang/Exception; {:try_start_1 .. :try_end_9} :catch_a
    goto :goto_b
    :catch_a
    move-object p0, v0
    :goto_b
if-nez p0, :cond_e
return-object v0
    :cond_e
    invoke-static {p0}, Lc/b/a/a/d;->w(Ljava/io/InputStream;)[B
    move-result-object p0
if-eqz p0, :cond_3a
    array-length p1, p0
if-lez p1, :cond_3a
    const v1, 0x37e7f5
    const/4 v2, 0x0
    :goto_1b
if-ge v2, p1, :cond_3a
    aget-byte v3, p0, v2
    rem-int/lit8 v4, v2, 0x3
    const/4 v5, 0x0
if-nez v4, :cond_29
    shr-int/lit8 v4, v1, 0x10
    and-int/lit16 v4, v4, 0xff
    goto :goto_33
    :cond_29
    const/4 v6, 0x1
if-ne v4, v6, :cond_31
    shr-int/lit8 v4, v1, 0x8
    and-int/lit16 v4, v4, 0xff
    goto :goto_33
    :cond_31
    and-int/lit16 v4, v1, 0xff
    :goto_33
    xor-int/2addr v3, v4
    int-to-byte v3, v3
    aput-byte v3, p0, v2
    add-int/lit8 v2, v2, 0x1
    goto :goto_1b
    :cond_3a
return-object p0
.end method
.method public static b(Ljava/lang/String;Landroid/content/Context;)[B    .registers 3    const-string p0, "lib.so"    invoke-static {p1, p0}, Lc/b/a/a/d;->u(Landroid/content/Context;Ljava/lang/String;)[B    move-result-object p0    return-object p0.end method.method public static u(Landroid/content/Context;Ljava/lang/String;)[B    .registers 11    const/4 v0, 0x0    :try_start_1    invoke-virtual {p0}, Landroid/content/Context;->getAssets()Landroid/content/res/AssetManager;    move-result-object p0    invoke-virtual {p0, p1}, Landroid/content/res/AssetManager;->open(Ljava/lang/String;)Ljava/io/InputStream;    move-result-object p0    :try_end_9    .catch Ljava/lang/Exception; {:try_start_1 .. :try_end_9} :catch_a    goto :goto_b    :catch_a    move-object p0, v0    :goto_b    if-nez p0, :cond_e    return-object v0    :cond_e    invoke-static {p0}, Lc/b/a/a/d;->w(Ljava/io/InputStream;)[B    move-result-object p0    if-eqz p0, :cond_3a    array-length p1, p0    if-lez p1, :cond_3a    const v1, 0x37e7f5    const/4 v2, 0x0    :goto_1b    if-ge v2, p1, :cond_3a    aget-byte v3, p0, v2    rem-int/lit8 v4, v2, 0x3    const/4 v5, 0x0    if-nez v4, :cond_29    shr-int/lit8 v4, v1, 0x10    and-int/lit16 v4, v4, 0xff    goto :goto_33    :cond_29    const/4 v6, 0x1    if-ne v4, v6, :cond_31    shr-int/lit8 v4, v1, 0x8    and-int/lit16 v4, v4, 0xff    goto :goto_33    :cond_31    and-int/lit16 v4, v1, 0xff    :goto_33    xor-int/2addr v3, v4    int-to-byte v3, v3    aput-byte v3, p0, v2    add-int/lit8 v2, v2, 0x1    goto :goto_1b    :cond_3a    return-object p0.end method
.method public static b(Ljava/lang/String;Landroid/content/Context;)[B    .registers 3    const-string p0, "lib.so"    invoke-static {p1, p0}, Lc/b/a/a/d;->u(Landroid/content/Context;Ljava/lang/String;)[B    move-result-object p0    return-object p0.end method.method public static u(Landroid/content/Context;Ljava/lang/String;)[B    .registers 11    const/4 v0, 0x0    :try_start_1    invoke-virtual {p0}, Landroid/content/Context;->getAssets()Landroid/content/res/AssetManager;    move-result-object p0    invoke-virtual {p0, p1}, Landroid/content/res/AssetManager;->open(Ljava/lang/String;)Ljava/io/InputStream;    move-result-object p0    :try_end_9    .catch Ljava/lang/Exception; {:try_start_1 .. :try_end_9} :catch_a    goto :goto_b    :catch_a    move-object p0, v0    :goto_b    if-nez p0, :cond_e    return-object v0    :cond_e    invoke-static {p0}, Lc/b/a/a/d;->w(Ljava/io/InputStream;)[B    move-result-object p0    if-eqz p0, :cond_3a    array-length p1, p0    if-lez p1, :cond_3a    const v1, 0x37e7f5    const/4 v2, 0x0    :goto_1b    if-ge v2, p1, :cond_3a    aget-byte v3, p0, v2    rem-int/lit8 v4, v2, 0x3    const/4 v5, 0x0    if-nez v4, :cond_29    shr-int/lit8 v4, v1, 0x10    and-int/lit16 v4, v4, 0xff    goto :goto_33    :cond_29    const/4 v6, 0x1    if-ne v4, v6, :cond_31    shr-int/lit8 v4, v1, 0x8    and-int/lit16 v4, v4, 0xff    goto :goto_33    :cond_31    and-int/lit16 v4, v1, 0xff    :goto_33    xor-int/2addr v3, v4    int-to-byte v3, v3    aput-byte v3, p0, v2    add-int/lit8 v2, v2, 0x1    goto :goto_1b    :cond_3a    return-object p0.end method

6.然后将lib.so(123456.txt)解压出来 ，使用py铺开一次异或加密，如果没有py环境可用附件中的html版

def encrypt_file(input_file, output_file):
    key = 0x37e7f5
    with open(input_file, rb) as f:
        data = f.read()
    encrypted = bytearray()
for i, byte inenumerate(data):
 # 使用密钥的不同字节铺开XOR
if i % 3 == 0:
            key_byte = (key >>16)&0xFF # 0x37
        elif i % 3 == 1:
            key_byte = (key >>8)&0xFF # 0xe7
else:
            key_byte = key &0xFF # 0xf5
        encrypted.append(byte ^ key_byte)
    with open(output_file, wb) as f:
        f.write(encrypted)
# 使用示例
encrypt_file(lib.so, lib.so)
def encrypt_file(input_file, output_file):    key = 0x37e7f5    with open(input_file, rb) as f:        data = f.read()       encrypted = bytearray()    for i, byte in enumerate(data):        # 使用密钥的不同字节铺开XOR        if i % 3 == 0:            key_byte = (key >> 16) & 0xFF  # 0x37        elif i % 3 == 1:            key_byte = (key >> 8) & 0xFF   # 0xe7        else:            key_byte = key & 0xFF          # 0xf5                encrypted.append(byte ^ key_byte)       with open(output_file, wb) as f:        f.write(encrypted)# 使用示例encrypt_file(lib.so, lib.so)
def encrypt_file(input_file, output_file):    key = 0x37e7f5    with open(input_file, rb) as f:        data = f.read()       encrypted = bytearray()    for i, byte in enumerate(data):        # 使用密钥的不同字节铺开XOR        if i % 3 == 0:            key_byte = (key >> 16) & 0xFF  # 0x37        elif i % 3 == 1:            key_byte = (key >> 8) & 0xFF   # 0xe7        else:            key_byte = key & 0xFF          # 0xf5                encrypted.append(byte ^ key_byte)       with open(output_file, wb) as f:        f.write(encrypted)# 使用示例encrypt_file(lib.so, lib.so)

7.加密后重命名替换回去 ，就落成了加密，到此落成

特别会谈明

注意别复制错代码，下方附件中有教程所用原代码。

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