Swift实现代码混淆详解

目录

• 1. 新建相关文件
• 2. 导入文件至项目
• 3. 修改项目配置
  • 3.1 修改TARGETS配置
  • 3.2 修改指令文件
    • 3.2.1 打开confuse.sh文件，复制并粘贴一下文本
    • 3.2.2 修改指令文件权限
  • 3.3 修改需要混淆的方法名文件
  • 3.4 修改pch文件配置
• 4. 运行效果

$ cd ~/Desktop/ceshi
$ touch confuse.sh
$ touch func.list

$PROJECT_DIR/confuse.sh

#!/usr/bin/env bash

TABLENAME=symbols
SYMBOL_DB_FILE="symbols"
STRING_SYMBOL_FILE="func.list"
HEAD_FILE="$PROJECT_DIR/$PROJECT_NAME/codeObfuscation.h"
export LC_CTYPE=C

#维护数据库方便日后作排重
createTable()
{
    echo "create table $TABLENAME(src text, des text);" | sqlite3 $SYMBOL_DB_FILE
}

insertValue()
{
    echo "insert into $TABLENAME values("$1" ,"$2");" | sqlite3 $SYMBOL_DB_FILE
}

query()
{
    echo "select * from $TABLENAME where src="$1";" | sqlite3 $SYMBOL_DB_FILE
}

ramdomString()
{
    openssl rand -base64 64 | tr -cd "a-zA-Z" |head -c 16
}

rm -f $SYMBOL_DB_FILE
rm -f $HEAD_FILE
createTable

touch $HEAD_FILE
echo "#ifndef Demo_codeObfuscation_h
#define Demo_codeObfuscation_h" >> $HEAD_FILE
echo "//confuse string at `date`" >> $HEAD_FILE
cat "$STRING_SYMBOL_FILE" | while read -ra line; do
    if [[ ! -z "$line" ]]; then
        ramdom=`ramdomString`
        echo $line $ramdom
        insertValue $line $ramdom
        echo "#define $line $ramdom" >> $HEAD_FILE
    fi
done
echo "#endif" >> $HEAD_FILE

sqlite3 $SYMBOL_DB_FILE .dump

$ cd ~/Desktop/ceshi
$ chmod 755 confuse.sh

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#ifndef PrefixHeader_pch
#define PrefixHeader_pch

// Include any system framework and library headers here that should be included in all compilation units.
#import "CodeObfuscation.h"

#endif /* PrefixHeader_pch */