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How to encrypt Android apk and Androidapk After a busy week, I finally had time to wait and write something. We will continue to introduce another method to prevent decompilation of android apk. The first two articles we talked about shelling Technology (http://my.oschina.net/u/2323218/blog/393372) and runtime modification bytecode (http://my.oschina.net/u/232321
After a busy week and finally having time to write something, we continue to introduce another way for Android APK to prevent anti-compilation technology. Top two we talked about Shell technology (http://my.oschina.net/u/2323218/blog/393372) and runtime modification bytecode (http://my.oschina.net/u/2323218/blog/396203) , if there is something you can see in the first two articles of my blog about both of these technologies. Next we will introduce ano
to the environment variable path, open cmd input D:\>keytool-genkey-alias demo.keystore-keyalg rsa-validity 40000-keystore demo.keystore/* Description:-genkey generate key-al IAS Demo.keystore alias Demo.keystore-keyalg RSA uses the RSA algorithm to encrypt the signature-validity 40000 expiration 4,000 days-keystore Demo.key Store */d:\>jarsigner-verbose-keystore Demo.keystore-signedjar demo_signed.apk demo.apk demo.keystore/* Description:-verbose ou
Today, you have a need to download an apk file. After the download is complete, the text of the button changes to click Install. After the installation is complete, the button changes to open. Here is how to download the apk: /*** Return the downloaded File after the following Apk is downloaded in the background. ** @ param httpUrl * @ return */private File down
Obtain the APK information (package name, version, version number, size, permission...) in a pure JAVA environment, and obtain the APK information on the PC end in pure JAVA language. The apk package name Obtain APK information in a pure JAVA environment: package name, version, version number, size, permission... To ob
After a busy week and finally having time to write something, we continue to introduce another way for Android APK to prevent anti-compilation technology. Top two we talked about Shell technology (http://my.oschina.net/u/2323218/blog/393372) and runtime modification bytecode (http://my.oschina.net/u/2323218/blog/396203) , if there is something you can see in the first two articles of my blog about both of these technologies. Next we will introduce ano
the source code.However, commands are usually easy to crack. Later, I saw it in the snow Security Forum.Love encryption app encryption platform, trial, I feel pretty good, has been in use. You can try.How does Android prevent the apk program from being decompiled? Preventing mobile games from being cracked, except for the proguard code obfuscation method DEX encryption protection !!! It is the advanced encryption protection for the Android
After a busy week and finally having time to write something, we continue to introduce another way for Android APK to prevent anti-compilation technology. Top two we talked about Shell technology (http://my.oschina.net/u/2323218/blog/393372) and runtime modification bytecode (http://my.oschina.net/u/2323218/blog/396203) , if there is something you can see in the first two articles of my blog about both of these technologies. Next we will introduce ano
-alias demo. keystore-keyalg RSA-validity 40000-keystore demo. keystore/* Description:-genkey generates the key-alias demo. keystore alias demo. keystore-keyalg RSA uses RSA Algorithm Encrypt the signature-validity 40000 validity period 4000 days-keystore demo. keystore */D: \> jarsigner-verbose-keystore demo. keystore-signedjar demo_signed.apk demo.apk demo. keystore/* Description:-details of the signature output by verbose-keystore demo. keystore lo
After a busy week and finally having time to write something, we continue to introduce another way for Android APK to prevent anti-compilation technology. The first two we talked about the shell technology and the runtime to modify the bytecode, if there is not clear can see my blog in the first two of the introduction of these two technologies. Next we will introduce another easy-to-use technology that prevents a
Concepts and commands related to apk signature and apk Signature 1. Concepts 1. Message Digest-Message Digest Message Digest: execute a one-way hash function on the message data to generate a fixed-length hash value, which is also a message digest and a digital fingerprint. Message Digest features: (1) No matter how long the input message is, the length of the calculated message digest is always fixed; (2)
When you process some files, if you think it is important, you will set a password for the file, just like setting a password for your phone. If you need to view the password, you need to enter the password, in fact, the principles are similar. How can we encrypt a PDF file? Next let's take a look at the small series of operation methods. 1: In the first step, we can create a new folder and add the PDF file to be encrypted. Of course, you do not need
1. Download let ' s encrypt2. Generate the key, call before you need to stop NginxCertbot certonly--standalone-d www. domain name 1.com-d www. domain name 2.comThe build succeeds with the following promptsIMPORTANT NOTES:-congratulations! Your certificate and chain has been saved at/etc/letsencrypt/live/"Here is your domain name"/FULLCHAIN.PEM. Your cert would expire on "here is the expiry time". To obtain a new or tweaked version of this certificate on the future, simply run Certbot-auto
[Android's Beauty] APK slimming, reduce the size of the APK Keep your apk files as small as possible, and you should remove unused code and resource files. So this section describes how to make the apk smaller, better performance, the download conversion rate is higher, and how to specify the code and resource
How to compress files, how to encrypt compressed files, and how to encrypt compressed files We often encounter File compression and file encryption in our daily lives and work. Sometimes, they simply don't want others to see it; sometimes, they provide downloads but cannot share them, and they are used to get profits. So how to compress a file or a folder? At the same time, how can we
Use ascii to encrypt strings and ascii to encrypt strings Algorithm: replace the original letter with the fourth letter after the original letter.Plaintext: China ciphertext: Glmre # Include
This article introduces how to use php to automatically extract apk package information after uploading apk (for example, download). If you need a friend, refer to the following to enter the company's first project: market. Therefore, the background must upload APK software. For convenience, after an APK is uploaded, t
1, first right click on the folder to encrypt, select the property options, as shown: 2, click the Advanced button in the Folder option, as shown in the picture: 3, choose the option as shown in the picture: 4. Select hidden option and click OK button, as shown in figure:
1, we open the phone oppo R9 mobile phone with the butler, click "Privacy",-"program encryption" effect as shown below 2, there is an "application encryption" the default is not open, we just open on it, now we take a look at how to open, click to enter can choose their own encryption of the application, if the album encryption, select album Confidential 3, then set up to encrypt the program click "Start Encryption", and then we need to
The first project to enter the company is to do market market. So backstage to upload apk software and so on. In order to facilitate, upload APK after the system automatically extracts APK files related information, such as: APK package name, product name, version information, APK
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