install security certificate android

I. Vulnerability descriptionSecurity company Bluebox Security recently claims that they have discovered vulnerabilities that may affect 99% devices in the Android system. According to this statement, this vulnerability has existed since Android 1.6 (Donut). malware makers can use it to modify the APK code without cracking the encrypted signature, attackers can by

can be easily created by Kali Linux. Go fishing at the mall. Encryption algorithm RC4 is obsolete and not recommended for use. SHA256 best, not recommended MD5 SHA1 RSA to 2048 bit, to padding. The symmetric encryption key is not placed in the code. Can be negotiated after saving on local encrypted storage. AES does not use the ECB mode, initialization vectors do not use fixed constants. Securerandome do not use Setseed () and do not pass in fixed valu

First, prefaceIn the first two cracked articles, we introduced how to use dynamic debugging to crack the APK, one is through debugging Smali source code, one is through debugging so code to carry out the tracing of the crack, then today we on the two article crack method, Take a look at how to develop an application in Android, how to do a layer of security protection of our application, of course, most of

NotificationRecord{40dacad8 pkg=com.htc.android.psclient id=7f020010 tag=null pri=100} Then extract the package name. Here, the regular expression is used to extract the package name. If you want to know the regular expression, you can refer to my regular expression tutorial. Getting started with regular expressions (Java) The execution result here is (it seems that two notifications are prompted for one application) app:pkg=com.zdworks.android.toolboxapp:pkg=com.zdworks.android.toolboxapp:pkg=

reflection to execute the code. If the software does not verify the integrity of the SD card files before installation or loading, and determines whether the files may be tampered or forged, security issues may occur. Here, attackers can use the re-packaging method. Currently, a large number of Android malicious code has adopted this technology. The basic principle of re-packaging is, decomassembles the AP

By SuperHei_at_www.80vul.com I. Preface in the document "penetration test under WEB2.0" last year, we mentioned that in the 2.0 era, the attack methods of attackers are changed to the target identity of the attack. For developers, security issues in the development environment have been ignored, although such problems have been raised for many years. This article is based on a small issue in the android Dev

, guaranteed to appear in alphabetical order. People don't give you any guarantee. It is said that when running in windows, the results will be listed in alphabetical order. Unfortunately, Android is a Linux However, we can make a joke and print the above results. If your application is behind the scenes, change the package name until you can rank it first. Of course, this is not a good solution, but I have no better solutions. Answer question 2 now

AES key in the malware , but this requires some technical capability. One months ago, another Android malware reported by researchers could disable a user's phone and ask the user to pay a ransom for it. 8 months ago, a malware called Cryptolocker could permanently lock a PC 's hard drive unless the victim paid 300 USD fee. The app is not listed on the Google Play store, and is spread primarily through other channels. As a result,

 Certified Peer-to-peer Examples:Basic and Digest authentication for HTTPPAP and CHAP authentication for PPPMobile phone login password and hidden MMI designSeven Electronic signatures(a) signature to solve what problemSign what? Integrity Protection of the contents of the checkWho's signing? Non-repudiation of the signatory(ii) The dual nature of public key cryptography(iii) Electronic signature =hash+ Public key cryptographyrsa's low-efficiency features, resulting in even signatures that

terminal security problems, the emergence of a variety of problems resulting in a series of mobile security issues are increasingly showing the importance of the protection of Android encryption, mobile app app What should be the security ? to isolate these, the best thing is that users don't feel free to downlo

Learning Android Application Security Testing (Part1) from scratch)In this series of articles, using InsecureBankv2, an Android app with vulnerabilities, we can learn about the concepts related to Android app security. We will look at every problem from the perspective of a