OpenSSL Checker

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Attention!

This app does not work with Android6 later.
In Android6 later, OpeSSL seems to have changed to other libraries.
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This app will display a variety of information of the SSL / TLS communications using OpenSSL library. Also it will display it if there is a risk to OpenSSL library.


The Android handset manufacturers will be able to freely customize the OpenSSL library. Therefore, the specification of the terminal Android OpenSSL library may be different from the standard specification.


This app will show the degree of customizable lebel of OpenSSL library which is built into the Android terminal, comparing to standard OpenSSL library. This app has its own OpenSSL library of standard specification, and compares the functionality of the OpenSSL library of Android OS and its own OpenSSL library. In addition, by communicating with "https:// WEB site", this app will display SSL/TLS information comparing communication (SSL negotiation time, download speed, cipher suite, vulnerability, and so on).


This app will display the following information. It displays information about both the Android system OpenSSL and its own OpenSSL.


* Static information
･ Version of OpenSSL
･ Version of SSL/TLS available
･ HeartBeat availability
･ The number and name of the library expansion / compression


* Dynamic information
･ Name resolution time
･ SSL negotiation time
･ Time to transmit and return
･ Download Speed
･ The downloaded data size
･ HTTP status code
･ HTTP Content-Type
･ Remote IP address
･ Remote port number
･ Local IP address
･ Local port number
･ SSL cipher suite
･ SSL version
･ Processing compression/decompression
･ Number of bits of the secret cryptographic key


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Technical Notes

･ "OpenSSL Checker" is statically linked the following libraries: OpenSSL, libcurl, zlib.
･ Therefore, the size of the apk file is large.
･ It also has a dynamic link OpenSSL in Android OS.
･ The package name of "OpenSSL Checker" is "jp.foosys.osslchk".
･ The apk file name is "OpenSSLChecker.apk".
･ According to the settings of the Android OS, "OpenSSL Checker" will display the Japanese and English.
･ Other than the Internet access permission is not used.
･ "OpenSSL Checker" will not attempt to obtain or collect personal information of any kind.


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Copyright and Disclaimer

Copyright (C) 2012-2015 foosys
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damage arising from the use of this software.


Thank you.