This Applet will let you generate true random numbers not just pseudo random numbers. It works by measuring the time between your keystrokes accurate to the nanosecond (billionth of a second) and uses the variation in the low order 8 bits to generate the entropy needed. It displays the random numbers as they are generated in hex on the screen and if you give permission, also writes them as continuous stream of binary bytes to a random.pad file in the current directory.
This is a fairly slow way to generate random bytes, perhaps 16 a second. However, it is free and the source code is provided so you can see how it works and can verify it does nothing nefarious such as such as a copy of the bytes to the CIA (Central Intelligence Agency).
Why would you want to generate true random numbers?
MakeKey is also available with Java source to .
If this Applet does not work, check the Java console. You may have very old version of Java or none at all.
❘ precis ❘ screenshot ❘ browse source repository
for the current version of MakeKey.
Generates true random numbers useful in cryptography.
550K zip for MakeKey Java source, compiled class files, jar and documentation to run on your own machine either as an application or an Applet.
Runs on any OS that supports Java e.g. W2K, XP, W2003, Vista, W2008, W7-32, W7-64, W8-32, W8-64, W2012, W10-32, W10-64, Linux, LinuxARM, LinuxX86, LinuxX64, Ubuntu, Solaris, SolarisSPARC, SolarisSPARC64, SolarisX86, SolarisX64 and OSX.
First install the most recent Java.
To install, extract the zip download with WinZip, (or similar unzip utility) into any directory you please, often J:\ — ticking off the use folder names option.
To check out the corresponding source from the Subversion repository, use the TortoiseSVN repo-browser to
After you have installed the jar, you can run it as an application. Type:
java -jar J:\com\mindprod\makekey\makekey.jar
adjusting as necessary to account for where the jar file is.
download ASP PAD XML program description for the current version of MakeKey.
MakeKey is free. Full source included. You may even include the source code, modified or unmodified in free/commercial open source/proprietary programs that you write and distribute. Non-military use only.
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