landshark666 / passwordmaker-je

Java port of the Firefox PasswordMaker plugin
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display entropy of generated passwords (and of master password) #48

Open landshark666 opened 9 years ago

landshark666 commented 9 years ago

Original issue 48 created by landshark666 on 2014-05-31T00:46:35.000Z:

What is the expected output? What do you see instead? Currently pwmje uses a meter to display the strength of a generated password. It would be very useful if in addition pwmje computed and displayed the entropy (in bits) of the passwords. As per http://blog.webernetz.net/2013/07/30/password-strengthentropy-characters-vs-words/ , the entropy (in bits) of passwords is an excellent way to measure their strength.

"For example: A password with 8 characters has an entropy of 51 bits when chosen out of 83 chars, while it has 52 bits (only 1 more!) when chosen out of 94 chars. But if we extend the password to a length of 10, the 83 charset achieves an entropy of 63 bits, which is 12 bits more than before!"

What version of the product are you using? On what operating system? 0.7.2