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Thread: Password complexity calculator

  1. #16
    phpMaster
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    I have been searching for Password Strength testers for a few days.
    There are many, but most of them are doubtful in the result.

    But now I have finally found a good one:
    http://rumkin.com/tools/password/passchk.php
    He gives the result as an Entropy value.
    I recommend that one!
    Apache-2.4.28 (Win64) / PHP-7.1.10 / MySQL-5.7.19 / phpMyAdmin-4.7.4

  2. #17
    Pedantic Curmudgeon Weedpacket's Avatar
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    Let's just say, what with my phone having a virtual keyboard and all, on it I use passwords like "🌿4Go2🛏" (though that of course isn't one of them).
    Last edited by Weedpacket; 10-03-2017 at 09:40 PM.
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  3. #18
    phpMaster
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    Quote Originally Posted by Weedpacket View Post
    Let's just say, what with my phone having a virtual keyboard and all, on it I use passwords like "🌿4Go2🛏" (though that of course isn't one of them).
    The result of your password, Weedpacket,
    using the password tester in my post above:
    Length: 8
    Strength: Reasonable - This password is fairly secure cryptographically and skilled hackers may need some good computing power to crack it. (Depends greatly on implementation!)
    Entropy: 38.8 bits
    Charset Size: 222 characters
    What is noticable is the charset used in the password.
    It has so many chars as 222.
    Apache-2.4.28 (Win64) / PHP-7.1.10 / MySQL-5.7.19 / phpMyAdmin-4.7.4

  4. #19
    Pedantic Curmudgeon Weedpacket's Avatar
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    Length 8, huh? I only count six characters: "🌿", "4", "G", "o", "2", and "🛏". Of course, JavaScript counts the first and last as two each.

    The character set was determined as: 26 upper case letters, 26 lower case letters, 10 digits, and 160 characters from outside printable ASCII (i.e. characters 0x00 through 0x1f inclusive, and 0x7f and 0xff inclusive). But 🛏 for example, is represented by the two characters 0xd83d and 0xdecf, both obviously outside those ranges. The program should have counted the length as ten characters, for an entropy of 47.9 bits.

    What's also odd is that the code reckons that `~-_=+[{]}\|;:'",<.>/? contains 20 characters.

    It should go without saying that my real passwords tend to be a bit longer (the password I use for this site is over 20 characters).
    Last edited by Weedpacket; 10-04-2017 at 01:02 PM.
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