Linked Questions

-1
votes
3answers
108 views

Can using very long, complex passwords with online accounts be detrimental? [duplicate]

In the case of data breach, long, complex passwords may draw more attention than simpler ones and the attacker might prioritize accounts with the most sophisticated passwords . Given that "it is ...
1176
votes
23answers
241k views

XKCD #936: Short complex password, or long dictionary passphrase?

How accurate is this XKCD comic from August 10, 2011? I've always been an advocate of long rather than complex passwords, but most security people (at least the ones that I've talked to) are against ...
78
votes
3answers
31k views

Does bcrypt have a maximum password length?

I was messing around with bcrypt today and noticed something: hashpw('testtdsdddddddddddddddddddddddddddddddddddddddddddddddsddddddddddddddddd', salt) Output: '$2a$15$jQYbLa5m0PIo7eZ6MGCzr....
23
votes
5answers
6k views

Does too long a salt reduce the security of a stored password hash?

Suppose we have passwords that are statistically 7-8 characters long. Is appending a 200 character long salt less secure than a 5 character salt, because of the similar hash function inputs? I was ...
26
votes
6answers
78k views

Recommend Length for Wi-FI PSK?

I currently have a network set up with WPA2 and AES encryption, the password is 8 characters long but was randomly generated and contains no dictionary words. However I'm concerned about the ...
19
votes
3answers
2k views

Does it make sense to choose a longer password than the output of a hash?

Let's take MD5 for example: It outputs a 128-bit hash. Does it make sense (in theory) to choose an input (password) which is itself longer than 128-bit? Does it increase the probability of a ...
2
votes
3answers
2k views

Why is there a Cap on Password length? [duplicate]

Why when we sign up on sites like Facebook and Gmail do our passwords have to be 8-12 characters in length, or some other cap? 8-12 spaces are finite, but you can make your passwords more "secure" by ...
0
votes
2answers
4k views

Long Passwords: How are they more secure? [duplicate]

Possible Duplicate: XKCD #936: Short complex password, or long dictionary passphrase? How are long passwords more secure? The only situation in which I can accept long passwords are more secure ...
1
vote
2answers
297 views

All hash algos shatter… so why not switch from golden bullet to scatter shot? [duplicate]

As of this morning any SHA-1 hash can officially be collided for as little as $110k in GPU power on Amazon. http://shattered.it/ https://arstechnica.com/security/2017/02/at-deaths-door-for-years-...
1
vote
3answers
222 views

Are longer passwords safer even if the encryption/database security used is compromised?

Let me preface this that I am having a lot of trouble wording my question. Hopefully my description will help clarify. I have always wondered if long passwords actually provide you any more security ...