Does server stores my previos passwords?
When I change my password on some web server like email, cloud, social network and try to use my previous password, server denied it with message "Don't use your previous passwords".
- Does it mean that server stores my my previous passwords? How does it secure?
passwords
asked 2 hours ago
sluge
401144
add a comment |
When I change my password on some web server like email, cloud, social network and try to use my previous password, server denied it with message "Don't use your previous passwords".
- Does it mean that server stores my my previous passwords? How does it secure?
passwords
asked 2 hours ago
sluge
401144
add a comment |
When I change my password on some web server like email, cloud, social network and try to use my previous password, server denied it with message "Don't use your previous passwords".
- Does it mean that server stores my my previous passwords? How does it secure?
passwords
asked 2 hours ago
sluge
401144
When I change my password on some web server like email, cloud, social network and try to use my previous password, server denied it with message "Don't use your previous passwords".
- Does it mean that server stores my my previous passwords? How does it secure?
passwords
passwords
asked 2 hours ago
sluge
401144
asked 2 hours ago
sluge
401144
asked 2 hours ago
sluge
401144
asked 2 hours ago
sluge
401144
asked 2 hours ago
sluge
401144
401144
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Hash functions deterministic functions, same input results always the same output. They can store the previous hash values of your old passwords and compare them with your new proposed password's hash. To achieve this, they also need to store at least the salt values, too. This means the salt and other parameters has to be the same for you in this site.
From here, without the server side code, we cannot say more than like this.
answered 2 hours ago
kelalaka
6251615
1
Especially if salt is a user name or user's email.
– sluge
2 hours ago
add a comment |
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1 Answer
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oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Hash functions deterministic functions, same input results always the same output. They can store the previous hash values of your old passwords and compare them with your new proposed password's hash. To achieve this, they also need to store at least the salt values, too. This means the salt and other parameters has to be the same for you in this site.
From here, without the server side code, we cannot say more than like this.
answered 2 hours ago
kelalaka
6251615
1
Especially if salt is a user name or user's email.
– sluge
2 hours ago
add a comment |
Hash functions deterministic functions, same input results always the same output. They can store the previous hash values of your old passwords and compare them with your new proposed password's hash. To achieve this, they also need to store at least the salt values, too. This means the salt and other parameters has to be the same for you in this site.
From here, without the server side code, we cannot say more than like this.
answered 2 hours ago
kelalaka
6251615
1
Especially if salt is a user name or user's email.
– sluge
2 hours ago
add a comment |
Hash functions deterministic functions, same input results always the same output. They can store the previous hash values of your old passwords and compare them with your new proposed password's hash. To achieve this, they also need to store at least the salt values, too. This means the salt and other parameters has to be the same for you in this site.
From here, without the server side code, we cannot say more than like this.
answered 2 hours ago
kelalaka
6251615
Hash functions deterministic functions, same input results always the same output. They can store the previous hash values of your old passwords and compare them with your new proposed password's hash. To achieve this, they also need to store at least the salt values, too. This means the salt and other parameters has to be the same for you in this site.
From here, without the server side code, we cannot say more than like this.
answered 2 hours ago
kelalaka
6251615
edited 2 hours ago
answered 2 hours ago
kelalaka
6251615
answered 2 hours ago
kelalaka
6251615
answered 2 hours ago
kelalaka
6251615
6251615
1
Especially if salt is a user name or user's email.
– sluge
2 hours ago
add a comment |
1
Especially if salt is a user name or user's email.
– sluge
2 hours ago
1
1
Especially if salt is a user name or user's email.
– sluge
2 hours ago
Especially if salt is a user name or user's email.
– sluge
2 hours ago
add a comment |
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