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Do companies know your password?
Companies like Google and Apple really know all your passwords. If you use Chrome or Safari or Edge or Android or IOS to login to do anything, they know all your passwords. Privacy focused companies like Apple (or maybe Microsoft) store the passwords only on your devices not in the cloud.
Why is hash more efficient?
A primary impact of hash tables is their constant time complexity of O(1), meaning that they scale very well when used in algorithms. Searching over a data structure such as an array presents a linear time complexity of O(n). Simply put, using a hash table is faster than searching through an array.
Why are one way hash passwords more secure?
That just gives a hacker access to those applications as well. With a one-way hash password, a server does not store plain text passwords to authenticate a user. Here, a password has a hashing algorithm applied to it to make it more secure.
Why do you need to salt and hash passwords?
If your user table is exposed by an attacker, having the salt and the hash still means they need an incredible amount of computational power in order to find the password. It is common practice to just store the two fields in the same table.
Why do you need bcrypt to hash passwords?
Using a Key Factor, BCrypt is able to adjust the cost of hashing. With Key Factor changes, the hash output can be influenced. In this way, BCrypt remains extremely resistant to hacks, especially a type of password cracking called rainbow table. This Key Factor will continue to be a key feature as computers become more powerful in the future.
Which is the correct term for hashing passwords?
Cryptographic hash functions are functions which anybody can compute, efficiently, over arbitrary inputs. They are deterministic (same input yields same output, for everybody). In shorter words: if MD5 or SHA-1 is involved, this is password hashing, not password encryption. Let’s use the correct term.