hash Archives - Page 2 of 4

How does password salt help against a rainbow table attack?

I’m having some trouble understanding the purpose of a salt to a password. It’s my understanding that the primary use is to hamper ...

May 24, 2022
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Why does Python’s hash of infinity have the digits of π?

The hash of infinity in Python has digits matching pi: >>> inf = float('inf') >>> hash(inf) 314159 >>> int(math.pi*1e5) 314159 Is that just ...

May 23, 2022
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Is a Python dictionary an example of a hash table?

One of the basic data structures in Python is the dictionary, which allows one to record “keys” for looking up “values” of any ...

May 23, 2022
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Is it safe to ignore the possibility of SHA collisions in practice?

Let’s say we have a billion unique images, one megabyte each. We calculate the SHA-256 hash for the contents of each file. The ...

May 23, 2022
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How do I search within an array of hashes by hash values in ruby?

I have an array of hashes, @fathers. a_father = { "father" => "Bob", "age" => 40 } @fathers << a_father a_father = { ...

May 21, 2022
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Is it possible to decrypt MD5 hashes?

Someone told me that he has seen software systems that: retrieve MD5 encrypted passwords from other systems; decrypt the encrypted passwords and store ...

May 19, 2022
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What is Hash and Range Primary Key?

I am not able to understand what Range / primary key is here in the docs on Working with Tables and Data in ...

May 19, 2022
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Why is Git not considered a “block chain”?

Git’s internal data structure is a tree of data objects, wherein each objects only points to its predecessor. Each data block is hashed. ...

May 18, 2022
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Where do you store your salt strings?

I’ve always used a proper per-entry salt string when hashing passwords for database storage. For my needs, storing the salt in the DB ...

May 18, 2022
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What data type to use for hashed password field and what length?

I’m not sure how password hashing works (will be implementing it later), but need to create database schema now. I’m thinking of limiting ...

May 17, 2022
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