Top "Hash" questions

A hash function is any well-defined procedure or mathematical function that converts a large amount of data into a small datum, usually a single integer.

How can I hash passwords in postgresql?

I need to hash some passwords with salt on postgresql, and I haven't been able to find any relevant documentation …

security postgresql hash cryptography salt
How do I hash a string with Delphi?

How do I make an MD5 hash of a string with Delphi?

delphi hash cryptography md5
Salting Your Password: Best Practices?

I've always been curious... Which is better when salting a password for hashing: prefix, or postfix? Why? Or does it …

hash cryptography passwords salt
How to call a method stored in a HashMap? (Java)

I have a list of commands (i, h, t, etc) that the user will be entering on a command line/…

java hash methods invoke
Converting a md5 hash byte array to a string

How can I convert the hashed result, which is a byte array, to a string? byte[] bytePassword = Encoding.UTF8.GetBytes(…

c# hash cryptography md5 cryptographic-hash-function
Calculating a SHA hash with a string + secret key in python

Amazon Product API now requires a signature with every request which I'm trying to generate ushing Python. The step I …

python hash sha256
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 …

hash sha
What is the Difference between a Hash and MAC (Message Authentication code)?

What is the Difference between a Hash and MAC (Message Authentication code)? By their definitions they seem to serve the …

hash cryptography terminology
What is default hash algorithm that ASP.NET membership uses?

What is default hash algorithm that ASP.NET membership uses? And how can I change it?

asp.net authentication hash membership
Looking for a good hash table implementation in C

I am primarily interested in string keys. Can someone point me towards a library?

c string hashtable hash