hash Questions
7
Solved
How do I calculate an MD5 of a string client side in Microsoft Access?
5
Solved
Related, but not a duplicate of: How to define hash tables in Bash?
I can define and use a bash hash, but I am unable to export it, even with the -x flag. For example, the following works to expor...
5
I am using the djb2 algorithm to generate the hash key for a string which is as follows
hash(unsigned char *str)
{
unsigned long hash = 5381;
int c;
while (c = *str++)
hash = ((hash << ...
Loquacity asked 3/4, 2010 at 15:32
28
Solved
I need to convert strings to some form of hash. Is this possible in JavaScript?
I'm not utilizing a server-side language so I can't do it that way.
Seismology asked 30/9, 2011 at 21:52
4
Solved
if (strpos(htmlentities($storage->getMessage($i)),'chocolate'))
Hi, I'm using gmail oauth access to find specific text strings in email addresses. Is there a way to find text instances quicke...
Willianwillie asked 6/10, 2010 at 15:17
4
Solved
I have 2 fixed width files like below (only change is Date value starting at position 14).
sample_hash1.txt
GOKULKRISHNA 04/17/2018
ABCDEFGHIJKL 04/17/2018
111111111111 04/17/2018
sample_hash2.txt...
4
Solved
I have an array of hashes:
arr = [ {:a => 1, :b => 2}, {:a => 3, :b => 4} ]
What I want to achieve is:
arr.map{|x| x[:a]}.reduce(:+)
but I think it's a bit ugly, or at least not t...
12
How do I make an MD5 hash of a string with Delphi?
Figurehead asked 12/9, 2008 at 10:26
3
Using the package hashids, I can obtain hashes (with encode and decode) from numbers.
var Hashids = require("hashids"),
hashids = new Hashids("this is my salt", 8);
var id ...
9
Solved
I'm using this code to calculate hash value for a file:
m = hashlib.md5()
with open("calculator.pdf", 'rb') as fh:
while True:
data = fh.read(8192)
if not data:
break
m.update(data)
hash_va...
10
Solved
This code is supposed to hash a password with a salt. The salt and hashed password are being saved in the database. The password itself is not.
Given the sensitive nature of the operation, I wante...
Historiography asked 7/3, 2012 at 0:34
19
Solved
I am using php mysqli_connect for login to a MySQL database (all on localhost)
<?php
//DEFINE ('DB_USER', 'user2');
//DEFINE ('DB_PASSWORD', 'pass2');
DEFINE ('DB_USER', 'user1');
DEFINE ('DB_P...
2
Solved
The following will work, but I'd rather not need to repeat the __hash__ in each subclass. Is there a way to tell the dataclass to inherit the hash function (i.e. not set it to None)?
from dataclas...
Theodosia asked 31/12, 2018 at 18:14
5
Solved
I'm looking for a generic way to prevent multiple form submissions. I found this approach which looks promising. Whereas I do not want to include this snippet in all of my views. Its probably easie...
5
Solved
Consider this code:
h = Hash.new(0) # New hash pairs will by default have 0 as values
h[1] += 1 #=> {1=>1}
h[2] += 2 #=> {2=>2}
That’s all fine, but:
h = Hash.new([]) # Empty array ...
12
Say I have an object that stores a byte array and I want to be able to efficiently generate a hashcode for it. I've used the cryptographic hash functions for this in the past because they are easy ...
9
Solved
I am new to Ruby and trying to write a method that will return an array of the most common word(s) in a string. If there is one word with a high count, that word should be returned. If there are tw...
3
Solved
I've written a class whose .__hash__() implementation takes a long time to execute. I've been thinking to cache its hash, and store it in a variable like ._hash so the .__hash__() method would simp...
3
Solved
If we use a string as a Hash key, Ruby needs to evaluate the string and look at it's contents (and compute a hash function on that) and compare the result against the (hashed) values of the keys wh...
Teledu asked 17/5, 2016 at 17:37
14
I need to expire all keys in redis hash, which are older than 1 month.
7
Solved
I'm writing a tool in C# to find duplicate images. Currently I create an MD5 checksum of the files and compare those.
Unfortunately, the images can be:
Rotated by 90 degrees.
Have different dim...
4
Solved
I've implemented a BloomFilter in python 3.3, and got different results every session. Drilling down this weird behavior got me to the internal hash() function - it returns different hash values fo...
Stative asked 17/12, 2014 at 9:48
4
Solved
I'm using hashing of strings for seeding random states in the following way:
context = "string"
seed = hash(context) % 4294967295 # This is necessary to keep the hash within allowed seed values
np...
Walkthrough asked 15/1, 2015 at 0:20
4
Solved
Is there a length limit for the fragment part of an URL (also known as the hash)?
Warily asked 15/10, 2009 at 11:24
4
Solved
I am currently working on a collection library for my custom programming language. I already have several data types (Collection, List, Map, Set) and implementations for them (mutable and immutable...
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