All Hash Solutions on Gang of Coders

Total of 270 Hash Solutions

Best implementation for hashCode method for a collection

Java Hash Equals Hashcode

Is "double hashing" a password less secure than just hashing it once?

Security Hash Passwords Cryptography Password Hash

How can I see if a Perl hash already has a certain key?

Perl Hash Key Lookup

Ruby 1.9 hash with a dash in a key

Ruby Syntax Hash Ruby 1.9

How long to brute force a salted SHA-512 hash? (salt provided)

Hash Cryptography Salt Brute Force Sha

What is the best way to create a sparse array in C++?

C++Oop Data Structures Hash Maps

How do I implement salt into my login for passwords?

Security Hash Password Protection Salt

How can I SHA512 a string in C#?

safe enough 8-character short unique random string

Python Hash Random Cryptography

Set literal gives different result from set function call

Python Hash Set Python 2.x Python Internals

Calculating a SHA hash with a string + secret key in python

Python Hash Sha256

Change hash without reload in jQuery

Jquery Hash Reload Fragment Identifier window.location

Asking "is hashable" about a Python value

String similarity score/hash

Algorithm Hash Similarity

.NET implementation of scrypt

C#.Net Cryptography Hash Scrypt

Why is the size 127 (prime) better than 128 for a hash-table?

Algorithm Hash Primes

Convert a String to a byte array and then back to the original String

Java Android Byte Hash Arduino

Obtain SHA-256 string of a string

C#String Hash Sha256

Why are XOR often used in java hashCode() but another bitwise operators are used rarely?

Hash Hashcode Xor

How to hash a string in Android?

Java Android Hash Cryptography

Hashing an entire PHP array into a unique value

Php Arrays Hash

How to generate a unique hash code for string input in android...?

Java Android Hash Hashmap

Hash string into RGB color

Hash Colors Language Agnostic

Probability of collision when using a 32 bit hash

Algorithm Hash Collision Probability Crc

Why hashmap lookup is O(1) i.e. constant time?

Data Structures Hash Hashmap Hashtable Big O

What data type to use for hashed password field and what length?

Mysql Hash Types Passwords Cryptography

How do I generate a hashcode from a byte array in C#?

Best hashing algorithm in terms of hash collisions and performance for strings

C#Algorithm Hash

How to use sha256 in php5.3.0

Php Hash Sha256

Flattening hash into string in Ruby

How should I map long to int in hashCode()?

Java Algorithm Hash

Parsing URL hash/fragment identifier with JavaScript

Javascript Jquery Url Hash Fragment Identifier

Ruby: What is the easiest method to update Hash values?

Secure hash and salt for PHP passwords

Php Security Passwords Hash Protection

Coupon code generation

C#Algorithm Hash Coupon

CRC32 vs CRC32C?

What's the best way to create a short hash, similar to what tiny Url does?

C#.Net Hash Short Url

What is the best 32bit hash function for short strings (tag names)?

Algorithm Hash Tags 32 Bit

Unable to use dot syntax for ruby hash

Ruby Syntax Hash

What is the difference between "window.location.href" and "window.location.hash"?

Javascript Jquery Hash Href window.location

MD5 vs CRC32: Which one's better for common use?

Where do you store your salt strings?

Security Authentication Hash Cryptography Salt

How can I find the number of keys in a hash in Perl?

How to reliably hash JavaScript objects?

Javascript Json node.js Hash

How do I use Array#dig and Hash#dig introduced in Ruby 2.3?

Arrays Ruby Hash Splat

C++ - Why is boost::hash_combine the best way to combine hash-values?

C++C++11 Boost Hash

What is image hashing used for?

Algorithm Image Hash

Reversible hash function?

How does shovel (<<) operator work in Ruby Hashes?

Convert Ruby Hash into YAML

Why is Git not considered a "block chain"?

Git Hash Blockchain

What is Hash and Range Primary Key?

Hash Amazon Dynamodb Primary Key Database Nosql

Is it possible to decrypt MD5 hashes?

Hash Cryptography Md5 Encryption

How do I search within an array of hashes by hash values in ruby?

Ruby Search Hash Arrays

How can I generate an MD5 hash in Java?

Java Hash Md5 Hashcode

Is a Python dictionary an example of a hash table?

Python Hash Dictionary Hashmap Hashtable

Is it safe to ignore the possibility of SHA collisions in practice?

Why does Python's hash of infinity have the digits of π?

Python Math Hash Floating Point Pi

How does password salt help against a rainbow table attack?

Hash Cryptography Salt Rainbowtable

SHA512 vs. Blowfish and Bcrypt

Security Encryption Passwords Hash

How to replace a hash key with another key

Ruby on-Rails Ruby Ruby on-Rails-3 Hash

How do I use Node.js Crypto to create a HMAC-SHA1 hash?

Javascript node.js Algorithm Hash Node Crypto

How to get a specific output iterating a hash in Ruby?

Ruby Hash Output

Hash collision in git

Git Hash Sha1 Hash Collision

Fastest hash for non-cryptographic uses?

Php Database Security Hash

How to add new item to hash

Hashing a dictionary?

Python Hash Dictionary

Changing every value in a hash in Ruby

Hash and salt passwords in C#

C#Hash Passwords Salt

Generate a Hash from string in Javascript

Javascript Hash

Good Hash Function for Strings

Java Hash Hashtable Hashcode

Default implementation for Object.GetHashCode()

.Net Hash Gethashcode

How can I print the contents of a hash in Perl?

Perl Hash Printing

How can I update window.location.hash without jumping the document?

Javascript Jquery Hash Scrollto

Equivalent of .try() for a hash to avoid "undefined method" errors on nil?

Ruby on-Rails Ruby Ruby on-Rails-3 Hash

Simple (non-secure) hash function for JavaScript?

Javascript Hash Md5 Sha1

Why is XOR the default way to combine hashes?

Cryptography Bit Manipulation Hash Probability Xor

Best Practices: Salting & peppering passwords?

Security Hash Passwords Salt Password Hash

Is there hash code function accepting any object type?

Javascript Hash Set Hashcode

How many random elements before MD5 produces collisions?

Random Md5 Hash

What type of hash does WordPress use?

Php Wordpress Hash

How to sort a Ruby Hash by number value?

Is it worth hashing passwords on the client side

Passwords Client Side Hash

What is a elegant way in Ruby to tell if a variable is a Hash or an Array?

Ruby Arrays Hash

How do I create a SHA1 hash in ruby?

Salting Your Password: Best Practices?

Hash Cryptography Passwords Salt

Hashing a string with Sha256

C#String Hash Sha256

How can bcrypt have built-in salts?

Security Hash Internals Bcrypt

Why is '397' used for ReSharper GetHashCode override?

Hash Resharper Hash Code-Uniqueness

Storing SHA1 hash values in MySQL

Mysql Database Design Hash Sha1

Difference between Hashing a Password and Encrypting it

Security Language Agnostic Encryption Hash Passwords

Removing all empty elements from a hash / YAML?

Ruby on-Rails Ruby Hash Yaml

hash function for string

C Algorithm Hash Dictionary Hashtable

How to "EXPIRE" the "HSET" child key in redis?

Is SHA-1 secure for password storage?

Cryptography Hash Sha1

hash function in Python 3.3 returns different results between sessions

Python Security Hash Python 3.3 Hash Collision

How to hash a string into 8 digits?

Python Arrays Algorithm Random Hash

Is there an IDictionary implementation that, on missing key, returns the default value instead of throwing?

C#.Net Hash Dictionary

How to hash a password

C#Security Hash Passwords Windows Phone-7

Hashing a file in Python

Python Hash Md5 Sha1 Hashlib

Is MD5 still good enough to uniquely identify files?

Are there any SHA-256 javascript implementations that are generally considered trustworthy?

Hash Javascript Sha256 Sha2

Which cryptographic hash function should I choose?

C#.Net Hash Cryptography Cryptographic Hash-Function

Mismatch Detected for 'RuntimeLibrary'

C++Hash Compilation Sha256 Crypto++

What is a good Hash Function?

Algorithm Language Agnostic Hash

php mysqli_connect: authentication method unknown to the client [caching_sha2_password]

Php Mysql Hash Sha

When is CRC more appropriate to use than MD5/SHA1?

Hash Embedded Crc

Getting URL hash location, and using it in jQuery

Jquery Url Hash Fragment Identifier

Choosing between std::map and std::unordered_map

C++C++11 Hash Map Unordered Map

How to change Hash values?

Ruby Syntax Hash

How does Git compute file hashes?

Git Hash Sha1 Checksum Git Hash

Ruby Hash to array of values

Ruby Arrays Hash

Hash Code and Checksum - what's the difference?

Language Agnostic Hash Computer Science Checksum

What is the optimal length for user password salt?

Encryption Hash Salt

Is BCrypt a good hashing algorithm to use in C#? Where can I find it?

C#Hash Bcrypt bcrypt.net

Is calculating an MD5 hash less CPU intensive than SHA family functions?

Hash Cryptography Md5 Sha1 Sha2

Is there any difference between the `:key => "value"` and `key: "value"` hash notations?

Ruby Syntax Hash Ruby 1.9 Hashrocket

How to convert ActiveRecord results into an array of hashes

Arrays Activerecord Hash

PHP best way to MD5 multi-dimensional array?

Php Arrays Multidimensional Array Hash Md5

Print Current Mercurial Revision Hash?

Hash Mercurial Revision

How to create a HashMap with two keys (Key-Pair, Value)?

Java Hash Hashmap Hashcode

Best way to generate random file names in Python

Python Random Hash

How do I sort an array of hashes by a value in the hash?

Ruby Arrays Sorting Hash

Git Tag list, display commit sha1 hashes

Git Logging Hash Git Tag Verbose

Linux: compute a single hash for a given folder & contents?

Linux Bash Hash

What does hash do in python?

MD5 is 128 bits but why is it 32 characters?

Hash Cryptography Md5 Cryptographic Hash-Function

What integer hash function are good that accepts an integer hash key?

C Algorithm Hash

Random hash in Python

Python Hash Md5

How do I compare two hashes?

How to find the key of the largest value hash?

How to create a laravel hashed password

Php Security Laravel Hash Passwords

How to implement a good hash function in python

Meaning of Open hashing and Closed hashing

Is there an MD5 Fixed Point where md5(x) == x?

Hash string in c#

How to specialize std::hash<Key>::operator() for user-defined type in unordered containers?

C++Hash C++11 Unordered Map Unordered Set

Salt and hash a password in Python

Python Authentication Hash Passwords Salt

Why does Java's hashCode() in String use 31 as a multiplier?

Java String Algorithm Hash

What's the safest way to iterate through the keys of a Perl hash?

Perl Hash Iteration Each

Strange, unexpected behavior (disappearing/changing values) when using Hash default value, e.g. Hash.new([])

Making a python user-defined class sortable, hashable

Python Class Sorting Hash Magic Methods

Java Equivalent to Python Dictionaries

Java Python Hash Dictionary

Compile time string hashing

C++Metaprogramming C++11 Hash

Why can a Python dict have multiple keys with the same hash?

Python Hash Dictionary Set Equality

Fundamental difference between Hashing and Encryption algorithms

Security Encryption Hash Cryptography

How does a hash table work?

Data Structures Hash Hashtable Modulo

How to add to an existing hash in Ruby

Ruby New Operator Hash

How is a JavaScript hash map implemented?

Javascript Hash Hashmap

The necessity of hiding the salt for a hash

Security Encryption Hash Brute Force

How can I combine hashes in Perl?

Perl Dictionary Hash Merge

Best practices around generating OAuth tokens?

Security Encryption Oauth Hash

How do I extract a sub-hash from a hash?

Efficiently generate a 16-character, alphanumeric string

Python Hash Random

Magic number in boost::hash_combine

C++Algorithm Boost Hash Magic Numbers

Is Hash Rocket deprecated?

Ruby Syntax Hash Ruby 1.9 Hashrocket

Cleansing User Passwords

Php Sql Pdo Hash

When is hash(n) == n in Python?

Python Python 2.7 Python 3.x Hash Python Internals

Can two different strings generate the same MD5 hash code?

Hash Cryptography Md5 Hash Collision

How to elegantly rename all keys in a hash in Ruby?

How come MD5 hash values are not reversible?

Hash Cryptography Md5 Cryptographic Hash-Function

Hash table runtime complexity (insert, search and delete)

Algorithm Data Structures Hash Time Complexity Hashtable

Rails mapping array of hashes onto single hash

Ruby on-Rails Ruby Arrays Hash

SHA-256 or MD5 for file integrity

File Hash Md5 Sha256

HashSet vs. List performance

.Net Performance Collections List Hash

Hashing with SHA1 Algorithm in C#

C#Hash Byte Sha1 Hashcode

How to generate short uid like "aX4j9Z" (in JS)

Javascript Hash Guid

Why does tuple(set([1,"a","b","c","z","f"])) == tuple(set(["a","b","c","z","f",1])) 85% of the time with hash randomization enabled?

Python Hash Set Cpython Python Internals

Hash Table/Associative Array in VBA

Vba Hash Hashtable Associative Array

How do I combine hash values in C++0x?

C++C++11 Boost Hash Std

How to generate an MD5 file hash in JavaScript/Node.js?

Javascript node.js Hash Md5

How to build a Ruby hash out of two equally-sized arrays?

Ruby Arrays Hash

Add a fragment to the URL without causing a redirect?

Javascript Jquery Hash

How to hash long passwords (>72 characters) with blowfish

Php Security Hash Passwords Blowfish

Quick and Simple Hash Code Combinations

C#Algorithm Hash Hashcode

Non-random salt for password hashes

Security Authentication Hash Cryptography Password Protection

Hashable, immutable

Python Data Structures Hash Immutability

Ruby - Access multidimensional hash and avoid access nil object

Ruby Hash Conditional

How can I make a python dataclass hashable without making them immutable?

Python Python 3.x Hash Python Dataclasses

Should the hash code of null always be zero, in .NET

C#.Net Hash Null

Append key/value pair to hash with << in Ruby

How do I loop over a hash of hashes?

Ruby on-Rails Ruby Hash

Converting a md5 hash byte array to a string

C#Hash Cryptography Md5 Cryptographic Hash-Function

Why do salts make dictionary attacks 'impossible'?

Security Hash Salt Dictionary Attack

PHP short hash like URL-shortening websites

MurmurHash - what is it?

Hash Redis Murmurhash

Built in Python hash() function

Python Google App-Engine Hash

In Ruby, how do I make a hash from an array?

Ruby Arrays Hash

node.js hash string?

In Perl, how do I create a hash whose keys come from a given array?

Arrays Perl Hash

Why aren't Python sets hashable?

Python Hash Set

Types that define `eq` are unhashable?

Python Hash Python 3.x

Is it possible to get identical SHA1 hash?

Cryptography Hash Sha1 Checksum

RoR - MD5 generation

Ruby Hash Md5 Digest

How to get the MD5 hash of a file in C++?

Descending sort by value of a Hash in Ruby

Ruby Sorting Hash

Ruby: Creating a hash key and value from a variable in Ruby

Ruby Hash Syntax

Algorithm to compare two images in C#

How to decrypt a SHA-256 encrypted string?

Java Hash Cryptography

What is time complexity of a list to set conversion?

Python List Hash Set Time Complexity

What is the fastest hash algorithm to check if two files are equal?

When to use Struct instead of Hash in Ruby?

Ruby Hash Struct

Ruby on Rails: Submitting an array in a form

Ruby on-Rails Arrays Forms Hash

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

Hash Cryptography Terminology

Hashing arrays in Python

Python Arrays Hash

How can I replace a window's URL hash with another response?

Javascript Jquery Hash Replace Attr

Which is faster, Hash lookup or Binary search?

Algorithm Hash Hashmap Lookup Binary Search

How to SHA1 hash a string in Android?

Android Hash Sha1

Why should hash functions use a prime number modulus?

Language Agnostic Data Structures Hash

What is the length of a hashed string with SHA512?

Convert a Nokogiri document to a Ruby Hash

Xml Ruby Hash Nokogiri Libxml Ruby

Calculate MD5 checksum for a file

C#.Net Hash Md5

Options for caching / memoization / hashing in R

R Caching Hash Memoization Memoise

Ruby: Most concise way to use an ENV variable if it exists, otherwise use default value

Generating the SHA hash of a string using golang

Array of hashes to hash

Ruby Arrays Hash

Probability of SHA1 collisions

Hash Sha1 Probability

Ruby JSON parse changes Hash keys

Ruby on-Rails Ruby Json Hash

Are mutable hashmap keys a dangerous practice?

Hash Key Hashmap Hashcode Mutable

encrypt and decrypt md5

Php Security Hash Passwords Md5

What is the default hash function used in C++ std::unordered_map?

C++C++11 Hash Stl Unordered Map

Looking for a good hash table implementation in C

C String Hashtable Hash

Why are 5381 and 33 so important in the djb2 algorithm?

Algorithm Complexity & Security: MD5 or SHA1?

How to change hash keys from `Symbol`s to `String`s?

Ruby on-Rails Ruby Ruby on-Rails-3 Hash

Hash table - why is it faster than arrays?

Performance Algorithm Hash Hashtable

Collect values from an array of hashes

Ruby Arrays Hash Collect

Fast String Hashing Algorithm with low collision rates with 32 bit integer

C++Algorithm String Hash

How are hash functions like MD5 unique?

Hash Theory Md5 Uniqueidentifier

Rails load YAML to hash and reference by symbol

Ruby on-Rails Hash Yaml Symbols

Ruby Style: How to check whether a nested hash element exists

Ruby Hash Coding Style

What is the difference between hash salting and noncing?

Security Hash Cryptography

C++ unordered_map using a custom class type as the key

C++Hash G++Unordered Map Hashtree

What column type/length should I use for storing a Bcrypt hashed password in a Database?

Mysql Hash Types Storage Bcrypt

How to get the first key and value pair from a hash table in Ruby

How is GetHashCode() of C# string implemented?

C#.Net String Hash Gethashcode

How to call a method stored in a HashMap? (Java)

Java Hash Methods Invoke

What's the difference between a Docker image's Image ID and its Digest?

Docker Hash Sha256

Getting hash of a list of strings regardless of order

C#.Net vb.net String Hash

What's the difference between a hash and hash reference in Perl?

Perl Hash Language Features Hash Reference

TypeError: unhashable type: 'dict', when dict used as a key for another dict

Python Json Hash

What is the best way to create a random hash/string?

Php Session Hash Md5

GetHashCode() on byte[] array

Performance of key lookup in JavaScript object

Javascript Dictionary Hash

How do I fetch multiple hash values at once?

Ruby on-Rails Ruby Hash Destructuring

What are Salt Rounds and how are Salts stored in Bcrypt?

Hash Passwords Password Protection Bcrypt Salt

What hashing function does Java use to implement Hashtable class?

Java Algorithm Hashtable Hash

Pure-Ruby concurrent Hash

Ruby Concurrency Hash Locking

What is a good 64bit hash function in Java for textual strings?

Java String Hash 64 Bit Collision

How to send password securely via HTTP using Javascript in absence of HTTPS?

Security Http Hash Password Protection Hmac

What is the true difference between a dictionary and a hash table?

Python Data Structures Hash Dictionary Hashtable

Java calculate hex representation of a SHA-1 digest of a String

Hash : How does it work internally?

Java Algorithm Data Structures Hash

Python dictionary : TypeError: unhashable type: 'list'

Python Hash Dictionary

How to elegantly symbolize_keys for a 'nested' hash

Ruby on-Rails Ruby Hash Dry

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

asp.net Authentication Hash Membership

Use Objects.hash() or own hashCode() implementation?

How can I hash passwords in postgresql?

Security Postgresql Hash Cryptography Salt

Is time() a good salt?

Php Security Hash Passwords Salt

How can I compute a SHA-2 (ideally SHA 256 or SHA 512) hash in iOS?

Objective C Ios Security Hash Sha256

HMAC-SHA1: How to do it properly in Java?

Java Hash Sha1 Hmac

How do I convert a Ruby hash so that all of its keys are symbols?

Reason for the number 5381 in the DJB hash function?

Algorithm Hash Primes

How to sum all the values in a dictionary?

Python Dictionary Hash Sum

Why and how are Python functions hashable?

Time complexity of accessing a Python dict

Python Hash Dictionary Complexity Theory

Sum the value of array in hash

Ruby: merge nested hash

Ruby Hash Merge Nested

how to check if a hash is empty in perl

How to generate hash number of a string in Go?