c# Programming Glossary: hash

http://stackoverflow.com/questions/11775594/how-to-secure-an-asp-net-web-api

consumer which both consumer and server both know to hmac hash a message HMAC256 should be used. Most of cases hashed password.. hmac hash a message HMAC256 should be used. Most of cases hashed password of consumer is used as secret key. The message normally.. to web server after building the signature output of hmac hash the template of HTTP request User Agent agent Host host Timestamp..

Distinct() with lambda?

http://stackoverflow.com/questions/1300088/distinct-with-lambda

must have the same GetHashCode return value or else the hash table used internally by Distinct will not function correctly..

Hash and salt passwords in C#

http://stackoverflow.com/questions/2138429/hash-and-salt-passwords-in-c-sharp

salt string saltAndPwd String.Concat pwd salt string hashedPwd FormsAuthentication.HashPasswordForStoringInConfigFile.. saltAndPwd sha1 return hashedPwd Is there any other C# method for hashing passwords and.. sha1 return hashedPwd Is there any other C# method for hashing passwords and adding salt to it c# hash passwords salt ..

How do you sort a dictionary by value?

http://stackoverflow.com/questions/289/how-do-you-sort-a-dictionary-by-value

values and need to sort it by value. For example I have a hash of words and their frequencies and want to order them by frequency...

Why is Dictionary preferred over hashtable?

http://stackoverflow.com/questions/301371/why-is-dictionary-preferred-over-hashtable

is Dictionary preferred over hashtable In most of programming languages dictionaries are preferred.. of programming languages dictionaries are preferred over hashtables. What are the reasons behind that c# .net vb.net data.. share improve this question FWIW a Dictionary is a hash table. If you meant why do we use the Dictionary class instead..

Why is it important to override GetHashCode when Equals method is overridden?

http://stackoverflow.com/questions/371328/why-is-it-important-to-override-gethashcode-when-equals-method-is-overridden

Why is it important to override GetHashCode c# override hashcode share improve this question Yes it is important if your.. IEqualityComparer T to group items into buckets. If the hash code for two items does not match they may never be considered.. collisions i.e. so that new Foo 3 5 has a different hash code to new Foo 5 3 int hash 13 hash hash 7 field1.GetHashCode..

How can I create a Product Key for my C# App

http://stackoverflow.com/questions/453030/how-can-i-create-a-product-key-for-my-c-sharp-app

that using some crypto algorithm with a fixed key or hash it. Then you just verify it within your program. One way to..

is “else if” faster than “switch() case”? [duplicate]

http://stackoverflow.com/questions/767821/is-else-if-faster-than-switch-case

than five items it's implemented using a lookup table or a hash list. This means that all items get the same access time compared..

Is it possible to combine hash codes for private members to generate a new hash code?

http://stackoverflow.com/questions/1079192/is-it-possible-to-combine-hash-codes-for-private-members-to-generate-a-new-hash

for which I want to generate a unique hash override GetHashCode but I want to avoid overflows or something unpredictable... int hash 0 foreach string item in collection hash item.GetHashCode collection.Count return hash EDIT Thanks for answers so.. the Jenkins One at a time hash. private static unsafe void Hash byte d int len ref uint h for int i 0 i len i h d i h h 10..

How do I generate a hashcode from a byte array in c#

http://stackoverflow.com/questions/16340/how-do-i-generate-a-hashcode-from-a-byte-array-in-c-sharp

i return false return true public override int GetHashCode return BitConverter.ToInt32 new MD5CryptoServiceProvider.. BitConverter.ToInt32 new MD5CryptoServiceProvider .ComputeHash data 0 Any thoughts dp You are right that I missed a check in.. example byte b1 new byte 1 byte b2 new byte 1 int h1 b1.GetHashCode int h2 b2.GetHashCode With that code despite the two byte..

Abuse of C# lambda expressions or Syntax brilliance?

http://stackoverflow.com/questions/1718037/abuse-of-c-sharp-lambda-expressions-or-syntax-brilliance

I had to dig into this and found where the 'magic' happens Hash params Func object TValue hash foreach var func in hash Add..

How to get Color from Hexadecimal color code using .NET?

http://stackoverflow.com/questions/2109756/how-to-get-color-from-hexadecimal-color-code-using-net

How can I get Color from a Hexadecimal color code or say Hash code e.g. #FFDFD991 I am reading a file and getting Hexadecimal..

What is the easiest way to encrypt a password when I save it to the registry?

http://stackoverflow.com/questions/212510/what-is-the-easiest-way-to-encrypt-a-password-when-i-save-it-to-the-registry

this question You don't decrypt authentication passwords Hash them using something like the MD5 provider and when you have.. yourString data x.ComputeHash data String md5Hash System.Text.Encoding.ASCII.GetString data.. yourString data x.ComputeHash data String md5Hash System.Text.Encoding.ASCII.GetString data Regarding the down..

Hash and salt passwords in C#

http://stackoverflow.com/questions/2138429/hash-and-salt-passwords-in-c-sharp

and salt passwords in C# I was just going through one of DavidHayden's.. I was just going through one of DavidHayden's articles on Hashing User Passwords . Really I can't get what he is trying to.. buff private static string CreatePasswordHash string pwd string salt string saltAndPwd String.Concat pwd salt..

What guarantees are there on the run-time complexity (Big-O) of LINQ methods?

http://stackoverflow.com/questions/2799427/what-guarantees-are-there-on-the-run-time-complexity-big-o-of-linq-methods

like operators Union Distinct Except etc. work using GetHashCode by default afaik so it seems reasonable to assume they're.. Which is it Contains would be O n on a List but O 1 on a HashSet does LINQ check the underlying container to see if it can.. be O 1 if the underlying collection is also O 1 such as a HashSet T but this is depends on the actual data structure and is..

Is this the way to salt and store a Password in Db?

http://stackoverflow.com/questions/5431354/is-this-the-way-to-salt-and-store-a-password-in-db

saltedPwd String.Concat password createDate.Ticks.ToString Hash it HMACSHA1 hash new HMACSHA1 Encoding.Unicode.GetBytes Helper.EncryptKey.. string encodedPwd Convert.ToBase64String hash.ComputeHash Encoding.Unicode.GetBytes saltedPwd Create User in the database..

Which cryptographic hash function should I choose?

http://stackoverflow.com/questions/800685/which-cryptographic-hash-function-should-i-choose

1000 1024 var algorithms new Dictionary string HashAlgorithm algorithms md5 md5 algorithms sha1 sha1 algorithms.. foreach var pair in algorithms Console.WriteLine Hash Length for 0 is 1 pair.Key pair.Value.ComputeHash source .Length.. Hash Length for 0 is 1 pair.Key pair.Value.ComputeHash source .Length foreach var pair in algorithms TimeAction pair.Key..

How to AES-128 encrypt a string using a password in Delphi and decrypt in C#?

http://stackoverflow.com/questions/9188045/how-to-aes-128-encrypt-a-string-using-a-password-in-delphi-and-decrypt-in-c

'CryptSetKeyParam' function CryptEncrypt Key HCRYPTKEY Hash HCRYPTHASH Final LongBool Flags LongWord pbData PBYTE var Len.. name 'CryptEncrypt' function CryptDecrypt Key HCRYPTKEY Hash HCRYPTHASH Final LongBool Flags LongWord pbData PBYTE var Len.. _lib_ADVAPI32 name 'CryptDecrypt' function CryptCreateHash Prov HCRYPTPROV Algid ALG_ID Key HCRYPTKEY Flags LongWord var..