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c# Programming Glossary: md5Calculate MD5 checksum for a file http://stackoverflow.com/questions/10520048/calculate-md5-checksum-for-a-file MD5 checksum for a file I'm using iTextSharp to read the text from.. If the text and modification date cannot be obtained is a MD5 checksum the most reliable way to tell if the file has changed.. improve this question It's very simple using var md5 MD5.Create using var stream File.OpenRead filename return md5.ComputeHash..
How to compare 2 files fast using .NET? http://stackoverflow.com/questions/1358510/how-to-compare-2-files-fast-using-net classes. Here's a short example of generating an MD5 checksum with C#. However a checksum may be faster and make..
http://stackoverflow.com/questions/2031217/what-is-the-fastest-way-i-can-compare-two-equal-size-bitmaps-to-determine-whethe are the results CompareByInts Marc Gravell 1107ms CompareByMD5 Skilldrick 4222ms CompareByMask GrayWizardX 949ms In CompareByInts.. I'm using pointers to access the memory directly in the MD5 method I'm using Marshal.Copy to retrieve a byte array and pass.. to retrieve a byte array and pass that as an argument to MD5.ComputeHash. CompareByMask is only slightly faster but given..
Possible to calculate MD5 (or other) hash with buffered reads? http://stackoverflow.com/questions/2124468/possible-to-calculate-md5-or-other-hash-with-buffered-reads to calculate MD5 or other hash with buffered reads I need to calculate checksums.. ha System.Security.Cryptography.MD5.Create FileStream fs new FileStream file FileMode.Open FileAccess.Read.. override of a hash function that allowed me to calculate a MD5 or other hash at the same time as writing ie calculating the..
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 passwords Hash them using something like the MD5 provider and when you have to challenge hash the input from.. see if the two hashes match. System.Security.Cryptography.MD5CryptoServiceProvider x new System.Security.Cryptography.MD5CryptoServiceProvider.. x new System.Security.Cryptography.MD5CryptoServiceProvider byte data System.Text.Encoding.ASCII.GetBytes..
Is BCrypt a good hashing algorithm to use in C#? Where can I find it? http://stackoverflow.com/questions/481160/is-bcrypt-a-good-hashing-algorithm-to-use-in-c-where-can-i-find-it five orders of magnitude longer to hash a password than MD5 and still much longer than AES or SHA 512 . It forces the hacker..
Which cryptographic hash function should I choose? http://stackoverflow.com/questions/800685/which-cryptographic-hash-function-should-i-choose .NET framework ships with 6 different hashing algorithms MD5 16 bytes Time to hash 500MB 1462 ms SHA1 20 bytes 1644 ms SHA256.. bytes 7066 ms Each of these functions performs differently MD5 being the fastest and RIPEMD being the slowest. MD5 has the.. MD5 being the fastest and RIPEMD being the slowest. MD5 has the advantage that it fits in the built in Guid type. Which..
Calculate MD5 checksum for a file http://stackoverflow.com/questions/10520048/calculate-md5-checksum-for-a-file share improve this question It's very simple using var md5 MD5.Create using var stream File.OpenRead filename return md5.ComputeHash.. MD5.Create using var stream File.OpenRead filename return md5.ComputeHash stream I believe that actually the MD5 implementation..
Possible to calculate MD5 (or other) hash with buffered reads? http://stackoverflow.com/questions/2124468/possible-to-calculate-md5-or-other-hash-with-buffered-reads it makes sense due to the large files. c# .net 3.5 hash md5 buffer share improve this question You use the TransformBlock.. methods to process the data in chunks. Init MD5 md5 MD5.Create int offset 0 For each block offset md5.TransformBlock.. Init MD5 md5 MD5.Create int offset 0 For each block offset md5.TransformBlock block 0 block.Length block 0 For last block md5.TransformFinalBlock..
How do I create an MD5 hash digest from a text file? http://stackoverflow.com/questions/2150455/how-do-i-create-an-md5-hash-digest-from-a-text-file fn return BitConverter.ToString hash .Replace c# hash md5 share improve this question Here's the routine I'm currently.. if stream null stream.Seek 0 SeekOrigin.Begin MD5 md5 MD5CryptoServiceProvider.Create byte hash md5.ComputeHash stream.. MD5 md5 MD5CryptoServiceProvider.Create byte hash md5.ComputeHash stream foreach byte b in hash sb.Append b.ToString..
How to get the file size of a “System.Drawing.Image” http://stackoverflow.com/questions/221345/how-to-get-the-file-size-of-a-system-drawing-image i hashBuilder.Append hash i .ToString X2 string md5 hashBuilder.ToString image.Dispose c# image image processing..
Compute a hash from a stream of unknown length in C# http://stackoverflow.com/questions/3621283/compute-a-hash-from-a-stream-of-unknown-length-in-c-sharp is the best solution in C# for computing an on the fly md5 like hash of a stream of unknown length Specifically I want.. know the length in advance. EDIT Right now I am using md5 but this requires a second pass over the data after it's been..
http://stackoverflow.com/questions/4181198/how-to-hash-a-password 7 share improve this question You can either use var md5 new MD5CryptoServiceProvider var md5data md5.ComputeHash data.. can either use var md5 new MD5CryptoServiceProvider var md5data md5.ComputeHash data or var sha1 new SHA1CryptoServiceProvider.. use var md5 new MD5CryptoServiceProvider var md5data md5.ComputeHash data or var sha1 new SHA1CryptoServiceProvider var..
openssl using only .NET classes http://stackoverflow.com/questions/5452422/openssl-using-only-net-classes passphrase byte currentHash new byte 0 MD5 md5 MD5.Create bool enoughBytesForKey false See http www.openssl.org.. password.Length salt.Length currentHash md5.ComputeHash preHash concatenatedHashes.AddRange currentHash.. 0 key 0 32 concatenatedHashes.CopyTo 32 iv 0 16 md5.Clear md5 null static byte EncryptStringToBytesAes string..
How and why do I set up a C# build machine? http://stackoverflow.com/questions/616149/how-and-why-do-i-set-up-a-c-sharp-build-machine whatever you want with it that includes ID'ing it via the md5 hash uploading it copying it archiving it etc. It does this..
Which cryptographic hash function should I choose? http://stackoverflow.com/questions/800685/which-cryptographic-hash-function-should-i-choose bytes return bytes static void Main string args var md5 new MD5CryptoServiceProvider var sha1 new SHA1CryptoServiceProvider.. algorithms new Dictionary string HashAlgorithm algorithms md5 md5 algorithms sha1 sha1 algorithms sha256 sha256 algorithms.. new Dictionary string HashAlgorithm algorithms md5 md5 algorithms sha1 sha1 algorithms sha256 sha256 algorithms sha384..
C# version of OpenSSL EVP_BytesToKey method? http://stackoverflow.com/questions/8008253/c-sharp-version-of-openssl-evp-bytestokey-method a real .NET implementation. c# .net encryption openssl md5 share improve this question I found this pseudo code explanation..
http://stackoverflow.com/questions/827527/c-sharp-md5-hasher-example file I've copied. File.Copy pathSrc pathDest true String md5Result StringBuilder sb new StringBuilder MD5 md5Hasher MD5.Create.. String md5Result StringBuilder sb new StringBuilder MD5 md5Hasher MD5.Create using FileStream fs File.OpenRead pathDest.. FileStream fs File.OpenRead pathDest foreach Byte b in md5Hasher.ComputeHash fs sb.Append b.ToString x2 .ToLower md5Result..
Authentication Service using WCF http://stackoverflow.com/questions/9584198/authentication-service-using-wcf issue time user id The hash value should be hash sha1 md5 etc of everything after the first pipe. You can then base64..
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