转http://stackoverflow.com/questions/699041/hmac-sha256-in-php-and-c-differ
Hello
this is my PHP code:
hash_hmac( "sha256", utf8_encode( $filename ), utf8_encode( $password ) );
and this is my C# code:
var hmacsha256 = new HMACSHA256( Encoding.UTF8.GetBytes( password ) );
hmacsha256.ComputeHash( Encoding.UTF8.GetBytes( filename ) );
unfortunately both results differ. Can anyone give me a hint?
c# php hashcode link|edit|flag asked Mar 30 '09 at 21:11
tanascius
11k11737
90% accept rate
1 Answer
active
oldest
votes
up vote
4
down vote
accepted
My C# is not the best but i got it to work, what you need to do is to convert your byte array results to hex.
PHP
$hash = hash_hmac( "sha256", utf8_encode("Filename"), utf8_encode("Password"));
echo $hash;
// 5fe2ae06ff9828b33fe304545289a3f590bfd948ca9ab731c980379992ef41f1
C#
string password = "Password";
string filename = "Filename";
var hmacsha256 = new HMACSHA256(Encoding.UTF8.GetBytes(password));
hmacsha256.ComputeHash(Encoding.UTF8.GetBytes(filename));
foreach(byte test in hmacsha256.Hash)
{
Console.Write(test.ToString("X2"));
}
// 5FE2AE06FF9828B33FE304545289A3F590BFD948CA9AB731C980379992EF41F1