hmac

问题 using .NET and C# i need to provide an integrity string using HMAC SHA512 to a PHP server . Using in C# : Encoding encoding = Encoding.UTF8; byte[] keyByte = encoding.GetBytes(key); HMACSHA512 hmacsha512 = new HMACSHA512(keyByte); byte[] messageBytes = encoding.GetBytes(message); byte[] hashmessage = hmacsha512.ComputeHash(messageBytes); return(ByteToString(hashmessage).toUpper()); But it doesn't match with PHP hash_hmac() PHP code : $hmac = strtoupper(hash_hmac($pbx_hash, $msg, $binKey)); I

问题 I am trying to use the OAuth of a website, which requires the signature method to be \'HMAC-SHA1\' only. I am wondering how to implement this in Python? 回答1: Pseudocodish: def sign_request(): from hashlib import sha1 import hmac # key = b"CONSUMER_SECRET&" #If you dont have a token yet key = b"CONSUMER_SECRET&TOKEN_SECRET" # The Base String as specified here: raw = b"BASE_STRING" # as specified by OAuth hashed = hmac.new(key, raw, sha1) # The signature return hashed.digest().encode("base64")

问题 I need to generate HMAC-SHA1 in Objective C. But i didnt find anything that works. I tried with CommonCrypto, using CCHMAC, but didnt works. I need to generate a hmac and after generate HOTP number. Somebody have any example code in Objective C or C? 回答1: Here's how you generate an HMAC using SHA-256: NSString *key; NSString *data; const char *cKey = [key cStringUsingEncoding:NSASCIIStringEncoding]; const char *cData = [data cStringUsingEncoding:NSASCIIStringEncoding]; unsigned char cHMAC[CC