Index Hierarchy NSString(Crypto) Category Reference Declared in NSString+Crypto.hNSString+Crypto.m Overview Adds HMAC SHA256 generations to NSString Tasks – hmacSHA256withKey: Generates a HMAC SHA256 signature for a string Instance Methods hmacSHA256withKey: Generates a HMAC SHA256 signature for a string - (NSString *)hmacSHA256withKey:(NSString *)key Parameters key Encoding key Return Value The signature in hex Declared In NSString+Crypto.h Index Hierarchy