Given the message and the salt how can I encode it returning the hashed string?
I need reproduce the php function:
hash_hmac('sha256','message','salt');
Thanks
Found the answer:
#import <CommonCrypto/CommonHMAC.h>
-(NSString *) hashString :(NSString *) data withSalt: (NSString *) salt {
const char *cKey = [salt cStringUsingEncoding:NSUTF8StringEncoding];
const char *cData = [data cStringUsingEncoding:NSUTF8StringEncoding];
unsigned char cHMAC[CC_SHA256_DIGEST_LENGTH];
CCHmac(kCCHmacAlgSHA256, cKey, strlen(cKey), cData, strlen(cData), cHMAC);
NSString *hash;
NSMutableString* output = [NSMutableString stringWithCapacity:CC_SHA256_DIGEST_LENGTH * 2];
for(int i = 0; i < CC_SHA256_DIGEST_LENGTH; i++)
[output appendFormat:@"%02x", cHMAC[i]];
hash = output;
return hash;
}
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