iOS HMAC SHA1

本文主要是介绍iOS HMAC SHA1，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

需要导入cocoaSecurity框架

https://github.com/kelp404/CocoaSecurity

Base64:https://github.com/nicklockwood/Base64

#import "Base64.h"

#include <CommonCrypto/CommonDigest.h>

#include <CommonCrypto/CommonHMAC.h>

+ (NSString *)hmacSha1:(NSString*)key text:(NSString*)text

{

    const char *cKey  = [key cStringUsingEncoding:NSUTF8StringEncoding];

    

    const char *cData = [text cStringUsingEncoding:NSUTF8StringEncoding];

   

    uint8_t cHMAC[CC_SHA1_DIGEST_LENGTH];

    

    CCHmac(kCCHmacAlgSHA1, cKey, strlen(cKey), cData, strlen(cData), cHMAC);

    //NSData *HMAC = [[NSData alloc] initWithBytes:cHMAC length:CC_SHA1_DIGEST_LENGTH];

  

    NSString *hash;

    NSMutableString * output = [NSMutableString stringWithCapacity:CC_SHA1_DIGEST_LENGTH * 2];

    

    for(int i = 0; i < CC_SHA1_DIGEST_LENGTH; i++)

        

    [output appendFormat:@"%02x", cHMAC[i]];

    

    hash = output;

    

    return hash;

}

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