HMAC-SHA1

[HMAC-SHA1]main.m

//
//  main.m
//  sucksha1
//
//  Created by Dagu on 2018/8/20.
//  Copyright © 2018年 ORANCORP. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <CommonCrypto/CommonCrypto.h>

@interface Suck : NSObject

- (void)suck;

@end

@implementation Suck

- (void)suck {
//    NSString *text = @"a=1252821871&k=AKIDgaoOYh2kOmJfWVdH4lpfxScG2zPLPGoK&t=1436077115&r=11162";
//    NSString *fuck = @"a=1252821871&k=AKIDgaoOYh2kOmJfWVdH4lpfxScG2zPLPGoK&t=1528775129&r=1066735099";
    
    NSString *text = @"a=102&k=HYLrmGvcedOoDhICM3uQtgmccInGWxwIui6T&t=1534736308&r=1496929847";
    NSString *ssss = @"a=102&k=HYLrmGvcedOoDhICM3uQtgmccInGWxwIui6T&t=1534736308&r=1496929847";
    
    NSLog(@"text.length = %ld", text.length);
    
    const char *cKey  = [@"o6QkjSswrVRzRgxArOaHmNqVHezeEcEo" 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];
    
    NSLog(@"HMAC = %@", HMAC);
    
    NSData *textData = [text dataUsingEncoding:NSUTF8StringEncoding];
    
    NSMutableData *suckData = HMAC.mutableCopy;
    [suckData appendData:textData];
    
    NSString *b64 = [suckData base64EncodedStringWithOptions:0];
    
    NSLog(@"%@", b64);
    
//
//
//    NSMutableString * output = [NSMutableString stringWithCapacity:CC_SHA1_DIGEST_LENGTH * 2];
//
//    for (int i = 0; i < CC_SHA1_DIGEST_LENGTH; i++) {
//        [output appendFormat:@"%02x", cHMAC[i]];
//    }
//
//    NSLog(@"output: %@", output);
//
//    [output appendString:text];
//
//    NSData *asdasda = [output dataUsingEncoding:NSUTF8StringEncoding];
//
//    NSLog(@"asd = %@", [asdasda base64EncodedStringWithOptions:0]);
//
//
//    NSString *B64 = @"7YrH7PAlkT7ed4YLAwIKCTmdRw5hPTEwMiZrPUhZTHJtR3ZjZWRPb0RoSUNNM3VRdGdtY2NJbkdXeHdJdWk2VCZ0PTE1MzQ3MzYzMDgmcj0xNDk2OTI5ODQ3";
//
//    NSData *d1 = [[NSData alloc] initWithBase64EncodedString:B64 options:NSDataBase64DecodingIgnoreUnknownCharacters];
//
//    NSLog(@"d1.length = %ld, %@", d1.length , d1);
//
//    NSData *tempData = [d1 subdataWithRange:NSMakeRange(20, 70)];
//
//    NSString *test = [[NSString alloc] initWithData:tempData encoding:NSUTF8StringEncoding];
//    NSLog(@"test = %@", test);
//
//    NSData *tempdata2 = [d1 subdataWithRange:NSMakeRange(0, 20)];
//
//    NSLog(@"temp data2 = %@", tempdata2);
//
}


@end


int main(int argc, const char * argv[]) {
    @autoreleasepool {
        // insert code here...
        NSLog(@"Hello, World!");
        
        Suck *s = [[Suck alloc] init];
        [s suck];
    }
    return 0;
}