小编Tus*_*har的帖子

我需要使用HMAC SHA256生成哈希.我在Java中使用以下代码.我需要Objective-C中的等效代码.

javax.crypto.Mac mac = javax.crypto.Mac.getInstance(type);
javax.crypto.spec.SecretKeySpec secret = new javax.crypto.spec.SecretKeySpec(key.getBytes(), type);
mac.init(secret);
byte[] digest = mac.doFinal(value.getBytes());      
StringBuilder sb = new StringBuilder(digest.length * 2);
String s="";
for (byte b: digest) {
    s = Integer.toHexString(b);
    if (s.length() == 1) {
        sb.append('0');
    }
    sb.append(s);
}
return sb.toString();

键= YARJSuwP5Oo6/r47LczzWjUx/T8ioAJpUK2YfdI/ZshlTUP8q4ujEVjC0seEUAAtS6YEE1Veghz+IDbNQb+2KQ==

价值=

id=456|time=19:10|nonce=8

输出=

4effffffd8ffffffce7cffffffc4ffffffc71b2f72ffffffdc21ffffffa1ffffffe0ffffffe62d32550b0771296bffffff9c1159ffffffdeffffff8675ffffff9928654c

我有这个Objective-C功能:

  //Hash method Definition
    - (NSString *)getHashEncription:(NSString *)key andData:(NSString *)data{

        NSLog(@"Secret Key %@ And Data %@", key, data);

        const char *cKey  = [key cStringUsingEncoding:NSASCIIStringEncoding];
        const char *cData = [data …