Hot fix: uint8_t[] array transform to NSString got (null) bug
##Finally, I got the answer!
I just need treat the uint8_t[] array as a char[] array. Then, transform the char[] array to NSString by below line:

    NSString* ivString = [NSString stringWithCString:initialisationVector encoding:NSASCIIStringEncoding];

Result is: ivString NSString * 0x1d8489c0 @"¹U ¡hÌTÖÆáÎ²Í"