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iphonensstringnsdata

NSData to display as a string

I am building an iPhone app and stuck with the following:

unsigned char hashedChars[32];
CC_SHA256([inputString UTF8String], [inputString lengthOfBytesUsingEncoding:NSASCIIStringEncoding], hashedChars);
NSData *hashedData = [NSData dataWithBytes:hashedChars length:32];
NSLog(@"hashedData = %@", hashedData);

The log is showing like:

hashedData = <abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh abcdefgh>
  • note hashedData is NSData, not NSString

But what I need is to convert hashedData into NSString that looks like:

NSString *someString = @"abcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefghabcdefgh";

So basically the result needs to be like hashedData except I don't want the angle brackets and spaces in between.

Solution

  • I have found the solution and I think I was being stupid.

    Basically all I had to do is:

    NSString *someString = [NSString stringWithFormat:@"%@", hashedData]; //forcing the NSData to become NSString

    Once again thank you to all who tried to help, Much appreciated.