AWSSDK Create Distribution for Signed Url

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C#

Amazon-S3

SDK

AWS

Hi,

I'm using Amazon S3 for cloud storage.
I want to create a signed url from Amazon .Net SDK (AWSSDK)
But I couldn't do it. I'm having problem on creating distribution.

Here is my code;

Origin origin = new Origin();
origin.DomainName = bucketName + ".s3.amazonaws.com";
origin.OriginPath = folder;
origin.Id = bucketName;

DistributionConfig distributionConfig = new DistributionConfig();
var origins = new Origins();
origins.Items.Add(origin);
distributionConfig.Origins = origins;
distributionConfig.Origins.Quantity = 1;
DefaultCacheBehavior cacheBehavior = new DefaultCacheBehavior();
TrustedSigners trustedSigners = new TrustedSigners();
trustedSigners.Quantity = 0;
trustedSigners.Enabled = false;
cacheBehavior.TrustedSigners = trustedSigners;
cacheBehavior.MinTTL = 0;
ViewerProtocolPolicy viewverPolicy = new ViewerProtocolPolicy("allow-all");
cacheBehavior.ViewerProtocolPolicy = viewverPolicy;
ForwardedValues forwardedValues = new ForwardedValues();
forwardedValues.QueryString = true;
CookiePreference cookiePreference = new CookiePreference();
forwardedValues.Cookies = cookiePreference;
ItemSelection itemSelection = new ItemSelection("all");
forwardedValues.Cookies.Forward = itemSelection;
cacheBehavior.ForwardedValues = forwardedValues;
cacheBehavior.TargetOriginId = "";
distributionConfig.DefaultCacheBehavior = cacheBehavior;
distributionConfig.Enabled = true;
distributionConfig.CallerReference = bucketName;
distributionConfig.Comment = "";

CreateDistributionRequest createDistributionRequest = new CreateDistributionRequest(distributionConfig);
            
var resp = cloudFrontClient.CreateDistribution(createDistributionRequest);

It returns this error:

An unhandled exception of type 'Amazon.CloudFront.Model.NoSuchOriginException' occurred in AWSSDK.dll

Additional information: One or more of your origins do not exist.

But actually bucketName + ".s3.amazonaws.com" exists..

What do you think I'm doing wrong or can you guide for correct sample.
It's hard to find a sample for this process on the net.