Add ECDSA support for CloudFront.Signers

[Klaus-fz]

Describe the feature

The cloudfront has official supported the ECDSA key for signed Urls last year, but the AWSSDK.Extensions.CloudFront.Signers package of v4 or CloudFront package of v3 still lack of implement for this.

Use Case

Use API gateway and lambda to generate signed urls for access of s3 resources, but can only use RSA with the sdk,.

Proposed Solution

Add support of ECDSA key.

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

AWS .NET SDK and/or Package version used

AWSSDK.Extensions.CloudFront.Signers 4.0.0.23

Targeted .NET Platform

.NET8, .NET10

Operating System and version

Windows10, Windows11

[sankettangade]

Hi @Klaus-fz,

Thank you for requesting this feature. We currently have an internal discussion underway with other SDK teams regarding adding this functionality, and it has not been approved yet.

However, you are welcome to create a PR to add the implementation in the AWSSDK.Extensions.CloudFront.Signer package. Please note that the team will need to review it based on the design that is approved internally. We appreciate your interest in contributing to the project and will evaluate your PR once submitted.