Hello Folks,
Please take the time to read the notification from AWS below and check if your service is impacted by this change.
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Hello,
Amazon Web Services currently supports Amazon SES API requests that are signed using Signature Version 3 and Signature Version 4 processes. Signature Version 4 further enhances the security around authentication and authorization of Amazon SES customers by using a signing key instead of your secret access key. To improve the security for our customers, beginning October 1, 2020, Amazon Signature Version 3 will be turned off (deprecated) in Amazon SES in favor of Signature Version 4.
Amazon SES customers who are still using Signature Version 3 must migrate to Signature Version 4 by September 30, 2020. After that, Amazon SES will only accept requests that are signed using Signature Version 4. For more information, see Signature Version 4 signing process [1].
What Happens if I Don't Make Updates?
Requests signed with Signature Version 3 that are made after September 30, 2020 will fail to authenticate with Amazon SES. Requesters will see errors stating that the request must be signed with Signature Version 4.
References:
[1] https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html
Sincerely,
Amazon Web Services
Amazon Web Services, Inc. is a subsidiary of Amazon.com, Inc. Amazon.com is a registered trademark of Amazon.com, Inc. This message was produced and distributed by Amazon Web Services Inc., 410 Terry Ave. North, Seattle, WA 98109-5210
Reference: https://phd.aws.amazon.com/phd/home#/event-log?Event%20ARN=arn:aws:health:global::event/SES/AWS_SES_OPERATIONAL_NOTIFICATION/AWS_SES_OPERATIONAL_NOTIFICATION_c248b1ff-e8bc-4365-a4d9-7bd821d0b37b&eventID=arn:aws:health:global::event/SES/AWS_SES_OPERATIONAL_NOTIFICATION/AWS_SES_OPERATIONAL_NOTIFICATION_c248b1ff-e8bc-4365-a4d9-7bd821d0b37b&eventTab=details&layout=vertical
Blog Post: https://29022131.atlassian.net/wiki/x/YIS-Ug