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AWS Signature Version 4

AWS signing protocol for adding authentication information to AWS API requests using symmetric signatures scoped to a single region.

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Field note

What it does

AWS Signature Version 4 (SigV4) is the AWS signing protocol for adding authentication information to AWS API requests. It requires deriving a key scoped to a single AWS service, in a single AWS region, on a particular day.

Capabilities

Available capabilities

Authorization header signing Single-region request signing Canonical request creation

AWS Signature Version 4

What it does

Available capabilities

Tags

Ways to use it

Product features

[ AWS CLI & SDKs ]

[ AWS Management Console ]

Considerations before enabling and disabling Regions

[ Default Regions ]

Enable or disable a Region for standalone accounts

Enable or disable a Region in your organization

Enable or disable AWS Regions in your account

[ Opt-in Regions ]

Processing times and request limits

Regional availability reference