Shared access signature
A shared access signature is a signed, time-limited credential granting delegated permissions to specified cloud-storage resources.
Microsoft Azure in Action
A shared access signature (SAS) is a signed Azure credential that grants delegated, time-limited permissions to specified resources.
- How it is used
- Authenticates AzCopy while moving static-website files into Azure Storage with temporary, limited access.
- How deep it goes
- Defines the token, explains URI-based verification, and walks through portal settings and AzCopy usage; does not examine signing internals.
- Examples
- Shows a SAS URI and AzCopy commands for creating a $web container and recursively uploading static-website files.
- What you can do after
- Apply it via AzCopy to authenticate container creation and static-website uploads using a portal-generated SAS token.
Read how Microsoft Azure in Action explains shared access signature →
Azure Security
A shared access signature is a signed Azure Storage authorization token that grants specified permissions to specified resources for a defined period.
- How it is used
- Authorizes selected Azure Storage data plane operations for delegated, resource-specific, time-bounded access.
- How deep it goes
- Explains supported resources, constrained operations, authorization alternatives, and an Azure CLI command, but not token construction internals.
- Examples
- Demonstrates Azure CLI container creation using an account name, container name, and SAS token.
- What you can do after
- Apply it via Azure CLI to authorize a permitted storage container operation with a SAS token.
Related concepts
- account access keyalternative to · An account access key is a long-lived secret credential that authorizes operations against an associated storage account and its resources.
- uriuses · A URI (Uniform Resource Identifier) is a standardized character sequence that identifies an abstract or physical resource.
- security tokenkind of · A security token is a credential or assertion presented to a service to convey authenticated identity, authorization, or session information.
- AzCopyused by · AzCopy is a Microsoft command-line utility for copying files and data between local systems and Azure Storage resources.
- password authenticationalternative to · Password authentication is an authentication method that verifies a claimed identity or access by checking a supplied secret password or passphrase.
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