[AWS] Security Token Service (STS)

Security Token Service (STS) creates temporary security credentials – short time use (A few minutes to several hours).

Features

  • STS API calls return a credential, which has 3 components
    • Security Token
    • Access Key ID
    • Secrete Access Key
  • Types of Tokens
    • AssumeRole
    • AssumeRoleWithWebIdentity
    • AssumeRoleWithSAML
    • GetFederationToken
    • GetSessionToken

Benefits

  • There is no need to pass or save credentials in an application or an instance.
  • Use Cases
    • Identity Federation (SAML – Security Assertion Markup Language, Web Identity Federation)
    • Roles for Cross Account Access
    • Roles for EC2 instances

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