Service Account Credentials audit logging

Cloud Audit Logs for Service Account Credentials let you track administrative and data-access operations on your resources to help you monitor access and configuration changes. You can query these logs in the Logs Explorer and check which Service Account Credentials API methods generate Cloud Audit Logs.

For more information about Cloud Audit Logs, see the following documents:

• Types of audit logs
• Audit log entry structure
• Storing and routing audit logs
• Cloud Logging pricing summary
• Enable Data Access audit logs

Notes

You can't enable Data Access audit logs for this service independently. To enable Data Access audit logs for this service, enable Data Access audit logs for the IAM API (iam.googleapis.com) or for all services.

Service name

To view the Service Account Credentials audit logs, do the following:

1. In the Cloud de Confiance console, go to the Logs Explorer page:

   Go to Logs Explorer

2. Copy and paste the following query into the Query field of the Logs Explorer, and then click Run query.

       protoPayload.serviceName="iamcredentials.googleapis.com"
     

Methods by permission type

Each IAM permission has a type property, whose value is an enum that can be one of four values: ADMIN_READ, ADMIN_WRITE, DATA_READ, or DATA_WRITE. When you call a method, Service Account Credentials generates an audit log whose category is dependent on the type property of the permission required to perform the method. Methods that require an IAM permission with the type property value of DATA_READ, DATA_WRITE, or ADMIN_READ generate Data Access audit logs. Methods that require an IAM permission with the type property value of ADMIN_WRITE generate Admin Activity audit logs.

API methods in the following list that are marked with (LRO) are long-running operations (LROs). These methods usually generate two audit log entries: one when the operation starts and another when it ends. For more information see Audit logs for long-running operations.

Permission type	Methods
DATA_READ	GenerateAccessToken GenerateIdToken SignBlob SignJwt

API interface audit logs

For information about how and which permissions are evaluated for each method, see the Identity and Access Management documentation for Service Account Credentials.

google.iam.credentials.v1.IAMCredentials

The following audit logs are associated with methods belonging to google.iam.credentials.v1.IAMCredentials.

GenerateAccessToken

• Method: GenerateAccessToken
  
• Audit log type: Data access
  
• Permissions:
  • iam.serviceAccounts.getAccessToken - DATA_READ
• Method is a long-running or streaming operation: No.
  
• Filter for this method: protoPayload.methodName="GenerateAccessToken"
  

GenerateIdToken

• Method: GenerateIdToken
  
• Audit log type: Data access
  
• Permissions:
  • iam.serviceAccounts.getAccessToken - DATA_READ
  • iam.serviceAccounts.getOpenIdToken - ADMIN_READ
• Method is a long-running or streaming operation: No.
  
• Filter for this method: protoPayload.methodName="GenerateIdToken"
  

SignBlob

• Method: SignBlob
  
• Audit log type: Data access
  
• Permissions:
  • iam.serviceAccounts.getAccessToken - DATA_READ
  • iam.serviceAccounts.signBlob - ADMIN_READ
• Method is a long-running or streaming operation: No.
  
• Filter for this method: protoPayload.methodName="SignBlob"
  

SignJwt

• Method: SignJwt
  
• Audit log type: Data access
  
• Permissions:
  • iam.serviceAccounts.getAccessToken - DATA_READ
  • iam.serviceAccounts.signJwt - ADMIN_READ
• Method is a long-running or streaming operation: No.
  
• Filter for this method: protoPayload.methodName="SignJwt"