Authentication

Token-based Authentication

The validity period of a token is 24 hours. When using a token for authentication, cache it to prevent frequently calling the IAM API used to obtain a user token.

A token specifies temporary permissions in a computer system. During API authentication using a token, the token is added to requests to get permissions for calling the API. You can obtain a token by calling the API for obtaining a user token.

This service is a project-level service. When you call the API for obtaining a user token, set auth.scope in the request body to project.

If auth.scope is set to project, the token can only be used to access services (such as FlexusL) in specific projects. You can specify either id or name. For details about how to obtain the ID or name, see Obtaining Account, IAM User, Group, Project, Region, and Agency Information.

{
    "auth": {
        "identity": {
            "methods": [
                "password"
            ],
            "password": {
                "user": {
                    "name": "username",   //IAM user name
                    "password": "$ADMIN_PASS",  //IAM user password. You are advised to store it in ciphertext in the configuration file or an environment variable and decrypt it when needed to ensure security.
                    "domain": {
                        "name": "domainname"  //Name of the account to which the IAM user belongs
                    }
                }
            }
        },
        "scope": {
            "project": {
"name": "ap-southeast-1" //Project name. This is only an example. Change it based on the region where the resource is located.
            }
        }
    }
}

After a token is obtained, the X-Auth-Token header field must be added to requests to specify the token when calling other APIs. For example, if the token is ABCDEFJ...., the request header X-Auth-Token: ABCDEFJ.... can be added to the request as follows:

The token changes by region. Obtain the token based on the region where the resource is located. After switching the region, you need to obtain the token again.

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POST https://iam.ap-southeast-1.myhuaweicloud.com/v3/auth/projects
Content-Type: application/json
X-Auth-Token: ABCDEFJ....

AK/SK-based Authentication

AK/SK-based authentication supports API requests with a body not larger than 12 MB. For API requests with a larger body, token-based authentication is recommended

In AK/SK-based authentication, AK/SK is used to sign requests and the signature is then added to the requests for authentication.

• AK: access key ID, which is a unique identifier used in conjunction with a secret access key to sign requests cryptographically.
• SK: secret access key, which is used in conjunction with an AK to sign requests cryptographically. It identifies a request sender and prevents the request from being modified.

In AK/SK authentication, you can use an AK/SK to sign requests based on the signature algorithm or using the signing SDK. For details about how to sign requests and use the signing SDK, see AK/SK Signing and Authentication Guide.

The signing SDK is only used for signing requests and is different from the SDKs provided by services.