Before using OBS, ensure that you have a cloud service account.

1. Open a browser.
2. Visit www.huaweicloud.com/en-us/.
3. In the upper right corner of the page, click Register.
4. Enter the registration information and click Register.

Ensure that your account balance is sufficient before using OBS.

1. Log in to OBS Console.
2. Click Billing in the upper right corner of the page to go to the billing center.
3. Click Top Up. The dialog box for top-up is displayed.
4. Top up the account as prompted.
5. After the top-up is complete, close the dialog box and go back to the management console homepage.
6. Click Object Storage Service to subscribe to OBS and enter OBS Console.

OBS employs AKs and SKs in user accounts for signature verification to ensure that only authorized accounts can access specified OBS resources. Detailed explanations about AK and SK are as follows:

• An access key ID (AK) defines a user that accesses the OBS system. An AK belongs to only one user, but one user can have multiple AKs. The OBS system recognizes the users who access the system by their access key IDs.
• An SK is the secret access key on OBS, which is required as the key to access OBS. You can generate authentication information based on SKs and request header fields. An SK matches an AK, and they group into a pair.

Access keys are classified into permanent access keys (AK/SK) and temporary access keys (AK/SK and security token). A user can create a maximum of two valid permanent access keys. Temporary access keys can be used to access OBS only within the specified validity period. After the temporary access keys expire, they need to be obtained again. For security purposes, you are advised to use temporary access keys to access OBS, or periodically update your access keys if you use permanent access keys. The following describes how to obtain access keys of these two types.

• Permanent access keys:
  1. Log in to OBS Console.
  2. In the upper right corner of the page, hover the cursor over the username and click My Credentials.
  3. On the My Credentials page, select Access Keys in the navigation pane on the left.
  4. On the Access Keys page, click Create Access Key.
  5. In the Create Access Key dialog box that is displayed, enter the password and verification code.
     

     • If you have not bound an email address or mobile number, you need to enter only the login password.
     • If you have bound an email address and a mobile number, you can select the verification either by email address or mobile number.
  6. Click OK.
  7. In the Download Access Key dialog box that is displayed, click OK to save the access keys to your browser's default download path.
  8. Open the downloaded credentials.csv file to obtain the access keys (AK and SK).
     

     • Each user can create up to two valid AK/SK pairs.
     • To prevent the AK/SK from being leaked, keep them secure. If you click Cancel in the dialog box, the access keys will not be downloaded, and you cannot download it later. You can re-create access keys if you need to use them.
• Temporary access keys:

  The temporary AK/SK and security token are temporary access tokens issued by the system to users. The validity period ranges from 15 minutes to 24 hours which can be set using APIs. After the validity period expires, users need to obtain the access keys again. The temporary AK/SK and security token shall observe the principle of least privilege. When the temporary AK/SK are used for authentication, the temporary AK/SK and security token must be used at the same time.

  For details about how to obtain temporary access keys, see Obtaining a Temporary AK/SK.

  For details about how to use temporary access keys, see Creating an Instance of ObsClient.