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02/03/2022 17:59 PM




Note: Because of industry changes in certificate expirations, the leaf certificate will expire and have to be updated once a year. With this update, there is no change to the root or intermediate certificates. This change is transparent if your site or application is set up to trust Entrust’s root and intermediate certificate, which is recommended. If it is set up to require trusting of a new leaf certificate, you must install or trust the new leaf certificate prior to the update dates listed below. It is not recommended to require trusting, due to the possibility of expiring and changing leaf certificates.

Certificate Update Scheduled: 02/23/2022 - 02/24/2022 for both Sandbox and Product
  • In the future we expect to update the leaf certificate a week before it expires.
  • Updated leaf certificate is attached - 01/27/2022

API endpoints impacted:

  • api.authorize.net
  • api2.authorize.net
  • apitest.authorize.net
  • secure.authorize.net
  • secure2.authorize.net
  • test.authorize.net


To obtain Authorize.Net SSL certificate if your integration solution or hosted does not already have the certificate trusted or install, the following instructions can be used to obtain the root or intermediate Entrust SSL certificates.

  1. Navigate to the api endpoint your solution/host is communicating with.
    1. This will depend on the API and environment being integrated or connected to. Please referred to developer/solution provider or Developer Center and Support Article: Authorize.Net Domains and IP Addresses
  2. Download the root and intermediate certificates.
    1. Entrust.net
      1. Download the Root Certificate (Entrust.net)
      2. Click on File > Properties > Certificates > Certification Path tab
      3. Select highest level of the certification path tree: 'Entrust.net'
      4. Click View Certificate > Details tab > Copy to File... > Next > Next
      5. Enter a filename (suggested filename: entrust_net.crt)
      6. Click Next > Finish.
    2. Entrust Certification Authority - L1K
      1. Download the Intermediate Certificate (Entrust Certification Authority - L1K)
      2. Click on File > Properties > Certificates > Certification Path tab
      3. Select second level of certification path tree: 'Entrust Certification Authority - L1K'
      4. Click View Certificate > Details tab > Copy to File... > Next > Next
      5. Enter a filename (suggested filename: entrust_L1K.crt)
      6. Click Next > Finish.

Additionally options for obtaining the certificates are:

  1. Obtain from Entrust directly: https://www.entrustdatacard.com/pages/root-certificates-download
  2. Use SSL Labs (https://www.ssllabs.com/ssltest/)
    1. Go to https://www.ssllabs.com/ssltest/
    2. Enter the API endpoint/url
    3. Click Submit
    4. Review the Certificate section of the results.
    5. Use the download option the leaf cert and intermediate/root CA as needed.


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