ACM / Client / import_certificate



Imports a certificate into Certificate Manager (ACM) to use with services that are integrated with ACM. Note that integrated services allow only certificate types and keys they support to be associated with their resources. Further, their support differs depending on whether the certificate is imported into IAM or into ACM. For more information, see the documentation for each service. For more information about importing certificates into ACM, see Importing Certificates in the Certificate Manager User Guide.


ACM does not provide managed renewal for certificates that you import.

Note the following guidelines when importing third party certificates:

  • You must enter the private key that matches the certificate you are importing.

  • The private key must be unencrypted. You cannot import a private key that is protected by a password or a passphrase.

  • The private key must be no larger than 5 KB (5,120 bytes).

  • If the certificate you are importing is not self-signed, you must enter its certificate chain.

  • If a certificate chain is included, the issuer must be the subject of one of the certificates in the chain.

  • The certificate, private key, and certificate chain must be PEM-encoded.

  • The current time must be between the Not Before and Not After certificate fields.

  • The Issuer field must not be empty.

  • The OCSP authority URL, if present, must not exceed 1000 characters.

  • To import a new certificate, omit the CertificateArn argument. Include this argument only when you want to replace a previously imported certificate.

  • When you import a certificate by using the CLI, you must specify the certificate, the certificate chain, and the private key by their file names preceded by fileb://. For example, you can specify a certificate saved in the C:\temp folder as fileb://C:\temp\certificate_to_import.pem. If you are making an HTTP or HTTPS Query request, include these arguments as BLOBs.

  • When you import a certificate by using an SDK, you must specify the certificate, the certificate chain, and the private key files in the manner required by the programming language you’re using.

  • The cryptographic algorithm of an imported certificate must match the algorithm of the signing CA. For example, if the signing CA key type is RSA, then the certificate key type must also be RSA.

This operation returns the Amazon Resource Name (ARN) of the imported certificate.

See also: AWS API Documentation

Request Syntax

response = client.import_certificate(
            'Key': 'string',
            'Value': 'string'
  • CertificateArn (string) – The Amazon Resource Name (ARN) of an imported certificate to replace. To import a new certificate, omit this field.

  • Certificate (bytes) –


    The certificate to import.

  • PrivateKey (bytes) –


    The private key that matches the public key in the certificate.

  • CertificateChain (bytes) – The PEM encoded certificate chain.

  • Tags (list) –

    One or more resource tags to associate with the imported certificate.

    Note: You cannot apply tags when reimporting a certificate.

    • (dict) –

      A key-value pair that identifies or specifies metadata about an ACM resource.

      • Key (string) – [REQUIRED]

        The key of the tag.

      • Value (string) –

        The value of the tag.

Return type:



Response Syntax

    'CertificateArn': 'string'

Response Structure