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Issue and manage certificates using AWS Private Certificate Authority (PCA) for cloud-native private certificate management.

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Prerequisites

Before setting up AWS PCA integration, ensure you have:
  • An AWS account with AWS Private CA service access
  • An AWS Private CA in ACTIVE status
  • An AWS App Connection configured in Infisical with the required IAM permissions (see below)

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IAM Permissions

Your AWS connection’s IAM role or user needs the following permissions on your Private CA resource(s):
  • acm-pca:DescribeCertificateAuthority
  • acm-pca:GetCertificateAuthorityCertificate
  • acm-pca:IssueCertificate
  • acm-pca:GetCertificate
  • acm-pca:RevokeCertificate
To scope permissions to a single CA, set the Resource to that CA’s ARN: 
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "acm-pca:DescribeCertificateAuthority",
        "acm-pca:GetCertificateAuthorityCertificate",
        "acm-pca:IssueCertificate",
        "acm-pca:GetCertificate",
        "acm-pca:RevokeCertificate"
      ],
      "Resource": "arn:aws:acm-pca:us-east-1:123456789012:certificate-authority/your-ca-id"
    }
  ]
}
To allow access to multiple CAs, list each ARN in the Resource array: 
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "acm-pca:DescribeCertificateAuthority",
        "acm-pca:GetCertificateAuthorityCertificate",
        "acm-pca:IssueCertificate",
        "acm-pca:GetCertificate",
        "acm-pca:RevokeCertificate"
      ],
      "Resource": [
        "arn:aws:acm-pca:us-east-1:123456789012:certificate-authority/ca-id-1",
        "arn:aws:acm-pca:us-west-2:123456789012:certificate-authority/ca-id-2"
      ]
    }
  ]
}
Using a specific CA ARN in Resource is recommended over "*" to follow the principle of least privilege.
See the AWS Connection page for full setup instructions.

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Complete Workflow: From Setup to Certificate Issuance

1

Copy Your AWS PCA ARN

In the AWS Console, navigate to AWS Private CA and select your certificate authority. Copy the ARN from the CA details page.Copy PCA ARN
2

Navigate to External Certificate Authorities

In Certificate Manager, go to Settings → Certificate Authorities and scroll to the External Certificate Authorities section.
3

Create New AWS PCA Certificate Authority

Click Create CA and configure:
  • CA Type: Choose AWS Private CA (PCA)
  • Name: A slug name for this CA — lowercase letters, numbers, and hyphens only (e.g., “production-aws-pca”)
  • AWS Connection: Select your AWS connection from the dropdown
  • Certificate Authority ARN: Paste the ARN copied from the previous step
  • Region: Select the AWS region where your PCA is hosted
4

Create a Certificate Profile

Go to Certificate Manager → Certificate Profiles and create a profile with your AWS PCA CA as the issuing CA.
5

Configure an Application and Issue a Certificate

Create an Application, attach the profile, and configure an enrollment method. Then submit a certificate request from within the Application. The request will be sent to AWS PCA and the issued certificate will be available once the order completes.

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Troubleshooting

CA Not in ACTIVE Status
  • AWS PCA must be in the ACTIVE state before Infisical can issue certificates. Verify the status in the AWS Console under AWS Private CA.
IAM Permission Errors
  • Ensure your AWS connection’s IAM role or user has the required acm-pca:* permissions scoped to the correct CA ARN. See the IAM Permissions section above.
Invalid CA ARN
  • Double-check the ARN format: arn:aws:acm-pca:<region>:<account-id>:certificate-authority/<ca-id>.