{
  "properties": {
    "displayName": "Certificates using RSA cryptography should have the specified minimum key size",
    "policyType": "BuiltIn",
    "mode": "Microsoft.KeyVault.Data",
    "description": "Manage your organizational compliance requirements by specifying a minimum key size for RSA certificates stored in your key vault.",
    "metadata": {
      "version": "2.0.0-preview",
      "category": "Key Vault",
      "preview": true
    },
    "parameters": {
      "minimumRSAKeySize": {
        "type": "Integer",
        "metadata": {
          "displayName": "Minimum RSA key size",
          "description": "The minimum key size for RSA certificates."
        },
        "allowedValues": [
          2048,
          3072,
          4096
        ]
      },
      "effect": {
        "type": "string",
        "defaultValue": "audit",
        "allowedValues": [
          "audit",
          "deny",
          "disabled"
        ],
        "metadata": {
          "displayName": "Effect",
          "description": "'Audit' allows a non-compliant resource to be created, but flags it as non-compliant. 'Deny' blocks the resource creation. 'Disable' turns off the policy."
        }
      }
    },
    "policyRule": {
      "if": {
        "allOf": [
          {
            "field": "type",
            "equals": "Microsoft.KeyVault.Data/vaults/certificates"
          },
          {
            "field": "Microsoft.KeyVault.Data/vaults/certificates/keyProperties.keyType",
            "in": [
              "RSA",
              "RSA-HSM"
            ]
          },
          {
            "field": "Microsoft.KeyVault.Data/vaults/certificates/keyProperties.keySize",
            "less": "[parameters('minimumRSAKeySize')]"
          }
        ]
      },
      "then": {
        "effect": "[parameters('effect')]"
      }
    }
  },
  "id": "/providers/Microsoft.Authorization/policyDefinitions/cee51871-e572-4576-855c-047c820360f0",
  "name": "cee51871-e572-4576-855c-047c820360f0"
}