Tenant Policy Configuration
Armando Carratala
Julio D'Angelo
Case sensitive
All policy configuration field values are case sensitive.
Every Debbie policy configuration file has two to well-defined sections that must be configured in order to validate an End User Certificate for a given tenant.
General configuration fields
The following fields are general definitions for a tenant policy.
Field | Required | Description | Example |
---|---|---|---|
url | yes | URL where the policy validation service for a tenant is available. If several policies have the same URL in the policy configuration file, only the first one found will work. For example, the policy will be accessible on "/acme". | acme |
version | yes | Policy configuration version. | 1.0.0 |
description | yes | Policy configuration description. | Acme Pilot |
status | yes | Indicates if this policy is enabled. This field allows to have several definitions but only keep one of them active. Possible values are enabled or disabled. | enabled |
encoding | no | This field is used to select the character set used by the signed text, especially when it has been generated on a Web page that can be browser dependent. The possible values are all those Character Sets that can be defined in every platform. If none is indicated, "UTF-8" is taken as default. | ISO-8859-1 |
certPolicyLevel | yes | Sets the signature's certificate validation level. See Policy Level table below for more details. | 1 |
validationTimeLevel | no | Sets the signature's validation time level. See Validation Time Level table below for more details. By default is set to "1". | 1 |
The following table represents the possible values for the certPolicyLevel field.
Level | Value | Description |
---|---|---|
0 | NONE | There is no evaluation of the signing certificate. Any certificate is accepted. |
1 | TRUSTED | There is no evaluation of the signing certificate, ocspEnabled and crlEnabled must be false on the trust anchors. |
2 | CRL | The signer's validation result is evaluated only by CRL, ocspEnabled must be false and crlEnabled must be true on the trust anchors. |
3 | OCSP then CRL | The signer's validation result is evaluated by OCSP, if this fails is validated by CRL, ocspEnabled and crlEnabled must be true on the trust anchors. If this option is active, and any of the certificates are validated through CRL, then the final result of the validation will be WARNING. |
4 | OCSP | The signer's validation result is evaluated only by OCSP, ocspEnabled must be true and crlEnabled must be false on the trust anchors. If this option is active, and any of the certificates cannot be validated by OCSP, then the final result of the validation will be ERROR. |
The following table represents the possible values for the validationTimeLevel field.
Level | Value | Description |
---|---|---|
0 | VALIDATE at SIGN_TIME with EXPIRED CERTIFICATE | There is no restriction of the signature signing time. Any signing time is accepted. |
1 | VALIDATE at SIGN_TIME | There is no restriction of the signature signing time.Any signing time source is accepted. The signing time must be into the validity period of the certificate. |
2 | VALIDATE at TSASIGNINGTIME | A TSA signing time is required for all signatures. |
3 | VALIDATE at TRUSTED TSASIGNINGTIME | A TSA signing time is required for all signatures. |
{ "url": "acme", "version": "1.0.0", "description": "Acme Pilot", "status": "enabled", "certPolicyLevel": "3", "validationTimeLevel": "2", "trust": [ ... ] }
Trust Anchors
A trust anchor represents the list of trusted Certificate Authorities needed to validate an End-User certificate. The following are the possible fields that can be used to define a trust anchor for a given Certificate Authority.
Field | Description | Example |
---|---|---|
caCert | Certificate file for the Certification Authority in DER format. | config/certstore/CA.root.ClassB.G1.cer |
certFilter | Details a specific filter defined on this policy. It can be by any field of the Subject or Issuer. The example restricts the policy to accept exclusively End-User Certificates where the O (Organization) field included in the Subject field contains the text: “Acme Inc”. | filters=subject.rfc2254:(O=Acme Inc) |
{ ... "trust": [ { "caCert": "config/certstore/CertiSur.root.ClassB.G1.pilot.509.cer" }, { "caCert": "config/certstore/CertiSur.shared.ClassB.G1.pilot.509.cer", "certFilter": "filters=subject.rfc2254:(O=Acme Inc)" } ] }
CRL validation
Field | Description | Example |
---|---|---|
crlEnabled | CRL validation for the certificates issued by caCert is enabled. Possible values are true or false. | true |
crlURL | See crlURL table below for more details. | http://pki-crl.symauth.com/ca_4..3/LatestCRL.crl |
The following table represents the possible values for the "crlURL" field.
CRL Field | Description | Example |
---|---|---|
URL | If Internet access is available from the server where Debbie is installed, it is advisable to configure this field with the CRL URL. Debbie will download it every time it is needed or if the previously downloaded CRL has expired. | http://pki-crl.symauth.com/ca\_45a68..3/LatestCRL.crl |
file URI | If there is no Internet access from the server where Debbie is installed, the CRL can be downloaded from another server and copied to the location cacheDir defined on Debbie configuration file. The downloaded CRL must be referenced with this variable. | file://http\_\_\_pki-crl\_symauth\_com\_ca\_45..d3\_LatestCRL\_crl |
crlTimeout | Overwrite the expiration date of the CRL by a shorter value. If this value is different than 0, the next CRL will be downloaded at (CurrentCRL.ThisUpdate + crlTimeout) when crlTimeout is a positive value in seconds. 1hs = 3600, 6hs = 21600, | 21600 |
caPurgesCRL | Number of retention days in which an expired certificate is kept in the CRL by the CA. After that It is not possible to determine the revocation status for an expired certificate. If your CA does not purge the CRL you MUST set this to -1. By default is set to 30 days. | 30 |
{ ... { "caCert": "config/certstore/CertiSurClase3ACServiciosG1.prod.cer", "crlEnabled": "true", "caPurgesCRL": "false", "crlURL": "http://crl.certisur.net/C3/CertiSurClase3ACServiciosG1/latest.crl", "crlTimeout": "0" } }
OCSP validation
Field | Description | Example |
---|---|---|
ocspEnabled | OCSP validation for the certificates issued by caCert is enabled. Possible values are true or false. | true |
ocspURL | OCSP Responder URL. | http://pki-ocsp.digicert.com |
ocspCert | OCSP Responder signing certificate. This is necessary to verify the OCSP Response. | config/certstore/Sant..OCSP_responder.prod.509 |
testUserCert | End-User certificate to validate with the OCSP Responder. This is used to check if the OCSP Responder is available. | config/certstore/San..test_user.prod.509 |
caPurgesCRL | Number of retention days in which an expired certificate is kept in the CRL by the CA. After that It is not possible to determine the revocation status for an expired certificate. If your CA does not purge the CRL you MUST set this to -1. By default is set to 30 days. | 30 |
Sub Policies
A sub policy represents a set of modifiers that applies to a specific end-entity trust anchor.
Field | Required | Description | Example | Default |
---|---|---|---|---|
url | yes | URL where the sub policy validation service for a tenant is available. If several sub-policies have the same URL in the policy configuration file, only the first one found will work. For example, the sub policy will be accessible on "/acme/renew". | renew | |
certPolicyLevel | no | Overrides the signature's certificate validation level. See Policy Level table below for more details. | 1 | Parent policy value |
certValidityWindow | no | Sets a validity window to check the certificate expiration date. This allows taking an expired certificate as valid if it is in that window. | -30:30 | not set |
{ ... "subpolicy": [ { "url": "padessignature", "ignoreExpiredCertificate": "true", "ignoreSigningTime": "true", "certPolicyLevel": "2", "signatureValidityWindow": "-5:30", "checkCoversWholeDocument": "true" }, { "url": "renew", "certValidityWindow": "-30:30" } ] }
Sample Policy File
Following is the content of the "acme.policy.json" demo configuration file included in with the validation service distribution.
{ "url": "acme", "version": "3.0.0", "description": "Acme Pilot", "status": "enabled", "certPolicyLevel": "0", "validationTimeLevel": "1", "trust": [ { "caCert": "config/certstore/CertiSur.root.ClassB.G1.pilot.509.cer" }, { "caCert": "config/certstore/CertiSur.shared.ClassB.G1.pilot.509.cer", "certFilter": "filters=subject.rfc2254:(O=Acme Inc)" } ], "subpolicy": [ { "url": "padessignature", "certPolicyLevel": "2" }, { "url": "renew", "certValidityWindow": "-30:30" } ] }