Certificate Authority

A Certificate Authority (CA) acts as the initially trusted shared entity between peers and issues signed certificates to make it possible for each party to trust the other. The CA issues and installs digital certificates and issues certificate signing requests (CSR).

A certificate generally acts as the identity of a server or client and this API can be used to issue server and client certificates for setting up trusted communication channels to the CipherTrust Manager system.

CipherTrust Manager distinguishes between local CAs and external CAs. A local CA can issue signed certificates since the private signing key is stored inside the CipherTrust Manager system. An external CA does not store the private key. Instead an external CA is used as a trusted entity for various interfaces and services inside the system. In this case certificates are issued externally. It is fine to have a mix of both.

The first time a CipherTrust Manager is started, a new local KeySecure root CA is automatically generated. This CA is used to issue initial server certificates for the interfaces available in the system.

An easy way to inspect the certificate chain is to view the certificates in your browser when you connect to the web interface. All interfaces and services will by default trust this CA, meaning that for interfaces that support client authentication, a client certificate, issued from this initial KeySecure root CA, will automatically be trusted by the system. If preferred, it is possible to create new local CAs and/or external CAs and use these instead for the internal interfaces and services.

Many CA operations can be performed via the CipherTrust Manager GUI.

Here are a few basic procedures for creating CAs and issuing certificates using the CLI Tool (ksctl).

Creating a local CA

When creating a new local CA, it remains pending until signed:

ksctl ca locals create --cn "Test CA" --csr-outfile csrfile

This returns a CSR, the key remains with the CipherTrust Manager. This CSR can be signed by an external CA.

To just self-sign the CA with a one year duration, use the id returned in the call above:

ksctl ca locals self-sign --id 3593c53b-fbeb-4edb-b84d-c85526ae2f83 -x 365

Issuing a signed certificate

CipherTrust Manager can only issue certificates for “local” CAs. To create a certificate, a CSR must first be generated.

For the highest level of security, it is usually best for the CSR to be generated externally to CipherTrust Manager so the private key is never exposed. However, you can also select Download CSR from the pending CA on the GUI as this will not include the private key.

For convenience, CipherTrust Manager can create a CSR and private key for you:

ksctl ca csr -cn "My Client" --csr-outfile csrfile --key-outfile keyfile

Use the following command to add Subject Alternative Names (SAN) values. If multiple values are specified, separate them with comma (optional).

ksctl ca csr -cn "My Client" --csr-outfile csrfile --key-outfile keyfile --dns "thalesgroup.com,thalesgroup2.com" --ips 1.1.1.1

Once you have a CSR, you can have the CipherTrust Manager issue a certificate:

ksctl ca locals certs issue --ca-id 3593c53b-fbeb-4edb-b84d-c85526ae2f83 --csr-infile csrfile -x 700 -o client

Certificate expiration check

The CipherTrust Manager inspects the expiration date of the following types of certificates every day, at a preset system time to log the record:

• Local CA certificates available on CipherTrust Manager

• Certificate issued by Local CA and available on CipherTrust Manager

• External CA certificates uploaded to CipherTrust Manager

The CipherTrust Manager then creates list a of certificates based on their expiration date:

• Certificates whose expiration dates are within 91 days

  This list is logged in the Records section once every week

• Certificates whose expiration dates are within 7 days

  This list is logged in the Records section once every day

• Certificates that are already expired

  This list is logged in the Records section once every day

You can also create alarm triggers for these records. For more details, go to Creating Alarm Trigger for Certificate Expiration.

Revoke/resume certificate signed by the local CA

The CipherTrust Manager allows you to revoke/resume the client/server certificates signed by the local CA. You can also revoke/resume the certificates of intermediate CAs.

In addition, you can:

• Publish and maintain the Certificate Revocation List (CRL) for the certificates revoked by the local CA.

• Migrate the revocation status of the certificates from KeySecure Classic to CipherTrust Manager.

• Resume the revoked certificates.

  Note

  • Revocation of local CA is not supported, only local CA signed certificates can be revoked.
  • You can only resume the certificates revoked with the reason "certificateHold".

** To revoke a certificate signed by local CA**

Syntax

ksctl ca locals certs revoke --ca-id <ca-identifier> --id <cert-identifier> --reason <revocation-reason>

Example request

ksctl ca locals certs revoke --ca-id localca-f8aabd4f-6459-4cb0-a26a-dfd88129bd5e --id cert-2526ebf8-8ac2-4e3b-8c2c-9752c3da536d --reason certificateHold

Example response

{
"id": "2526ebf8-8ac2-4e3b-8c2c-9752c3da536d",
"uri": "kylo:kylo:naboo:certs:2526ebf8-8ac2-4e3b-8c2c-9752c3da536d",
"account": "kylo:kylo:admin:accounts:kylo",
"createdAt": "2021-05-10T15:13:08.429514Z",
"updatedAt": "2021-05-12T06:45:05.421753856Z",
"cert": "-----BEGIN CERTIFICATE-----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\nP6WaJc1NqTcWns8H\n-----END CERTIFICATE-----\n",
"ca": "kylo:kylo:naboo:localca:f8aabd4f-6459-4cb0-a26a-dfd88129bd5e",
"revoked_reason": "certificateHold",
"revoked_at": "2021-05-12T06:45:05.421580648Z",
"state": "revoked",
"sha1Fingerprint": "C5BF83559D11C81ED84D8F7CC15094DA365D775D",
"sha256Fingerprint": "11C91396CB62BA28EDAE07E79681C25276C7B93DBA033DF08DEB13D9FDBE353F",
"sha512Fingerprint": "28C66DAA4775F37B4294964D45BCC9DB8BAD26C24EB4D9370DE6AB3BEF32C4D156D5FC45D98F6201F97F0D5DEBB43BBC6E24A1FE3743F64E5D1F0B9B2B93FCEE",
"serialNumber": "77322715608031240047279766081599394414",
"subject": "/CN=admin",
"issuer": "/C=US/ST=MD/L=Belcamp/O=Gemalto/CN=KeySecure Root CA",
"notBefore": "2021-05-09T15:13:08Z",
"notAfter": "2023-05-09T15:13:08Z"
}

** To resume a certificate signed by local CA**

Syntax

ksctl ca locals certs resume --ca-id <ca-identifier> --id <cert-identifier>

Example Request

ksctl ca locals certs resume --ca-id localca-f8aabd4f-6459-4cb0-a26a-dfd88129bd5e --id cert-2526ebf8-8ac2-4e3b-8c2c-9752c3da536d

Example Response

{
"id": "2526ebf8-8ac2-4e3b-8c2c-9752c3da536d",
"uri": "kylo:kylo:naboo:certs:2526ebf8-8ac2-4e3b-8c2c-9752c3da536d",
"account": "kylo:kylo:admin:accounts:kylo",
"createdAt": "2021-05-10T15:13:08.429514Z",
"updatedAt": "2021-05-12T06:44:54.401005002Z",
"cert": "-----BEGIN CERTIFICATE-----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\nP6WaJc1NqTcWns8H\n-----END CERTIFICATE-----\n",
"ca": "kylo:kylo:naboo:localca:f8aabd4f-6459-4cb0-a26a-dfd88129bd5e",
"revoked_at": "0001-01-01T00:00:00Z",
"state": "active",
"sha1Fingerprint": "C5BF83559D11C81ED84D8F7CC15094DA365D775D",
"sha256Fingerprint": "11C91396CB62BA28EDAE07E79681C25276C7B93DBA033DF08DEB13D9FDBE353F",
"sha512Fingerprint": "28C66DAA4775F37B4294964D45BCC9DB8BAD26C24EB4D9370DE6AB3BEF32C4D156D5FC45D98F6201F97F0D5DEBB43BBC6E24A1FE3743F64E5D1F0B9B2B93FCEE",
"serialNumber": "77322715608031240047279766081599394414",
"subject": "/CN=admin",
"issuer": "/C=US/ST=MD/L=Belcamp/O=Gemalto/CN=KeySecure Root CA",
"notBefore": "2021-05-09T15:13:08Z",
"notAfter": "2023-05-09T15:13:08Z"
}

Certificate revocation list (CRL)

CRL is a list of certificates that have been revoked by the CA before their scheduled expiration date and should no longer be trusted.

• On CipherTrust Manager, when you create a local root CA, one CRL file is created for the CA with the name <local_ca_id>.crl.

• It is mandatory to pass the valid DNS names while creating local root CA to ensure that the CRL URL is accessible. If DNS names are not provided, the default name keysecure.local is used.

• When a new certificate is issued by the local root ca, the certificate contains the URL of the CRL. You can check the URL of the CRL in the certificate under CRL Distribution Points by decoding it and can download the CRL file from the URL.

  Example: OpenSSL command to decode and check the URL of the CRL:

  
  openssl x509 -in intermediate/certs/bob2@example.com.cert.pem -noout -text
  X509v3 CRL Distribution Points:
  Full Name:
  URI:http://keysecure.local/1d073d93-b156-49ee-8533-e338953fc6d9.crl
  

Steps to download and decode the CRL

1. Download the CRL from the URL and decode it to check the revocation list.

   
   openssl crl -in 1d073d93-b156-49ee-8533-e338953fc6d9.crl.crl -noout -text
   

2. After decode, you can see the list of revoked certificates. It contains serial numbers of the revoked certificates. The serial numbers are in hex format; whereas CipherTrust Manager stores the serial numbers in decimal format.
   Therefore, to convert the serial number to decimal format, run:

   echo "ibase=16; <hex_serial_number>" | bc

Managing upcoming server certificate

When a server certificate is about to expire, we need to advertise to the service consumers (the clients) that a new replacement certificate chain will be coming soon. This allows the clients to prepare upfront to accept both old and new server CA chains in order to avoid any downtime when the Server CA certificate actually switches to the new one.

Therefore, a mechanism is introduced for clients to check if any pending new CA Server certificate is coming or not, to have the chance to timely download and configure their local trusted ca stores.

The following operations can be performed:

• Get upcoming certificate

• Put or upload upcoming certificate

• Delete upcoming certificate

• Apply upcoming certificate

All the responses in the sub-sequent sections will contain the certificate chain including the CA.

Get upcoming certificate

To fetch the upcoming server certificate:

Example request

ksctl interfaces renewal-cert get --name nae

Example response

{
    "certificates": "-----BEGIN CERTIFICATE-----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\n-----END CERTIFICATE-----\n"
}

It returns the public portion (only public key and CA chain) of the upcoming renewal certificate in the PEM format.

Upload upcoming certificate

To upload a new upcoming certificate server and its CA chain:

Example request

ksctl interfaces renewal-cert upload --name nae --file ./serverCertKey.pem --format pem

Make sure not to activate it yet for the interface.

The certificate and its associated key data must be in PEM format or base64 encoded PKCS12 format. The certificate can also include a chain of certificates. For the certificate chain, maintain this order - <server CA> <root CA>.

Example response

{
    "certificates": "-----BEGIN CERTIFICATE-----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\n-----END CERTIFICATE-----\n"
}

Delete upcoming certificate

To delete the previously uploaded upcoming renewal certificate for the specified interface:

Example request

ksctl interfaces renewal-cert delete --name nae

There will be no response if the certificate deleted successfully.

Apply upcoming certificate

To replace the existing or in-use certificate of the specified interface with the upcoming renewal certificate:

Example request

ksctl interfaces renewal-cert apply -n nae

There will be no response if the renewal certificate applies successfully.

Renewing CA certificate

The CipherTrust Manager allows you to renew the CA certificates in the certificate chain when they are about to expire. When the CA in the certificate chain expires, the entire certificate chain validation fails.
In such scenarios, the user has to create a new CA and renew the client/server certificates or both using the new CA. 

When to renew

To avoid any service downtime, it is recommended to prepare the new CA certificate chain in advance before the CA expiration. During the overlapping period, the new server certificate chain as described in the below section should be downloaded and added to the trust store in the client's setup. 

How to renew

The CA certificate chain renewal process contains the following steps as described in the below headings.

Create a new CA

The CipherTrust Manager provides a utility that copies the CSR attributes of the old CA while creating a new CA. Only key-pair and validity/expiration date are altered. To copy the CSR attributes of the old CA, use the copy_from_ca: <old_ca_id> field.

Example request

ksctl ca locals create --cn example.com --copy-from-ca b1963e85-02e1-462d-a436-a5e11cecca01

Example response

{
    "id": "305c1af0-e087-4004-aeba-d59f275ac477",
    "uri": "kylo:kylo:naboo:localca:305c1af0-e087-4004-aeba-d59f275ac477",
    "account": "kylo:kylo:admin:accounts:kylo",
    "createdAt": "2023-03-22T07:04:18.33905Z",
    "updatedAt": "2023-03-22T07:04:18.33905Z",
    "name": "example-CA",
    "state": "pending",
    "csr": "-----BEGIN CERTIFICATE REQUEST-----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\n6/tjV1ldCwtbfhKesGs16A61u1hkOXbJVZvKFczrZmg0TmcYcG+B2ARs\n-----END CERTIFICATE REQUEST-----\n",
    "subject": "/C=US/ST=TX/L=Austin/O=Thales/CN=example.com",
    "notBefore": "0001-01-01T00:00:00Z",
    "notAfter": "0001-01-01T00:00:00Z",
    "sha1Fingerprint": "7666371994B5A8EB88F25925108EEE381629F20A",
    "sha256Fingerprint": "48D3918E611D51FB37643146461FBB78B582AF528766C4E76FF2350F6011152F",
    "sha512Fingerprint": "491913CB31D2567BFE7EE85B9F01B4D0E63A1B64C06E145EB111002FA6C649F28D4A9C52C307ECF554BC35CF906A1E1EFBB1FD29A9CF193E99144B37CD86E1FE"
}

This operation returns a CSR that either can be self-signed or signed by another CA.

Renew client certificate using new CA

After the new CA is created, renew the client certificate using the new CA.

1. For clients that have a profile associated, use the following steps to renew the client certificate: 

   1. Update the client profile with the new CA using the ca_id.
      
      Example request

      ksctl clientmgmt profiles update --profile-id 2fa716db-2264-473f-86a6-1c0d31c69fdc --ca_id localca-b1963e85-02e1-462d-a436-a5e11cecca01
      

      Example response

      {
          "id": "2fa716db-2264-473f-86a6-1c0d31c69fdc",
          "uri": "kylo:kylo:client-management:generic-client-profiles:ceb226b8-8151-4e26-ab6c-038b4ae797e8",
          "account": "kylo:kylo:admin:accounts:kylo",
          "createdAt": "2023-01-12T17:33:11.690693Z",
          "updatedAt": "2023-01-12T23:27:06.275532Z",
          "ca_id": "localca-b1963e85-02e1-462d-a436-a5e11cecca01",
          "csr_params": {
              "csr_city": "example-city",
              "csr_cn": "example.com",
              "csr_country": "example",
              "csr_email": "john.doe@example.com",
              "csr_org_name": "example",
              "csr_org_unit": "example tech",
              "csr_state": "example-state",
              "csr_uid": ""
          }
      }
      

   2. Renew the client certificate.
      
      Example request

      ksctl clientmgmt clients renew --client-id 1e33456b-8782-43a2-9efe-b415dc76ce52 --cert-duration 730
      

      Example response

      {
          "client_id": "1e33456b-8782-43a2-9efe-b415dc76ce52",
          "cert": "-----BEGIN CERTIFICATE----- MIIDfTCCAWWgAwIBAgIRAPvsR8igXyZzpMAnmkgldAwwDQYJKoZIhvcNAQELBQAw WjELMAkGA1UEBhMCVVMxCzAJBgNVBAgTAk1EMRAwDgYDVQQHEwdCZWxjYW1wMRAw DgYDVQQKEwdHZW1hbHRvMRowGAYDVQQDExFLZXlTZWN1cmUgUm9vdCBDQTAeFw0x ODEyMTgwMDE2MjZaFw0yMDEyMTcwMDE2MjZaMBExDzANBgNVBAMTBnRlc3RlcjB2 MBAGByqGSM49AgEGBSuBBAAiA2IABEvBmz1WRQmfiG2IGOjE7fpPyDTCNwvqSXsW HAhrVCRDOmPLuaiVn08/k7zRFum5UxcIWjwxJ5tnO7Z38Y3gKIyE42mHINqQHPOT cz9JLKqaGALwZtQCzB61M0ul7dGA5aM1MDMwDgYDVR0PAQH/BAQDAgOIMBMGA1Ud JQQMMAoGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwDQYJKoZIhvcNAQELBQADggIB AK7rTYW1+woOfHOLeYjs6jobO7kROm71ffdVwcHIMS3IE0B1eLdteKdG3yy2znAy VU7Jkwo2396Z9cPofrKt95wURAkSYvtz3IpTL9ibrpqJ47XxEXLHl+OycWdYoqAm YJe4A/mW3OxdR4kPbxnDXPNMZiId2xSyzkrEqaFTBBtlkdjuljEfQraKW7TiQovd dKb8xzAgozuZ4C200GlKbgjPkRF4iEXk6sihzYikmyE0s5VBEyAGvdv+s6rv6+4n mbaLkTF/ReXJryIRLDJ1uWN/PDKIqGyU1IrB26wYUWEG+4xcT1LqBxS2HL0ko1Cr 5yeWMEo952YyGeMwW0oWzhIDMxPVRXEfRu0nG35K2Gpz4KywhFVkQ1lrd7/FLwUH mrMtMwr5LG14I1NG3kEz+UVcdwfCeYxnIGW/u9CbUSmedlklZtuXjEN6bQdP+oZi f32u0mI4MSHYK55bdMWw7Rr4IlGdKRdUDOl71uZt8nztQuWVHTrii34gN5Hvz4EY g7jpDq9ZXpb1ZtLmEq2TM8XzyBzJkdIAT304L666826cle1kOgsZQw08W72ju02B 1qj/HtqGoRXPw1vk+y2XIYIwcPP3T6YctJA6TMaFZ1lIKoWWflT0uqFo19CadC8z PylaiQwwuJGV7MmJ7lC8LmYUP2Pj2v+S+5s8j0QgY0C5 -----END CERTIFICATE----- ",
          "csr": "-----BEGIN CERTIFICATE REQUEST-----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\nDJXbUwe5ubTKH9Eqo6TIu1sxdreKz1ONvlYV\n-----END CERTIFICATE REQUEST-----\n",
          "ca_cert": "-----BEGIN CERTIFICATE-----\nMIIFoDJlbGNhbXAxEDAO\nMTUxMFowWjELMAkGA1UEBhMCVVMxCzAJBgNV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\nMZtV9Q==\n-----END CERTIFICATE-----\n"
      }
      

2. For clients that don't have any profile associated, run the following command and pass the ca_id in the request:

   Example request

   ksctl clientmgmt clients renew --client-id 72e24314-dc1e-4bfe-80c1-8127900cee9b --ca_id 911671ca-6c15-45cf-a0a8-bcde9e82f721 --cert-duration 730
   

Renew server certificate using new CA

To renew the server certificate using the new CA, perform the following steps:

1. Issue a new server certificate from the new CA. 

2. Create a certificate chain and combine them into a single PEM or PKCS12 file. The file should include the following in the indicated order:

   a. Server certificate

   b. Any intermediate certificate authorities that sign the server certificate. Start with the intermediate CA that issued the server certificate. Next, add the issuer of the intermediate CA, if any. Continue adding any intermediate CAs higher up the hierarchy, each time adding the issuer of the last certificate you uploaded.

   c. The root CA that signs any intermediate CAs. If there are no intermediate CAs, add the root CA that issued the server certificate.

   d. The server certificate's private key.

3. Upload the certificate chain on the CipherTrust Manager.

   Example request

   ksctl interfaces renewal-cert upload --name nae --file ./serverCertKey.pem --format pem
   

   serverCertKey.pem

   -----BEGIN CERTIFICATE-----
   MIIEqjCCApKgAwIBAgIQZkQE+oYbUzqL+bmYF2f3VjANBgkqhkiG9w0BAQsFADBa
   MQswCQYDVQQGEwJVUzELMAkGA1UECBMCVFgxDzANBgNVBAcTBkF1c3RpbjEPMA0G
   A1UEChMGVGhhbGVzMRwwGgYDVQQDExNDaXBoZXJUcnVzdCBSb290IENBMB4XDTIz
   MDMyMjA2MTExOVoXDTMzMDMxODA5MzM1OFowDjEMMAoGA1UEAxMDbmFlMIIBIjAN
   BgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuB2UJMu2lMYSx181SaLKXxuOrz39
   DFd6yae+fzFYXzyZxudRDeHMSt0knPoV2L3Wsfp8PibtAKHyUK6b8Ego9Ccah16X
   YeOmeehBcYk/IwbUcp0LAW4/4lB/a++Gkd9HPmUmOezbVMOyjk4LoerSLiqfbXIU
   HpbrFcxuTNKjve1ymMMT2LubguXWu6xPB6faZtspn3ZB22FgqT4KPULUrDuiTTJ3
   wXJyKCIEb5kpEIk56u6aE2N+IGQ2gFWN9tHWr6SwjQNm7QhdV63y5+JLMXyHuINf
   Lr24fHEBUoSptbu4yhTu5t7hlO5TTKIV/PBjjvbYtt0uYIcQhw3U5qhQWQIDAQAB
   o4G3MIG0MA4GA1UdDwEB/wQEAwIDiDATBgNVHSUEDDAKBggrBgEFBQcDATAMBgNV
   HRMBAf8EAjAAMB8GA1UdIwQYMBaAFDEexvfPs6aqKYwDCCc6r7dQUEhKMF4GA1Ud
   HwRXMFUwU6BRoE+GTWh0dHA6Ly9jaXBoZXJ0cnVzdG1hbmFnZXIubG9jYWwvY3Js
   cy9iMTk2M2U4NS0wMmUxLTQ2MmQtYTQzNi1hNWUxMWNlY2NhMDEuY3JsMA0GCSqG
   SIb3DQEBCwUAA4ICAQA+4SrI4C42l4C8Aw5CAlbPdLFpOMoABwaCg2p0DqR0Su7E
   XZSZexDxod8w/5aNZAJ2rrHCJqwaDoKehNfaa/fQ/wDhVPkw6Nn2gjn6IEVNpxgU
   BQbE+i0vmU0NnsHF6VEMh3299sf94K9IxHqZbDgogBeBLxtqjvLSsECeoHmMfL2V
   /GfzMXKsiHp97gNwK8Mt6vWA4uJ/ojhK5mUlfRoEp4MyH6IuauLoWMNDGQ9xEmj9
   RYKzZgZsEraS3sOLj3ZWDkpF/tGMAiadqRav9Zyb7/mMJ014RZdpRKMtLFQ/xqnM
   ZPsKYj0g+Q9BfK2vRKmTX2phTnjqeoVTy3qB6XxIHItmViURCT0t40tva7Ici89U
   xYanshAtFyCzq+1aMKbt+SeDD6jo2Q4LBNnMTK8liZqMhNUs3A0rz1mTlpUbiLBi
   d4Nz8d55iJxwOMSkbdQvWpoXHJnDEQW9d/9KFgnJu4nR8192Yta5BuxvuZHY57HL
   riA3FJ+VFzZeZpEJOdUIpaAfGcsMBWd+irH+uPA70bcrkIlF+9YCr81LOcv7gY7l
   8cIMrAIkMjY3YMOgXmqxzHq1WeooHKFrtrjYJDL9gVeKn2EmMWCSYY1lKXzZ1pgG
   mdEOyrSYjCYgMyj5vp/Irfl57KwVVUo5DHzVx9fBLWAosKdeXNgyrXwhEUzx9A==
   -----END CERTIFICATE-----
   -----BEGIN RSA PRIVATE KEY-----
   MIIEpQIBAAKCAQEAuB2UJMu2lMYSx181SaLKXxuOrz39DFd6yae+fzFYXzyZxudR
   DeHMSt0knPoV2L3Wsfp8PibtAKHyUK6b8Ego9Ccah16XYeOmeehBcYk/IwbUcp0L
   AW4/4lB/a++Gkd9HPmUmOezbVMOyjk4LoerSLiqfbXIUHpbrFcxuTNKjve1ymMMT
   2LubguXWu6xPB6faZtspn3ZB22FgqT4KPULUrDuiTTJ3wXJyKCIEb5kpEIk56u6a
   E2N+IGQ2gFWN9tHWr6SwjQNm7QhdV63y5+JLMXyHuINfLr24fHEBUoSptbu4yhTu
   5t7hlO5TTKIV/PBjjvbYtt0uYIcQhw3U5qhQWQIDAQABAoIBAQCmXywgN+kr9PTB
   LlqDyNPgL5G272f7wA0Xrjnoy9lUbflzkFFhHvoxaDYOl7ooGhuoxnWA4EHoAW9q
   0u3cqgg/4BoL20EmVsV3gZWpl+DysNhHHXv1df/KbP1HtrE+nanOSy7IxyzHIvP1
   vbarQPtedmuMRbrCjZOvJgVB7FHEbAP8BG+qsGHU/6EOlQBvskoR7EdwuZ/q12n4
   1as0Sy0qAtLhPcdOA+iUXWvxTSm5GVO/+9I/xs/SDT4kI8CgBgyQpuH0B8j5Gw9W
   Y3NSn8ahXhy9mh1tGY4ltJSby6F3YUy57I117loJ8w4fRqfQEdxr6rQgxvRNM36h
   DuSefqxFAoGBAOzAcvrbSW7uiHjnz37xbr7AdegF47dtOJnoIXYKNF3MQ3lw5PxM
   wc+SMJqpL84sG6OZXxs9qOxj2ZCrkthzPJxEhnOp1qGd1jvL4pW5N4e8cXF3i5k/
   qY+l2JZOHuy55tIO8vUXwma0bDnU+YrC7APb6AtaOVi96EjU8QITzqmXAoGBAMcV
   mpovSrjbVrAEEe9/XPmnlk0Sk2GDWSHGIcdwCVXmWqwTA20Yra8z6Ax26ARcotKw
   eTyEMA5LQh1l2MytLaAqTfjIPrpD3ZsIJ0JWYmlvOLwxqVcgesx+YaEvN8tiBOR4
   HYNWJteDWgXHrbNX45Q6BOYDPorjoa5vb4P91bOPAoGAEqBBa4L9EAEsM3bpWC9e
   axtxK0PrWm75WQJuP38mB4sec9tx6HeRd+ckc8aDwFCwC/rxBI+hTpe8cilNcEIA
   rrqlaUwfWq+0PxgXR3g+6irlMewZy4C6slZ1571VqYImqrgKXUX1QWdIbHRY/ZXA
   Q711UA9VG6o1MCWwoF02kRkCgYEAqb4r0WadKTwqj20I9dD8LwjKx/AcpTnel0Nd
   rbRC4XDEwo57j1tJS2bQZUBE1uM9GLLKy+RRLP7R4kriLLFDg5pOXN4vTZVrrzGm
   d5M72XWxRBR7tAPHb/AZwdqGkeyDC2G2mDKub3ZZHTCBU7aOHeXSI2OEwdsQEbCF
   vl6BBNUCgYEApKwKLv+u9KrK/bdQCYsNTLXTeuiZh8FbnYZtT3dXvgsFUiCUdOGI
   jlXLL6+p7Cs+O2k145WCb6yFzk5X4Z9y0gV7jIkumRX07QA5K5Zdfjrxx4cBjn2y
   8ZnEXTu3PkbgPlkIalAaSW19C5JgLoRCPTKT/taDJaSKa/L4RN1iv2o=
   -----END RSA PRIVATE KEY-----
   

   Example response

   {
       "certificates": "-----BEGIN CERTIFICATE-----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\n-----END CERTIFICATE-----\n"
   }
   

4. For clients, the chain uploaded in the previous step is available to download.

   Example request

   ksctl interfaces renewal-cert get --name nae
   

   Example response

   {
       "certificates": "-----BEGIN CERTIFICATE-----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\n-----END CERTIFICATE-----\n"
   }
   

   Now, the clients can use this new chain to setup their environment.

5. After the clients have been updated with the new certificate chain, the admin can apply the new certificate chain on the CipherTrust Manager. This replaces the existing server certificates with the newly generated server certificates.

   Example request

   ksctl interfaces renewal-cert apply --name nae
   

   There will be no response if the new certificate chain is applied successfully.

   If admin doesn't apply the new certificate chain manually on the CipherTrust Manager, the auto-apply option is triggered when the CA expires.

Creating an external CA

To create an external CA you just need to upload the PEM-formatted certificate file:

ksctl ca externals upload --cert-infile mycert.pem

Verifying revocation status of client certificates

The CipherTrust Manager can be configured to verify the revocation status of client certificate presented to NAE or KMIP interface before establishing a connection with the client.

To configure the CipherTrust Manager for inspecting the client certificate revocation status:

• Select the TLS verify client certInterface Mode.

• Enable the Certificate Revocation Check.

A certificate contains an OCSP responder URL and a Certificate Revocation List (CRL) URL, which are used for verifying the revocation status of the certificate.

Let's understand how CipherTrust Manager verifies the revocation status of a certificate and permits/drops connection requests in such cases:

CipherTrust Manager looks the client certificate for OCSP responder URL and CRL URL.

1. If OCSP URL is present

   CipherTrust Manager accesses this URL to verify the revocation status of the Client Certificate.

   Note

   • The certificate to be verified must contain the URL of the certificate issuer(CA). The issuer certificate should be specified using the AIA extension of X.509. The issuer URL should be a http URL and must be accessible.

   • If the issuer URL is not specified in the certificate, the certificate revocation check "Soft Fails" and the connection is created.

   1. If OCSP URL is accessible, the status of certificate gets verified successfully, and CipherTrust Manager allows/drops connection request accordingly.

   2. If OCSP URL is not accessible due to any reason, CipherTrust Manager considers the situation as a "Soft Fail". It allows the connection to establish, but reports a warning. This warning audit log and its details can be viewed in the Records.

2. If OCSP URL is not present, but CRL URL is present

   CipherTrust Manager verifies the status of certificate using the CRL, and allows/drops connection request accordingly.

   1. If CRL URL is accessible, the status of certificate gets verified successfully, and CipherTrust Manager allows/drops connection request accordingly.

   2. If CRL URL is not accessible due to any reason, CipherTrust Manager considers the situation as a "Soft Fail". It allows the connection to establish, but reports a warning. This warning audit log and its details can be viewed in the Records.

3. If both OCSP URL and CRL URL are not present

   CipherTrust Manager considers the client certificate to be signed by its local CA, and allows the connection to establish.

   Note

   In any case, if the certificate is found to be revoked, CipherTrust Manager drops the connection request and logs it in Records.

OCSP and CRL caching

As stated above, verifying the revocation status of a certificate involves establishing a connection with the URL (OCSP or CRL) present in the certificate, and verifying its revocation status. Once the revocation status of a certificate is verified, CipherTrust Manager stores this information for some preset time.

Let's understand how long this information is stored in and how it is used in this time frame:

• For OCSP method

  After successfully connecting to the OCSP URL, CipherTrust Manager stores the revocation status of the client certificate for a duration of 5 minutes.

  • If CipherTrust Manager receives another connection request from the same client within 5 minutes of a previously successful connection, then CipherTrust Manager refers to the cached revocation status value to verify its revocation status.

  • If CipherTrust Manager recieves another connection request from the same client after 5 minutes of a previously successful connection, then CipherTrust Manager verifies its revocation status through the OCSP URL again.

• For CRL method

  Each CA promises to update its CRL at the day and time specified in the Next Update field for that CA. While performing a certificate revocation check, the CipherTrust Manager inspects the Next Update value for the CRL associated with each CA on the CipherTrust Manager.

  • If the Next Update value for that CRL is in the past, the CipherTrust Manager attempts to connect to the CRL distribution point (CDP) for the CA to download the updated CRL.

  • If the Next Update value for that CRL is in the future, the CipherTrust Manager waits until that specified time to attempt to connect to the CDP and download the updated CRL.

Enabling/disabling certificate revocation check

The Certificate Revocation Check is enabled by default. You can enable or disable the certification revocation Check using:

• API playground

  Refer to "Properties" section (/v1/configs/properties).

• CLI tool (ksctl)

  Refer the following examples:

  • Command to enable Certificate Revocation Check

    ksctl properties modify -n ENABLE_CERT_REV_CHECK -p true
    

  • Command to disable Certificate Revocation Check

    ksctl properties modify -n ENABLE_CERT_REV_CHECK -p false
    

  • Available Flags:

    Flags	Input Type	Description
    -h, --help	not applicable	Command help
    -n, --name	string	Name of the system configuration
    -p, --value	string	Value to be set for the system configuration

Getting the fingerprint of the CA certificate

The fingerprint of the old CA certificate that was used to register the client with the CipherTrust Manager is needed when re registering a client. A CipherTrust Manager administrator can provide you the fingerprint.

Fingerprint of the CA certificate can be viewed on the GUI or the API playground.

On the API Playground

To get the fingerprint of a CA certificate:

1. Acquire an authorization token.

2. In the left pane of the API playground, click Certificate Authority.

3. Under Certificate Authority, click Get local CA. The Get section of the API playground is displayed in the right pane.

4. Click id in /v1/ca/local-cas/{id}.

5. Enter id of the local CA in the text box.

6. Click GET. Details of the CA including fingerprints are displayed in the output. Only sha256Fingerprint and sha512Fingerprint are supported for reregistration.

7. Copy the desired fingerprint. This fingerprint will be used when re-registering clients.

Similarly, you can get fingerprint of external CA certificates.

On the GUI

To get the fingerprint of a CA certificate:

1. Log on to the CipherTrust Manager as administrator.

2. In the left pane, click CA > Local. The list of available CAs is displayed.

3. Click the ellipsis icon corresponding to the CA.

4. Click Details. Details of the CA including fingerprints are displayed. Only sha256Fingerprint and sha512Fingerprint are supported for reregistration.

5. Copy the desired fingerprint. This fingerprint will be used when re-registering clients.

Similarly, you can get fingerprint of external CA certificates.

Managing usage of certificate authority (CA)

You can manage the usage of CA on individual CipherTrust Manager domains. The CipherTrust Manager supports user and client authentication.

• Client authentication: If enabled, the certificates signed by the CA can be used for client authentication in that domain.

• User authentication: If enabled, the certificates signed by the CA can be used for user authentication in that domain.

If authentication is disabled, the CipherTrust Manager domain does not trust the CA for respective authentication mechanisms, and the certificates are rejected even if valid.

Updating usage of a local CA

To update usage of a local CA, run:

Syntax

ksctl ca locals update --id <ca-identifier> --allow-user-authentication <true|false> --allow-client-authentication <true|false>

Example request

ksctl ca locals update --id e66d047a-2f67-48bf-bcac-862ac773e12a --allow-user-authentication true --allow-client-authentication false

Example response

{
    "id": "09e3feb5-7c37-4345-9f05-14a95eb4acd9",
    "uri": "kylo:kylo:naboo:localca:09e3feb5-7c37-4345-9f05-14a95eb4acd9",
    "account": "kylo:kylo:admin:accounts:kylo",
    "createdAt": "2022-01-04T16:55:08.995526Z",
    "updatedAt": "2022-01-05T07:31:10.468173266Z",
    "name": "admin",
    "state": "active",
    "csr": "",
    "cert": "-----BEGIN CERTIFICATE-----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\nFbsmjX42K8fukNqzm39w8vM4o+lhnb5J4bRyghbD/Ej67F6Myw==\n-----END CERTIFICATE-----\n",
    "serialNumber": "62703269446467328287939974236420428198",
    "subject": "/CN=adminCA",
    "issuer": "/CN=adminCA",
    "notBefore": "2022-01-03T16:55:12Z",
    "notAfter": "2023-01-03T16:55:12Z",
    "sha1Fingerprint": "B3673DFB030A894EF71A71C0C382E78455C1DA84",
    "sha256Fingerprint": "0242266C65ECA9BB893A75EC425A107CCC92C0BEED8224AD87A3A64E9E077739",
    "sha512Fingerprint": "4B20E210A6FE04D5A086346E809076A17C47873D29F1DC071308121BAF2D2AD9C516726E48364281A15224CFA0365B8AFED34B61D8C109DEDBDF4AB365BBF744",
    "purpose": {
        "client_authentication": "Disabled",
        "user_authentication": "Enabled"
    }
}

Updating usage of an external CA

To update usage of an external CA, run:

Syntax

ksctl ca externals update --id <ca-identifier> --allow-user-authentication <true|false> --allow-client-authentication <true|false>

Example request

ksctl ca externals update --id 5cb55f29-2749-4960-a912-98aeff6accda --allow-user-authentication true --allow-client-authentication false

Example response

{
    "id": "f029ff14-9f27-4015-8609-23f41b6de898",
    "uri": "kylo:kylo:naboo:external_ca:f029ff14-9f27-4015-8609-23f41b6de898",
    "account": "kylo:kylo:admin:accounts:kylo",
    "createdAt": "2022-01-04T16:57:34.723799Z",
    "updatedAt": "2022-01-05T07:32:10.243282197Z",
    "name": "1234",
    "cert": "-----BEGIN CERTIFICATE-----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\nFbsmjX42K8fukNqzm39w8vM4o+lhnb5J4bRyghbD/Ej67F6Myw==\n-----END CERTIFICATE-----",
    "purpose": {
    "client_authentication": "Disabled",
    "user_authentication": "Enabled"
    },
    "serialNumber": "62703269446467328287939974236420428198",
    "subject": "/CN=adminCA",
    "issuer": "/CN=adminCA",
    "notBefore": "2022-01-03T16:55:12Z",
    "notAfter": "2023-01-03T16:55:12Z",
    "sha1Fingerprint": "B3673DFB030A894EF71A71C0C382E78455C1DA84",
    "sha256Fingerprint": "0242266C65ECA9BB893A75EC425A107CCC92C0BEED8224AD87A3A64E9E077739",
    "sha512Fingerprint": "4B20E210A6FE04D5A086346E809076A17C47873D29F1DC071308121BAF2D2AD9C516726E48364281A15224CFA0365B8AFED34B61D8C109DEDBDF4AB365BBF744"
}

Certificate format in REST-API and UI

If you are uploading certificates using the REST API, certificates are encoded in a JSON string and have \n characters to indicate line endings. CipherTrust Manager's UI web console does not have these characters, so it's easiest to remain in the same interface for certificate operations, and/or pass in and export certificates using a file instead of a pasted string wherever possible. If you are copy-pasting certificate strings between the UI and other interfaces, you must re-encode the certificate strings.

• To change PEM-encoded strings to JSON, use echo $v | jq -R --slurp where $v is a variable for the string. This is needed to format certificates in the UI to REST API format.

• To change JSON encoded strings to PEM, use echo $v | /usr/local/bin/jq -r, where $v is a variable for the string.This is needed to format certificates from REST API to the UI format.