One Identity Safeguard for Privileged Sessions 6.9.3 - Administration Guide

Encrypting a PKCS#11 PIN

The PKCS#11 PIN(s) must be protected by additional encryption. The indexerconfigcrypter tool must be used to encrypt the PIN(s).

To encrypt the PIN(s)

1. Encrypt the PIN.

   The PINs can be encrypted with a custom passphrase or a default one is used if no custom passphrase is provided. A custom passphrase is more secure, but interaction is needed to start or restart the external-indexer service. Using a custom passphrase is supported on hosts running CentOS 7 or later.

   Issue either of the following commands:

   • Using a default password (CentOS 6 or 7): indexerconfigcrypter --input <your-PIN>

   • Using a custom password (CentOS 7 or later): indexerconfigcrypter --input <your-PIN> --password

   It is possible to configure multiple slots. In that case, the PINs must be encrypted using the same passphrase.

2. Update the "pkcs11" object in the indexerworker.cfg file.

   The encrypted PINs must be stored in the "pin" field of the configuration file (in the example, a SoftHSM is used):

   ...
      "pkcs11": {
          "custom_password": true
          "slots": [
            {
              "library": "/usr/lib/softhsm/libsofthsm.so",
              "slot_id": 0,
              "pin": "<your-encrypted-PIN>"
            }
          ]
      }
   ...

Starting and restarting the external-indexer service when using a custom password for PKCS#11 PIN encryption

When you choose to encrypt the PKCS#11 PIN(s) using a custom password, on starting or restarting the external-indexer service, you are asked to enter your password using a special tool.

To provide your password using the required tool

1. Start the external-indexer service:

   systemctl start external-indexer

2. The external-indexer service prompts you to provide a password using the systemd-ask-password tool. Issue:

   systemd-tty-ask-password-agent

3. Provide the password at the prompt. You can use multiple agents to enter the password.

4. Once the external indexer(s) have been started or restarted, make sure that all the indexers have started up successfully.

   For example, on CentOS 7, you can use:

   systemctl status external-indexer

Configuring SoftHSM

SoftHSM is the software implementation of an HSM. It can be installed from the EPEL repository. The configuration of SoftHSM can be found at /etc/softhsm2.conf (CentOS 7), or /etc/softhsm.conf (CentOS 6).

The following describes how to configure SoftHSM.

To configure SoftHSM

1. Initialize directories for SoftHSM.

   mkdir -p /var/lib/softhsm
   chgrp -R indexer /var/lib/softhsm

2. Configure slots for softhsm1 (CentOS 6). For softhsm2 (CentOS 7), you can skip this step.

   cat /etc/softhsm.conf
   0:/var/lib/softhsm/slot0.db
   1:/var/lib/softhsm/slot1.db

3. Initialize slot 0 (softhsm1).

   softhsm --init-token --slot 0 --label "<your-slot-label>" –-<so-pin> topsecret --pin <your-SoftHSM-PIN>

4. Initialize a new slot (softhsm2) and get the slot ID:

   softhsm2-util --init-token --free --label "<your-slot-label>" --<so-pin> topsecret --pin <your-SoftHSM-PIN>
   SLOT_ID=$(softhsm2-util --show-slots | grep -B 15 "<your-slot-label>" | grep "Slot [0-9]" | head -n 1 | cut -d ' ' -f 2)

5. Import your keys. Your keys must be in the .der format.

   For softhsm1, use:

   pkcs11-tool --module /usr/lib/softhsm/libsofthsm.so -l -y privkey --slot 0 -w key.der -d 001 -a <your-key-label> --pin <your-SoftHSM-PIN>

   For softhsm2, use:

   pkcs11-tool --module /usr/lib/softhsm/libsofthsm2.so -l -y privkey --slot 0 -w key.der -d 001 -a <your-key-label> --pin <your-SoftHSM-PIN>

6. Make sure that the indexer user/group has execute right to the token directory and read right to the token files below the /var/lib/softhsm/tokens/ directory.

7. Test your SoftHSM configuration with the indexer.

   source /etc/indexer/external-indexer.env
   indexerworker -l -v 7 --pkcs11-lib "<your-SoftHSM-library>" --pkcs11-slot-id 0 --pkcs11-pin "<your-SoftHSM-PIN>"

8. Encrypt the PKCS#11 PIN(s). For detailed instructions, see Encrypting a PKCS#11 PIN.

9. Update the "pkcs11" object in the /etc/indexer/indexerworker.cfg file.

   ...
      "pkcs11": {
          "slots": [
            {
              "library": "/usr/lib/softhsm/libsofthsm.so",
              "slot_id": 0,
              "pin": "<your-encrypted-PIN>"
            }
          ]
      }
   ...

Configuring AWS CloudHSM

Amazon Web Services (AWS) CloudHSM provides hardware security modules in the AWS Cloud.

The following describes how to configure CloudHSM.

To configure CloudHSM

1. Test your environment as described in Setting up and testing the environment.

   Note that you will need to provide your CloudHSM PIN in the following format:

   "<your-CloudHSM-username:your-CloudHSM-PIN>"

2. Encrypt the PKCS#11 PIN(s). For detailed instructions, see Encrypting a PKCS#11 PIN.

3. Update the "pkcs11" object in the /etc/indexer/indexerworker.cfg file.

   ...
      "pkcs11": {
          "custom_password": true
          "slots": [
            {
              "library": "/opt/cloudhsm/lib/libcloudhsm_pkcs11.so",
              "slot_id": 1,
              "pin": "<your-encrypted-PIN>"
            }
          ]
      }
   ...