---
title: "PKCS#11 [4.18.2231]"
slug: "pkcs-11-4-18-2231"
updated: 2026-08-19T10:22:35Z
published: 2026-08-19T10:22:35Z
canonical: "support.fortanix.com/pkcs-11-4-18-2231"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://support.fortanix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# PKCS#11 [4.18.2231]

**Linux 64-bit**

## Linux 64-bit

### Download

[DEB package](https://download.fortanix.com/clients/4.18.2231/fortanix-pkcs11-4.18.2231-amd64.deb) **SHA256 sum:**

```plaintext
c3740a511a380a6c0a1282c1aabbef2f9ac82300cc880f937b5fcec3d2898471
```

[RPM package](https://download.fortanix.com/clients/4.18.2231/fortanix-pkcs11-4.18.2231-0.x86_64.rpm) **SHA256 sum:**

```plaintext
99c4003f908422d2c59e0d443764e35c6c143f9b9c14eaae24c8cc4f58c3a8bb
```

[Library (.so file)](https://download.fortanix.com/clients/4.18.2231/fortanix_pkcs11_4.18.2231.so) **SHA256 sum:**

```plaintext
2f9c11628af4fa3df730d3486bb6db6b67bc9f59ca62841d01db7556450551a9
```

### Installation for DEB

The RPM and DEB installer copies the Fortanix Data Security Manager (DSM) PKCS#11 shared object file (library) to `/opt/fortanix/pkcs11/fortanix_pkcs11.so` . One can also download the `.so` file and use it directly.

Check the [Clients: PKCS#11 Library](/v1/docs/fortanix-dsm-clients-pkcs11-library) for more details.

### Installation for DEB from Public Repo

#### Steps to Download the DEB package

1. Add the following line to the file `/etc/apt/sources.list"`.

```plaintext
deb https://download.fortanix.com/linux/apt focal main
```
2. Download [https://download.fortanix.com/linux/apt/fortanix.gpg](https://download.fortanix.com/linux/apt/fortanix.gpg).
3. After downloading the file `fortanix.gpg`, run the following command to add the file to a trusted source.

```plaintext
sudo apt-key add <directory-path>/fortanix.gpg
```

Where, `directory-path` is the folder where you downloaded the file.
4. Run the following commands to get the latest package from the repo.

```plaintext
sudo apt update
```
5. Run the following command to install the package.

```plaintext
sudo apt install fortanix-pkcs11
```

#### Steps to Download the RPM package

1. Run the following command to go to the `yum.repos.d` directory.

```plaintext
cd /etc/yum.repos.d/
```
2. Create the file `em-agent.repo` in the folder from *Step 1* and add the following contents to it, then save.

```plaintext
[em-agent]
name=EM Agent  - $basearch
baseurl=https://download.fortanix.com/linux/yum/el7/x86_64
enabled=1
gpgkey=https://download.fortanix.com/linux/yum/fortanix.pub
gpgcheck=1
```
3. Run the following commands to get the latest package from the repo.

```plaintext
sudo yum update
```
4. Run the following command to install the package.

```plaintext
sudo yum install fortanix-pkcs11
```

**Windows 64-bit**

## Windows 64-bit

### Download

[Installer](https://download.fortanix.com/clients/4.18.2231/FortanixKmsClient-4.18.2231.msi) **SHA256 sum:**

```plaintext
3bba6ce7ac6ea0e3afcb32134750ef007dd01c1f996ef0740bde8143af6c6832
```

### Installation

The Windows installer installs the PKCS#11 Library, as well as the Fortanix CNG and EKM providers. The default installation location of PKCS#11 library is `C:\Program Files\Fortanix\KmsClient\FortanixKmsPkcs11.dll`