---
title: "PKCS#11 [4.21.2288]"
slug: "pkcs-11-4-21-2288"
updated: 2026-08-19T10:22:18Z
published: 2026-08-19T10:22:18Z
canonical: "support.fortanix.com/pkcs-11-4-21-2288"
---

> ## 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 [4.21.2288]

**Linux 64-bit**

## Linux 64-bit

### Download

[DEB package](https://download.fortanix.com/clients/4.21.2288/fortanix-pkcs11-4.21.2288-amd64.deb) **SHA256 sum:**

```plaintext
aabfe0eb73e7df5574e6c9181753f4e5d9176d63662f886ed34ece77c63f36b0
```

[RPM package](https://download.fortanix.com/clients/4.21.2288/fortanix-pkcs11-4.21.2288-0.x86_64.rpm) **SHA256 sum:**

```plaintext
b7b332f5d9a4f99d0ebc94cc5aae08d0ec38d7555766fc9ce616511c474b059a
```

[Library (.so file)](https://download.fortanix.com/clients/4.21.2288/fortanix_pkcs11_4.21.2288.so) **SHA256 sum:**

```plaintext
9732cd8f985bd250b90dfffa92ea6fb255794d128d21a22208f6edaa8ba8286c
```

### 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/4.19.2244/FortanixKmsClient-4.19.2244.msi) **SHA256 sum:**

```plaintext
d068147b3d13c7a9d1b9825da8af6b660b4a3766b2f32d4430d4c6ba4464ee55
```

### 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`