---
title: "DSM Accelerator [5.5] - February 02, 2026"
slug: "dsm-accelerator-5-5-february-02-2026"
updated: 2026-08-28T11:17:24Z
published: 2026-08-28T11:17:24Z
canonical: "support.fortanix.com/dsm-accelerator-5-5-february-02-2026"
---

> ## 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.

# DSM Accelerator [5.5] - February 02, 2026

## 1. Overview

This article provides an overview of the new features and improvements in the Fortanix Data Security Manager (DSM) Accelerator 5.5 release.

DSM Accelerator Webservice version - **1.31**

## 2. New Features and Improvements

- **DSM Accelerator Webservice:**
  - Added support for PKCS#8 password-protected private keys in Fortanix DSM Accelerator Webservice TLS server configuration, enabling secure TLS setup with encrypted keys using password or flag-based configuration (**JIRA: EXTREQ-1467**).

*For more information, refer to the* [*DSM Accelerator Webservice Developer Guide*](/v1/docs/dsm-accelerator-webservice-developer-guide#75-tls-configuration)*.*
  - Added certificate-based client application (app) authentication for Fortanix DSM Accelerator Webservice, allowing Fortanix DSM apps to authenticate using a client certificate instead of an API key (**JIRA: EXTREQ-1541**).

*For more information, refer to the* [*DSM Accelerator Webservice Developer Guide*](/v1/docs/dsm-accelerator-webservice-developer-guide#78-certificate-authentication)*.*
  - Added secure Database Master Key (DMK) caching for Oracle Transparent Data Encryption (TDE), integrating with Fortanix DSM Accelerator Webservice to improve resiliency and performance (**JIRA: PM-519**).
- **DSM Accelerator PKCS#11:**
  - Updated Fortanix DSM Accelerator PKCS#11 to achieve feature parity with Fortanix DSM Accelerator Webservice, including key algorithm and mode support, key caching, RSA wrap or unwrap operations, policy awareness, client certificate–based authentication, and cached key prioritization (**JIRA: PM-579**).

*For more information, refer to the* [*DSM Accelerator PKCS#11 Developer Guide*](/v1/docs/dsm-accelerator-pkcs11-developer-guide)*.*

## 3. Fortanix Data Security Manager Accelerator Performance Statistics

### 3.1 Runtime Environment

> [!NOTE]
> NOTE
> 
> The following table lists the standard recommended runtime environment. You can choose a higher configuration for better performance.
> 
> DSM Accelerator was run in the runtime environment listed below for performance testing.

| **Item** | **Specification** |
| --- | --- |
| Number of Cores | 4 |
| CPU | Intel(R) Xeon(R) CPU E5-2673 v4 @ 2.30GHz |
| RAM | 2 GiB |
| VM Type | Standard D4ds v4 Azure VM |
| Docker Runtime Configuration | `sudo docker run -d --network host --memory=1g --memory-swap=2g --log-driver json-file --log-opt max-size=100m` |

---

### 3.2 DSM Accelerator Webservice

> [!NOTE]
> NOTE
> 
> The performance numbers below are captured with a single node; if you need higher performance or throughput, then Fortanix recommends adding multiple nodes.

| **Key Types and Operations** | **Throughput (Operations/second on a 1-node cluster re-using a single TLS session)** |
| --- | --- |
| AES 256: CBC Encryption/Decryption | 20,147/20,095 |
| AES 256: GCM Encryption/Decryption | 21,564/21,243 |
| AES 256: FPE Encryption/Decryption | 9,314/9,355 |

---

### 3.3 Additional Modes

| **Key Types and Operations** | **Throughput (Operations/second on a 1-node cluster re-using a single TLS session)** |
| --- | --- |
| AES 256: CBCNOPAD Encryption/Decryption | 21,599/21,555 |
| AES 256: CFB Encryption/Decryption | 21,786/21,011 |
| AES 256: CTR Encryption/Decryption | 21,854/21,169 |
| AES 256: OFB Encryption/Decryption | 21,671/21,087 |
| AES 256: CCM Encryption/Decryption | 21,876/21,199 |