---
title: "DSM Accelerator [4.21] - September 22, 2023"
slug: "dsm-accelerator-4-21-september-22-2023"
updated: 2026-08-19T06:48:05Z
published: 2026-08-19T06:48:05Z
canonical: "support.fortanix.com/dsm-accelerator-4-21-september-22-2023"
---

> ## 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 [4.21] - September 22, 2023

## 1. Overview

This article provides an overview of general improvements and resolved issues in the Fortanix Data Security Manager (DSM) Accelerator 4.21 release.

## 2. New Features/Improvements

- **DSM Accelerator Webservice:**
  - Added support for encrypt operation using a key name for DSM Accelerator Webservice **(JIRA: PROD-7192).** *For more details, refer to* [*Developer’s Guide: DSM Accelerator Webservice*](/v1/docs/dsm-accelerator-webservice-developer-guide)

- **DSM Accelerator JCE Provider:**
  - Added support for the encrypt, decrypt, sign, and verify operations using a key name for DSM Accelerator Webservice **(JIRA: PROD-7192).**
  - Added support for encrypt operation using a key name for DSM Accelerator JCE Provider **(JIRA: PROD-7178)**.
  - Added support for tokenization key generation in the DSM Accelerator JCE Provider **(JIRA: PROD-7064)**.
  - Consolidated the DSM Accelerator JCE provider and Java SDK and published API documentation for consolidated DSM Java client (JCE and Java SDK) **(JIRA: PM-70).** *For more details, refer to* [*Developer’s Guide: DSM Accelerator JCE Provider*](/v1/docs/dsm-accelerator-jce-provider-developer-guide)*.*

## 3. Bug Fixes

- **DSM Accelerator Webservice:**
  - Fixed an issue where the DSM Accelerator Webservice did not work as expected when a rotated key that was deactivated before `cache_ttl` expiry was still able to perform encrypt and decrypt operations after `cache_ttl` expiry **(JIRA: PROD-7241)**.
  - Fixed an issue where the status code for DSM Accelerator Webservice showed 500 instead of 400 for batch sign Curve Ed25519/X25519 which is not supported **(JIRA: PROD-7007)**.

## 4. Fortanix Data Security Manager Accelerator Performance Statistics

### 4.1 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 | 16 GiB |
| Docker Runtime Configuration | `docker run -d --network host --memory=4g --memory-swap=6g --log-opt             max-size=100m` |

---

### 4.2 DSM Accelerator Webservice

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

| **Key Types and Operations** | **Throughput (Operations/second on a 1-node cluster)** |
| --- | --- |
| AES 256: CBC Encryption/Decryption | 15,899/15,934 |
| AES 256: GCM Encryption/Decryption | 15,988/16,390 |
| AES 256: FPE Encryption/Decryption | 4,859/4,757 |

---

### 4.3 Additional Modes

| **Key Types and Operations** | **Throughput (Operations/second on a 1-node cluster)** |
| --- | --- |
| AES 256: CBCNOPAD Encryption/Decryption | 16,409/16,563 |
| AES 256: CFB Encryption/Decryption | 16,047/16,376 |
| AES 256: CTR Encryption/Decryption | 16,704/16,716 |
| AES 256: OFB Encryption/Decryption | 16,832/16,817 |
| AES 256: CCM Encryption/Decryption | 15,790/16,112 |