Symmetric Cryptographic Accelerator Hard IP User Guide

Download PDF
ID 714305
Date 11/28/2025
Public
Document Table of Contents
Document Table of Contents x
1. Introduction 2. Interface Overview 3. Parameters 4. Designing with the IP 5. Block Description 6. Cryptographic IP Data Profiles 7. Configuration Registers 8. Design Example 9. Document Revision History for the Symmetric Cryptographic Accelerator Hard IP User Guide
1. Introduction x
1.1. Terminology 1.2. IP Overview 1.3. Release Information 1.4. Device Family Support 1.5. Resource Utilization
1.2. IP Overview x
1.2.1. IP Applications
2. Interface Overview x
2.1. Clock Signals 2.2. Reset Signals 2.3. AXI-ST Interface 2.4. AXI-Lite Interface
4. Designing with the IP x
4.1. Installing and Licensing IP Cores 4.2. Specifying the IP Parameters and Options 4.3. Generated File Structure 4.4. Symmetric Cryptographic Accelerator Hard IP Flow 4.5. Dynamically Disabling the SM4 Capability 4.6. Error Handling 4.7. Error Reporting 4.8. Resetting the IP 4.9. Channel Definition and Allocation 4.10. Byte Ordering 4.11. AXI-ST Single Packet Mode 4.12. AXI-ST Multiple Packet Mode
4.1. Installing and Licensing IP Cores x
4.1.1. IP Evaluation Mode
4.6. Error Handling x
4.6.1. Steps to Record and Report the Received Errors to the Soft Logic 4.6.2. Detected Error Handling 4.6.3. Key RAM ECC Error Handling
4.6.2. Detected Error Handling x
4.6.2.1. Recovering from a Recoverable Error 4.6.2.2. Recovering from an Internal Error
5. Block Description x
5.1. Reset Sequencer 5.2. AXI-ST Ready Latency 5.3. AXI Adapter 5.4. Integrity Check Value Comparison 5.5. GCM Padding and Depadding
5.3. AXI Adapter x
5.3.1. MAC Packing 5.3.2. Data Last Indicator 5.3.3. Stream and Channel ID Buffering 5.3.4. TKEEP and LAST_SEGMENT Signals Generation 5.3.5. MAC Dropping on Decryption
5.5. GCM Padding and Depadding x
5.5.1. GCM Padding 5.5.2. GCM Depadding
6. Cryptographic IP Data Profiles x
6.1. MAC Security Profile (MACsec) 6.2. IP Security Profile (IPsec) 6.3. Generic GCM Profile (GCM) 6.4. Generic XTS Profile (XTS)
6.1. MAC Security Profile (MACsec) x
6.1.1. MACsec Flow 6.1.2. AXI-ST Interface Using MAC Security (MACsec) Profile Pattern
6.2. IP Security Profile (IPsec) x
6.2.1. AXI-ST Interface Using IP Security (IPsec) Profile Pattern
6.3. Generic GCM Profile (GCM) x
6.3.1. AXI- ST Interface Using Generic GCM Profile Pattern
6.4. Generic XTS Profile (XTS) x
6.4.1. AXI-ST Interface Using Generic XTS Profile Pattern
8. Design Example x
8.1. Functional Description 8.2. Crypto VSIP Top Block Descriptions 8.3. Test Configurations 8.4. Software Requirements 8.5. Simulation Requirements 8.6. Steps to Generate the Design Example 8.7. Running Simulation Tests 8.8. Running Hardware Tests
8.2. Crypto VSIP Top Block Descriptions x
8.2.1. Clock and Reset 8.2.2. Host Interface
8.7. Running Simulation Tests x
8.7.1. Steps to Simulate the Design Example
8.8. Running Hardware Tests x
8.8.1. Supported Boards 8.8.2. Steps to Compile the Design Example for Hardware 8.8.3. Steps to Run the Design Example on Hardware
1. Introduction
2. Interface Overview
3. Parameters
4. Designing with the IP
5. Block Description
6. Cryptographic IP Data Profiles
7. Configuration Registers
8. Design Example
9. Document Revision History for the Symmetric Cryptographic Accelerator Hard IP User Guide

1.2. IP Overview

The Symmetric Cryptographic Accelerator Hard IP consists of the Advanced Encryption Standard (AES) and SM4 Inline Cryptographic Accelerator (ICA) subsystems. Each device supports two identical IP subsystems, located at the north and the south of the device periphery. You can also instantiate the IP as a standalone cryptographic accelerator engine.
Table 2.   Symmetric Cryptographic Accelerator Hard IP Features
Features Description
AES-GCM Mode
  • 128-bit and 256-bit key size
  • Encryption and decryption data paths
  • 128-bit authentication tag (MAC) using GMAC
  • Supports up to 1,024 multiple channels with zero latency switching between the states
  • Supports Auto Increment Logic for the AES counter based on the initial value
  • Meets NIST 800-38D standard
AES-XTS Mode
  • 256-bit and 512-bit key size. Includes the keys for the Tweak and the Data.
  • Encryption and decryption data paths
  • Generates hardware-based tweak encryption for the first and subsequent tweak keys based on the block or sequence inputs embedded in the initialization vector (IV).
  • Supports Ciphertext stealing for unaligned last data block sizes
  • Meets NIST 800-38E standard
SM4 Algorithm
  • 128-bit key size
  • Encryption and decryption data paths
  • Supports GCM and XTS modes
  • Meets OSCCA GB/T 32907-2016 standard
Interfaces
  • AXI Streaming (AXI-ST) interface protocol compliance on data streaming interface.
  • AXI4-Lite (AXI-Lite) interface protocol compliance on configuration interface.
  • Data streaming interface implements a single 512-bit interface full-duplex.
Performance
  • Cumulative throughput of 200 Gbps for AES encryption, decryption, or mixed encryption and decryption in GCM and XTS modes
  • Cumulative throughput of 200 Gbps for SM4 encryption and decryption in GCM and XTS modes
Certifications NIST CAVP:
  • AES-ECB
  • AES-GCM
  • AES-XTS
Other features
  • Supports AES cryptographic operations required for higher layer security applications such as TLS, MACSec, and IPsec.
  • Compatible with DTLS, TLS1.3, QUIC, secure computing and storage device encryption
  • Supports export compliance within the IP with fuses to disable the cryptographic modes or the entire IP
  • Error logging debug capabilities in registers

Section Content
IP Applications

Related Information
Level Two Title