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QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
Utilities & Libraries
QNX devcrypto Service
The devcrypto Plugin API (devcrypto_plugin.h)
The devcrypto plugin API allows you to create a software backend to the devcrypto service, which provides access to cryptographic accelerators.
devcrypto_digest_op_copy
Copy a digest algorithm state

QNX Momentics IDE User's Guide
This User's Guide describes version 8.0 of the Integrated Development Environment (IDE) that's part of the QNX Tool Suite.
QNX Software Development Platform
QNX SDP is a cross-compiling and debugging environment, including an IDE and command-line tools, for building binary images and programs for target boards running the QNX OS 8.0.
- Quickstart Guide
- System Architecture
  The System Architecture guide accompanies the QNX OS and is intended for both application developers and end-users.
- OS Components & Operations
- Graphics
- Programming
- System Security Guide
  The QNX System Security Guide is intended for both system integrators who are responsible for the security of a QNX OS system and developers who want to create a QNX OS resource manager free from vulnerabilities.
- Utilities & Libraries
  - C Library Reference
  - Devctl and Ioctl Commands
  - JSON Library Reference
  - PAM Reference
  - QNX Helpers Developer's Guide
    These libraries provide QNX helpers, including helpers that assist with logging, string conversion, and number and type sizes.
  - SPI Framework Technote
  - QNX Cryptography Library
    The QNX Cryptography Library (qcrypto) is a flexible cryptography framework that allows you to choose which cryptography provider responds to requests on a per-process basis.
  - QNX devcrypto Service
    - The devcrypto Service
    - The devcrypto Plugin API (devcrypto_plugin.h)
      The devcrypto plugin API allows you to create a software backend to the devcrypto service, which provides access to cryptographic accelerators.
      - Definitions in devcrypto_plugin.h
        Preprocessor macro definitions for the devcrypto_plugin.h header file in the devcr library
      - devcrypto_aead_cipher_op_decrypt
        Decrypt data using the specified AEAD cipher algorithm state
      - devcrypto_aead_cipher_op_encrypt
        Encrypt data using the specified AEAD cipher algorithm state
      - devcrypto_aead_cipher_op_init
        Initialize an AEAD cipher algorithm state
      - devcrypto_aead_cipher_ops_t
        AEAD cipher algorithm functions
      - devcrypto_aead_cipher_params_t
        AEAD cipher algorithm parameters
      - devcrypto_aead_cipher_t
        AEAD cipher algorithm object
      - devcrypto_algorithm_op_init
        Initialize an algorithm
      - devcrypto_algorithm_op_uninit
        Uninitialize an algorithm
      - devcrypto_algorithm_t
        Algorithm object
      - devcrypto_algorithm_type_t
        Algorithm types
      - devcrypto_cipher_op_decrypt
        Decrypt data using the specified cipher algorithm state
      - devcrypto_cipher_op_encrypt
        Encrypt data using the specified cipher algorithm state
      - devcrypto_cipher_op_init
        Initialize a cipher algorithm state
      - devcrypto_cipher_ops_t
        Cipher algorithm functions
      - devcrypto_cipher_params_t
        Cipher algorithm parameters
      - devcrypto_cipher_t
        Cipher algorithm object
      - devcrypto_digest_op_copy
        Copy a digest algorithm state
      - devcrypto_digest_op_final
        Finalize a digest algorithm state
      - devcrypto_digest_op_init
        Initialize a digest algorithm state
      - devcrypto_digest_op_update
        Update a digest algorithm state
      - devcrypto_digest_ops_t
        Digest algorithm functions
      - devcrypto_digest_params_t
        Digest algorithm parameters
      - devcrypto_digest_t
        Digest algorithm object
      - devcrypto_mac_op_final
        Finalize a MAC algorithm state
      - devcrypto_mac_op_init
        Initialize a MAC algorithm state
      - devcrypto_mac_op_update
        Update a MAC algorithm state
      - devcrypto_mac_ops_t
        MAC algorithm functions
      - devcrypto_mac_params_t
        MAC algorithm parameters
      - devcrypto_mac_t
        MAC algorithm object
      - devcrypto_plugin_op_init
        Initialize a plugin
      - devcrypto_plugin_op_uninit
        Uninitialize a plugin
      - devcrypto_plugin_ops_t
        Plugin global functions
      - devcrypto_plugin_register_algorithm()
        Register an algorithm
      - devcrypto_state_ctx_t
        Algorithm state context
    - Example devcrypto Plugin: openssl_digest.c
      This example illustrates how to implement a devcrypto plugin.
    - The devcrypto I/O Command API (cryptodev.h)
      The devcrypto API that provides I/O command structures.
  - Utilities Reference
  - WPA Control Interface Reference
    This document provides a reference for the Wi-Fi Protected Access (WPA) control interface, which provides a C API for the WPA/IEEE 802.11i protocols in Wi-Fi client stations. Application developers who want to control WPA operations and get associated status and event data should read this reference.
- Migrating to QNX OS 8.0
QNX Software in the Cloud
QNX Software in the Cloud enables developers to use the QNX OS in the Amazon cloud environment.
QNX Toolkit for Visual Studio Code
This User's Guide describes the QNX^® Toolkit for Visual Studio Code. The guide introduces you to the QNX Toolkit by explaining the QNX development environment and how to build, run, and debug your QNX^® Operating System (OS) applications and systems.
QNX Hypervisor User's Guide
This User's Guide explains the QNX hypervisor architecture and provides instructions for installing and running a QNX Hypervisor system, changing system components and configuration, and using hypervisor features such as virtual devices (vdevs).
Typographical Conventions, Support, and Licensing
This section describes the typographical conventions used throughout the documentation, explains how to obtain technical support, and provides some information about licensing.

devcrypto_digest_op_copy

QNX SDP8.0QNX devcrypto ServiceAPIDeveloperProgramming

Copy a digest algorithm state

Synopsis:

#include <dev/crypto/devcrypto_plugin.h>

typedef int(* devcrypto_digest_op_copy)(devcrypto_state_ctx_t *ssctx,
            devcrypto_state_ctx_t *dsctx);

Arguments:

ssctx: The source state context.
dsctx: The destination state context.

Library:

devcr

Returns:

EOK if successful or errno if an error occurred.

Page updated: August 11, 2025