Crypto: SHA-256
The SHA-256 sample shows how to calculate and verify hashes.
Requirements
The sample supports the following development kits:
Hardware platforms |
PCA |
Board name |
Build target |
|---|---|---|---|
PCA10090 |
|
||
PCA10095 |
|
||
PCA10056 |
|
||
PCA10100 |
|
When built for an _ns build target, the sample is configured to compile and run as a non-secure application.
Therefore, it automatically includes Trusted Firmware-M that prepares the required peripherals and secure services to be available for the application.
Overview
The sample performs the following operations:
Initialization of the Platform Security Architecture (PSA) API.
Calculation and verification of a SHA-256 hash on a sample plaintext:
The SHA-256 hash is calculated.
The SHA-256 hash is verified.
Building and running
This sample can be found under samples/crypto/sha256 in the nRF Connect SDK folder structure.
When built as a non-secure firmware image for the _ns build target, the sample automatically includes the Trusted Firmware-M (TF-M).
To build the sample with Visual Studio Code, follow the steps listed on the Building nRF Connect SDK application quick guide page in the nRF Connect for VS Code extension documentation. See Building and programming an application for other building and programming scenarios and Testing and debugging an application for general information about testing and debugging in the nRF Connect SDK.
Testing
After programming the sample to your development kit, complete the following steps to test it:
Connect to the kit with a terminal emulator (for example, PuTTY). See How to connect with PuTTY for the required settings.
Compile and program the application.
Observe the logs from the application using an RTT Viewer or a terminal emulator.
Note
By default, the sample is configured to use both RTT and UART for logging. If you are using RTT, skip the first step of the testing procedure.