# SHA256算法

## 概述

**sha256_example**示例工程展示了SHA256算法的实现。
- 此工程的解密算法采用NIST SHA256法完成模块加解密测试。

## 硬件设置

- 无特殊设置

## 运行现象

当工程正确运行后，串口终端会输出如下信息：
```console
tc_start() - Performing SHA256 tests (NIST tests vectors):
SHA256 test #1:
===================================================================
PASS - test_1.
SHA256 test #2:
===================================================================
PASS - test_2.
SHA256 test #3:
===================================================================
PASS - test_3.
SHA256 test #4:
===================================================================
PASS - test_4.
SHA256 test #5:
===================================================================
PASS - test_5.
SHA256 test #6:
===================================================================
PASS - test_6.
SHA256 test #7:
===================================================================
PASS - test_7.
SHA256 test #8:
===================================================================
PASS - test_8.
SHA256 test #9:
===================================================================
PASS - test_9.
SHA256 test #10:
===================================================================
PASS - test_10.
SHA256 test #11:
===================================================================
PASS - test_11.
SHA256 test #12:
===================================================================
PASS - test_12.
SHA256 test #13:
SHA256 test #14:
===================================================================
PASS - test_14.
All SHA256 tests succeeded!
===================================================================
PASS - main.
===================================================================
PROJECT EXECUTION SUCCESSFUL
```

````{note}
test_14需要花费数分钟时间运行，请耐心等待
````