工程创建参考：
/ c0 e# H, E. Rhttps://shequ.stmicroelectronics ... p;extra=#pid2657071
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( t: g- ]4 i  ^1 m% ]4 \( V生成代码

" V) e1 D, l# S' ?8 G3 S6 S2 L) K定义几个字符串，数组等，模拟文件数据

+ q; d) C  C1 O( }6 |. X6 |$ Q    /* USER CODE BEGIN PV */
+ S, `- v2 c4 p+ s( |& F4 P9 ~+ C" e    char *SourceFile = "STMicroelectronics Community";
    char EncryptFile[128] = {0};
, m0 O3 A$ K- f  M; u0 a' t) j' V    char DecryptFile[128] = {0};
$ a# t9 J6 L2 J: k    /* USER CODE END PV */

main.c中添加程序
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    /* USER CODE BEGIN BSP */

0 m  f) |% M& q0 y2 }8 R    /* -- Sample board code to send message over COM1 port ---- */
$ |4 ?: I! _- R" z" l! F; D    printf("Welcome to STM32 world !\n\r");

& U  e; X2 e* O; e9 P5 ?    /* -- Sample board code to switch on leds ---- */
% L! j. O6 ~- K8 ^6 m+ r0 z, Y: T    BSP_LED_On(LED_GREEN);

& c2 o  A8 }6 D% H3 z6 w# l: `    printf("The source file is: %s !\n\r", SourceFile);
% I+ O6 d0 H# j5 n    HAL_CRYP_Encrypt(&hcryp, SourceFile, strlen(SourceFile), EncryptFile, 1000);
    printf("The encrypted file is: %s !\n\r", EncryptFile);

, U) q. [! B4 c! q3 j7 N6 ]    HAL_CRYP_Decrypt(&hcryp, EncryptFile, strlen(SourceFile), DecryptFile, 1000);
    printf("The Decrypted file is: %s !\n\r", DecryptFile);
    /* USER CODE END BSP */
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% X+ v7 H% g* y- P编译运行，看效果
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7 r! M# z  N+ ?8 }) n; M4 f反正加密后的我是看不懂，哈哈哈哈

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