工程创建参考：
2 R$ d1 B6 @5 p7 Mhttps://shequ.stmicroelectronics ... p;extra=#pid2657071





生成代码

! |+ z! v/ m" f, j( b. C定义几个字符串，数组等，模拟文件数据
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    /* USER CODE BEGIN PV */
$ n* d2 o) p0 Z5 O2 p) |0 o8 W    char *SourceFile = "STMicroelectronics Community";
    char EncryptFile[128] = {0};
: s1 N3 d+ |7 H" I, H( S7 T9 t# {    char DecryptFile[128] = {0};
    /* USER CODE END PV */

4 o  f0 J2 `3 F. Y+ h* Ymain.c中添加程序
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0 ?( [# U6 @/ g2 A    /* USER CODE BEGIN BSP */

; W, ~- r( l6 y0 }% Z3 h) ~    /* -- Sample board code to send message over COM1 port ---- */
    printf("Welcome to STM32 world !\n\r");
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) z" L" Z" T7 @4 c; P3 R& L    /* -- Sample board code to switch on leds ---- */
    BSP_LED_On(LED_GREEN);
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0 W% V6 ?! q, ]5 c7 I6 Q    printf("The source file is: %s !\n\r", SourceFile);
    HAL_CRYP_Encrypt(&hcryp, SourceFile, strlen(SourceFile), EncryptFile, 1000);
    printf("The encrypted file is: %s !\n\r", EncryptFile);

    HAL_CRYP_Decrypt(&hcryp, EncryptFile, strlen(SourceFile), DecryptFile, 1000);
+ ~- G) {9 p9 y# C# U  Z  U5 [    printf("The Decrypted file is: %s !\n\r", DecryptFile);
, ^% v1 D" Q* k3 z  X    /* USER CODE END BSP */
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编译运行，看效果
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* Y- b1 P0 F4 [/ G. `$ W反正加密后的我是看不懂，哈哈哈哈