Added EEPROM storage

platformio.ini

@@ -19,10 +19,10 @@ monitor_speed = 74880
 ; use faster upload speed
 upload_speed = 921600
 
-[env:huzzah_config]
+;[env:huzzah_config]
 ; everything except crypto example (= this is the config exmaple)
-build_src_filter = +<*> -<AES_crypto_example.cpp> 
+;build_src_filter = +<*> -<AES_crypto_example.cpp> 
 
-;[env:huzzah_aes]
+[env:huzzah_aes]
 ; everything except main.cpp (= this is the AES exmaple)
-;build_src_filter = +<*> -<main.cpp>
+build_src_filter = +<*> -<main.cpp>

src/AES_crypto_example.cpp

@@ -4,7 +4,7 @@ extern "C"
     #include "cryptoauthlib.h"
 }
 #include "aes_cbc.h"
-
+#include <EEPROM.h>
 // Key Slot number
 uint8_t KEY_SLOT = (uint8_t)9;
 
@@ -14,11 +14,10 @@ ATCA_STATUS status;
 void setup()
 {
     Serial.begin(74880);
-
     // Init the constuctor for the library
     cfg.iface_type = ATCA_I2C_IFACE;  // Type of communication -> I2C mode
     cfg.devtype = ATECC608A;          // Type of chip
-    cfg.atcai2c.slave_address = 0X60; // I2C address of the Adafruit Breakout Board
+    cfg.atcai2c.slave_address = 0X30; // I2C address of the Adafruit Breakout Board
     cfg.atcai2c.bus = 1;
     cfg.atcai2c.baud = 100000;
     cfg.wake_delay = 1500; // Delay of wake up (1500 ms)
@@ -34,18 +33,23 @@ void loop()
         Serial.println(F("atcab_init() failed : Code -> 0x"));
         Serial.println(status, HEX);
     }
-
-    uint8_t plaintext[16] = "AAAAAAAAAAAAAAA";
-
+    uint addr = 0; //Address for EEPROM
+    uint8_t plaintext[32] = "EB4655C2-372F-4133-82B9-AC3DECA";
     uint8_t iv[IV_LENGTH_CBC];
     uint8_t cypherdata[sizeof(plaintext)];
     uint8_t decryptdata[sizeof(plaintext)];
-
     Serial.println("Beginning of the encryption !");
     status = aes_cbc_encrypt(&cfg, plaintext, sizeof(plaintext), iv, cypherdata, KEY_SLOT);
     if (status == ATCA_SUCCESS)
     {
-        status = aes_cbc_decrypt(&cfg, cypherdata, sizeof(cypherdata), iv, decryptdata, KEY_SLOT);
+        Serial.println("encrypted");
+        EEPROM.begin(512);// commit 512 bytes of ESP8266 flash (for "EEPROM" emulation)
+        EEPROM.put(addr,cypherdata);
+        EEPROM.commit();  
+        Serial.println("Beginning of the decryption !");
+        uint8_t FP_cypherdata[sizeof(plaintext)];//Calling it something else to make sure we are in fact pulling it from EEPROM
+        EEPROM.get(addr,FP_cypherdata);
+        status = aes_cbc_decrypt(&cfg, FP_cypherdata, sizeof(FP_cypherdata), iv, decryptdata, KEY_SLOT);
         if (status == ATCA_SUCCESS)
         {
             Serial.print("Decrypted text is : ");
@@ -57,7 +61,7 @@ void loop()
         }
         else
         {
-            // See file atca_status.h for the code Error
+        // See file atca_status.h for the code Error
             Serial.print(F("Impossible do the decryption | Code Error 0x"));
             Serial.println(status, HEX);
             return;
@@ -70,4 +74,5 @@ void loop()
         Serial.println(status, HEX);
         return;
     }
+    delay(1000);
 }