Update TROPIC01 integration guide and header file for key slot definitions and datasheet link

Author: kosmax871

wolfcrypt/src/port/tropicsquare/README.md

@@ -23,7 +23,7 @@ Integration guide for using Tropic Square's TROPIC01 secure element with wolfSSL
 ## TROPIC01 Secure Element with an open architecture
 
 The TROPIC01 secure element is built with tamper-proof technology and advanced attack countermeasures to ensure robust asset protection, securing electronic devices against a wide range of potential attacks. It securely supplies and stores the cryptographic keys of embedded solutions.
-The TROPIC01 datasheet is available via [this link](https://www.nxp.com/docs/en/application-note/AN12570.pdf)
+The TROPIC01 datasheet is available via [this link](https://github.com/tropicsquare/tropic01/blob/main/doc/datasheet/ODD_tropic01_datasheet_revA6.pdf)
 
 ## Hardware Overview
 
@@ -71,15 +71,16 @@ Also, for Raspberry PI, there are a few more steps:
 2.  Install wiringPI:
 
 ```sh
-$ sudo apt update
-$ sudo apt install wiringpi
+$ wget https://github.com/WiringPi/WiringPi/releases/download/3.14/wiringpi_3.14_arm64.deb
+$ sudo apt install ./wiringpi_3.14_arm64.deb
 ```
 
 ### Keys installation
 
 For the integration with wolfSSL, there are a few pre-defined slots for the secure keys storage (the slots mapping might be changed in tropic01.h):
 ```sh
-TROPIC01_AES_RMEM_SLOT_DEFAULT 1 // slot in R-memory for AES key
+TROPIC01_AES_KEY_RMEM_SLOT 0 // slot in R-memory for AES key
+TROPIC01_AES_IV_RMEM_SLOT 1 // slot in R-memory for AES IV
 TROPIC01_ED25519_PUB_RMEM_SLOT_DEFAULT 2 // slot in R-memory for ED25519 Public key
 TROPIC01_ED25519_PRIV_RMEM_SLOT_DEFAULT 3 //slot in R-memory for ED25519 Private key
 TROPIC01_ED25519_ECC_SLOT_DEFAULT 1 // slot in ECC keys storage for both public and private keys

wolfssl/wolfcrypt/port/tropicsquare/tropic01.h

@@ -50,23 +50,34 @@
 
 
 #define TROPIC01_AES_MAX_KEY_SIZE 32
+#define TROPIC01_PAIRING_KEY_SIZE 32
+#define TROPIC01_ED25519_PRIV_KEY_SIZE 32
+#define TROPIC01_ED25519_PUB_KEY_SIZE 32
 
 /* R-Memory slots allocation */
+#ifndef TROPIC01_AES_KEY_RMEM_SLOT
 #define TROPIC01_AES_KEY_RMEM_SLOT 0
+#endif /* TROPIC01_AES_KEY_RMEM_SLOT */
+
+#ifndef TROPIC01_AES_IV_RMEM_SLOT
 #define TROPIC01_AES_IV_RMEM_SLOT 1
-#define TROPIC01_ED25519_PUB_RMEM_SLOT_DEFAULT 2
-#define TROPIC01_ED25519_PRIV_RMEM_SLOT_DEFAULT 3
+#endif /* TROPIC01_AES_IV_RMEM_SLOT */
 
+#ifndef TROPIC01_ED25519_PUB_RMEM_SLOT_DEFAULT
+#define TROPIC01_ED25519_PUB_RMEM_SLOT_DEFAULT 2
+#endif /* TROPIC01_ED25519_PUB_RMEM_SLOT_DEFAULT */
 
-#define TROPIC01_ED25519_PRIV_KEY_SIZE 32
-#define TROPIC01_ED25519_PUB_KEY_SIZE 32
+#ifndef TROPIC01_ED25519_PRIV_RMEM_SLOT_DEFAULT
+#define TROPIC01_ED25519_PRIV_RMEM_SLOT_DEFAULT 3
+#endif /* TROPIC01_ED25519_PRIV_RMEM_SLOT_DEFAULT */
 
+#ifndef TROPIC01_ED25519_ECC_SLOT_DEFAULT
 #define TROPIC01_ED25519_ECC_SLOT_DEFAULT 1
+#endif /* TROPIC01_ED25519_ECC_SLOT_DEFAULT */
 
+#ifndef PAIRING_KEY_SLOT_INDEX_0
 #define PAIRING_KEY_SLOT_INDEX_0 0
-#define TROPIC01_PAIRING_KEY_SIZE 32
-
-
+#endif /* PAIRING_KEY_SLOT_INDEX_0 */
 
 typedef struct {
     int keySlot;       /* Slot ID in TROPIC01 secure memory */
@@ -78,7 +89,6 @@ typedef struct {
 /* Context for TROPIC01 secure element */
 typedef struct {
     int initialized;
-    byte keySlotUsage[8];
 } Tropic01CryptoDevCtx;