feat(core/prodtest): implement tropic prodtest properly

Author: onvej-sl

core/embed/projects/prodtest/README.md

@@ -947,6 +947,135 @@ tropic-get-chip-id
 OK 00000001000000000000000000000000000000000000000000000000000000000000000001000000054400000000FFFFFFFFFFFF01F00F000544545354303103001300000B54524F50494330312D4553FFFFFFFF000100000000FFFF000100000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF13000300
 ```
 
+### tropic-certtropic-read
+
+Reads the X.509 certificate issued by Tropic Square for the Tropic chip.
+
+Example:
+```
+tropic-certtropic-read
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
+```
+
+### tropic-pair
+
+Pairs the MCU with the Tropic chip. This command is idempotent, meaning it can be called multiple times without changing the state of the device. This command is irreversible and cannot be undone. The command `secrets-init` must be executed before calling this command.
+
+Example:
+```
+tropic-pair
+OK
+```
+
+### tropic-get-access-credential
+
+Returns a cryptogram that encrypts and authenticates the Tropic pairing private key and authenticates the Tropic public key. The commands `secrets-init` and `secure-channel-handshake-2` must be executed before calling this command.
+
+Example:
+```
+tropic-get-access-credential
+OK 03ca0e9d74ef59fa80a06161f3d2fceeb3e0c5e2db8182526d337aac78bad2d2ce4cacf05cdcd879843bcc43ed330199
+```
+
+### tropic-get-fido-masking-key
+
+Returns a cryptogram that encrypts and authenticates the FIDO masking key for the Tropic chip. The commands `secrets-init` and `secure-channel-handshake-2` must be executed before calling this command.
+
+Example:
+```
+tropic-get-fido-masking-key
+OK dc106118a32feeef8d9211f54b9c8e9d571abe4cb104dc4ab087531cfee4574283ccf9c6f45e68be712f630d72d4999c
+```
+
+### tropic-handshake
+
+Establishes a secure channel with the Tropic chip. Expects handshake a request as input, returns a handshake response.
+
+```
+tropic-handshake 648724356a6bb22b258557927287af52133a27b7317d3c919db23395cae03d853422af
+OK 09ad6ec70806318313c903094ae8fb63698051210dfa540ea7c7f7e588601dac478eee30432063964574879dee93250d8a5049
+```
+
+### tropic-send-command
+
+Sends a command to the Tropic chip and returns the response. The command `tropic-handshake` must be executed before calling this command.
+
+Example:
+```
+tropic-send-command <hexadecimal string>
+OK <hexadecimal string>
+```
+
+### tropic-certdev-read
+
+Retrieves the X.509 certificate issued by the Trezor Company for the device.
+
+Example:
+```
+tropic-certdev-read
+OK <hexadecimal string>
+```
+
+### tropic-certdev-write
+
+Writes the X.509 certificate issued by the Trezor Company for the device.
+
+Example:
+```
+tropic-certdev-write <hexadecimal string>
+OK <hexadecimal string>
+```
+
+### tropic-certfido-read
+
+Retrieves the X.509 certificate issued by the Trezor Company for the FIDO attestation key.
+
+Example:
+```
+tropic-certfido-read
+OK <hexadecimal string>
+```
+
+### tropic-certfido-write
+
+Writes the X.509 certificate issued by the Trezor Company for the FIDO attestation key.
+
+Example:
+```
+tropic-certfido-write <hexadecimal string>
+OK <hexadecimal string>
+```
+
+### tropic-lock
+
+Configures the Tropic chip. This command is idempotent, meaning it can be called multiple times without changing the state of the device. This command is irreversible and cannot be undone. The command `tropic-pair` must be executed before calling this command.
+
+Example:
+```
+tropic-lock
+OK <hexadecimal string>
+```
+
+### secure-channel-handshake-1
+
+Returns the first handshake message for establishing a secure channel with the device.
+
+Example:
+```
+secure-channel-handshake-1
+OK 1e85285cbf805d0418be1f502a325806f68fa07c78fd63b7b960b2d0416f8b49
+```
+
+### secure-channel-handshake-2
+
+Establishes a secure channel with the device. Expects the second handshake message as input. The command `secure-channel-handshake-1` must be executed before calling this command.
+
+Example:
+```
+secure-channel-handshake-2 e08e84b91413ad8f7b07853c8ce4c1b5547a12d9dd65f30e3adaa1e2398e0359bd7ba0e9fb2c64130c25d56abb811f72
+OK
+```
+
 ### wpc-info
 Retrieves detailed information from the wireless power receiver, including chip identification, firmware version, configuration settings, and error status.
 
@@ -1087,6 +1216,3 @@ Example:
 rtc-get
 OK 2025 07 03 14 23 00 4
 ```
-
-
-

core/embed/projects/prodtest/cmd/common.c

@@ -51,6 +51,9 @@ static const uint8_t SUBJECT_COMMON_NAME[] = {
 #ifdef TREZOR_MODEL_T3T1
   'T', '3', 'T', '1', ' ', 'T', 'r', 'e', 'z', 'o', 'r', ' ', 'S', 'a', 'f', 'e', ' ', '5',
 #endif
+#ifdef TREZOR_MODEL_T3W1
+  'T', '3', 'W', '1', ' ', 'T', 'r', 'e', 'z', 'o', 'r', ' ', 'S', 'a', 'f', 'e', ' ', '7',
+#endif
 };
 // clang-format on
 

core/embed/projects/prodtest/cmd/prodtest_secrets.c

@@ -31,6 +31,7 @@
 #include "memzero.h"
 #include "rand.h"
 #include "secbool.h"
+#include "secure_channel.h"
 
 secbool generate_random_secret(uint8_t* secret, size_t length) {
   random_buffer(secret, length);
@@ -128,6 +129,71 @@ static void prodtest_secrets_init(cli_t* cli) {
   cli_ok(cli, "");
 }
 
+static void prodtest_secrets_get_mcu_device_key(cli_t* cli) {
+  if (cli_arg_count(cli) > 0) {
+    cli_error_arg_count(cli);
+    return;
+  }
+
+  curve25519_key mcu_private = {0};
+  if (secret_key_mcu_device_auth(mcu_private) != sectrue) {
+    cli_error(cli, CLI_ERROR, "`secret_key_mcu_device_auth()` failed.");
+    return;
+  }
+  curve25519_key mcu_public = {0};
+  curve25519_scalarmult_basepoint(mcu_public, mcu_private);
+
+  uint8_t output[sizeof(curve25519_key) + NOISE_TAG_SIZE] = {0};
+  if (!secure_channel_encrypt(NULL, 0, mcu_public, sizeof(curve25519_key),
+                              output + NOISE_TAG_SIZE)) {
+    // `secure_channel_handshake_2()` might not have been called
+    cli_error(cli, CLI_ERROR, "`secure_channel_encrypt()` failed.");
+    goto cleanup;
+  }
+
+  cli_ok_hexdata(cli, output, sizeof(output));
+
+cleanup:
+  memzero(mcu_private, sizeof(mcu_private));
+}
+
+static void prodtest_secrets_certdev_write(cli_t* cli) {
+  if (cli_arg_count(cli) > 0) {
+    cli_error_arg_count(cli);
+    return;
+  }
+
+  size_t certificate_length = 0;
+  uint8_t certificate[512] = {0};
+  if (!cli_arg_hex(cli, "hex-data", certificate, sizeof(certificate),
+                   &certificate_length)) {
+    if (certificate_length == sizeof(certificate)) {
+      cli_error(cli, CLI_ERROR, "Certificate too long.");
+    } else {
+      cli_error(cli, CLI_ERROR, "Hexadecimal decoding error.");
+    }
+    return;
+  }
+
+  // TODO: Write the certificate to the flash.
+
+  cli_ok(cli, "");
+}
+
+static void prodtest_secrets_certdev_read(cli_t* cli) {
+  if (cli_arg_count(cli) > 0) {
+    cli_error_arg_count(cli);
+    return;
+  }
+
+  uint8_t certificate[512] = {0};
+  size_t certificate_length = 0;
+
+  // TODO: Read the certificate from the flash.
+
+  cli_ok_hexdata(cli, certificate, certificate_length);
+}
+
 // clang-format off
 
 PRODTEST_CLI_CMD(
@@ -136,3 +202,24 @@ PRODTEST_CLI_CMD(
   .info = "Generate and write secrets to flash",
   .args = ""
 );
+
+PRODTEST_CLI_CMD(
+  .name = "secrets-get-mcu-device_key",
+  .func = prodtest_secrets_get_mcu_device_key,
+  .info = "Get MCU device key",
+  .args = ""
+);
+
+PRODTEST_CLI_CMD(
+  .name = "secrets-certdev-write",
+  .func = prodtest_secrets_certdev_write,
+  .info = "Write the device's X.509 certificate to flash",
+  .args = "<hex-data>"
+);
+
+PRODTEST_CLI_CMD(
+  .name = "secrets-certdev-read",
+  .func = prodtest_secrets_certdev_read,
+  .info = "Read the device's X.509 certificate from flash",
+  .args = ""
+);

core/embed/projects/prodtest/cmd/prodtest_secure_channel.c

@@ -59,9 +59,9 @@ static void prodtest_secure_channel_handshake_2(cli_t* cli) {
   }
 
   if (!secure_channel_handshake_2(input)) {
-    // TODO: Consider distinguishing between cryptography error and state error
-    cli_error(cli, CLI_ERROR,
-              "You have to call `secure-channel-handshake-1` first.");
+    // Either `secure_channel_handshake_1()` has not been called or the keys do
+    // not match.
+    cli_error(cli, CLI_ERROR, "`secure_channel_handshake_2()` failed.");
   }
 
   cli_ok(cli, "");