try to expose transcoding key codes to ascii into kc_to_ascii

README.md

@@ -32,7 +32,8 @@ include keyboards/<keyboard>/<path to your keymap folder>/red_crypto/red_crypto.
 
 5. Encrypt your passwords with chosen algorithm (AES, Kuznechik). Now available only Kuznechik. You can use `CyberChef`. Don't use web version! We are here for security, right? Choose `GOST Cipher`, then choose type `Kuznechik 34.12-2014`, not Magma. Choose mode ECB. Now, there is no CBC or CTR. 
 
-> Don't forget IV for GOST, get it from kuznechik_8bit.c.
+> Don't forget IV for GOST
+> ```94208510C2C001FB01C0C21085209401```
 
 6. Add your encrypted passwords in "keymap.c". Now you can encrypt 2 passwords with length <=16 byte. Keep this information in secret. Even if there are no plaintext. 
 

kc_to_ascii.c

@@ -1,13 +1,34 @@
+// Author: redlineo, romanov.pd@gmail.com
+
 #include "kc_to_ascii.h"
 
-void crypto_process_record_user(uint16_t keycode, keyrecord_t *record, uint8_t readed_key) {
+uint8_t shift_tracker  = 0;
-        switch (keycode) {
+
-            case KC_1:
+uint8_t kc_to_ascii(uint16_t keycode, keyrecord_t *record, uint8_t readed_key[]) {
-                if (record->event.pressed) {
+    switch (keycode) {
+        case KC_LEFT_SHIFT:
+            if (record->event.pressed) {
+                register_code(KC_LEFT_SHIFT);
+                shift_tracker = 1;
+            }
+            return 1;
+            break;
+        case KC_1:
+            if (record->event.pressed) {
+                if (shift_tracker == 1) {
+                    unregister_code(KC_LEFT_SHIFT);
+                    shift_tracker              = 0;
+                    readed_key[count_char_key] = ASCII_UP_1;
+                } else {
                     readed_key[count_char_key] = ASCII_LOW_1;
-                    count_char_key++;
                 }
-                break;
+                dprintf("%d",readed_key[count_char_key]);
-            default:
+                count_char_key++;
-                break;
+            }
+            return 1;
+            break;
+        default:
+            break;
+    }
+    return 0;
 }

kc_to_ascii.h

@@ -1,8 +1,16 @@
+// Author: redlineo, romanov.pd@gmail.com
+
+#include QMK_KEYBOARD_H
+#include "quantum.h"
+
 #ifndef KC_TO_ASCII_H
 #define KC_TO_ASCII_H
 
+uint8_t kc_to_ascii(uint16_t keycode, keyrecord_t *record, uint8_t readed_key[32]);
+
 /****************************** ASCII TABLE ******************************/
 
+// clang-format off
 #define ASCII_NON_PRINTABLE 0x00        //
 #define ASCII_SOH           0x01        //
 #define ASCII_STX           0x02        //

red_crypto.c

@@ -1,7 +1,7 @@
+// Author: redlineo, romanov.pd@gmail.com
+
 #include "red_crypto.h"
 
-
-
 uint8_t dec_pass[2][16] = {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}};
 
 uint8_t readed_key[32] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
@@ -46,6 +46,11 @@ void decrypt_pass_kuzn(const uint8_t encrypted_passwords[2][16]) {
         }
     }
 
+};
+
+// TODO: add encrypt new passwords with binding on new keys
+// and storing all these to EEPROM
+// void encrypt_pass_kuzn(){
     // kuz_set_encrypt_key(&key,readed_key);
     // for (uint8_t i=0; i<16; i++) {
     //     x.b[i] = pass[i];
@@ -53,7 +58,7 @@ void decrypt_pass_kuzn(const uint8_t encrypted_passwords[2][16]) {
     // kuz_encrypt_block(&key,&x);
     // printf("encrypted\t="); print_w128(&x);
     // print_chars_w128(&x);
-};
+// }
 
 void send_chars_pass(uint8_t *out) {
     for (uint8_t i = 0; i < 16 && out[i] != 0; i++) {
@@ -61,26 +66,24 @@ void send_chars_pass(uint8_t *out) {
     }
 };
 
-void crypto_process_record_user(uint16_t keycode, keyrecord_t *record, const uint8_t encrypted_passwords[2][16]) {
+uint8_t crypto_process_record_user(uint16_t keycode, keyrecord_t *record, const uint8_t encrypted_passwords[2][16]) {
     if (crypto_mode) {
         switch (keycode) {
-            // TODO: write all ASCII printable keys
-            // may be not printable, because we can use any byte of ASCII with QMK, HA-HA
-            // transcode_keycode_to_ascii();
             // case KC_1:
             //     if (record->event.pressed) {
             //         readed_key[count_char_key] = ASCII_LOW_1;
             //         count_char_key++;
             //     }
+            //     return 1;
             //     break;
-            case GET_PASS:
+            case RED_CRY_M:
                 if (record->event.pressed) {
                     crypto_mode    = 0;
                     count_char_key = 0;
                     decrypt_pass_kuzn(encrypted_passwords);
                 }
             default:
-                kc_to_ascii(keycode, record, &readed_key);
+                return kc_to_ascii(keycode, record, readed_key, count_char_key);
                 break;
         }
     } else {
@@ -88,41 +91,40 @@ void crypto_process_record_user(uint16_t keycode, keyrecord_t *record, const uin
             case RED_PASS1:
                 if (record->event.pressed) {
                     send_chars_pass(dec_pass[0]);
-                    // SEND_STRING(dec_pass[0]);
                 }
                 break;
             case RED_PASS2:
                 if (record->event.pressed) {
                     send_chars_pass(dec_pass[1]);
-                    // SEND_STRING(dec_pass[1]);
                 }
                 break;
             case RED_RNG:
                 if (record->event.pressed) {
-                    //TODO: change seed
+                    // TODO: change seed
-                    for (uint8_t i = 0; i < 32; i++){
+                    for (uint8_t i = 0; i < 32; i++) {
                         tap_random_base64();
                     }
                 }
                 break;
             case RED_TEST:
-                #ifdef TEST_FUNCTIONS_ENABLED
+#ifdef TEST_FUNCTIONS_ENABLED
                 if (record->event.pressed) {
                     exec_sha256_test();
                     exec_kuznechik_test();
                     exec_aes_test();
                 }
-                #endif
+#endif
                 break;
-            case GET_PASS:
+            case RED_CRY_M:
                 if (record->event.pressed) {
                     crypto_mode = 1;
                     for (uint8_t i = 0; i < 32; i++) {
                         readed_key[i] = 0;
                     }
-                    dprintf("%d", keycode);
+                    // dprintf("%d", keycode);
                 }
                 break;
         }
     }
+    return 0;
 }

red_crypto.h

@@ -1,4 +1,4 @@
-
+// Author: redlineo, romanov.pd@gmail.com
 
 #include QMK_KEYBOARD_H
 #include "quantum.h"
@@ -7,7 +7,7 @@
 #ifndef RED_CRYPTO_H
 #define RED_CRYPTO_H
 
-#include "ascii_table.c"
+#include "kc_to_ascii.h"
 
 // #ifdef USE_RED_KUZNECHIK_128
 // #include "kuznechik_128bit.h"
@@ -26,14 +26,14 @@
 
 
 enum red_crypto_keys {
-    GET_PASS = SAFE_RANGE,
+    RED_CRY_M = SAFE_RANGE+0x80,     // added safe range offset
     RED_PASS1,
     RED_PASS2,
     RED_RNG,
     RED_TEST
 };
 
-void crypto_process_record_user(uint16_t keycode, keyrecord_t *record, const uint8_t encrypted_passwords[2][16]);
+uint8_t crypto_process_record_user(uint16_t keycode, keyrecord_t *record, const uint8_t encrypted_passwords[2][16]);
 
 
 #endif

red_crypto.mk

@@ -4,7 +4,7 @@ SRC += red_crypto/red_crypto.c
 SRC += red_crypto/sha256.c
 SRC += red_crypto/aes.c
 SRC += red_crypto/kuznechik_8bit.c
-SRC += red_crypto/ascii_table.c
+SRC += red_crypto/kc_to_ascii.c
 
 # SRC += red_crypto/kuznechik_128bit.c # you can't include this, because you may not have ARMv8 and upper, check this
 # TODO: do something like this: