From 31611dc9dc69fc5b46df45139d57fa350e74508f Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Thu, 13 Feb 2025 00:36:54 +0100
Subject: [PATCH 1/4] Remove redundant define

---
 main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/main.c b/main.c
index ad65852..5403cad 100644
--- a/main.c
+++ b/main.c
@@ -5,7 +5,6 @@
 #include <stdio.h>
 
 #define LED_PIN PD6
-#define RSA_16
 
 void exit_blink() {
     for (int i = 0; i < 4; i++) {

From e6e63f2d32b7d44e81f79ce1d6f5844660fbb3af Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Thu, 13 Feb 2025 00:37:32 +0100
Subject: [PATCH 2/4] Seed PRNG at the top of main. Remove redundant printf

---
 main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/main.c b/main.c
index 5403cad..56357b3 100644
--- a/main.c
+++ b/main.c
@@ -26,8 +26,7 @@ void enter_blink() {
 
 int main() {
     SystemInit();
-
-    printf("Entering...\n");
+    sprand(0);
 
     funGpioInitAll();
     funPinMode(LED_PIN, GPIO_Speed_10MHz | GPIO_CNF_OUT_PP);

From 563778716c611570165400778dd9bfeb3d7bcb35 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Thu, 13 Feb 2025 00:38:24 +0100
Subject: [PATCH 3/4] Defalt initialize q to p, e to 0. The following loop will
 properly assign them.

---
 main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/main.c b/main.c
index 56357b3..205e45c 100644
--- a/main.c
+++ b/main.c
@@ -34,7 +34,7 @@ int main() {
     enter_blink();
 
     uint64_t p = gen_prime(1 << 15, 1 << 16);
-    uint64_t q = gen_prime(1 << 15, 1 << 16);
+    uint64_t q = p;
 
     while (p == q) p = gen_prime(1 << 15, 1 << 16);
 
@@ -42,7 +42,7 @@ int main() {
     uint64_t phi_n = (p - 1) * (q - 1);
 
     // 'e' is public. E for encrypt.
-    uint64_t e = prand_range(3, phi_n - 1);
+    uint64_t e = 0;
     while (gcd(e, phi_n) != 1) e = prand_range(3, phi_n - 1);
 
     // 'd' is our private key. D as in decrypt

From 6b64e0c18b02c3caf72313cdac979694b3fcd865 Mon Sep 17 00:00:00 2001
From: Imbus <>
Date: Thu, 13 Feb 2025 01:16:52 +0100
Subject: [PATCH 4/4] Hardcode broken parameters for now

---
 main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/main.c b/main.c
index 205e45c..29770df 100644
--- a/main.c
+++ b/main.c
@@ -33,10 +33,15 @@ int main() {
 
     enter_blink();
 
+#ifdef RANDOM
     uint64_t p = gen_prime(1 << 15, 1 << 16);
     uint64_t q = p;
 
     while (p == q) p = gen_prime(1 << 15, 1 << 16);
+#else
+    uint64_t p = 56857;
+    uint64_t q = 47963;
+#endif
 
     uint64_t n = p * q;
     uint64_t phi_n = (p - 1) * (q - 1);