Hello Freedom

2022-02-01 23:45:47 +07:00
commit 7009cb27c4
964 changed files with 513364 additions and 0 deletions
--- a/legacy-code/deb2/ntru_nino/EES401/URG_decrypt.c
+++ b/legacy-code/deb2/ntru_nino/EES401/URG_decrypt.c
@@ -0,0 +1,77 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+#include "ntru_crypto.h"
+
+uint32_t get_rand(uint8_t *out, uint32_t num_bytes)
+{
+	int rng = 50;
+	int urnd = open("/dev/random", O_RDONLY);
+	read(urnd, &rng, sizeof(int));
+	*out = urnd;
+	close(urnd);
+	return 0;
+}
+
+char * main(char *user_input)
+{
+    	uint8_t public_key[557];          /* sized for EES401EP2 */
+    	uint16_t public_key_len;          /* no. of octets in public key */
+    	uint8_t private_key[607];         /* sized for EES401EP2 */
+    	uint16_t private_key_len;         /* no. of octets in private key */
+    	uint16_t expected_private_key_len;
+    	uint16_t expected_encoded_public_key_len;
+    	uint8_t encoded_public_key[593];  /* sized for EES401EP2 */
+    	uint16_t encoded_public_key_len;  /* no. of octets in encoded public key */
+    	uint8_t ciphertext[552];          /* sized fof EES401EP2 */
+    	uint16_t ciphertext_len;          /* no. of octets in ciphertext */
+    	uint8_t plaintext[16];            /* size of AES-128 key */
+    	uint16_t plaintext_len;           /* no. of octets in plaintext */
+    	uint8_t *next = NULL;             /* points to next cert field to parse */
+    	uint32_t next_len;                /* no. of octets it next */
+    	DRBG_HANDLE drbg;                 /* handle for instantiated DRBG */
+    	uint32_t rc;                      /* return code */
+    	bool error = FALSE;               /* records if error occurred */
+    	FILE *Handle=NULL;                /* File Handle for writing NTRU key to file */
+	    char *filename[33];
+	    char **ptr = filename;
+	    char buffer[607];
+	    char *buffer2 = 0;
+	    char *c = malloc(16);
+	    int r;
+            int s;
+	    double cpu_time_used;
+        rc = ntru_crypto_drbg_uninstantiate(drbg);
+	    FILE *f = fopen("EES401/EES401-ntru-priv.raw", "rb");
+	    r = fread(buffer, 1, 607, f);
+	    fclose(f);
+            
+	    printf("C Log DEC: %d bytes Private Key\n", r);
+            printf("C Log DEC: user_input Len %d\n", sizeof(user_input));
+
+	    rc = ntru_crypto_ntru_decrypt(r, buffer, 552,user_input,  &plaintext_len,  NULL);
+
+	    if (rc != NTRU_OK)
+                printf("ERROR 1\n");
+
+	    rc = ntru_crypto_ntru_decrypt(r, buffer, 552,user_input,  &plaintext_len,  plaintext);
+
+	    if (rc != NTRU_OK)
+                printf("ERROR 2\n");
+
+	    printf("C Log DEC : your plain: %s\n", plaintext);
+	    printf("C Log DEC : your plain LEN: %d\n", plaintext_len);
+	    //printf("your time spent: %lf\n", cpu_time_used);
+            //snprintf(c, sizeof(c), "%s", plaintext);
+            strcpy(c, plaintext);
+	    return c;
+
+        error: 
+    	    printf("PROBLEM BUDDY %d\n", rc);
+            exit(EXIT_FAILURE);
+    	    return 0;
+}
+