Initial data commit

Task/Parallel-brute-force/C/parallel-brute-force.c

@@ -0,0 +1,71 @@
+// $ gcc -o parabrutfor parabrutfor.c -fopenmp -lssl -lcrypto
+// $ export OMP_NUM_THREADS=4
+// $ ./parabrutfor
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <omp.h>
+#include <openssl/sha.h>
+
+typedef unsigned char byte;
+
+int matches(byte *a, byte* b) {
+	for (int i = 0; i < 32; i++)
+		if (a[i] != b[i])
+			return 0;
+	return 1;
+}
+
+
+byte* StringHashToByteArray(const char* s) {
+	byte* hash = (byte*) malloc(32);
+	char two[3];
+	two[2] = 0;
+	for (int i = 0; i < 32; i++) {
+		two[0] = s[i * 2];
+		two[1] = s[i * 2 + 1];
+		hash[i] = (byte)strtol(two, 0, 16);
+	}
+	return hash;
+}
+
+void printResult(byte* password, byte* hash) {
+	char sPass[6];
+	memcpy(sPass, password, 5);
+	sPass[5] = 0;
+	printf("%s => ", sPass);
+	for (int i = 0; i < SHA256_DIGEST_LENGTH; i++)
+		printf("%02x", hash[i]);
+	printf("\n");
+}
+
+int main(int argc, char **argv)
+{
+
+#pragma omp parallel
+	{
+
+#pragma omp for
+		for (int a = 0; a < 26; a++)
+		{
+			byte password[5] = { 97 + a };
+			byte* one =   StringHashToByteArray("1115dd800feaacefdf481f1f9070374a2a81e27880f187396db67958b207cbad");
+			byte* two =   StringHashToByteArray("3a7bd3e2360a3d29eea436fcfb7e44c735d117c42d1c1835420b6b9942dd4f1b");
+			byte* three = StringHashToByteArray("74e1bb62f8dabb8125a58852b63bdf6eaef667cb56ac7f7cdba6d7305c50a22f");
+			for (password[1] = 97; password[1] < 123; password[1]++)
+				for (password[2] = 97; password[2] < 123; password[2]++)
+					for (password[3] = 97; password[3] < 123; password[3]++)
+						for (password[4] = 97; password[4] < 123; password[4]++) {
+							byte *hash = SHA256(password, 5, 0);
+							if (matches(one, hash) || matches(two, hash) || matches(three, hash))
+								printResult(password, hash);
+						}
+			free(one);
+			free(two);
+			free(three);
+		}
+	}
+
+	return 0;
+}