From: Harishankar <v.harishankar@gmail.com>
Date: Sun, 10 May 2020 10:16:45 +0000 (+0530)
Subject: Changed the encoding function to use the OpenSSL EVP_EncodeBlock
X-Git-Tag: 0.1a~6
X-Git-Url: https://harishankar.org/repos/?a=commitdiff_plain;h=90048188dd2b930733606983377560e5a07c4884;p=wordblah.git

Changed the encoding function to use the OpenSSL EVP_EncodeBlock
Changed the encoding hash to use the OpenSSL function instead
of the generic version
---

diff --git a/wordblah.h b/wordblah.h
index 328148d..372ca60 100644
--- a/wordblah.h
+++ b/wordblah.h
@@ -103,21 +103,13 @@ err:
 	exit (2);
 }
 
-/* convert the hashed binary password to hexadecimal representation and
-   free the hashed binary password */
-void to_hexadecimal (char *hex, unsigned char *binary_pwd, unsigned int len)
+/* encode the binary data to readable text format using OpenSSL */
+void encode_binary (char *encoded, unsigned char *binary_data, unsigned int len)
 {
-	char buf[3];
-	/* keep reference to beginning of the hashed password */
-	unsigned char *binary_pw_begin = binary_pwd;
-	for (int i = 0; i < len; i ++)
-	{
-		sprintf (buf, "%02x", (*binary_pwd)&0xff);
-		strcat (hex, buf);
-		binary_pwd ++;
-	}
-	/* free the hashed password */
-	OPENSSL_free (binary_pw_begin);	
+
+	EVP_EncodeBlock ((unsigned char*)encoded, 
+							(const unsigned char*)binary_data, len);
+	OPENSSL_free (binary_data);
 }
 
 /* get a number from the user */
@@ -142,7 +134,7 @@ bool verify_solution_password (Puzzle *p, const char* password)
 	digest_message ((const unsigned char *)password, strlen(password),
 						&hashed_sol_password, &len);
 	char hashed_hex_pwd[256] = { (char) NULL };
-	to_hexadecimal (hashed_hex_pwd, hashed_sol_password, len);
+	encode_binary (hashed_hex_pwd, hashed_sol_password, len);
 	
 	if (strcmp (p->hashed_solution_password, hashed_hex_pwd) == 0)
 		return true;
@@ -164,7 +156,7 @@ bool verify_master_password (Puzzle *p, const char* password)
 	digest_message ((const unsigned char *)password, strlen(password),
 						&hashed_mas_password, &len);
 	char hashed_hex_pwd[256] = { (char) NULL };
-	to_hexadecimal (hashed_hex_pwd, hashed_mas_password, len);
+	encode_binary (hashed_hex_pwd, hashed_mas_password, len);
 	
 	if (strcmp (p->hashed_master_password, hashed_hex_pwd) == 0)
 		return true;
@@ -188,7 +180,7 @@ void set_solution_password (Puzzle *p, const char *password)
 		/* the hashedpwd contains binary data - we will convert it to 
 		   hexadecimal data and store in file */
 
-		to_hexadecimal (p->hashed_solution_password, hashedpwd, len);
+		encode_binary (p->hashed_solution_password, hashedpwd, len);
 	}
 }
 
@@ -208,7 +200,7 @@ void set_master_password (Puzzle *p, const char *password)
 		/* the hashedpwd contains binary data - we will convert it to 
 		   hexadecimal data and store in file */
 
-		to_hexadecimal (p->hashed_master_password, hashedpwd, len);
+		encode_binary (p->hashed_master_password, hashedpwd, len);
 	}
 }