md5

PHP.net says that md5() and sha1() unsuitable for password?

南楼画角 提交于 2019-12-02 13:33:06
http://www.php.net/manual/en/faq.passwords.php#faq.passwords.fasthash I'm storing user passwords in a MySQL database in hash form. Does this mean that it is unsafe to do so? If it is, what are my alternatives? The next question in the FAQ you linked to discusses it: How should I hash my passwords, if the common hash functions are not suitable? From the FAQ: The suggested algorithm to use when hashing passwords is Blowfish, as it is significantly more computationally expensive than MD5 or SHA1, while still being scalable. The question following that is about salt. Has been answered many times

Need help… how to add md5 to password field in php?

你。 提交于 2019-12-02 13:26:04
i looking some help and nice attention here.. i bought some php script many years ago and now no suport anymore... i just want to add md5 to password field.. here my form: <?php $SQL = "SELECT * from USERS WHERE USERNAME = '$_SESSION[username]'"; $result = @mysql_query( $SQL ); $row = @mysql_fetch_array( $result ); include 'menu.php'; ?> <FORM METHOD="post" ACTION="?page=query_client"> <INPUT TYPE="hidden" NAME="controller" VALUE="USERS~update~account_details&up=1~<?php echo $row[ID]; ?>"> <TABLE CLASS="basictable"> <TR> <TD CLASS="tdmenu" WIDTH="40%">Username</TD> <TD CLASS="tdmenu" WIDTH="60

Is this a good way to encrypt passwords with MD5?

我怕爱的太早我们不能终老 提交于 2019-12-02 11:48:36
I have never encrypted a password before, and this is what I came up with to do it, with the aid of this article . The article didn't include salt, so I had to figure it out myself: UTF8Encoding encoder = new UTF8Encoding(); byte[] salt = new byte[8]; new Random().NextBytes(salt); byte[] encodedPassword = encoder.GetBytes(txtPassword.Text); byte[] saltedPassword = new byte[8 + encodedPassword.Length]; System.Buffer.BlockCopy(salt, 0, saltedPassword, 0, 8); System.Buffer.BlockCopy(encodedPassword, 0, saltedPassword, 8, encodedPassword.Length); byte[] encryptedPassword = new

Does md5 stop SQL Injection

与世无争的帅哥 提交于 2019-12-02 11:22:37
问题 Ok, So, i'm a little unsure on this. I have a url parameter username . and I have this statement SELECT * FROM users WHERE user_hash = md5($_GET['username']) Is this secure? Upon account creation an md5 hashed version of the username and the password are stored. I'm confused as this seems so simple, if md5 stops sql injection why isn't username and password always saved in hash form? 回答1: Yes, this will avoid SQL injection, because md5() always returns a string of hex code. But it isn't a

Secure a php proxy?

拥有回忆 提交于 2019-12-02 07:01:43
问题 So on my site (https://example.com) I have a page that parses the last.fm API and pulls back the images off their akamai CDN and displays them on the page. The thing is all the images are served on HTTP ONLY, https is not supported. e.g: http://userserve-ak.last.fm/serve/64s/76030502.png I have an image proxy written in php: <?php header('Content-Type: image/png'); if(isset($_GET['img'])){echo file_get_contents($_GET['img']);} ?> This works perfectly, however, is NOT secure at all, I want it

Secure a php proxy?

半城伤御伤魂 提交于 2019-12-02 05:11:50
So on my site (https://example.com) I have a page that parses the last.fm API and pulls back the images off their akamai CDN and displays them on the page. The thing is all the images are served on HTTP ONLY, https is not supported. e.g: http://userserve-ak.last.fm/serve/64s/76030502.png I have an image proxy written in php: <?php header('Content-Type: image/png'); if(isset($_GET['img'])){echo file_get_contents($_GET['img']);} ?> This works perfectly, however, is NOT secure at all, I want it so that only my server can use the image proxy and as such a hash in the URL might be the best option?

Can I convert password to md5 in javascript before sending to php page?

ぃ、小莉子 提交于 2019-12-02 04:09:27
问题 Can I convert a password entered into a form to md5 hash using javascript before sending it to my php validation page using javascript? If yes, how? Or is there an easier way to do it? Thank you. 回答1: You shouldn't do that anyway. JavaScript can easily be disabled and you will be saving/manipulating plain password . Use PHP instead for that. 回答2: There are a few simple rules regarding password handling: To safely transfer passwords from the browser to your server, use SSL! Don't settle for

Does md5 stop SQL Injection

自古美人都是妖i 提交于 2019-12-02 04:09:23
Ok, So, i'm a little unsure on this. I have a url parameter username . and I have this statement SELECT * FROM users WHERE user_hash = md5($_GET['username']) Is this secure? Upon account creation an md5 hashed version of the username and the password are stored. I'm confused as this seems so simple, if md5 stops sql injection why isn't username and password always saved in hash form? Yes, this will avoid SQL injection, because md5() always returns a string of hex code. But it isn't a general solution to SQL-injection. You would have to encode almost all the data in your tables in MD5 format.

md5 implementation for non-byte addressable arch?

蓝咒 提交于 2019-12-02 01:37:48
The common implementation for MD5 is given by RFC1321 . Where the MD5Update function receive a pointer to chars . My architecture, a SHARC ADSP-21371, is not byte adressable which means: sizeof(int32_t) == 1 Thus I cannot really use this algorithm as is. I need to wrap some complexity to unpack each int32_t data. Is there an alternative solution that I can use out of the box and if possible compatible C99 or C11? I finally implemented MD5 for a octet-addressable architecture, here is for a DSP SHARC (ADSP-21371). md5.h #ifndef MD5_H #define MD5_H #include <stdlib.h> #include <stdint.h> typedef

Linux Command Line using for loop and formatting results

妖精的绣舞 提交于 2019-12-02 01:30:35
How can I use one command line to provide a list of all files between a certain size and then format the file with name, md5 has and the file size. The example output should be file1.*** MD5 value size file2.*** MD5 value size etc. Ive tried the following but it displays the md5 on a separate line find 'directory' -size +30000c -size -50000c | while read filename do ls -l "$filename" | awk '{print $9 "\t" $5}' md5sum "$filename" | awk '{print $1}' done It outputs the follow with the MD5 on a seperate line file1.*** size MD5 file2.*** size MD5 You are very close, just a few fixes needed: #!/bin