md5

问题 I'm trying to authenticate to my LDAP server using DIGEST-MD5 encryption. While using Simple encryption it works just fine, but I can't have the password sent over the network in plain-text, for obvious reasons. The strange thing is that while using Softerra LDAP Browser I can connect to the server using Digest-MD5, but through my Code I receive a range of errors. Here is a snippet of code from my LDAP authentication class where I try to set the security authentication etc before creating the

问题 I have MD5 hashes of passwords in a database that I want to use against HTTP AUTH DIGEST. But in reading the docs, it looks like the digest hash contains a hash of the username,realm and plaintext password. Is there any way to use the MD5 hash of the password in this situation? 回答1: No. If the hash they need is generated like so: MD5(username + realm + password) You are out of luck. If they are hashing the password like so: MD5(MD5(password) + username + realm) You'd be able to do that with

问题 After two hours of reading documentation, source code and help-threads, I'm giving up. I can't get psycopg2 to authenticate with a md5-string. According to this thread I don't have to anything besides enabling md5-auth in pg_hba.conf . This is my current pg_hba.conf : # TYPE DATABASE USER CIDR-ADDRESS METHOD local all all md5 host all all 127.0.0.1/32 md5 host all all ::1/128 md5 host all all 0.0.0.0/0 md5 And I use psycopg2 like this: psycopg2.connect(host='localhost', port=5433, user='me',

问题 After two hours of reading documentation, source code and help-threads, I'm giving up. I can't get psycopg2 to authenticate with a md5-string. According to this thread I don't have to anything besides enabling md5-auth in pg_hba.conf . This is my current pg_hba.conf : # TYPE DATABASE USER CIDR-ADDRESS METHOD local all all md5 host all all 127.0.0.1/32 md5 host all all ::1/128 md5 host all all 0.0.0.0/0 md5 And I use psycopg2 like this: psycopg2.connect(host='localhost', port=5433, user='me',

问题 I have got 2 files. Let us call them md5s1.txt and md5s2.txt. Both contain the output of a find -type f -print0 | xargs -0 md5sum | sort > md5s.txt command in different directories. Many files were renamed, but the content stayed the same. Hence, they should have the same md5sum. I want to generate a diff like diff md5s1.txt md5s2.txt but it should compare only the first 32 characters of each line, i.e. only the md5sum, not the filename. Lines with equal md5sum should be considered equal. The

问题 I need to compute a hash code of a string and store it into a 'long' variable. MD5 and SHA1 produce hash codes which are longer than 64 bits (MD5 - 128 bits, SHA1 - 160 bit). Ideas any one? Cheers, Doron 回答1: You can truncate the hash and use just the first 64 bits. The hash will be somewhat less strong, but the first 64 bits are still extremely likely to be unique. For most uses of a hash this is both a common and perfectly acceptable practice. You can also store the complete hash in two 64

问题 I wonder how reliable the adler32 checksum is, compared to e.g. md5 checksums? It was told on wikipedia that adler32 is "much less reliable" than md5, so I wonder how much, and in which way? More specifically, I'm wondering if it is reliable enough as a consistency check for long-time archiving of (tar) files of size 20GB+? 回答1: For details on the error-checking capabilities of the Adler-32 checksum, see for example Revisiting Fletcher and Adler Checksums. Maxino, 2006. This paper contains an

问题 My php form inserts a few columns and an encrypted password into my table. However when I run it it says the variable number doesn't match the number of parameters. This is my code: <?php if (isset($_POST['insert'])) { require_once 'login.php'; $OK = false; $conn = new mysqli ($host, $user, $password, $database) or die("Connection Failed"); $stmt = $conn->stmt_init(); $sql = 'INSERT INTO users (user_email, user_name, user_pref, user_password) VALUES(?, ?, ?, des_encrypt(substring(md5(rand())

问题 Alright, I have two files. They are the EXACT SAME. The first file is: http://iadsonline.com/servconfig.php And the second file is: http://xzerox.info/servconfig.php However, when I use md5_file() to get their MD5, They return two different MD5's. The first returns cc7819055cde3194bb3b136bad5cf58d , which is incorrect, and the second returns 96a0cec80eb773687ca28840ecc67ca1 , which is correct. The file is simply an   To verify, I've used this code: $contents = file_get_contents($URL); echo

问题 Alright, I have two files. They are the EXACT SAME. The first file is: http://iadsonline.com/servconfig.php And the second file is: http://xzerox.info/servconfig.php However, when I use md5_file() to get their MD5, They return two different MD5's. The first returns cc7819055cde3194bb3b136bad5cf58d , which is incorrect, and the second returns 96a0cec80eb773687ca28840ecc67ca1 , which is correct. The file is simply an   To verify, I've used this code: $contents = file_get_contents($URL); echo