md5sum

What I have tried so far SELECT md5(text) will return text (hex strings) . After that We need to xor them SELECT x'hex_string' # x'hex_string'; But the above results in binary values. How do I again convert them into hex string? Is there anyway to xor md5 values in postgresql and convert this into hexadecimal values again ? Those binary values are in fact of type bit varying , which differs significantly from bytea . bit varying comes with built-in support for XOR and such, but PostgreSQL doesn't provide a cast from bit varying to bytea . You could write a function that does the cast, but it's

Why is this different? text="tralala" echo -n $text | md5sum - result: def7d827536761c20f449f69262ff20f echo -n "tralala" | md5sum - result : 7e4ef92d1472fa1a2d41b2d3c1d2b77a what am I doing wrong? I suspect you mistakenly did not provide the -n (output no newline) flag to echo. See sample from my machine below: $ echo tralala | md5sum def7d827536761c20f449f69262ff20f - $ echo -n tralala | md5sum 7e4ef92d1472fa1a2d41b2d3c1d2b77a - $ text="tralala" $ echo $text | md5sum def7d827536761c20f449f69262ff20f - $ echo -n $text | md5sum 7e4ef92d1472fa1a2d41b2d3c1d2b77a - 来源： https://stackoverflow.com

Is there any way to write a Perl script to calculate the MD5sum of every file in a directory? If so, how could I do this? Well there are many ways to do this but it comes down to two operations you need to preform. You will first need to locate a list of the files you would like to run the check and then you will need to run the md5sum check on each of those files. There is a ton of ways to do this but the following should work for your needs. #!/usr/bin/perl use strict; use warnings; use Digest::MD5 qw(md5_hex); my $dirname = "/home/mgreen/testing/"; opendir( DIR, $dirname ); my @files = sort

I have to compare checksum of all files in /primary and /secondary folders in machineA with files in this folder /bat/snap/ which is in remote server machineB . The remote server will have lots of files along with the files we have in machineA . If there is any mismatch in checksum then I want to report all those files that have issues in machineA with full path and exit with non zero status code. If everything is matching then exit zero. I wrote one command (not sure whether there is any better way to write it) that I am running on machineA but its very slow. Is there any way to make it

In Oracle SQL, is there an MD5 function or something available to me? I would like to do something like... select name, md5_sum( name ) from person; René Nyffenegger See this Tahiti Link . Under MD5 Procedures and Functions it says These subprograms generate MD5 hashes of data. The MD5 algorithm ensures data integrity by generating a 128-bit cryptographic message digest value from given data. Also note, that DBMS_OBFUSCATION_TOOLKIT is deprecated and can/should be replaced with DBMS_CRYPTO , see this Tahiti Link You may want to check the DBMS_OBFUSCATION_TOOLKIT.MD5 procedure. Here is an

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 output should be in normal diff format. Easy starter: diff <(cut -d' ' -f1 md5s1.txt) <(cut -d' ' -f1

I have a program which saves a little .txt file with a highscore in it: // Create a file to write to. string createHighscore = _higscore + Environment.NewLine; File.WriteAllText(path, createText); // Open the file to read from. string createHighscore = File.ReadAllText(path); The problem is that the user can edit the file as simple as possible – with a texteditor. So I want to make the file unreadable / uneditable or encrypt it . My thinking was that I could save the data in a resource file, but can I write in a resource file? Or save it as .dll, encrypt/decrypt it or look for a MD5-sum/hash.

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