Collaborate Disseminate
I am studying PDF text extraction. I came across this PDF from which i can’t extract text properly nor can i copy it. How to achieve it? Not that I am an expert.
here’s what i tried and found
text selection : Adobe’s text selection is nea… Continue reading How to analyse text extraction prevention measures in a PDF? [closed]
There’s a popular Sysadmin meme that system problems are “always DNS”. In the realm of security, it seems like “it’s always Unicode“. And it’s not hard to see why. Unicode …read more Continue reading This Week in Security: Unicode Strikes Again, Trust No One (Redditor), and More
The range of characters that can be represented by Unicode is truly bewildering. If there’s a symbol that was ever used to represent a sound or a concept anywhere in …read more Continue reading Building Up Unicode Characters One Bit at a Time
Reading how Spotify was normalizing unicode inconsistently, and now I’m questioning if I am overlooking any issue on accepting non-normalized usernames.
From what I can tell, lowercase was first used on unix because users had to log in fro… Continue reading Is there any benefit to normalize unicode/utf-8 names that I am overlooking?
Computer engineer [Marco Cilloni] realized a lot of developers today still have trouble dealing with Unicode in their programs, especially in the C/C++ world. He wrote an excellent guide that …read more Continue reading Understanding and Using Unicode
I am working on a server software that receives an utf-8 encoded email address to send an email to.
I permit multibyte unicode characters (emoji etc.). Then I pass that email address to Sendmail to send an email with Postfix.
Is that dange… Continue reading Is OK to accept multibyte unicode codepoints as recipient address for Sendmail and Postfix?
For those of us with science and engineering backgrounds, opening the character map or memorizing the Unicode shortcuts for various symbols is a tedious but familiar part of writing reports …read more Continue reading Custom Macro Pad Helps Deliver Winning Formulas
There was an interesting tidbit buried in a Computerphile video released last week (below the break), featuring professors [David Brailsford] and [Brian Kernighan] having a chat over coffee. Among other …read more Continue reading Coffee with Kernighan
I’m conducting tests using hashcat and find it very difficult if the hash is encoded.
See the below function which takes the plain text, converts that to the bytes, creates the SHA512 hash and then encode to string.
static string GetSHA512… Continue reading Cracking UTF encoded hash using hashcat
For anyone old enough to have worked with the hell of multiple incompatible character sets, Unicode has been a liberation; a true One Character Set To Contain Them All. We …read more Continue reading Can You Identify This Mystery Unicode Glyph?