IT Security Stack Exchange
IT Security Stack Exchange

Questions tagged [encoding]

Encoding is a set of predefined rules to reversibly transform a piece of information in a certain representation into a completely different representation. The other way round is called decoding.

207 questions
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What does this "ICAgICAg…" mean in public key certificates and messages?

I noticed that the string ICAgICAgICAgICAgICAg, in various repeating lengths, appears fairly often in public key certificates and ciphertexts. What does this mean? Is it some kind of padding? Is it a quirk of the encryption?
Richard Hum
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After encoding process with msfvenom, my tool is not working. Why?

I tried to encode my tool, which was developed by me with Ruby, by using msfvenom of Metasploit Framework and I succeed. My source code was encoded completely. But, when I tried to use my encoded tool, I met an error "command not found". What is the…
Hasan
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Directory traversal only works with URL-encoded "%00" char in the end

I found a site, using acunetix, with a POST form which is possible to see plain text files, basically it's a directory traversal vulnerability, but the curious thing is that it only works when I add a "%00" in the end of the query string, something…
Thiago Dias
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SPAM postscript

I have been getting a lot of SPAM lately that have some type of encoded block added to the end. I am wondering if anyone here would know how to decode it. Here is an…
happycamper
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Can an XOR cipher be broken if the plaintext is an incrementing number?

Many moons ago, I was working with a team that was building a public-facing website. We originally built the system using auto-incrementing numeric primary keys as the public identifier for each piece of content that was collected. Word came down…
smitelli
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How was this token decoded?

I've read this interesting comment (about the security level, or lack thereof of some website built by a prominent chip manufacturer, an interesting discussion by it's own virtue, but not my question) Here is the comment (the bold section is my…
Eran Medan
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Should Content-Encoding deflate be disabled

After scaning web page with Nikto I have results that is "The Content-Encoding header is set to "deflate" this may mean that the server is vulnerable to the BREACH attack." How to verify if that result isn't false positive? In proxy I don't see any…
user187205
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How can I determine what encoding is being used?

I'm testing a webapp as part of a bug bounty program where the value of a product ticket given to clients is being encoded. FYI, ticket number is given to an user for an adquired product. Webapp has an input field where ticket number can be entered…
Alvaro
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What Type Of Encoding Is This?

I need help, what type of encoding is this? It is a popular encoding, not an encryption. begin 666 Restricted.zip …
Dakota
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Question about editing hex values of a file

I just learned to use hex editors and i have a question: If i change 1 or some of hex values of a file(picture) and save it, Is there a way to find changed hex values an make original file back?
hamedb71
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