Tags » Private-key

Powershell - Split PFX certificates

Hi!!
It’s been awhile since I’ve posted something but last week I wrote a small script which I think will be useful to you!

Part of my many tasks where I work is to manage our PKI and in general work with and issue certificates. 826 more words

Powershell

linux: WARNING: UNPROTECTED PRIVATE KEY FILE!

If you face this kind of problem on Debian 8:


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@ WARNING: UNPROTECTED PRIVATE KEY FILE! @
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Permissions 0644 for '/home/iplsdk/.ssh/id_rsa' are too open. 10 more words
Linux

Message Authentication Codes

Message Authentication Codes also known as (MACs) are similar techniques to the Digital Signatures. MACs use Symmetric keys between all parties; and they provide… 195 more words

Cybersecurity

Introduction to Hash Functions – Part 2/2

Hash function is a process of taking any input (long or short message) and return a fixed-size alphanumeric string. The output string is known as the “ 164 more words

Cybersecurity

nullcon HackIM – 2017 – Crypto 1

Here is how to resolve the challenge “Breaking Brain” provided, during a CTF, by nullcon HackIM in February 2017. I took me more time than the Crypto 2… but I got it! 1,242 more words

CTF

Cisco Email Security Appliance and DKIM Signing

In a previous blogpost, I already discussed DKIM signing with Exchange 2016:  SenderID, SPF, DKIM and DMARC in Exchange 2016 – Part II

Exchange out-of-the-box does support SPF checking, but DKIM signing/verifying and DMARC verifying are not supported. 992 more words

Exchange

What is Hybrid System?

Hybrid system is a basic key transport protocol that incorporates both Asymmetric and Symmetric Algorithms. In another word, this system uses a combination of both ( 282 more words

Cybersecurity