Collaborate Disseminate
So I’m implementing RSA encryption. I’m processing input in chunks of known constant size (depends on modulus) but the last chunk might be smaller so I save its size in plaintext at the end of output file. Is that safe?
Continue reading Exposing size of last chunk in RSA file encryption
I’m in the process of developing a native app and am currently trying to come up with a workflow to secure the communication between my app and the server.
I’ve done a lot of research and have not come across a similar approach (regarding … Continue reading Are there any security concerns with this authentication flow?
I’m using the Windows CNG API to create a TPM-stored (or MS KSP) RSA key and want to allow non-administrative users to access it. My goal is to generate a machine level key (non-exportable) which can be accessed without admin privileges by… Continue reading How to Create a RSA Machine Key using CNG on Windows and Grant Access to All Users?
This article presents key findings from 2024 reports on data breaches. Breaches are taking longer to resolve and are becoming more costly for organizations. With recovery times extending and costs increasing, businesses face growing challenges in manag… Continue reading The real cost of data breaches for businesses
I am trying to solve vulnerability reported for QID 38909 i.e SHA1 deprecated setting for SSH. I have hardened the sshd configs in /etc/ssh/sshd_config and /etc/crypto-policies/backends/openssh and opensshserver.config. below is the ouput … Continue reading QID 38909 SHA1 deprecated setting for SSH (RHEL 8.6)
RSA announced expanded phishing-resistant, passwordless capabilities. Built to secure financial services organizations, government agencies, healthcare, and other highly-regulated industries from the most frequent and highest-impact attacks, these new … Continue reading RSA expands phishing-resistant, passwordless capabilities
Identity-related data breaches are more severe and costly than run-of-the-mill incidents, according to RSA. 40% of respondents reported an identity-related security breach. Of those, 66% reported it as a severe event that affected their organization. 4… Continue reading Identity-related data breaches cost more than average incidents
RSA and Swissbit announced that RSA will start introducing its next-generation hardware authenticators RSA iShield Key 2 series powered by Swissbit alongside RSA ID Plus for Government. Built to meet the highest security standards, the RSA iShield Key … Continue reading RSA and Swissbit join forces to secure government agencies
I have setup an AlmaLinux9 server with SSHD. I have also generated a priv+pub key on my workstation, and when I check the algorithm used by my key it shows:
ssh-keygen -l -f myprivatekey.pem
2048 SHA256:p8qjW7xUG6CrB7I0edKIGoQarzHtTgqoHf7… Continue reading What encryption algorithm is putty using?
Context
During a CTF, as www-data, I managed to exfiltrate an .rnd file used by phpseclib on a PHP app (I exfiltrated the entire app). Since SSHD is configured with PubkeyAuthentication yes and PasswordAuthentication no, my guess is that i… Continue reading exfiltred .rnd file exploitation