Informations about SSL certificates and networks security
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This is good news: Whenever you visit a website — even if it’s HTTPS enabled — the DNS query that converts the web address into an IP address that computers can read is usually unencrypted. DNS-over-HTTPS, or DoH, encrypts the request so that it can’t be intercepted or hijacked in order to send a user … Read More “Firefox Enables DNS over HTTPS” »
I don’t know what to make of this story: The email was sent on Tuesday by the CEO of Trustico, a UK-based reseller of TLS certificates issued by the browser-trusted certificate authorities Comodo and, until recently, Symantec. It was sent to Jeremy Rowley, an executive vice president at DigiCert, a certificate authority that acquired Symantec’s … Read More “E-Mailing Private HTTPS Keys” »
PoisonTap is an impressive hacking tool that can compromise computers via the USB port, even when they are password-protected. What’s interesting is the chain of vulnerabilities the tool exploits. No individual vulnerability is a problem, but together they create a big problem. Kamkar’s trick works by chaining together a long, complex series of seemingly innocuous … Read More “Hacking Password-Protected Computers via the USB Port” »
Interesting paper: “Security Collapse of the HTTPS Market.” From the conclusion: Recent breaches at CAs have exposed several systemic vulnerabilities and market failures inherent in the current HTTPS authentication model: the security of the entire ecosystem suffers if any of the hundreds of CAs is compromised (weakest link); browsers are unable to revoke trust in … Read More “Economic Failures of HTTPS Encryption” »