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jas-

30 karma · joined August 1, 2014

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jas-··on DHCP is not blocked by ufw/iptables
ARP? Don’t you need arptables for this? OSI model 101
jas-··on Ask HN: Those making $0/month or less on side projects – Show and tell
Kruptein: https://github.com/jas-/kruptein

A node.js module which implements a standard API for symmetric encryption and does so by providing the requisite key derivation from a supplied secret, strong key and cipher selections, performs validate then decrypt of cipher text while supporting most language character sets and ASN.1 encoding ensuring compatibility with most if not all database engines.

Used best practices documentation and am currently using famous cryptographers throughout history to name each release.

Example: v3.0.4 Étienne Bazeries - He is best known for developing the "Bazeries Cylinder", and is described as "one of the greatest natural cryptanalysts the science has seen".

jas-··on The risk of orbital debris and one cheap way to mitigate it
A magnet?
jas-··on What would a “good” WebMD look like?
Real world metrics on causes. Totals of cases, known vs unknown cases and a percentage associated to each possible cause based on those variables?
jas-··on ‘Machine Scientists’ Distill the Laws of Physics from Raw Data
Wouldn't this be a "what we know about physics" distillation? I am basing this assumption on the "Raw data" as being that of already performed experimentation etc.
jas-··on Ask HN: Why do VDOM implementations always use function calls instead of data?
You would think the native DOM parsing engine would be quicker than trying to add another layer of abstraction and parsing which would incur additional overhead
jas-··on If you’re not using SSH certificates you’re doing SSH wrong (2019)
Please enlighten me on the ‘many single points of security failure.’
jas-··on The Worst US Defense Program of All
I would be interested to see metrics on articles involving positive vs negative opinions regarding defense programs.
jas-··on If you’re not using SSH certificates you’re doing SSH wrong (2019)
Now you have a centralized single point of failure. While the ease of use is inherently obvious with the implementation, if/when it does fail you will have to fall back to public key/password auth anyways.
jas-··on Key senators have voted for the anti-encryption EARN IT act
I have not read the details on the bill. However, a quick glance just reminds me of how counter productive and opposite of what our tax paid for research outlines as best practices for protecting data.

The NIST SP 800 series publications were paid for by our tax money and outline how encryption should be used for ALL. Not to mention sets standards for all of the intricacies that come with development, implementation and validation of strong algorithms for use in commerce, medical, federal, military and even GAH personal use.

https://www.nist.gov/cryptography

jas-··on The Expansion of the Clean Network to Safeguard America’s Assets
Why aren’t there lines of effort for hardware manufacturing processes, firmware and logistical supply chains?
jas-··on How is NSA breaking so much crypto? (2015)
Have you considered the adversary and their tactics?
jas-··on Ask HN: Selinux – what does it protect against?
While I used Apache as an example here I have configured a policy to protect a php application with known vulnerabilities which was prevented.

If you wish you could go install a docker image for a honeypot and then build policies with selinux to confirm yourself.

jas-··on Ask HN: Selinux – what does it protect against?
SELinux can assist with prevention of various attack scenarios.

When policies and environments are setup correctly it can and will help protect the system.

Scenario: The target; A DMZ, forward facing system running an application such as Apache.

A zero day exists in the apache service that allows code execution as the running user; say apache for example.

If care has been taken with an selinux policy that prevents the apache user from executing anything but the shared libraries and binaries associated with the apache web service then an attacker that gained access as the apache user would not be able to escalate privileges or engage in further local attacks on the system due to the policy constraints.

Resources: The URI https://www.serverlab.ca/tutorials/linux/web-servers-linux/c... provides some exmaples for apache however the following URI https://access.redhat.com/documentation/en-us/red_hat_enterp... (see procedure 3.2 & 3.3) for details on using selinux to confine processes and users.

jas-··on Hello, GitHub
Skeptical, but not without cause.

1. Late 90's/Early 2000's, Microsoft's implementation and inclusion of CDRW/DVDRW functionality native to the OS eliminating competition from smaller companies that had pioneered the technology and was selling their software to Windows desktop users.

2. Late 90's/Early 2000's, Microsoft's implementation and development of Active Directory which not only rivaled Novell's Netware flagship product but also went against RFC's put forth by the larger community that rivaled OpenLDAP. Because of the desktop shares and users already on the Windows NT platform put thousands out of work and nearly put Novell out of business.

3. Early to mid 2000's, Microsoft moves away from already found vulnerable MSCHAP, MSCHAPV2 authentication protocols in favor of the MIT Kerberos protocol for all network authentication of users and systems in Active Directory.

Not only did this put those companies out to pasture and eliminate a large amount of revenue but the idea of stealing and idea is very bad tact. Reverse engineering code to gain a larger market share is not only dishonest but plagarism and illegal in schools. Why should the free economy play by a different set of rules?

People wonder why Microsoft has a bad reputation, the three things I have witnessed over the years in conjunction with the snatching up smaller companies and parting them out make me and I am sure many others very skeptical of their desire to snatch up the worlds largest source code repository.

jas-··on Microsoft Is Said to Have Agreed to Acquire GitHub
Does this remind anyone else of the back to the future movie where Biff is the free worlds leader and just a pompous asshat with the power to keep being a pompous asshat?

Having watched Microsoft over the years steal ideas from smaller companies (not purchase them then bastardize and part them out mind you), but actually steal their ideas and make them standard in their operating system.

Some examples are CDR/CDRW now standard after small companies in the late 90's developing the standard.

The bastardized implementation of Active Directory after Novell's Netware platform and the later implementations of OpenLDAP and the standards that were spurned.

What about the MIT Kerberos authentication mechanisms after Microsofts MsCHAPv2, MsCHAP & NTLM roll your own crypto schemes were found easily crackable and exploitable?

I can go on but actually have to do some work today...

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