Justin Tan Online @ tyjtyj.com

Tech

SHA-1/SHA1 phased out and SHA256

by on Jun.18, 2015, under Tech

Recently, I been working on the web page ssl cert signature. It as come to my attention that it appear that Google Chrome browser will begin sun setting SHA1 algorithm cert. This means the browser will report your page is unsecured even with valid SSL cert installed. Other major browser such as Firefox and Internet Explorer will also follow the trail. Firefox and Chrome will slowly begin to show warning and error over the time until 1 Jan 2017. All 3 major browser will begin rejecting the SHA1 cert after 1 Jan 2017. In fact, developer looking at Firefox console already seeing the error. What surprise me is that Google website still using SHA1 at the time of this writing, I would assume they will be the first to move to SHA256. Well, maybe Google try to accommodate old device/browser.

So remember this date 1 Jan 2017 will be the last day before your boss knock on your door on this issue.

Side note: other crypto that also phase out
RCA4
SSLv3
SSLv2

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Captcha reCaptcha. Tired of waiting time.

by on Jan.03, 2012, under Personal, Tech

Have you been tired typing the captcha just to download a file for a few files ? Especially in Malaysia where the line keep disconnected and unstable, you will need to keep key in new captcha. Frustrated right. Here I found a solution to the problem for site like fileserve.com, filesonic.com, wupload.com and ……. the list go one. Using a software call JDownload will able to help you recognize  the captcha for some site like Megaupload.com but other site using more complex captcha wont work.

Imagine you have to download 10 or 20 files from filesonic.com  without premium account, you will need to fill up captcha and wait for it download[might need to wait 20 mins before next download] then repeat again. If each file around 100mb, that will take you few days to download. So let me give you as solution. Some people call it anti recaptcha but it actually solve captcha using captcha.trader.

captcha.trader will be able to solve up the complex captcha for you. So all you do is queue up the download files in the Jdownloader and link up captacha.trader. Jdownloader will connect to captcha.trader to have someone solve the captcha for you. But wait everything come with as cost. Every captcha solved cost 10 point and you will need to earn that point. You must login to captcha.trader and help people solve their captcha and gain 7 point each correct answer.

Here is the step for the how process.
1. Create account with captcha.trader
2. Download and install Jdownloader.
3. Install captcha.trader plugin to your Jdownloader. Insert your username and password
4. Login to captcha.trader and start earning point/credit
5. Queue up your download in Jdownloader and see the magic works.

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Tablet War

by on May.16, 2011, under Personal, Tech

It’s been sometimes since Japan slammed by gigantic wave so people moved on and hope they found their loves one by any means.

Here come the next major decision of my life. The tablet that flood into the market like free device. Even uncle and auntie are look at it. What makes it so special to them ? I don’t know but probability their son, niece or whatever you name it needs it.

After going thru all the Tablet spanning in the market, I narrow down to major device that worth considering(Only refering to 10″. No point getting 7″ if you already have touch screen phone ). I am listing it down as least preference first.

1. Galaxy Tab 10.1″
This gets out the list first because lack of hardware support,  there no HDMI support and no USB support not mention any docking station and overpriced piece of hardware. I don’t in any direction this gonna standout of others.

2. Acer Iconia
Acer has everything I need about tablet, USB port, Docking station, standard micro USB port, 730g weight.
However there is one things bothers me anyway, It’s Acer anyway. My last Acer device barely able to pass 1 year without over heating issue. I am losing my trust of this brand for anything it come out with it.

3. Motorola Xoom
I finally ended up choose this as it have most out my requirement. Major item like Micro USB, HDMI, Tegra 2 GPU. One of the main consideration put in hope this device to get direct support from Google as it is AOSP Honeycomb.

Update 1 Dec 2011
Pretty regret about Xoom as the price from over S$888 down to 400 in just over 6 months. In addition to this, also learn that it might not the first to get ICS after Galaxy Nexus released. Furthermore, 12V charger also big problem as i need to bring addition charger to travel. Xoom not having IPS screen is a deal breaker considering I gonna look at the screen closely.

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