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After September 2021, some HTTPS on old Android devices before Android 7.1.1 will not be able to display as a secure site. Google has recently urged a strong HTTPS switch to encrypted security, and the Chrome browser is responding by displaying a warning on unencrypted sites or blocking mixed content. For this reason, the number of secure sites using HTTPS is increasing, but the SSL certificate is an essential part of HTTPS.
The Let’s Encrypt root certificate, which issues such certificates for free and holds a 30% share of secure sites as of August 2019, will be converted in 2021. Let’s Encrypt is a certification body run by ISRG, a non-profit organization established in 2014. At the beginning of the establishment, of course, none of the terminals supported the Let’s Encrypt root certificate ISRG Root X1, so the root certificate DST Root X3 was used in cooperation with the main certification body, IdenTrust.
With the end of this alliance in January 2021, Let’s Encrypt will use its own root certificate, ISRG Root X1. Since the validity period of the identity trust root certificate is until September 2021, there is no significant impact until this time. However, after September, there is a possibility that users who do not support ISRG Root X1 may not be able to access because a warning or error is displayed when viewing a website that uses Let’s Encrypt certificate.
Since Android supports ISRG Root X1 in 7.1.1 or higher, it will have little effect on recent devices. Nevertheless, 33.8% of Android devices using Google Play are versions prior to 7.1, which can cause a lot of impact.
Updating Android is the best solution, but if your device is less than 7.1, there will be many cases that don’t already provide an update or stop support. If you want to put the terminal replacement into view, but you don’t have to use the terminal, you can still display it by using Firefox, which has a root certificate separate from Oscar. Related information can be found here .
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