Updated FAQ

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FAQ.md
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@ -1076,6 +1076,7 @@ In case the certificate chain is incorrect, you can tap on the little info butto
After the certificate details the issuer or "selfSign" is shown. After the certificate details the issuer or "selfSign" is shown.
A certificate is self signed when the subject and the issuer are the same. A certificate is self signed when the subject and the issuer are the same.
Certificates from a certificate authority (CA) are marked with "[keyCertSign](https://tools.ietf.org/html/rfc5280#section-4.2.1.3)". Certificates from a certificate authority (CA) are marked with "[keyCertSign](https://tools.ietf.org/html/rfc5280#section-4.2.1.3)".
You can find the description of other key usage bits, like *cRLSign*, via this same link.
Certificates found in the Android key store are marked with "Android". Certificates found in the Android key store are marked with "Android".
A valid chain looks like this: A valid chain looks like this:
@ -1095,8 +1096,6 @@ If you are looking for a free (test) S/MIME certificate, see [here](http://kb.mo
Please be sure to [read this first](https://davidroessli.com/logs/2019/09/free-smime-certificates-in-2019/#update20191219) Please be sure to [read this first](https://davidroessli.com/logs/2019/09/free-smime-certificates-in-2019/#update20191219)
if you want to request an S/MIME Actalis certificate. if you want to request an S/MIME Actalis certificate.
S/MIME certificates can for example be purchased via [Xolphin](https://www.xolphin.com/).
How to extract a public key from a S/MIME certificate: How to extract a public key from a S/MIME certificate:
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