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SMIME patch

Create SMIME directory

mkdir /var/www/MISP/.smime

Copy your public x509 certificate (for signing) in PEM format

cp email@address.com.pem /var/www/MISP/.smime/email@address.com.pem

Copy your private key for signing email

cp email@address.com.key /var/www/MISP/.smime/email@address.com.key

Set permissions

chown www-data:www-data /var/www/MISP/.smime
chmod 500 /var/www/MISP/.smime
chmod 440 /var/www/MISP/.smime/*

Export the public certificate (for Encipherment) to the webroot

cp public_certificate.pem /var/www/MISP/app/webroot/public_certificate.pem
Due to this action, the MISP users will be able to download your public certificate (for Encipherment) by clicking on the footer

Set permissions

chown www-data:www-data /var/www/MISP/app/webroot/public_certificate.pem
chmod 440 /var/www/MISP/app/webroot/public_certificate.pem

Configure the section "SMIME" in the server settings (Administration -> Server settings -> Encryption tab)