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maniankara/self-signed-ssl-cert

Last active March 11, 2024 10:24
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Create a self signed certificate
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self-signed-ssl-cert
# Without CA
openssl req -x509 -newkey rsa:4096 -sha256 -days 365 -nodes -keyout selfsigned.key -out selfsigned.crt -subj "/C=FI/ST=Uusimaa/L=Helsinki/O=Verifa Oy/OU=IT/CN=example.verifa.io/emailAddress=selfsigned@verifa.io" -addext 'subjectAltName=DNS:sample.verifa.io,DNS=sample.verifa.com'
# With CA (repeats some steps from above)
openssl req -newkey rsa:2048 -nodes -keyout selfsigned.key -out selfsigned.csr -subj "/C=FI/ST=Uusimaa/L=Helsinki/O=Verifa Oy/OU=IT/CN=server.test.com/emailAddress=test@test.com"
openssl req -x509 -sha256 -days 1825 -newkey rsa:2048 -keyout rootCA.key -out rootCA.crt -subj "/C=FI/ST=Uusimaa/L=Helsinki/O=Verifa Oy/OU=IT/CN=server.test.com/emailAddress=test@test.com" -passout pass:test123
openssl x509 -req -CA rootCA.crt -CAkey rootCA.key -in selfsigned.csr -out selfsigned.crt -days 365 -CAcreateserial -passin pass:test123
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