mirror of
https://github.com/cesanta/mongoose.git
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37 lines
1.3 KiB
Bash
37 lines
1.3 KiB
Bash
#/bin/sh
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#
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# Geneate self-signed ECC certificates
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cd `dirname $0`
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# Create cnf for adding SAN DNS:localhost
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# See https://security.stackexchange.com/questions/190905/subject-alternative-name-in-certificate-signing-request-apparently-does-not-surv
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cat > cnf <<EOF
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[SAN]
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subjectAltName=DNS:localhost
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EOF
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# Generate CA
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# Important: CN names must be different for CA and client/server certs
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openssl ecparam -noout -name prime256v1 -genkey -out ca.key
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openssl req -x509 -new -key ca.key -days 3650 -subj /CN=Mongoose -out ca.crt
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# Generate server cert
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openssl ecparam -noout -name prime256v1 -genkey -out server.key
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openssl req -new -sha256 -key server.key -days 3650 -subj /CN=server -out server.csr
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openssl x509 -req -sha256 -in server.csr -extensions SAN -extfile cnf \
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-CAkey ca.key -CA ca.crt -CAcreateserial -days 3650 -out server.crt
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# Generate client cert
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openssl ecparam -noout -name prime256v1 -genkey -out client.key
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openssl req -new -sha256 -key client.key -days 3650 -subj /CN=client -out client.csr
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openssl x509 -req -sha256 -in client.csr -extensions SAN -extfile cnf \
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-CAkey ca.key -CA ca.crt -CAcreateserial -days 3650 -out client.crt
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# Verify
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openssl verify -verbose -CAfile ca.crt server.crt
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openssl verify -verbose -CAfile ca.crt client.crt
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# Inspect
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# openssl x509 -text -noout -ext subjectAltName -in server.crt
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