143 lines
5.0 KiB
Bash
143 lines
5.0 KiB
Bash
#!/bin/bash
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# Script to generate modern self-signed certificates for Nginx Proxy Manager with OpenSSL v3 extensions
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# Prompt for domain
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read -p "Enter the domain for the certificates (e.g., example.com): " DOMAIN
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if [ -z "$DOMAIN" ]; then
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echo "Error: Domain not provided."
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exit 1
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fi
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CERTS_DIR="/opt/files/certs"
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mkdir -p "$CERTS_DIR"
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# Create OpenSSL configuration files
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cat > "$CERTS_DIR/openssl_root_ca.cnf" <<EOF
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[ req ]
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default_bits = 4096
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distinguished_name = req_distinguished_name
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prompt = no
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string_mask = utf8only
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x509_extensions = v3_ca
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[ req_distinguished_name ]
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CN = $DOMAIN Root CA
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[ v3_ca ]
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subjectKeyIdentifier = hash
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authorityKeyIdentifier = keyid:always,issuer
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basicConstraints = critical, CA:true
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keyUsage = critical, digitalSignature, keyCertSign, cRLSign
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EOF
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cat > "$CERTS_DIR/openssl_intermediate_ca.cnf" <<EOF
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[ req ]
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default_bits = 4096
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distinguished_name = req_distinguished_name
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prompt = no
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string_mask = utf8only
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[ req_distinguished_name ]
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CN = $DOMAIN Intermediate CA
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[ v3_ca ]
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subjectKeyIdentifier = hash
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authorityKeyIdentifier = keyid:always,issuer
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basicConstraints = critical, CA:true, pathlen:0
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keyUsage = critical, digitalSignature, keyCertSign, cRLSign
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EOF
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cat > "$CERTS_DIR/openssl_wildcard.cnf" <<EOF
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[ req ]
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default_bits = 4096
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distinguished_name = req_distinguished_name
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prompt = no
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string_mask = utf8only
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req_extensions = v3_req
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[ req_distinguished_name ]
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CN = *.$DOMAIN
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[ v3_req ]
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subjectKeyIdentifier = hash
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authorityKeyIdentifier = keyid,issuer
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basicConstraints = CA:FALSE
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keyUsage = critical, digitalSignature, keyEncipherment
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extendedKeyUsage = serverAuth
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subjectAltName = @alt_names
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[ alt_names ]
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DNS.1 = $DOMAIN
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DNS.2 = *.$DOMAIN
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EOF
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# Function to generate root CA
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generate_root_ca() {
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echo "Generating Root CA..."
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openssl genrsa -out "$CERTS_DIR/rootCA.key" 4096
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openssl req -x509 -new -nodes -key "$CERTS_DIR/rootCA.key" \
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-sha256 -days 3650 -out "$CERTS_DIR/rootCA.crt" \
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-config "$CERTS_DIR/openssl_root_ca.cnf" -extensions v3_ca
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}
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# Function to generate intermediate CA
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generate_intermediate_ca() {
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echo "Generating Intermediate CA..."
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openssl genrsa -out "$CERTS_DIR/intermediateCA.key" 4096
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openssl req -new -key "$CERTS_DIR/intermediateCA.key" \
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-out "$CERTS_DIR/intermediateCA.csr" \
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-config "$CERTS_DIR/openssl_intermediate_ca.cnf"
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openssl x509 -req -in "$CERTS_DIR/intermediateCA.csr" \
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-CA "$CERTS_DIR/rootCA.crt" -CAkey "$CERTS_DIR/rootCA.key" \
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-CAcreateserial -out "$CERTS_DIR/intermediateCA.crt" \
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-days 3650 -sha256 -extfile "$CERTS_DIR/openssl_intermediate_ca.cnf" \
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-extensions v3_ca
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}
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# Function to generate wildcard certificate
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generate_wildcard_cert() {
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echo "Generating Wildcard Certificate..."
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openssl genrsa -out "$CERTS_DIR/wildcard.key" 4096
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openssl req -new -key "$CERTS_DIR/wildcard.key" \
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-out "$CERTS_DIR/wildcard.csr" \
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-config "$CERTS_DIR/openssl_wildcard.cnf"
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openssl x509 -req -in "$CERTS_DIR/wildcard.csr" \
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-CA "$CERTS_DIR/intermediateCA.crt" -CAkey "$CERTS_DIR/intermediateCA.key" \
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-CAcreateserial -out "$CERTS_DIR/wildcard.crt" \
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-days 3650 -sha256 -extfile "$CERTS_DIR/openssl_wildcard.cnf" \
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-extensions v3_req
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}
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# Function to export certificates for cross-platform compatibility
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export_certs() {
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echo "Exporting certificates for cross-platform compatibility..."
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# Export root CA to .pfx (Windows)
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openssl pkcs12 -export -out "$CERTS_DIR/rootCA.pfx" \
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-inkey "$CERTS_DIR/rootCA.key" -in "$CERTS_DIR/rootCA.crt" -passout pass:
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# Export intermediate CA to .pfx (Windows)
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openssl pkcs12 -export -out "$CERTS_DIR/intermediateCA.pfx" \
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-inkey "$CERTS_DIR/intermediateCA.key" -in "$CERTS_DIR/intermediateCA.crt" -passout pass:
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# Export wildcard cert to .pfx (Windows)
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openssl pkcs12 -export -out "$CERTS_DIR/wildcard.pfx" \
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-inkey "$CERTS_DIR/wildcard.key" -in "$CERTS_DIR/wildcard.crt" -passout pass:
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# Export root CA to .p12 (Cross-platform)
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openssl pkcs12 -export -out "$CERTS_DIR/rootCA.p12" \
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-inkey "$CERTS_DIR/rootCA.key" -in "$CERTS_DIR/rootCA.crt" -passout pass:
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# Export intermediate CA to .p12 (Cross-platform)
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openssl pkcs12 -export -out "$CERTS_DIR/intermediateCA.p12" \
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-inkey "$CERTS_DIR/intermediateCA.key" -in "$CERTS_DIR/intermediateCA.crt" -passout pass:
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# Export wildcard cert to .p12 (Cross-platform)
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openssl pkcs12 -export -out "$CERTS_DIR/wildcard.p12" \
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-inkey "$CERTS_DIR/wildcard.key" -in "$CERTS_DIR/wildcard.crt" -passout pass:
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}
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# Main script execution
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generate_root_ca
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generate_intermediate_ca
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generate_wildcard_cert
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export_certs
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echo "Certificates generated and saved in $CERTS_DIR:"
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echo "- Root CA: rootCA.crt, rootCA.key, rootCA.pfx, rootCA.p12"
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echo "- Intermediate CA: intermediateCA.crt, intermediateCA.key, intermediateCA.pfx, intermediateCA.p12"
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echo "- Wildcard: wildcard.crt, wildcard.key, wildcard.pfx, wildcard.p12" |