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crpietschmann/signCertificateWithRootCACertificate.sh

Created November 8, 2019 20:11
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Use OpenSSL to sign an x.509 certificate with another (example Root CA scenario)
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signCertificateWithRootCACertificate.sh
# generate custom root CA certificate
openssl req -x509 -newkey rsa:4096 -keyout customRootCA.key -out customRootCA.cer -days 365
# generate leaf certificate
openssl req -x509 -newkey rsa:4096 -keyout leafCert.key -out leafCert.cer -days 365 -subj “/C=/ST=/L=/O=/CN=”
# generate certificate request for the leaf certificate
openssl x509 -x509toreq -days 365 -in leafCert.cer -signkey leafCert.key -out leafCert.req
# sign the leaf certificate request with custom root CA certificate
openssl x509 -req -days 365 -in leafCert.req -signkey customRootCA.key -out leafCert.cer
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