OpenSSL
- rootCA.key = chave privada do CA
- rootCA.pem = certificado raiz CA
- device.key = chave privada do certificado
- device.csr = requisição de certificado
- device.crt = certificado do site
ca
openssl genrsa -out rootCA.key 2048 openssl genrsa -des3 -out rootCA.key 2048 openssl req -x509 -new -nodes -key rootCA.key -sha256 -days 1024 -out rootCA.pem
cert
openssl genrsa -out device.key 2048 openssl req -new -key device.key -out device.csr openssl x509 -req -in device.csr -CA rootCA.pem -CAkey rootCA.key -CAcreateserial -out device.crt -days 500 -sha256
Altname
- Gera Chave Privada
openssl genrsa -out iam.key 2048
- Gera CSR com base na chave privada gerada e adicionando o parâmetro de SubjectAltName
openssl req -new -sha256 -key iam.key -out iam.csr -reqexts SAN -extensions SAN -config <(cat /etc/ssl/openssl.cnf <(printf '[SAN]\nsubjectAltName=DNS:iam')
SSH
authorized_keys
Bizu de como fazer banner durante o login do chave SSH.
no-port-forwarding,no-agent-forwarding,no-X11-forwarding,command="echo 'Please login as the user \"ec2-user\" rather than the user \"root\".';echo;sleep 10" <key content here>
Extracting Certificate and Private Key Files from a .pfx File
- Procedure
Take the file you exported (e.g. certname.pfx) and copy it to a system where you have OpenSSL installed. Note: the *.pfx file is in PKCS#12 format and includes both the certificate and the private key.
Run the following command to export the private key: openssl pkcs12 -in certname.pfx -nocerts -out key.pem -nodes Run the following command to export the certificate: openssl pkcs12 -in certname.pfx -nokeys -out cert.pem Run the following command to remove the passphrase from the private key: openssl rsa -in key.pem -out server.key
Displaying a remote SSL certificate details
export SITE=wiki.clusterlab.com.br openssl s_client -showcerts -servername $SITE -connect $SITE:443