OpenSSL Cheatsheet

openssl req -out CSR.csr -key privateKey.key -new

openssl req -out CSR.csr -new -newkey rsa:2048 -nodes -keyout privateKey.key

openssl x509 -x509toreq -in certificate.crt -out CSR.csr -signkey privateKey.key

openssl req -text -noout -verify -in CSR.csr

openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout privateKey.key -out certificate.crt

openssl x509 -in certificate.crt -text -noout

openssl x509 -inform der -in certificate.cer -out certificate.pem

openssl s_client -connect www.paypal.com:443

openssl rsa -in privateKey.pem -out newPrivateKey.pem

openssl rsa -in privateKey.key -check

openssl pkcs12 -info -in keyStore.p12

openssl pkcs12 -in keyStore.pfx -out keyStore.pem -nodes

openssl x509 -outform der -in certificate.pem -out certificate.der

openssl pkcs12 -export -out certificate.pfx -inkey privateKey.key -in certificate.crt -certfile CACert.crt

openssl x509 -noout -modulus -in certificate.crt | openssl md5

openssl req -noout -modulus -in CSR.csr | openssl md5

openssl rsa -noout -modulus -in privateKey.key | openssl md5

openssl enc -base64 <<< "Hello, World!"
openssl base64 -in <infile> -out <outfile>

openssl enc -base64 -d <<< SGVsbG8sIFdvcmxkIQo=
openssl base64 -d -in <infile> -out <outfile>

openssl rand -base64 10
openssl rand -hex 10

openssl list-cipher-algorithms