Openssl
개인키 생성
genrsa -out private.key 1024
공개키 생성
openssl rsa -in private.key -out public.key -pubout -outform derwriting
PEM포맷으로 생성
openssl rsa -in private.key -out public.key -pubout
genrsa -out private.key 1024
openssl rsa -in private.key -out public.key -pubout -outform derwriting
openssl rsa -in private.key -out public.key -pubout