MAC 產 RSA 公私鑰

//進去
openssl
//產私鑰
genrsa -out rsa_private_key.pem 1024

//轉PEM
pkcs8 -topk8 -inform PEM -in rsa_private_key.pem -outform PEM –nocrypt

//產對應公鑰
rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem