mac 生成支付宝的rsa公钥和私钥 php版本
openssl genrsa -out rsa_private_key.pem 1024 公钥
openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem 私钥
openssl genrsa -out rsa_private_key.pem 1024 公钥
openssl rsa -in rsa_private_key.pem -pubout -out rsa_public_key.pem 私钥