生成密钥对/CSR证书请求/自签名证书
Algorithm：
ECC(P-256)
ECC(P-384) - 推荐
ECC(P-521)
RSA(2048)
RSA(4096)
CommonName：
More Subject Options
Organization：
OrganizationUint：
Country：
State：
Locality：
Street：
Days：
30
90
180
365
3650
KeyUsage：
DigitalSignature
NonRepudiation
KeyEncipherment
DataEncipherment
KeyAgreement
KeyCertSign
(CA Required)
CrlSign
EncipherOnly
DecipherOnly
ExtendedKeyUsage：
ServerAuth
ClientAuth
CodeSigning
EmailProtection
IpsecEndSystem
IpsecTunnel
IpsecUser
TimeStamping
OCSPSigning
Wireless
SignAsCA：
SignAsCA
SubjectAltNames：
your-domain.com *.your-domain.com