为Android创建签名

添加密钥库
/home/kuangke/.jdks/jdk1.8.0_181/bin/keytool -genkey -alias yueganxingqiu -keyalg RSA -validity 36000 -keystore yueganxingqiu.keystore

查看密钥库
/home/kuangke/.jdks/jdk1.8.0_181/bin/keytool -list -v -keystore yueganxingqiu.keystore

从密钥库导出证书
/home/kuangke/.jdks/jdk1.8.0_181/bin/keytool -exportcert -alias yueganxingqiu -file yueganxingqiu.cer -keystore yueganxingqiu.keystore

导出公钥
openssl x509 -pubkey -noout -in yueganxingqiu.cer > public_key.pem