下载文件安全性验证

sudo apt-get install gnupg

gpg --gen-key

gpg --verify electrum-3.2.2-portable.exe.asc electrum-3.2.2-portable.exe

gpg: Signature made 2018年07月02日 星期一 15时12分09秒 CST using RSA key ID 7F9470E6

gpg: Can't check signature: public key not found

gpg --search-keys 7F9470E6

gpg: no keyserver known (use option --keyserver)

gpg: keyserver search failed: bad URI

sudo gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 7F9470E6

gpg --verify electrum-3.2.2-portable.exe.asc electrum-3.2.2-portable.exe