GPG签名
测试加密文本
echo 1234 | gpg -as -
测试解密文本
echo "-----BEGIN PGP MESSAGE-----
owGbwMvMwCUWu3NJ6vO2iM2Mp7mTGDLnP+ExNDI24eooZWEQ42KQFVNkuSqiUrB2
w6u1+W/y9sEUszKBVDJwcQrARO6vYvhfv1AjwbimvjPlV4u6+/EJAVnCe929/s/8
tGbrsjkf4iTvMjJ0H3KQTTOKN1zhKuq4Va2c4+fEepPsguXrov25vi5YoMcMAA==
=cBuS
-----END PGP MESSAGE-----" | gpg -d -
echo 1234 | gpg -as - | gpg -d -