暗号文を送るにはこの余白はちょっと小さすぎた
$ echo Hello, World | gpg -e -r zundan@gmail.com -a
-----BEGIN PGP MESSAGE-----
hQEMAxZpRf2ocin+AQf/VRrdRu1JjcYDWsjzJFuMh/bD3SdXKPCqwrqVoSD+qkEo
Lkv1DZ3WUB+oHjelqhi0qoNNs119dEc1RsEsTOAXbEmKrD0snBFc7idfKvrzr6Ap
a+Cg2naKRKoGOZVAToUDPLBsjTgHMBq4aqAX2kv2+vx8Lar3CFzxE/gW+FMhfRv7
IFo80A8yK++faD7yA945s4aIvYzSKH02ZfKqK+524x7e11R4d0MUn8wfdkkAcTwT
qdFcPp9xkaqpZZN0vzqj9s4KdKUXgCm8EQqJJTJ7qhnNH0m5DlR0Fm8VW0C9Me1G
L5stFB5wdLxoTsKqpYNKiB73yHQP+87ax7iqzoL8WNJIASEtV1OGP6lUtBcwRSK6
1NULQuZdVkgo+h+WJzMl0ud0nr6NIlWYezjt+2+4B4ACg4NVgQA1FtKPX9IQWOug
AMfy+QONipny
=DEhm
-----END PGP MESSAGE-----
私有鍵のない方に送ってるし
$ echo Hello, World | gpg -e -r zundan@gmail.com -a | gpg -d
gpg: encrypted with 2048-bit RSA key, ID 166945FDA87229FE, created 2017-03-13
"zunda <zundan@gmail.com>"
gpg: decryption failed: No secret key
$ echo Hello, World | gpg -e -r F60960D80B224382CA8D831CB56C20316D6E8279 -a | gpg -d
gpg: encrypted with 3072-bit RSA key, ID 164F21FF001C8CD1, created 2020-06-24
"zunda <zundan@gmail.com>"
Hello, World
うし