我正在尝试在 Erlang 中做一些与公钥相关的事情，它们要求我跟踪公钥。根据这一页 http://www.erlang.org/doc/apps/public_key/using_public_key.html#id61611，我应该能够通过使用导入 PEM 格式密钥file:read_file/1 and public_key:decode_pem/1。问题是，当我尝试导入 GPG 公钥时，我没有得到结果。
我有一个名为inaimathi.pubkey包含以下内容：
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.11 (GNU/Linux)
mQINBE9NBIQBEADMSzN6b0FaPP0rGiLDWKfH4ehN66Z0SAIynXm6lBHjmO69pNsm
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5NsttvIOclBY5A==
=Zqph
-----END PGP PUBLIC KEY BLOCK-----
这似乎是正确的格式，但我得到的结果是
1> {ok, GpgBin} = file:read("inaimathi.pubkey").
{ok,<<"-----BEGIN PGP PUBLIC KEY BLOCK-----\nVersion: GnuPG v1.4.11 (GNU/Linux)\n\nmQINBE9NBIQBEADMSzN6b0FaPP0rGiLDWKf"...>>}
2> public_key:pem_decode(GpgBin).
[]
根据文档，我希望这会返回RSAEntry然后我可以将其解码为公钥。通过此机制导入公钥是否需要做一些特殊的事情？ GPG 密钥实际上是有效的 PEM 文件吗？我还缺少其他东西吗？
ASCII-armored 和 PEM 非常相似。您只需要更改 BEGIN/END 标记，去掉 PGP 标头和校验和（校验和是最后一行=Zqph），并添加 PEM 标头。所以，你必须改变inaimathi.pubkey到这个文件：
-----BEGIN RSA PUBLIC KEY-----
mQINBE9NBIQBEADMSzN6b0FaPP0rGiLDWKfH4ehN66Z0SAIynXm6lBHjmO69pNsm
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5NsttvIOclBY5A==
-----END RSA PUBLIC KEY-----
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