Ste*_*ios 9 security gnupg public-key-encryption
我正在研究一个用例，其中使用OpenPGP在智能卡（Yubikey）上生成公钥对。
然后将智能卡运送给用户。尝试在本地模拟此操作，正在执行以下操作：
问题是执行上述步骤后我无法测试加密文件，因为公钥似乎丢失了。 fetch似乎不起作用。
在此阶段，我不想在任何联机服务器上共享公钥。删除密钥环后，有什么方法可以从智能卡中检索公钥？
以下是要执行的步骤：
$ gpg --card-edit
Reader ...........: 1050:0404:X:0
Application ID ...: D2760001240102010006046314290000
Version ..........: 2.1
Manufacturer .....: Yubico
Serial number ....: 04631429
Name of cardholder: sm sm
Language prefs ...: en
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: sm
Signature PIN ....: not forced
Key attributes ...: rsa4096 rsa4096 rsa4096
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 0 3
Signature counter : 0
Signature key ....: 54D4 E469 7056 B390 AE72 CAA1 A507 3320 7876 0302
created ....: 2017-10-11 13:16:52
Encryption key....: ADA3 2D7F 8D66 4F34 C04A 457C DFEB E3E4 A8F1 8611
created ....: 2017-10-11 11:14:18
Authentication key: 18B9 7AB4 0723 46F4 C23A 3DD7 E5C0 6A93 049E F6A8
created ....: 2017-10-11 11:14:18
General key info..: [none]
gpg/card> admin
Admin commands are allowed
gpg/card> generate
Make off-card backup of encryption key? (Y/n) n
gpg: Note: keys are already stored on the card!
Replace existing keys? (y/N) y
What keysize do you want for the Signature key? (4096)
What keysize do you want for the Encryption key? (4096)
What keysize do you want for the Authentication key? (4096)
Key is valid for? (0) 0
Is this correct? (y/N) y
Real name: john doe
Email address: john.doe@foobar.com
Comment:
You selected this USER-ID:
"john doe <<john.doe@foobar.com>"
Change (N)ame, (C)omment, (E)mail or (O)kay/(Q)uit? o
gpg: /home/xxx/.gnupg/trustdb.gpg: trustdb created
gpg: key 6825CB0EBDA94110 marked as ultimately trusted
gpg: directory '/home/xxx/.gnupg/openpgp-revocs.d' created
gpg: revocation certificate stored as '/home/xxx/.gnupg/openpgp-revocs.d/6858F119E93FB74BB561DE556825CB0EBDA94110.rev'
public and secret key created and signed.
gpg/card> list
Reader ...........: 1050:0404:X:0
Application ID ...: D2760001240102010006046314290000
Version ..........: 2.1
Manufacturer .....: Yubico
Serial number ....: 04631429
Name of cardholder: sm sm
Language prefs ...: en
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: sm
Signature PIN ....: not forced
Key attributes ...: rsa4096 rsa4096 rsa4096
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 0 3
Signature counter : 4
Signature key ....: 6858 F119 E93F B74B B561 DE55 6825 CB0E BDA9 4110
created ....: 2017-10-11 13:18:11
Encryption key....: BE05 7FDF 9ACD 05F0 B75A 570F 4711 4B69 A622 C1DC
created ....: 2017-10-11 13:18:11
Authentication key: 7275 2C47 B1EF BFB5 1E6D 0E65 31C7 7DBE 2D22 7E32
created ....: 2017-10-11 13:18:11
General key info..: pub rsa4096/6825CB0EBDA94110 2017-10-11 john doe <<john.doe@foobar.com>
sec> rsa4096/6825CB0EBDA94110 created: 2017-10-11 expires: never
card-no: 0006 04631429
ssb> rsa4096/31C77DBE2D227E32 created: 2017-10-11 expires: never
card-no: 0006 04631429
ssb> rsa4096/47114B69A622C1DC created: 2017-10-11 expires: never
card-no: 0006 04631429
gpg/card> quit
$ rm -rf .gnupg/
$ gpg --card-status
gpg: directory '/home/smalatho/.gnupg' created
gpg: new configuration file '/home/smalatho/.gnupg/dirmngr.conf' created
gpg: new configuration file '/home/smalatho/.gnupg/gpg.conf' created
gpg: keybox '/home/smalatho/.gnupg/pubring.kbx' created
Reader ...........: 1050:0404:X:0
Application ID ...: D2760001240102010006046314290000
Version ..........: 2.1
Manufacturer .....: Yubico
Serial number ....: 04631429
Name of cardholder: sm sm
Language prefs ...: en
Sex ..............: unspecified
URL of public key : [not set]
Login data .......: sm
Signature PIN ....: not forced
Key attributes ...: rsa4096 rsa4096 rsa4096
Max. PIN lengths .: 127 127 127
PIN retry counter : 3 0 3
Signature counter : 4
Signature key ....: 6858 F119 E93F B74B B561 DE55 6825 CB0E BDA9 4110
created ....: 2017-10-11 13:18:11
Encryption key....: BE05 7FDF 9ACD 05F0 B75A 570F 4711 4B69 A622 C1DC
created ....: 2017-10-11 13:18:11
Authentication key: 7275 2C47 B1EF BFB5 1E6D 0E65 31C7 7DBE 2D22 7E32
created ....: 2017-10-11 13:18:11
General key info..: [none]
OpenPGP智能卡存储的信息不足，无法重建完整的OpenPGP公钥。您必须单独导入公共密钥-在密钥服务器上共享它是一种解决方案，但是您也可以添加gpg --export密钥，gpg --import然后再对其进行测试。