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Martin Hope
Plup
Asked: 2022-06-04 08:14:06 +0800 CST
  • 6

我创建了一组经典的身份验证、签名和加密子密钥gpg，然后将它们移动到智能卡 [ledger nano S] 中，这似乎工作正常，因为我可以看到三个子密钥：

$ gpg --card-status

  Serial number ....: 00000000
  Signature key ....: F34F 66B8 5D18 A8BC CDD4  C909 4705 D74B 9E2F EFFC
  Encryption key....: AD71 E2C1 2E41 C870 3192  D997 78B9 F3F6 7D9B 47DC
  Authentication key: D644 70D8 88AB BA93 F9F4  BFE0 2726 E1C4 E4DB E4C3

我是如何降落在那里的

基本信息：

$ gpg --version
gpg (GnuPG) 2.2.27
libgcrypt 1.8.8

生成加密、签名和认证子密钥：

$ gpg --expert --edit-key Plup*
gpg> addkey
  type: ECC (sign only)
  curve: cv25519
  Please unlock the card

gpg> addkey
  type: ECC (encrypt only)
  curve: cv25519

gpg> addkey
  type: ECC (set your own capabilities)
  allowed actions: Authenticate
  curve: cv25519

gpg> save

检查子项：

$ gpg -K Plup*
sec>  ed25519 2022-06-03 [SC]
      394ED8F3BA05CF4E7866D54657EEBF4BCFF5BFCD
      Card serial no. = 2C97 11BFF50F
uid           [ultimate] Plup* <[email protected]>
ssb   ed25519 2022-06-03 [S]
ssb   cv25519 2022-06-03 [E]
ssb   ed25519 2022-06-03 [A]

将子密钥移动到新的智能卡插槽（/!\确保不覆盖主密钥）：

$ gpg --card-status
Reader ...........: Ledger Nano S [Nano S] (0001) 00 00
Serial number ....: 7AC3CFF8
Signature key ....: [none]

$ gpg --edit-key Plup*
gpg> key 1
gpg> keytocard
    Signature key
    Passphrase:
    Please entre the Admin PIN
    Number: 2C97 7AC3CFF8

gpg> key 1
gpg> key 2
gpg> keytocard
    Encryption key
    Passphrase:

gpg> key 2
gpg> key 3
gpg> keytocard
    Authentication key
    Passphrase:

gpg> save

我现在遇到的问题

指纹与密钥环看到的相匹配，但由于某种我不明白的原因，加密密钥存根没有到位，并且私有子密钥仍然存在于计算机密钥环中。解密时它仍然要求输入密码而不是智能卡 PIN：

```
$ gpg --with-keygrip --with-subkey-fingerprints -K Plup*

  sec>  ed25519 2022-06-03 [SC]
        394ED8F3BA05CF4E7866D54657EEBF4BCFF5BFCD
        Keygrip = 27D911732841CDB06B3CDFA100DDE95DF420B92E
        Card serial no. = 2C97 11BFF50F
  uid           [ultimate] Plup* <[email protected]>
  ssb>  ed25519 2022-06-03 [S]
        F34F66B85D18A8BCCDD4C9094705D74B9E2FEFFC
        Card serial no. = 2C97 7AC3CFF8
        Keygrip = AF76C5E4B1DA101E0F3AFEDDDED6276C4D011261
  ssb   cv25519 2022-06-03 [E]
        AD71E2C12E41C8703192D99778B9F3F67D9B47DC
        Keygrip = E6D65814CBE230A21001F36BD2BC232E6B7251ED
  ssb>  ed25519 2022-06-03 [A]
        D64470D888ABBA93F9F4BFE02726E1C4E4DBE4C3
        Card serial no. = 2C97 7AC3CFF8
        Keygrip = 511C8CAAC3A7B8A2DAD4B3E6A512A7F160A02CD5
```

到目前为止我尝试过的

  • 我试图删除私钥并且不能强制存根创建自己：

    ssb#  cv25519/78B9F3F67D9B47DC  created: 2022-06-03  expires: never

  • 在调试中启动向我显示了一个错误的键握把（删除后它继续创建相同的键）：

2022-06-06 12:47:44 gpg-agent[12064]           id: OPENPGP.2    (grip=C74F8FF13CB491D0C98497C6B77A49FCB156F7E5)
2022-06-06 12:47:44 gpg-agent[12064] DBG: chan_11 -> READKEY OPENPGP.2
2022-06-06 12:47:44 gpg-agent[12064] DBG: chan_11 <- [ 44 20 28 31 30 3a 70 75 62 6c 69 63 2d 6b 65 79 ...(91 byte(s) skipped) ]
2022-06-06 12:47:44 gpg-agent[12064] DBG: chan_11 <- OK
2022-06-06 12:47:44 gpg-agent[12064]           id: OPENPGP.2 - shadow key created

确认：

$ gpg-connect-agent 'keyinfo --list' /bye | grep D2760001240103032C977AC3CFF80000

  S KEYINFO 705790B1A7609806F633BCCB212784031E42017E T D2760001240103032C977AC3CFF80000 OPENPGP.1 - - - - -
  S KEYINFO AF76C5E4B1DA101E0F3AFEDDDED6276C4D011261 T D2760001240103032C977AC3CFF80000 OPENPGP.1 - - - - -
  S KEYINFO C74F8FF13CB491D0C98497C6B77A49FCB156F7E5 T D2760001240103032C977AC3CFF80000 OPENPGP.2 - - - - -
  S KEYINFO 511C8CAAC3A7B8A2DAD4B3E6A512A7F160A02CD5 T D2760001240103032C977AC3CFF80000 OPENPGP.3 - - - - -
  • 我试图用相同的曲线重新创建一个新的加密子密钥，但keytocard仍然表现相同：它没有错误地完成，但密钥（下面的新手柄）没有移动：
$ gpg-connect-agent 'keyinfo --list' /bye | grep 5CF6DF65EF080B01F774BCC7F8063814CE5DAEF6
S KEYINFO 5CF6DF65EF080B01F774BCC7F8063814CE5DAEF6 D - - - P - - -
gnupg encryption