From 41f3cce9f071b79694d72ecdea79fd14bbf4f0ed Mon Sep 17 00:00:00 2001 From: drduh Date: Sun, 15 Oct 2023 20:50:42 -0700 Subject: [PATCH] Remove ancient keyservers --- README.md | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/README.md b/README.md index 84b4376..28c784b 100644 --- a/README.md +++ b/README.md @@ -2,12 +2,12 @@ This is a guide to using [YubiKey](https://www.yubico.com/products/yubikey-hardw Keys stored on YubiKey are [non-exportable](http://web.archive.org/web/20201125172759/https://support.yubico.com/hc/en-us/articles/360016614880-Can-I-Duplicate-or-Back-Up-a-YubiKey-) (as opposed to file-based keys that are stored on disk) and are convenient for everyday use. Instead of having to remember and enter passphrases to unlock SSH/GPG keys, YubiKey needs only a physical touch after being unlocked with a PIN. All signing and encryption operations happen on the card, rather than in OS memory. -**Tip** [drduh/Purse](https://github.com/drduh/Purse) is a password manager which uses GPG and YubiKey to securely store and read credentials. - -> **Security Note**: If you followed this guide before Jan 2021, your GPG *PIN* and *Admin PIN* may be set to their default values (`123456` and `12345678` respectively). This would allow an attacker to use your Yubikey or reset your PIN. Please see the [Change PIN](#change-pin) section for details on how to change your PINs. +**Security Note**: If you followed this guide before Jan 2021, your GPG *PIN* and *Admin PIN* may be set to their default values (`123456` and `12345678` respectively). This would allow an attacker to use your Yubikey or reset your PIN. Please see the [Change PIN](#change-pin) section for details on how to change your PINs. If you have a comment or suggestion, please open an [Issue](https://github.com/drduh/YubiKey-Guide/issues) on GitHub. +**Tip** [drduh/Purse](https://github.com/drduh/Purse) is a password manager which uses GPG and YubiKey to securely store and read credentials. + - [Purchase](#purchase) - [Prepare environment](#prepare-environment) - [Required software](#required-software) @@ -602,6 +602,7 @@ charset utf-8 fixed-list-mode no-comments no-emit-version +no-greeting keyid-format 0xlong list-options show-uid-validity verify-options show-uid-validity @@ -612,7 +613,7 @@ use-agent throw-keyids ``` -**Important** Disable networking for the remainder of the setup. +**Tip** Networking can be disabled for the remainder of the setup. # Master key @@ -646,7 +647,6 @@ Do **not** set the master (certify) key to expire - see [Note #3](#notes). ```console $ gpg --expert --full-generate-key - Please select what kind of key you want: (1) RSA and RSA (default) (2) DSA and Elgamal @@ -658,6 +658,7 @@ Please select what kind of key you want: (10) ECC (sign only) (11) ECC (set your own capabilities) (13) Existing key + (14) Existing key from card Your selection? 8 Possible actions for a RSA key: Sign Certify Encrypt Authenticate @@ -1408,14 +1409,16 @@ $ gpg -o \path\to\dir\pubkey.gpg --armor --export $KEYID ```console $ gpg --send-key $KEYID -$ gpg --keyserver pgp.mit.edu --send-key $KEYID - $ gpg --keyserver keys.gnupg.net --send-key $KEYID $ gpg --keyserver hkps://keyserver.ubuntu.com:443 --send-key $KEYID ``` -After some time, the public key will propagate to [other](https://pgp.key-server.io/pks/lookup?search=doc%40duh.to&fingerprint=on&op=vindex) [servers](https://pgp.mit.edu/pks/lookup?search=doc%40duh.to&op=index). +Or if [uploading to keys.openpgp.org](https://keys.openpgp.org/about/usage): + +```console +gpg --send-key $KEYID | curl -T - https://keys.openpgp.org +``` # Configure Smartcard @@ -2321,8 +2324,6 @@ $ gpg --import pubkey.asc N.B.: The `showpref` command can be issued to ensure that the notions were correctly added. -It is now possible to continue following the Keyoxide guide and upload the key to WKD or to keys.openpgp.org. - # SSH **Tip** If you want to use a YubiKey for SSH only (and don't really care about PGP/GPG), then [since OpenSSH v8.2](https://www.openssh.com/txt/release-8.2) you alternatively can simply `ssh-keygen -t ed25519-sk` (without requiring anything else from this guide!), as explained [in this guide](https://github.com/vorburger/vorburger.ch-Notes/blob/develop/security/ed25519-sk.md). Yubico also recently announced support for resident ssh keys under OpenSSH 8.2+ on their blue "security key 5 nfc" as mentioned in their [blog post](https://www.yubico.com/blog/github-now-supports-ssh-security-keys/)._