get public key from smart card OpenPGP smart cards do not store enough information to reconstruct a full OpenPGP public key. You must import the public key separately -- sharing it on a key servers is one solution, but you can also gpg --export the key and later gpg --import it again for testing. NFC fraud can be prevented by taking some simple steps to protect your data. The most important thing is to make sure that you have a strong password that only you know and make . See more
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1 · gpg
2 · Using SSH Public Key Authentication with a Smart
3 · Smart card authentication with SSH
4 · Smart Card Logon for SSH
5 · Quick GPG Smartcard Guide · GitHub
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OpenPGP smart cards do not store enough information to reconstruct a full OpenPGP public key. You must import the public key separately -- sharing it on a key servers is one solution, but you can also gpg --export the key and later gpg --import it again for testing. The idea is simple: Public Key Authentication for SSH is well documented, I just want my private key to live on my hardware token instead of being a file on my hard drive. OpenPGP smart cards do not store enough information to reconstruct a full OpenPGP public key. You must import the public key separately -- sharing it on a key servers is one solution, but you can also gpg --export the key and later gpg --import it again for testing.
The idea is simple: Public Key Authentication for SSH is well documented, I just want my private key to live on my hardware token instead of being a file on my hard drive. Consider I've generated an RSA key pair to sign and verify patches of a product, and I backed up them in a safe environment and injected them in a smartcard#1. Then I imported the smart-card resident keys to gpg. In the product, I use the corresponding public key to verify the product patches. The middle section arrows are APDU commands that need to be send to the card, and the right section is the smart card. PK means public key. CA means certificate authority. If you do not know the public keys, you see you need to get both the card and the CA certificate. In this article we have covered the basics of Certificate-Based Authentication (CBA) using a smart card or a YubiKey (as a smart card). We have learned that CBA uses a certificate describing the user and that this certificate bundles a public key.
If you need to find a way to do certificate (and thus public-private key pair) authentication without your smart card, then you'd need a way to extract not only the cert, but also the matching private key, from the card, and install them as a matched set onto whatever other system you need them on.
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Make sure to load your public key into GPG and then link your keys to the smart card. $ gpg --import << public.key $ gpg --card-status GPGTools has very nice integration with Mail.App and everything just works. Add the following to your .bashrc or .zshrc to pull in the gpg-agent environment variables when you open new terminals. This is .Retrieve public key from card Public key or certificate is available on smart card. You can list public keys on the card directly using ssh-keygen. There is -D switch for a shared library, which handles smart card communication. If you added a URL to the public key in the dedicated smart card space the --fetch-keys option can fetch that public key to your computer (or using the fetch option in the interactive gpg menu) and you should be good. gpg2 --card-status creates the stub but the public key should be imported beforehand. – Kate.Extract the user’s public key from the smart card on the SSH client. Use sshkeygen to read the public key from the smart card and into a format consumable for SSH. ssh-keygen -D /usr/lib/x86_64-linux-gnu/opensc-pkcs11.so > smartcard.pub
OpenPGP smart cards do not store enough information to reconstruct a full OpenPGP public key. You must import the public key separately -- sharing it on a key servers is one solution, but you can also gpg --export the key and later gpg --import it again for testing.
gpg
The idea is simple: Public Key Authentication for SSH is well documented, I just want my private key to live on my hardware token instead of being a file on my hard drive. Consider I've generated an RSA key pair to sign and verify patches of a product, and I backed up them in a safe environment and injected them in a smartcard#1. Then I imported the smart-card resident keys to gpg. In the product, I use the corresponding public key to verify the product patches.
The middle section arrows are APDU commands that need to be send to the card, and the right section is the smart card. PK means public key. CA means certificate authority. If you do not know the public keys, you see you need to get both the card and the CA certificate.
In this article we have covered the basics of Certificate-Based Authentication (CBA) using a smart card or a YubiKey (as a smart card). We have learned that CBA uses a certificate describing the user and that this certificate bundles a public key. If you need to find a way to do certificate (and thus public-private key pair) authentication without your smart card, then you'd need a way to extract not only the cert, but also the matching private key, from the card, and install them as a matched set onto whatever other system you need them on.
Make sure to load your public key into GPG and then link your keys to the smart card. $ gpg --import << public.key $ gpg --card-status GPGTools has very nice integration with Mail.App and everything just works. Add the following to your .bashrc or .zshrc to pull in the gpg-agent environment variables when you open new terminals. This is .Retrieve public key from card Public key or certificate is available on smart card. You can list public keys on the card directly using ssh-keygen. There is -D switch for a shared library, which handles smart card communication. If you added a URL to the public key in the dedicated smart card space the --fetch-keys option can fetch that public key to your computer (or using the fetch option in the interactive gpg menu) and you should be good. gpg2 --card-status creates the stub but the public key should be imported beforehand. – Kate.
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Using SSH Public Key Authentication with a Smart
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get public key from smart card|Smart Card Logon for SSH