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initramfs_ykfde

an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response

this script is meant as inspirational guideline on how one could realize full disk encryption using a yubikey and the challenge response feature supported by yubikeys after version 2.2 (http://www.yubico.com/challenge-response)

Features of this script:

  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the challenge response from the yubikey.

you will need (in your initramfs and in your system)

  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:

your system boots into initramfs and runs 'init' (this script), your kernel has to deliver all dependencies, as this script is very basic. it further requests the challenge, stored on boot (on /boot/crypt-challenge) and combines the response with a usergiven password (that you have to provide) after unlocking your partitions it generates a new challenge, saves it to the beforementioned file and sets the new combination of user password and response as new password on slot "3" of the luks header. the new password is temporaly written to /newroot/root/key which is assumed to be on your encrypted device.

init

to initialize your crypt device to work with this script do the following: we will use slot 3 for the challenge response key, you can change that to any available slot.

$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)

$ mount /boot

$ uuidgen > /boot/crypt-challenge

$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key

we assume that ~/key is located on your encrypted partition, otherwise this might be a security risk!

$ vi ~/key (add a userpassword in front of the string)

you will type in this password in at every bootup, the script will combine your passphrase and the yubikey response.

$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key

$ rm ~/key

About

an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response

Resources

Readme
Activity

Stars

33 stars

Watchers

4 watching

Forks

1 fork
Report repository

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initramfs_ykfde
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
this script is meant as inspirational guideline on how one could realize
full disk encryption using a yubikey and the challenge response feature
supported by yubikeys after version 2.2
(http://www.yubico.com/challenge-response)
Features of this script:
  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the
challenge response from the yubikey.
you will need (in your initramfs and in your system)
  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:
your system boots into initramfs and runs 'init' (this script), your kernel
has to deliver all dependencies, as this script is very basic.
it further requests the challenge, stored on boot (on /boot/crypt-challenge)
and combines the response with a usergiven password (that you have to provide)
after unlocking your partitions it generates a new challenge, saves it to the
beforementioned file and sets the new combination of user password and
response as new password on slot "3" of the luks header. the new password is
temporaly written to /newroot/root/key which is assumed to be on your
encrypted device.
init
to initialize your crypt device to work with this script do the following:
we will use slot 3 for the challenge response key, you can change that to any
available slot.
$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)
$ mount /boot
$ uuidgen > /boot/crypt-challenge
$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key
we assume that ~/key is located on your encrypted partition, otherwise this
might be a security risk!
$ vi ~/key (add a userpassword in front of the string)
you will type in this password in at every bootup, the script will combine
your passphrase and the yubikey response.
$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key
$ rm ~/key
About
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
Resources
Readme
Activity
Stars
33 stars
Watchers
4 watching
Forks
1 fork
Report repository
Releases
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Contributors
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GitHub - flowolf/initramfs_ykfde: an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response · GitHub
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initramfs_ykfde
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
this script is meant as inspirational guideline on how one could realize
full disk encryption using a yubikey and the challenge response feature
supported by yubikeys after version 2.2
(http://www.yubico.com/challenge-response)
Features of this script:
  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the
challenge response from the yubikey.
you will need (in your initramfs and in your system)
  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:
your system boots into initramfs and runs 'init' (this script), your kernel
has to deliver all dependencies, as this script is very basic.
it further requests the challenge, stored on boot (on /boot/crypt-challenge)
and combines the response with a usergiven password (that you have to provide)
after unlocking your partitions it generates a new challenge, saves it to the
beforementioned file and sets the new combination of user password and
response as new password on slot "3" of the luks header. the new password is
temporaly written to /newroot/root/key which is assumed to be on your
encrypted device.
init
to initialize your crypt device to work with this script do the following:
we will use slot 3 for the challenge response key, you can change that to any
available slot.
$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)
$ mount /boot
$ uuidgen > /boot/crypt-challenge
$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key
we assume that ~/key is located on your encrypted partition, otherwise this
might be a security risk!
$ vi ~/key (add a userpassword in front of the string)
you will type in this password in at every bootup, the script will combine
your passphrase and the yubikey response.
$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key
$ rm ~/key
About
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
Resources
Readme
Activity
Stars
33 stars
Watchers
4 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
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GitHub - flowolf/initramfs_ykfde: an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response · GitHub
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initramfs_ykfde
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
this script is meant as inspirational guideline on how one could realize
full disk encryption using a yubikey and the challenge response feature
supported by yubikeys after version 2.2
(http://www.yubico.com/challenge-response)
Features of this script:
  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the
challenge response from the yubikey.
you will need (in your initramfs and in your system)
  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:
your system boots into initramfs and runs 'init' (this script), your kernel
has to deliver all dependencies, as this script is very basic.
it further requests the challenge, stored on boot (on /boot/crypt-challenge)
and combines the response with a usergiven password (that you have to provide)
after unlocking your partitions it generates a new challenge, saves it to the
beforementioned file and sets the new combination of user password and
response as new password on slot "3" of the luks header. the new password is
temporaly written to /newroot/root/key which is assumed to be on your
encrypted device.
init
to initialize your crypt device to work with this script do the following:
we will use slot 3 for the challenge response key, you can change that to any
available slot.
$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)
$ mount /boot
$ uuidgen > /boot/crypt-challenge
$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key
we assume that ~/key is located on your encrypted partition, otherwise this
might be a security risk!
$ vi ~/key (add a userpassword in front of the string)
you will type in this password in at every bootup, the script will combine
your passphrase and the yubikey response.
$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key
$ rm ~/key
About
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
Resources
Readme
Activity
Stars
33 stars
Watchers
4 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
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GitHub - flowolf/initramfs_ykfde: an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response · GitHub
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initramfs_ykfde
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
this script is meant as inspirational guideline on how one could realize
full disk encryption using a yubikey and the challenge response feature
supported by yubikeys after version 2.2
(http://www.yubico.com/challenge-response)
Features of this script:
  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the
challenge response from the yubikey.
you will need (in your initramfs and in your system)
  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:
your system boots into initramfs and runs 'init' (this script), your kernel
has to deliver all dependencies, as this script is very basic.
it further requests the challenge, stored on boot (on /boot/crypt-challenge)
and combines the response with a usergiven password (that you have to provide)
after unlocking your partitions it generates a new challenge, saves it to the
beforementioned file and sets the new combination of user password and
response as new password on slot "3" of the luks header. the new password is
temporaly written to /newroot/root/key which is assumed to be on your
encrypted device.
init
to initialize your crypt device to work with this script do the following:
we will use slot 3 for the challenge response key, you can change that to any
available slot.
$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)
$ mount /boot
$ uuidgen > /boot/crypt-challenge
$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key
we assume that ~/key is located on your encrypted partition, otherwise this
might be a security risk!
$ vi ~/key (add a userpassword in front of the string)
you will type in this password in at every bootup, the script will combine
your passphrase and the yubikey response.
$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key
$ rm ~/key
About
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
Resources
Readme
Activity
Stars
33 stars
Watchers
4 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
Languages

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GitHub - flowolf/initramfs_ykfde: an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response · GitHub
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initramfs_ykfde
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
this script is meant as inspirational guideline on how one could realize
full disk encryption using a yubikey and the challenge response feature
supported by yubikeys after version 2.2
(http://www.yubico.com/challenge-response)
Features of this script:
  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the
challenge response from the yubikey.
you will need (in your initramfs and in your system)
  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:
your system boots into initramfs and runs 'init' (this script), your kernel
has to deliver all dependencies, as this script is very basic.
it further requests the challenge, stored on boot (on /boot/crypt-challenge)
and combines the response with a usergiven password (that you have to provide)
after unlocking your partitions it generates a new challenge, saves it to the
beforementioned file and sets the new combination of user password and
response as new password on slot "3" of the luks header. the new password is
temporaly written to /newroot/root/key which is assumed to be on your
encrypted device.
init
to initialize your crypt device to work with this script do the following:
we will use slot 3 for the challenge response key, you can change that to any
available slot.
$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)
$ mount /boot
$ uuidgen > /boot/crypt-challenge
$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key
we assume that ~/key is located on your encrypted partition, otherwise this
might be a security risk!
$ vi ~/key (add a userpassword in front of the string)
you will type in this password in at every bootup, the script will combine
your passphrase and the yubikey response.
$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key
$ rm ~/key
About
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
Resources
Readme
Activity
Stars
33 stars
Watchers
4 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
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GitHub - flowolf/initramfs_ykfde: an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response · GitHub
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initramfs_ykfde
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
this script is meant as inspirational guideline on how one could realize
full disk encryption using a yubikey and the challenge response feature
supported by yubikeys after version 2.2
(http://www.yubico.com/challenge-response)
Features of this script:
  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the
challenge response from the yubikey.
you will need (in your initramfs and in your system)
  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:
your system boots into initramfs and runs 'init' (this script), your kernel
has to deliver all dependencies, as this script is very basic.
it further requests the challenge, stored on boot (on /boot/crypt-challenge)
and combines the response with a usergiven password (that you have to provide)
after unlocking your partitions it generates a new challenge, saves it to the
beforementioned file and sets the new combination of user password and
response as new password on slot "3" of the luks header. the new password is
temporaly written to /newroot/root/key which is assumed to be on your
encrypted device.
init
to initialize your crypt device to work with this script do the following:
we will use slot 3 for the challenge response key, you can change that to any
available slot.
$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)
$ mount /boot
$ uuidgen > /boot/crypt-challenge
$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key
we assume that ~/key is located on your encrypted partition, otherwise this
might be a security risk!
$ vi ~/key (add a userpassword in front of the string)
you will type in this password in at every bootup, the script will combine
your passphrase and the yubikey response.
$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key
$ rm ~/key
About
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
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filter: invert(1) hue-rotate(180deg) !important;
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filter: none !important;
}
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filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
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}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
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GitHub - flowolf/initramfs_ykfde: an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response · GitHub
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initramfs_ykfde
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
this script is meant as inspirational guideline on how one could realize
full disk encryption using a yubikey and the challenge response feature
supported by yubikeys after version 2.2
(http://www.yubico.com/challenge-response)
Features of this script:
  • it is capable of using the yubikey challenge response to generate a password
  • it generates a new key on every bootup. (the challenge is changed)
  • it supports yubikey's slot 1 or 2
  • it supports two factor authentication (combining a user password and the
challenge response from the yubikey.
you will need (in your initramfs and in your system)
  •  ykchalresp (found on github, it needs to be available in your initramfs
https://github.com/Yubico/yubikey-personalization)

  •  uuidgen 
  •  lvm

  •  cryptsetup

How this script works:
your system boots into initramfs and runs 'init' (this script), your kernel
has to deliver all dependencies, as this script is very basic.
it further requests the challenge, stored on boot (on /boot/crypt-challenge)
and combines the response with a usergiven password (that you have to provide)
after unlocking your partitions it generates a new challenge, saves it to the
beforementioned file and sets the new combination of user password and
response as new password on slot "3" of the luks header. the new password is
temporaly written to /newroot/root/key which is assumed to be on your
encrypted device.
init
to initialize your crypt device to work with this script do the following:
we will use slot 3 for the challenge response key, you can change that to any
available slot.
$ cryptsetup luksKillSlot /dev/yourdev 3 (optional, if you had a key there)
$ mount /boot
$ uuidgen > /boot/crypt-challenge
$ ykchalresp -2 "cat /boot/crypt-challenge " > ~/key
we assume that ~/key is located on your encrypted partition, otherwise this
might be a security risk!
$ vi ~/key (add a userpassword in front of the string)
you will type in this password in at every bootup, the script will combine
your passphrase and the yubikey response.
$ cryptsetup luksAddKey --key-slot 3 /dev/sda2 ~/key
$ rm ~/key
About
an init for initramfs, that supports full disk encryption (fde) using the yubico yubikey AES challenge response
Resources
Readme
Activity
Stars
33 stars
Watchers
4 watching
Forks
1 fork
Report repository
Releases
Packages
Contributors
Languages