Openssh Private Key



Note

  1. Openssh Private Key Putty
  2. Begin Openssh Private Key
  3. Openssh Private Key To Ppk

OpenSSH comes with an ssh-agent daemon and an ssh-add utility to cache the unlocked private key. The GNOME desktop also has a keyring daemon that stores passwords and secrets but also implements an SSH agent. To do this, launch PuTTYgen and from the “Conversions” menu, select the “Import key” option. Select your key and follow the prompts to enter your pass phrase. Save your private key. Now run Pageant. In your system tray, you’ll see the Pageant icon appear. Right-click the icon and select “Add Key” and select your private key (PPK.

Zeplin cost. This plugin is part of the community.crypto collection (version 1.6.1).

Supported SSH key formats. Azure currently supports SSH protocol 2 (SSH-2) RSA public-private key pairs with a minimum length of 2048 bits. Other key formats such as ED25519 and ECDSA are not supported. Create an SSH key pair. Use the ssh-keygen command to generate SSH public and private key files. By default, these files are created in the. New keys with OpenSSH private key format can be converted using ssh-keygen utility to the old PEM format. Ssh-keygen -p -m PEM -f /.ssh/idrsa There is no need to downgrade to older OpenSSH just to achieve this result.

To install it use: ansible-galaxycollectioninstallcommunity.crypto.

To use it in a playbook, specify: community.crypto.openssh_keypair.

  • Winamp 3.1. This module allows one to (re)generate OpenSSH private and public keys. It uses ssh-keygen to generate keys. One can generate rsa, dsa, rsa1, ed25519 or ecdsa private keys.

Openssh Private Key Putty

The below requirements are needed on the host that executes this module.

  • ssh-keygen

ParameterChoices/DefaultsComments
attributes
string
The attributes the resulting file or directory should have.
To get supported flags look at the man page for chattr on the target system.
This string should contain the attributes in the same order as the one displayed by lsattr.
The = operator is assumed as default, otherwise + or - operators need to be included in the string.
comment
Provides a new comment to the public key.
force
boolean
    Choices:
  • yes
Should the key be regenerated even if it already exists
group
string
Name of the group that should own the file/directory, as would be fed to chown.
mode
raw
The permissions the resulting file or directory should have.
For those used to /usr/bin/chmod remember that modes are actually octal numbers. You must either add a leading zero so that Ansible's YAML parser knows it is an octal number (like 0644 or 01777) or quote it (like '644' or '1777') so Ansible receives a string and can do its own conversion from string into number.
Giving Ansible a number without following one of these rules will end up with a decimal number which will have unexpected results.
As of Ansible 1.8, the mode may be specified as a symbolic mode (for example, u+rwx or u=rw,g=r,o=r).
owner
string
Name of the user that should own the file/directory, as would be fed to chown.
path
path / required
Name of the files containing the public and private key. The file containing the public key will have the extension .pub.
regenerate
string
    Choices:
  • never
  • fail
  • partial_idempotence
  • full_idempotence
  • always
Allows to configure in which situations the module is allowed to regenerate private keys. The module will always generate a new key if the destination file does not exist.
By default, the key will be regenerated when it does not match the module's options, except when the key cannot be read or the passphrase does not match. Please note that this changed for Ansible 2.10. For Ansible 2.9, the behavior was as if full_idempotence is specified.
If set to never, the module will fail if the key cannot be read or the passphrase isn't matching, and will never regenerate an existing key.
If set to fail, the module will fail if the key does not correspond to the module's options.
If set to partial_idempotence, the key will be regenerated if it does not conform to the module's options. The key is not regenerated if it cannot be read (broken file), the key is protected by an unknown passphrase, or when they key is not protected by a passphrase, but a passphrase is specified.
If set to full_idempotence, the key will be regenerated if it does not conform to the module's options. This is also the case if the key cannot be read (broken file), the key is protected by an unknown passphrase, or when they key is not protected by a passphrase, but a passphrase is specified. Make sure you have a backup when using this option!
If set to always, the module will always regenerate the key. This is equivalent to setting force to yes.
Note that adjusting the comment and the permissions can be changed without regeneration. Therefore, even for never, the task can result in changed.
selevel
string
This is the MLS/MCS attribute, sometimes known as the range.
When set to _default, it will use the level portion of the policy if available.
serole
string
When set to _default, it will use the role portion of the policy if available.
setype
string
When set to _default, it will use the type portion of the policy if available.
seuser
string
By default it uses the system policy, where applicable.
When set to _default, it will use the user portion of the policy if available.
size
integer
Specifies the number of bits in the private key to create. For RSA keys, the minimum size is 1024 bits and the default is 4096 bits. Generally, 2048 bits is considered sufficient. DSA keys must be exactly 1024 bits as specified by FIPS 186-2. For ECDSA keys, size determines the key length by selecting from one of three elliptic curve sizes: 256, 384 or 521 bits. Attempting to use bit lengths other than these three values for ECDSA keys will cause this module to fail. Ed25519 keys have a fixed length and the size will be ignored.
state
string
    Choices:
  • absent
Whether the private and public keys should exist or not, taking action if the state is different from what is stated.
type
string
    Choices:
  • dsa
  • rsa1
  • ecdsa
  • ed25519
The algorithm used to generate the SSH private key. rsa1 is for protocol version 1. rsa1 is deprecated and may not be supported by every version of ssh-keygen.
unsafe_writes
boolean
    Choices:
  • no
  • yes
Influence when to use atomic operation to prevent data corruption or inconsistent reads from the target file.
By default this module uses atomic operations to prevent data corruption or inconsistent reads from the target files, but sometimes systems are configured or just broken in ways that prevent this. One example is docker mounted files, which cannot be updated atomically from inside the container and can only be written in an unsafe manner.
This option allows Ansible to fall back to unsafe methods of updating files when atomic operations fail (however, it doesn't force Ansible to perform unsafe writes).
IMPORTANT! Unsafe writes are subject to race conditions and can lead to data corruption.

Note

  • In case the ssh key is broken or password protected, the module will fail. Set the force option to yes if you want to regenerate the keypair.

  • Supports check_mode.

Common return values are documented here, the following are the fields unique to this module:

KeyReturnedDescription
comment
string
changed or success
Sample:
filenamechanged or success
Path to the generated SSH private key file.

/tmp/id_ssh_rsa
fingerprint
string
changed or success
Sample:
SHA256:r4YCZxihVjedH2OlfjVGI6Y5xAYtdCwk8VxKyzVyYfM
public_key
string
changed or success
Sample:
ssh-rsa AAAAB3Nza(..omitted..)veL4E3Xcw test_key
size
integer
changed or success
Sample:
typechanged or success
Algorithm used to generate the SSH private key.

rsa
Openssh private key putty

Begin Openssh Private Key


With the release of OpenSSH 7.8, the default private key format for private keys generated from ssh-keygen has changed from OpenSSL compatible PEM files to a custom key format created by the OpenSSH developers. At the time of writing, the majority of open-source Java SSH APIs will need the keys converting back to the old format before the keys can be used.

Take the standard command-line to generate a 2048 bit RSA key with OpenSSH 7.8 or above.

This command-line generates a key that looks like this:

If you need to use the old format file still when generating new keys, you can use a new command-line option to specify the type of format required.

This command-line generates the old-style PEM format that is compatible with most Java SSH APIs.

While end-users may be willing to do this in the short-term, the solution is to use a Java SSH API that supports this new format.

The Maverick Legacy commercial Java SSH APIs have supported the new format since version 1.7.20. With both reading and key generation support for all the algorithms supported by OpenSSH, namely, RSA, ECDSA, and ED25519.

The Maverick Synergy open-source Java SSH API also supports the same algorithms for reading and key generation. With both APIs, the default is to generate new keys with the new format.

Openssh Private Key To Ppk

To generate a new ed25519 key pair with Maverick Synergy, it’s as simple as

Then to store these on file for later use:

We can then load them to use in SSH authentication with the API using:

For more information on Maverick Synergy, including download and API documentation, please visit https://www.jadaptive.com/en/products/java-ssh-synergy