Generate Private Key File Openssl
Generate Private Key File Openssl 3,4/5 5185 reviews
  1. Openssl Generate Private Key Pair
  2. Private Key Definition
  • This module allows one to (re)generate OpenSSL private keys.
  • One can generate RSA, DSA, ECC or EdDSA private keys.
  • Keys are generated in PEM format.
  • Please note that the module regenerates private keys if they don’t match the module’s options. In particular, if you provide another passphrase (or specify none), change the keysize, etc., the private key will be regenerated. If you are concerned that this could overwrite your private key, consider using the backup option.
  • The module can use the cryptography Python library, or the pyOpenSSL Python library. By default, it tries to detect which one is available. This can be overridden with the select_crypto_backend option. Please note that the PyOpenSSL backend was deprecated in Ansible 2.9 and will be removed in Ansible 2.13.”

Openssl Generate Private Key Pair

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

  • Either cryptography >= 1.2.3 (older versions might work as well)
  • Or pyOpenSSL

How to Decrypt an Enrypted SSL RSA Private Key (PEM / KEY). Or contain both the certificate and private key in one file. Use the following command to create non-strict certificate and/or private key in PEM format. (replace server.key and server.key.pem with the actual file names): openssl rsa -in server.key -text server.key.pem. The private key however is stored on the machine that generated the CSR (presumably the server requiring the cert, but not necessarily) and is NOT included in the contents of the CSR, and may not be derived from the CSR. It is kept private. In general terms, the server generating the CSR generates a key pair (public and private). Jun 19, 2015  openssl – the command for executing OpenSSL; pkcs12 – the file utility for PKCS#12 files in OpenSSL-export -out certificate.pfx – export and save the PFX file as certificate.pfx-inkey privateKey.key – use the private key file privateKey.key as the private key to combine with the certificate.

Private Key Definition

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.
backup
added in 2.8
    Choices:
  • yes
Create a backup file including a timestamp so you can get the original private key back if you overwrote it with a new one by accident.
cipher
string
The cipher to encrypt the private key. (Valid values can be found by running `openssl list -cipher-algorithms` or `openssl list-cipher-algorithms`, depending on your OpenSSL version.)
curve
added in 2.8
    Choices:
  • secp384r1
  • secp521r1
  • secp224r1
  • secp192r1
  • secp256r1
  • secp256k1
  • brainpoolP256r1
  • brainpoolP384r1
  • brainpoolP512r1
  • sect571k1
  • sect409k1
  • sect283k1
  • sect233k1
  • sect163k1
  • sect571r1
  • sect409r1
  • sect283r1
  • sect233r1
  • sect163r2
Note that not all curves are supported by all versions of cryptography.
For maximal interoperability, secp384r1 or secp256r1 should be used.
We use the curve names as defined in the IANA registry for TLS.
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
string
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).
As of Ansible 2.6, the mode may also be the special string preserve.
When set to preserve the file will be given the same permissions as the source file.
owner
string
Name of the user that should own the file/directory, as would be fed to chown.
passphrase
string
The passphrase for the private key.
path
path / required
Name of the file in which the generated TLS/SSL private key will be written. It will have 0600 mode.
select_crypto_backend
string
    Choices:
  • auto ←
  • cryptography
  • pyopenssl
The default choice is auto, which tries to use cryptography if available, and falls back to pyopenssl.
If set to pyopenssl, will try to use the pyOpenSSL library.
If set to cryptography, will try to use the cryptography library.
Please note that the pyopenssl backend has been deprecated in Ansible 2.9, and will be removed in Ansible 2.13. From that point on, only the cryptography backend will be available.
selevel
string
Default:
The level part of the SELinux file context.
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
Default:
Size (in bits) of the TLS/SSL key to generate.
state
string
    Choices:
  • absent
Whether the private key should exist or not, taking action if the state is different from what is stated.
type
string
    Choices:
  • DSA
  • ECC
  • Ed25519
  • Ed448
  • X25519
  • X448
The algorithm used to generate the TLS/SSL private key.
Note that ECC, X25519, X448, Ed25519 and Ed448 require the cryptography backend. X25519 needs cryptography 2.5 or newer, while X448, Ed25519 and Ed448 require cryptography 2.6 or newer. For ECC, the minimal cryptography version required depends on the curve option.
unsafe_writes
boolean
    Choices:
  • 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.

See also

openssl_certificate – Generate and/or check OpenSSL certificates
The official documentation on the openssl_certificate module.
openssl_csr – Generate OpenSSL Certificate Signing Request (CSR)
The official documentation on the openssl_csr module.
openssl_dhparam – Generate OpenSSL Diffie-Hellman Parameters
The official documentation on the openssl_dhparam module.
openssl_pkcs12 – Generate OpenSSL PKCS#12 archive
The official documentation on the openssl_pkcs12 module.
openssl_publickey – Generate an OpenSSL public key from its private key
The official documentation on the openssl_publickey module.

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

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SiteGround uses key-based authentication for SSH. This has proven more secure over standard username/password authentication. More information on SSH keys can be found here. You can generate an SSH key pair directly in cPanel, or you can generate the keys yourself and just upload the public one in cPanel to use with your hosting account. Generating a Secure Shell (SSH) Public/Private Key Pair Several tools exist to generate SSH public/private key pairs. The following sections show how to generate an SSH key. Linux generate private key pair.

KeyReturnedDescription
backup_file
string
changed and if backup is yes
Sample:
curvechanged or success, and type is ECC
Elliptic curve used to generate the TLS/SSL private key.

secp256r1
filename
string
changed or success
Sample:
fingerprintchanged or success
The fingerprint of the public key. Fingerprint will be generated for each hashlib.algorithms available.
The PyOpenSSL backend requires PyOpenSSL >= 16.0 for meaningful output.

{'md5': '84:75:71:72:8d:04:b5:6c:4d:37:6d:66:83:f5:4c:29', 'sha1': '51:cc:7c:68:5d:eb:41:43:88:7e:1a:ae:c7:f8:24:72:ee:71:f6:10', 'sha224': 'b1:19:a6:6c:14:ac:33:1d:ed:18:50:d3:06:5c:b2:32:91:f1:f1:52:8c:cb:d5:75:e9:f5:9b:46', 'sha256': '41:ab:c7:cb:d5:5f:30:60:46:99:ac:d4:00:70:cf:a1:76:4f:24:5d:10:24:57:5d:51:6e:09:97:df:2f:de:c7', 'sha384': '85:39:50:4e:de:d9:19:33:40:70:ae:10:ab:59:24:19:51:c3:a2:e4:0b:1c:b1:6e:dd:b3:0c:d9:9e:6a:46:af:da:18:f8:ef:ae:2e:c0:9a:75:2c:9b:b3:0f:3a:5f:3d', 'sha512': 'fd:ed:5e:39:48:5f:9f:fe:7f:25:06:3f:79:08:cd:ee:a5:e7:b3:3d:13:82:87:1f:84:e1:f5:c7:28:77:53:94:86:56:38:69:f0:d9:35:22:01:1e:a6:60:..:0f:9b'}
size
integer
changed or success
Sample:
typechanged or success
Algorithm used to generate the TLS/SSL private key.

RSA

  • This module is not guaranteed to have a backwards compatible interface. [preview]
  • This module is maintained by the Ansible Community. [community]

Authors¶

  • Yanis Guenane (@Spredzy)
  • Felix Fontein (@felixfontein)
Generate Private Key File Openssl

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