azure.keyvault.keys package¶

class azure.keyvault.keys.KeyClient(vault_url, credential, **kwargs)[source]¶

A high-level interface for managing a vault’s keys.

Parameters

vault_url (str) – URL of the vault the client will access. This is also called the vault’s “DNS Name”.
credential – An object which can provide an access token for the vault, such as a credential from azure.identity

Keyword Arguments

api_version (str) – version of the Key Vault API to use. Defaults to the most recent.
transport (HttpTransport) – transport to use. Defaults to RequestsTransport.

Example

Create a new KeyClient¶

from azure.identity import DefaultAzureCredential
from azure.keyvault.keys import KeyClient

# Create a KeyClient using default Azure credentials
credential = DefaultAzureCredential()
key_client = KeyClient(vault_url, credential)

backup_key(name, **kwargs)[source]¶

Back up a key in a protected form useable only by Azure Key Vault. Requires keys/backup permission.

This is intended to allow copying a key from one vault to another. Both vaults must be owned by the same Azure subscription. Also, backup / restore cannot be performed across geopolitical boundaries. For example, a backup from a vault in a USA region cannot be restored to a vault in an EU region.

Parameters: name (str) – The name of the key to back up
Return type: bytes
Raises: ResourceNotFoundError if the key doesn’t exist, HttpResponseError for other errors

Example

Get a key backup¶

# backup key
key_backup = key_client.backup_key(key_name)

# returns the raw bytes of the backed up key
print(key_backup)

begin_delete_key(name, **kwargs)[source]¶

Delete all versions of a key and its cryptographic material. Requires keys/delete permission.

When this method returns Key Vault has begun deleting the key. Deletion may take several seconds in a vault with soft-delete enabled. This method therefore returns a poller enabling you to wait for deletion to complete.

Parameters: name (str) – The name of the key to delete.
Returns: A poller for the delete key operation. The poller’s result method returns the DeletedKey without waiting for deletion to complete. If the vault has soft-delete enabled and you want to permanently delete the key with purge_deleted_key(), call the poller’s wait method first. It will block until the deletion is complete. The wait method requires keys/get permission.
Return type: LROPoller[DeletedKey]
Raises: ResourceNotFoundError if the key doesn’t exist, HttpResponseError for other errors

Example

Delete a key¶

# delete a key
deleted_key_poller = key_client.begin_delete_key("key-name")
deleted_key = deleted_key_poller.result()

print(deleted_key.name)

# if the vault has soft-delete enabled, the key's deleted_date,
# scheduled purge date and recovery id are set
print(deleted_key.deleted_date)
print(deleted_key.scheduled_purge_date)
print(deleted_key.recovery_id)

# if you want to block until deletion is complete, call wait() on the poller
deleted_key_poller.wait()

begin_recover_deleted_key(name, **kwargs)[source]¶

Recover a deleted key to its latest version. Possible only in a vault with soft-delete enabled.

Requires keys/recover permission.

When this method returns Key Vault has begun recovering the key. Recovery may take several seconds. This method therefore returns a poller enabling you to wait for recovery to complete. Waiting is only necessary when you want to use the recovered key in another operation immediately.

Parameters: name (str) – The name of the deleted key to recover
Returns: A poller for the recovery operation. The poller’s result method returns the recovered KeyVaultKey without waiting for recovery to complete. If you want to use the recovered key immediately, call the poller’s wait method, which blocks until the key is ready to use. The wait method requires keys/get permission.
Return type: LROPoller[KeyVaultKey]
Raises: HttpResponseError

Example

Recover a deleted key¶

# recover a deleted key to its latest version (requires soft-delete enabled for the vault)
recover_key_poller = key_client.begin_recover_deleted_key("key-name")
recovered_key = recover_key_poller.result()
print(recovered_key.id)
print(recovered_key.name)

# if you want to block until key is recovered server-side, call wait() on the poller
recover_key_poller.wait()

create_ec_key(name, **kwargs)[source]¶

Create a new elliptic curve key or, if name is already in use, create a new version of the key.

Requires the keys/create permission.

Parameters

name (str) – The name for the new key.

Keyword Arguments

curve (KeyCurveName or str) – Elliptic curve name. Defaults to the NIST P-256 elliptic curve.
key_operations (list[KeyOperation or str]) – Allowed key operations
hardware_protected (bool) – Whether the key should be created in a hardware security module. Defaults to False.
enabled (bool) – Whether the key is enabled for use.
tags (dict[str, str]) – Application specific metadata in the form of key-value pairs.
not_before (datetime) – Not before date of the key in UTC
expires_on (datetime) – Expiry date of the key in UTC

Returns

The created key

Return type

KeyVaultKey

Raises

HttpResponseError

Example

Create an elliptic curve key¶

key_curve = "P-256"

# create an EC (Elliptic curve) key with curve specification
# EC key can be created with default curve of 'P-256'
ec_key = key_client.create_ec_key("key-name", curve=key_curve)

print(ec_key.id)
print(ec_key.properties.version)
print(ec_key.key_type)
print(ec_key.key.crv)

create_key(name, key_type, **kwargs)[source]¶

Create a key or, if name is already in use, create a new version of the key.

Requires keys/create permission.

Parameters

name (str) – The name of the new key.
key_type (KeyType or str) – The type of key to create

Keyword Arguments

size (int) – RSA key size in bits, for example 2048, 3072, or 4096. Applies only to RSA keys. To create an RSA key, consider using create_rsa_key() instead.
curve (KeyCurveName or str) – Elliptic curve name. Applies only to elliptic curve keys. Defaults to the NIST P-256 elliptic curve. To create an elliptic curve key, consider using create_ec_key() instead.
key_operations (list[KeyOperation or str]) – Allowed key operations
enabled (bool) – Whether the key is enabled for use.
tags (dict[str, str]) – Application specific metadata in the form of key-value pairs.
not_before (datetime) – Not before date of the key in UTC
expires_on (datetime) – Expiry date of the key in UTC

Returns

The created key

Return type

KeyVaultKey

Raises

HttpResponseError

Example

Create a key¶

from dateutil import parser as date_parse

expires_on = date_parse.parse("2050-02-02T08:00:00.000Z")

# create a key with optional arguments
key = key_client.create_key("key-name", "RSA-HSM", expires_on=expires_on)

print(key.name)
print(key.id)
print(key.key_type)
print(key.properties.expires_on)

create_rsa_key(name, **kwargs)[source]¶

Create a new RSA key or, if name is already in use, create a new version of the key

Requires the keys/create permission.

Parameters

name (str) – The name for the new key.

Keyword Arguments

size (int) – Key size in bits, for example 2048, 3072, or 4096.
hardware_protected (bool) – Whether the key should be created in a hardware security module. Defaults to False.
key_operations (list[KeyOperation or str]) – Allowed key operations
enabled (bool) – Whether the key is enabled for use.
tags (dict[str, str]) – Application specific metadata in the form of key-value pairs.
not_before (datetime) – Not before date of the key in UTC
expires_on (datetime) – Expiry date of the key in UTC

Returns

The created key

Return type

KeyVaultKey

Raises

HttpResponseError

Example

Create RSA key¶

key_size = 2048
key_ops = ["encrypt", "decrypt", "sign", "verify", "wrapKey", "unwrapKey"]

# create an rsa key with size specification
# RSA key can be created with default size of '2048'
key = key_client.create_rsa_key("key-name", hardware_protected=True, size=key_size, key_operations=key_ops)

print(key.id)
print(key.name)
print(key.key_type)
print(key.key_operations)

get_deleted_key(name, **kwargs)[source]¶

Get a deleted key. Possible only in a vault with soft-delete enabled. Requires keys/get permission.

Parameters: name (str) – The name of the key
Returns: The deleted key
Return type: DeletedKey
Raises: ResourceNotFoundError if the key doesn’t exist, HttpResponseError for other errors

Example

Get a deleted key¶

# get a deleted key (requires soft-delete enabled for the vault)
deleted_key = key_client.get_deleted_key("key-name")
print(deleted_key.name)

# if the vault has soft-delete enabled, the key's deleted_date
# scheduled purge date and recovery id are set
print(deleted_key.deleted_date)
print(deleted_key.scheduled_purge_date)
print(deleted_key.recovery_id)

get_key(name, version=None, **kwargs)[source]¶

Get a key’s attributes and, if it’s an asymmetric key, its public material. Requires keys/get permission.

Parameters

name (str) – The name of the key to get.
version (str) – (optional) A specific version of the key to get. If not specified, gets the latest version of the key.

Return type

KeyVaultKey

Raises

ResourceNotFoundError if the key doesn’t exist, HttpResponseError for other errors

Example

Get a key¶

# get the latest version of a key
key = key_client.get_key("key-name")

# alternatively, specify a version
key_version = key.properties.version
key = key_client.get_key("key-name", key_version)

print(key.id)
print(key.name)
print(key.properties.version)
print(key.key_type)
print(key.properties.vault_url)

import_key(name, key, **kwargs)[source]¶

Import a key created externally. Requires keys/import permission.

If name is already in use, the key will be imported as a new version.

Parameters

name (str) – Name for the imported key
key (JsonWebKey) – The JSON web key to import

Keyword Arguments

hardware_protected (bool) – Whether the key should be backed by a hardware security module
enabled (bool) – Whether the key is enabled for use.
tags (dict[str, str]) – Application specific metadata in the form of key-value pairs.
not_before (datetime) – Not before date of the key in UTC
expires_on (datetime) – Expiry date of the key in UTC

Returns

The imported key

Return type

KeyVaultKey

Raises

HttpResponseError

list_deleted_keys(**kwargs)[source]¶

List all deleted keys, including the public part of each. Possible only in a vault with soft-delete enabled.

Requires keys/list permission.

Returns: An iterator of deleted keys
Return type: ItemPaged[DeletedKey]

Example

List all the deleted keys¶

# get an iterator of deleted keys (requires soft-delete enabled for the vault)
deleted_keys = key_client.list_deleted_keys()

for key in deleted_keys:
    print(key.id)
    print(key.name)
    print(key.scheduled_purge_date)
    print(key.recovery_id)
    print(key.deleted_date)

list_properties_of_key_versions(name, **kwargs)[source]¶

List the identifiers and properties of a key’s versions. Requires keys/list permission.

Parameters: name (str) – The name of the key
Returns: An iterator of keys without their cryptographic material
Return type: ItemPaged[KeyProperties]

Example

List all versions of a key¶

# get an iterator of a key's versions
key_versions = key_client.list_properties_of_key_versions("key-name")

for key in key_versions:
    print(key.id)
    print(key.name)

list_properties_of_keys(**kwargs)[source]¶

List identifiers and properties of all keys in the vault. Requires keys/list permission.

Returns: An iterator of keys without their cryptographic material or version information
Return type: ItemPaged[KeyProperties]

Example

List all keys¶

# get an iterator of keys
keys = key_client.list_properties_of_keys()

for key in keys:
    print(key.id)
    print(key.name)

purge_deleted_key(name, **kwargs)[source]¶

Permanently delete a key. Only possible in a vault with soft-delete enabled. Requires keys/purge permission.

If the vault does not have soft-delete enabled, begin_delete_key() permanently deletes the key, and this method will return an error.

Parameters: name (str) – The name of the deleted key to purge
Returns: None
Raises: HttpResponseError

Example

# if the vault has soft-delete enabled, purge permanently deletes a deleted key
# (with soft-delete disabled, begin_delete_key is permanent)
key_client.purge_deleted_key("key-name")

restore_key_backup(backup, **kwargs)[source]¶

Restore a key backup to the vault. Requires keys/restore permission.

This imports all versions of the key, with its name, attributes, and access control policies. If the key’s name is already in use, restoring it will fail. Also, the target vault must be owned by the same Microsoft Azure subscription as the source vault.

Parameters: backup (bytes) – A key backup as returned by backup_key()
Returns: The restored key
Return type: KeyVaultKey
Raises: ResourceExistsError if the backed up key’s name is already in use, HttpResponseError for other errors

Example

Restore a key backup¶

# restore a key backup
restored_key = key_client.restore_key_backup(key_backup)
print(restored_key.id)
print(restored_key.properties.version)

update_key_properties(name, version=None, **kwargs)[source]¶

Change a key’s properties (not its cryptographic material). Requires keys/update permission.

Parameters

name (str) – The name of key to update
version (str) – (optional) The version of the key to update. If unspecified, the latest version is updated.

Keyword Arguments

key_operations (list[KeyOperation or str]) – Allowed key operations
enabled (bool) – Whether the key is enabled for use.
tags (dict[str, str]) – Application specific metadata in the form of key-value pairs.
not_before (datetime) – Not before date of the key in UTC
expires_on (datetime) – Expiry date of the key in UTC

Returns

The updated key

Return type

KeyVaultKey

Raises

ResourceNotFoundError if the key doesn’t exist, HttpResponseError for other errors

Example

Update a key’s attributes¶

# update attributes of an existing key
expires_on = date_parse.parse("2050-01-02T08:00:00.000Z")
tags = {"foo": "updated tag"}
updated_key = key_client.update_key_properties(key.name, expires_on=expires_on, tags=tags)

print(updated_key.properties.version)
print(updated_key.properties.updated_on)
print(updated_key.properties.expires_on)
print(updated_key.properties.tags)
print(key.key_type)

property vault_url¶

class azure.keyvault.keys.JsonWebKey(**kwargs)[source]¶

As defined in http://tools.ietf.org/html/draft-ietf-jose-json-web-key-18. All parameters are optional.

Parameters

kid (str) – Key identifier.
kty (KeyType or str) – Key Type (kty), as defined in https://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-40
key_ops (list[str or KeyOperation]) – Allowed operations for the key
n (bytes) – RSA modulus.
e (bytes) – RSA public exponent.
d (bytes) – RSA private exponent, or the D component of an EC private key.
dp (bytes) – RSA private key parameter.
dq (bytes) – RSA private key parameter.
qi (bytes) – RSA private key parameter.
p (bytes) – RSA secret prime.
q (bytes) – RSA secret prime, with p < q.
k (bytes) – Symmetric key.
t (bytes) – HSM Token, used with ‘Bring Your Own Key’.
crv (KeyCurveName or str) – Elliptic curve name.
x (bytes) – X component of an EC public key.
y (bytes) – Y component of an EC public key.

class azure.keyvault.keys.KeyVaultKey(key_id, jwk=None, **kwargs)[source]¶

A key’s attributes and cryptographic material.

Parameters

key_id (str) – Key Vault’s identifier for the key. Typically a URI, e.g. https://myvault.vault.azure.net/keys/my-key/version
jwk – The key’s cryptographic material as a JSON Web Key (https://tools.ietf.org/html/rfc7517). This may be provided as a dictionary or keyword arguments. See JsonWebKey for field names.

Providing cryptographic material as keyword arguments:

from azure.keyvault.keys.models import KeyVaultKey

key_id = 'https://myvault.vault.azure.net/keys/my-key/my-key-version'
key_bytes = os.urandom(32)
key = KeyVaultKey(key_id, k=key_bytes, kty='oct', key_ops=['unwrapKey', 'wrapKey'])

Providing cryptographic material as a dictionary:

from azure.keyvault.keys.models import KeyVaultKey

key_id = 'https://myvault.vault.azure.net/keys/my-key/my-key-version'
key_bytes = os.urandom(32)
jwk = {'k': key_bytes, 'kty': 'oct', 'key_ops': ['unwrapKey', 'wrapKey']}
key = KeyVaultKey(key_id, jwk=jwk)

property id¶

The key’s id

Return type: str

property key¶

The JSON web key

Return type: JsonWebKey

property key_operations¶

Permitted operations. See KeyOperation for possible values.

Return type: list[KeyOperation or str]

property key_type¶

The key’s type. See KeyType for possible values.

Return type: KeyType or str

property name¶

The key’s name

Return type: str

property properties¶

The key’s properties

Return type: KeyProperties

class azure.keyvault.keys.KeyCurveName[source]¶

Supported elliptic curves

p_256 = 'P-256'¶: The NIST P-256 elliptic curve, AKA SECG curve SECP256R1.

p_256_k = 'P-256K'¶: The SECG SECP256K1 elliptic curve.

p_384 = 'P-384'¶: The NIST P-384 elliptic curve, AKA SECG curve SECP384R1.

p_521 = 'P-521'¶: The NIST P-521 elliptic curve, AKA SECG curve SECP521R1.

class azure.keyvault.keys.KeyOperation[source]¶

Supported key operations

decrypt = 'decrypt'¶

encrypt = 'encrypt'¶

sign = 'sign'¶

unwrap_key = 'unwrapKey'¶

verify = 'verify'¶

wrap_key = 'wrapKey'¶

class azure.keyvault.keys.KeyType[source]¶

Supported key types

ec = 'EC'¶: Elliptic Curve

ec_hsm = 'EC-HSM'¶: Elliptic Curve with a private key which is not exportable from the HSM

oct = 'oct'¶: Octet sequence (used to represent symmetric keys)

rsa = 'RSA'¶

rsa_hsm = 'RSA-HSM'¶: RSA with a private key which is not exportable from the HSM

class azure.keyvault.keys.DeletedKey(properties, deleted_date=None, recovery_id=None, scheduled_purge_date=None, **kwargs)[source]¶

A deleted key’s properties, cryptographic material and its deletion information. If soft-delete is enabled, returns information about its recovery as well.

property deleted_date¶

When the key was deleted, in UTC

Return type: datetime

property id¶

The key’s id

Return type: str

property key¶

The JSON web key

Return type: JsonWebKey

property key_operations¶

Permitted operations. See KeyOperation for possible values.

Return type: list[KeyOperation or str]

property key_type¶

The key’s type. See KeyType for possible values.

Return type: KeyType or str

property name¶

The key’s name

Return type: str

property properties¶

The key’s properties

Return type: KeyProperties

property recovery_id¶

An identifier used to recover the deleted key. Returns None if soft-delete is disabled.

Return type: str

property scheduled_purge_date¶

When the key is scheduled to be purged, in UTC. Returns None if soft-delete is disabled.

Return type: datetime

class azure.keyvault.keys.KeyProperties(key_id, attributes=None, **kwargs)[source]¶

A key’s id and attributes.

property created_on¶

When the key was created, in UTC

Return type: datetime

property enabled¶

Whether the key is enabled for use

Return type: bool

property expires_on¶

When the key will expire, in UTC

Return type: datetime

property id¶

The key’s id

Return type: str

property managed¶

Returns whether the key’s lifetime is managed by key vault

Return type: bool

property name¶

The key’s name

Return type: str

property not_before¶

The time before which the key can not be used, in UTC

Return type: datetime

property recovery_level¶

The vault’s deletion recovery level for keys

Return type: str

property tags¶

Application specific metadata in the form of key-value pairs

Return type: dict[str, str]

property updated_on¶

When the key was last updated, in UTC

Return type: datetime

property vault_url¶

URL of the vault containing the key

Return type: str

property version¶

The key’s version

Return type: str

azure.keyvault.keys package¶

Subpackages¶