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# ------------------------------------
# Copyright (c) Microsoft Corporation.
# Licensed under the MIT License.
# ------------------------------------
import os
from azure.identity import DefaultAzureCredential
from azure.keyvault.keys import KeyClient
# ----------------------------------------------------------------------------------------------------------
# Prerequisites:
# 1. An Azure Key Vault (https://learn.microsoft.com/azure/key-vault/quick-create-cli)
#
# 2. azure-keyvault-keys and azure-identity libraries (pip install these)
#
# 3. Set environment variable VAULT_URL with the URL of your key vault
#
# 4. Set up your environment to use azure-identity's DefaultAzureCredential. For more information about how to configure
# the DefaultAzureCredential, refer to https://aka.ms/azsdk/python/identity/docs#azure.identity.DefaultAzureCredential
#
# 5. Key create, list, and delete permissions for your service principal in your vault
#
# ----------------------------------------------------------------------------------------------------------
# Sample - demonstrates the basic list operations for keys
#
# 1. Create a key (create_key)
#
# 2. List keys from the Key Vault (list_keys)
#
# 3. List key versions from the Key Vault (list_properties_of_key_versions)
#
# 4. Delete keys (begin_delete_key)
#
# 5. List deleted keys from the Key Vault (list_deleted_keys)
#
# ----------------------------------------------------------------------------------------------------------
# Instantiate a key client that will be used to call the service.
# Here we use the DefaultAzureCredential, but any azure-identity credential can be used.
VAULT_URL = os.environ["VAULT_URL"]
credential = DefaultAzureCredential()
client = KeyClient(vault_url=VAULT_URL, credential=credential)
# Let's create keys with RSA and EC type. If the key
# already exists in the Key Vault, then a new version of the key is created.
print("\n.. Create Key")
rsa_key = client.create_rsa_key("rsaKeyName")
ec_key = client.create_ec_key("ecKeyName")
print(f"Key with name '{rsa_key.name}' was created of type '{rsa_key.key_type}'.")
print(f"Key with name '{ec_key.name}' was created of type '{ec_key.key_type}'.")
# You need to check the type of all the keys in the vault.
# Let's list the keys and print their key types.
# List operations don 't return the keys with their type information.
# So, for each returned key we call get_key to get the key with its type information.
print("\n.. List keys from the Key Vault")
keys = client.list_properties_of_keys()
for key in keys:
retrieved_key = client.get_key(key.name)
print(f"Key with name '{retrieved_key.name}' with type '{retrieved_key.key_type}' was found.")
# The rsa key size now should now be 3072, default - 2048. So you want to update the key in Key Vault to ensure
# it reflects the new key size. Calling create_rsa_key on an existing key creates a new version of the key in
# the Key Vault with the new key size.
new_key = client.create_rsa_key(rsa_key.name, size=3072)
print(f"New version was created for Key with name '{new_key.name}' with the updated size.")
# You should have more than one version of the rsa key at this time. Lets print all the versions of this key.
print("\n.. List versions of a key using its name")
key_versions = client.list_properties_of_key_versions(rsa_key.name)
for key in key_versions:
print(f"Key '{key.name}' has version: '{key.version}'")
# Both the rsa key and ec key are not needed anymore. Let's delete those keys.
print("\n.. Delete the created keys...")
for key_name in (ec_key.name, rsa_key.name):
client.begin_delete_key(key_name).wait()
# You can list all the deleted and non-purged keys.
print("\n.. List deleted keys from the Key Vault (requires soft-delete)")
deleted_keys = client.list_deleted_keys()
for deleted_key in deleted_keys:
print(f"Key with name '{deleted_key.name}' has recovery id '{deleted_key.recovery_id}'")
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