AzureKeys Class
Properties Methods Events Configuration Settings Errors
The AzureKeys class makes it easy to interact with keys in Azure Key Vaults.
Syntax
cloudkeys.azurekeys()
Remarks
The AzureKeys class provides an easy-to-use interface for the key-related functionality of the Azure Key Vault service. Azure Key Vault allows you to works with a few different kinds of resources, one of which is asymmetric key pairs. This class helps you to create, manage, and use said key pairs (or just "keys", for short) for cryptographic operations. To work with "secrets" instead, refer to the AzureSecrets class.
To begin, register for an Azure account and create one or more Key Vaults via the Azure Portal. Set the Vault property to the name of the vault you wish to work with.
This class supports authentication via OAuth 2.0. First, perform OAuth authentication using the OAuth class or a separate process. Once complete you should have an authorization string which looks like:
Bearer ya29.AHES6ZSZEJzATdZYjeihDn5W-VrXSsxEZu5p0pclxGdKKQ
Using the Class
Keys can be created using the CreateKey method. A key's name and type (i.e., whether it is RSA or EC, and its size or curve, respectively) must be set at the time of creation, and cannot be changed later. A list of cryptographic operations that the key is valid for must also be set, but can be changed at any time using the UpdateKey. If a key with the specified name already exists, a new version of it is created; this makes it easy to "rotate" a key.
When a key will no longer be used, it can be deleted using the DeleteKey method. However, the key will only be soft-deleted; by default, Azure will permanently delete it after the waiting period configured for the vault. During this waiting period, the soft-deleted key may be recovered using RecoverKey, or permanently deleted using PurgeKey (assuming the currently-authenticated user has the permissions to do so).
azurekeys.CreateKey(
"mykey"
,
"RSA_2048"
,
"encrypt,decrypt,sign,verify,wrapKey,unwrapKey"
);
// ... Some time later, when the key is no longer needed ...
azurekeys.DeleteKey(
"mykey"
);
// At this point, the key is only soft-deleted. It could be recovered...
azurekeys.RecoverKey(
"mykey"
);
// ...or permanently deleted.
azurekeys.PurgeKey(
"mykey"
);
To list keys, use the ListKeys method. This method is also used to list soft-deleted keys if the GetDeleted configuration setting has been enabled first. To list a key's versions, use the ListVersions method. (You cannot list a deleted key's versions.) In all cases, the IncludeKeyDetails property can optionally be enabled to have the class attempt to retrieve the full information for each key (Azure leaves out certain fields by default when listing).
// If there are many keys to list, there may be multiple pages of results. This will
// cause all pages of results to be accumulated into the Keys collection property.
do
{
azurekeys.ListKeys();
}
while
(!
string
.IsNullOrEmpty(azurekeys.KeyMarker));
// A similar thing applies to key versions as well.
do
{
azurekeys.ListVersions(
"mykey"
);
}
while
(!
string
.IsNullOrEmpty(azurekeys.VersionMarker));
Depending on a key's "key ops" list, it can be used to perform different cryptographic operations. Keys with the encrypt and decrypt ops can be used in Encrypt and Decrypt operations. Keys with the sign and verify ops can be used in Sign and Verify. Finally, keys with the wrapKey and unwrapKey ops can be used in WrapKey and UnwrapKey operations (which are just like encryption and decryption, but which are intended to be used for wrapping a symmetric key, and which require different permissions to call successfully).
To perform a cryptographic operation, use InputData or InputFile to supply the input data that should be processed. All operations will output the result data to OutputData or OutputFile (except Verify; refer to its documentation for more information).
azurekeys.CreateKey(
"mykey"
,
"RSA_2048"
,
"encrypt,decrypt"
);
azurekeys.InputData =
"Test123"
;
azurekeys.OutputFile =
"C:/temp/enc.dat"
;
azurekeys.Encrypt(
"mykey"
,
"RSA-OAEP-256"
);
azurekeys.InputFile =
"C:/temp/enc.dat"
;
azurekeys.OutputFile =
""
;
// So that the data will be output to the OutputData property.
azurekeys.Decrypt(
"mykey"
,
"RSA-OAEP-256"
);
The class also supports a variety of other functionality, including:
- Retrieval of a single key's information (including public key) with GetKeyInfo.
- Enabling and disabling keys with SetKeyEnabled.
- Tagging support using AddTag and the Tag* properties.
- Secure key backup and restoration using BackupKey and RestoreKey.
- And more!
Property List
The following is the full list of the properties of the class with short descriptions. Click on the links for further details.
Authorization | OAuth 2.0 Authorization Token. |
FirewallAutoDetect | This property tells the class whether or not to automatically detect and use firewall system settings, if available. |
FirewallType | This property determines the type of firewall to connect through. |
FirewallHost | This property contains the name or IP address of firewall (optional). |
FirewallPassword | This property contains a password if authentication is to be used when connecting through the firewall. |
FirewallPort | This property contains the TCP port for the firewall Host . |
FirewallUser | This property contains a user name if authentication is to be used connecting through a firewall. |
Idle | The current status of the class. |
IncludeKeyDetails | Whether to attempt to retrieve fill details when listing keys. |
InputData | The data to process. |
InputFile | The file whose data should be processed. |
KeyMarker | A marker indicating what page of keys to return next. |
KeyCount | The number of records in the Key arrays. |
KeyCreationDate | The creation date of the key. |
KeyDeletionDate | The deletion date of the key. |
KeyEnabled | Whether the key is enabled. |
KeyExpiryDate | The expiration date of the key. |
KeyOps | The operation that the key may be used for. |
KeyType | The key's type. |
KeyName | The name of the key. |
KeyNotBeforeDate | The 'not before' date of the key. |
KeyPublicKey | The key's public key. |
KeyPurgeDate | The purge date of the key. |
KeyRecoverableDays | The number of days the key will be recoverable if it gets deleted. |
KeyRecoveryLevel | The key's ability to be recovered and/or purged if it gets deleted. |
KeyUpdateDate | The update date of the key. |
KeyVersionId | The version Id of the key. |
LocalHost | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
OtherHeaders | Other headers as determined by the user (optional). |
OutputData | The output data. |
OutputFile | The file to which output data should be written. |
Overwrite | Whether the output file should be overwritten if necessary. |
ParsedHeaderCount | The number of records in the ParsedHeader arrays. |
ParsedHeaderField | This property contains the name of the HTTP header (same case as it is delivered). |
ParsedHeaderValue | This property contains the header contents. |
ProxyAuthScheme | This property is used to tell the class which type of authorization to perform when connecting to the proxy. |
ProxyAutoDetect | This property tells the class whether or not to automatically detect and use proxy system settings, if available. |
ProxyPassword | This property contains a password if authentication is to be used for the proxy. |
ProxyPort | This property contains the TCP port for the proxy Server (default 80). |
ProxyServer | If a proxy Server is given, then the HTTP request is sent to the proxy instead of the server otherwise specified. |
ProxySSL | This property determines when to use SSL for the connection to the proxy. |
ProxyUser | This property contains a user name, if authentication is to be used for the proxy. |
QueryParamCount | The number of records in the QueryParam arrays. |
QueryParamName | The name of the query parameter. |
QueryParamValue | The value of the query parameter. |
SSLAcceptServerCertEncoded | The certificate (PEM/base64 encoded). |
SSLCertEncoded | The certificate (PEM/base64 encoded). |
SSLCertStore | The name of the certificate store for the client certificate. |
SSLCertStorePassword | If the certificate store is of a type that requires a password, this property is used to specify that password in order to open the certificate store. |
SSLCertStoreType | The type of certificate store for this certificate. |
SSLCertSubject | The subject of the certificate used for client authentication. |
SSLServerCertEncoded | The certificate (PEM/base64 encoded). |
TagCount | The number of records in the Tag arrays. |
TagName | The name of the tag. |
TagValue | The value of the tag. |
Timeout | A timeout for the class. |
Vault | Selects a vault for the class to interact with. |
VersionMarker | A marker indicating what page of key versions to return next. |
Method List
The following is the full list of the methods of the class with short descriptions. Click on the links for further details.
AddQueryParam | Adds a query parameter to the QueryParams properties. |
AddTag | Adds an item to the Tags properties. |
BackupKey | Backs up a key. |
Config | Sets or retrieves a configuration setting. |
CreateKey | Creates a new key. |
Decrypt | Decrypts data using a key. |
DeleteKey | Deletes a key. |
DoEvents | Processes events from the internal message queue. |
Encrypt | Encrypts data using a key. |
GetKeyInfo | Gets a key's information and public key. |
ListKeys | Lists keys in the currently-selected vault. |
ListVersions | Lists versions of a key. |
PurgeKey | Permanently deletes a soft-deleted key. |
RecoverKey | Recovers a soft-deleted key. |
Reset | Resets the class to its initial state. |
RestoreKey | Restores a previously backed-up key to the vault. |
SendCustomRequest | Sends a custom request to the server. |
SetKeyEnabled | Enables or disables a key. |
Sign | Signs a message using a key. |
UnwrapKey | Unwraps a symmetric key. |
UpdateKey | Updates a key's information. |
Verify | Verifies a digital signature using a key. |
WrapKey | Wraps a symmetric key. |
Event List
The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.
EndTransfer | Fired when a document finishes transferring. |
Error | Information about errors during data delivery. |
Header | Fired every time a header line comes in. |
KeyList | Fires once for each key when listing keys. |
Log | Fires once for each log message. |
SSLServerAuthentication | Fired after the server presents its certificate to the client. |
SSLStatus | Shows the progress of the secure connection. |
StartTransfer | Fired when a document starts transferring (after the headers). |
TagList | Fires once for each tag returned when a key's information is retrieved. |
Transfer | Fired while a document transfers (delivers document). |
Configuration Settings
The following is a list of configuration settings for the class with short descriptions. Click on the links for further details.
AccumulatePages | Whether the class should accumulate subsequent pages of results when listing them. |
APIVersion | The Azure Key Vault API version that the class conforms to. |
CreateKeyEnabled | Whether new keys should be created in an enabled or disabled state. |
ExpiryDate | The expiry date to send for the key. |
GetDeleted | Whether the class should retrieve information about soft-deleted keys. |
MaxKeys | The maximum number of results to return when listing keys. |
MessageDigest | The message digest computed by the class during the last sign or verify operation, if any. |
NotBeforeDate | The 'not before' date to send for the key. |
RawRequest | Returns the data that was sent to the server. |
RawResponse | Returns the data that was received from the server. |
VersionId | The Id of the key version that the class should make requests against. |
XChildCount | The number of child elements of the current element. |
XChildName[i] | The name of the child element. |
XChildXText[i] | The inner text of the child element. |
XElement | The name of the current element. |
XParent | The parent of the current element. |
XPath | Provides a way to point to a specific element in the returned XML or JSON response. |
XSubTree | A snapshot of the current element in the document. |
XText | The text of the current element. |
AcceptEncoding | Used to tell the server which types of content encodings the client supports. |
AllowHTTPCompression | This property enables HTTP compression for receiving data. |
AllowHTTPFallback | Whether HTTP/2 connections are permitted to fallback to HTTP/1.1. |
Append | Whether to append data to LocalFile. |
Authorization | The Authorization string to be sent to the server. |
BytesTransferred | Contains the number of bytes transferred in the response data. |
ChunkSize | Specifies the chunk size in bytes when using chunked encoding. |
CompressHTTPRequest | Set to true to compress the body of a PUT or POST request. |
EncodeURL | If set to true the URL will be encoded by the class. |
FollowRedirects | Determines what happens when the server issues a redirect. |
GetOn302Redirect | If set to true the class will perform a GET on the new location. |
HTTP2HeadersWithoutIndexing | HTTP2 headers that should not update the dynamic header table with incremental indexing. |
HTTPVersion | The version of HTTP used by the class. |
IfModifiedSince | A date determining the maximum age of the desired document. |
KeepAlive | Determines whether the HTTP connection is closed after completion of the request. |
KerberosSPN | The Service Principal Name for the Kerberos Domain Controller. |
LogLevel | The level of detail that is logged. |
MaxRedirectAttempts | Limits the number of redirects that are followed in a request. |
NegotiatedHTTPVersion | The negotiated HTTP version. |
OtherHeaders | Other headers as determined by the user (optional). |
ProxyAuthorization | The authorization string to be sent to the proxy server. |
ProxyAuthScheme | The authorization scheme to be used for the proxy. |
ProxyPassword | A password if authentication is to be used for the proxy. |
ProxyPort | Port for the proxy server (default 80). |
ProxyServer | Name or IP address of a proxy server (optional). |
ProxyUser | A user name if authentication is to be used for the proxy. |
SentHeaders | The full set of headers as sent by the client. |
StatusLine | The first line of the last response from the server. |
TransferredData | The contents of the last response from the server. |
TransferredDataLimit | The maximum number of incoming bytes to be stored by the class. |
TransferredHeaders | The full set of headers as received from the server. |
TransferredRequest | The full request as sent by the client. |
UseChunkedEncoding | Enables or Disables HTTP chunked encoding for transfers. |
UseIDNs | Whether to encode hostnames to internationalized domain names. |
UsePlatformHTTPClient | Whether or not to use the platform HTTP client. |
UserAgent | Information about the user agent (browser). |
ConnectionTimeout | Sets a separate timeout value for establishing a connection. |
FirewallAutoDetect | Tells the class whether or not to automatically detect and use firewall system settings, if available. |
FirewallHost | Name or IP address of firewall (optional). |
FirewallPassword | Password to be used if authentication is to be used when connecting through the firewall. |
FirewallPort | The TCP port for the FirewallHost;. |
FirewallType | Determines the type of firewall to connect through. |
FirewallUser | A user name if authentication is to be used connecting through a firewall. |
KeepAliveInterval | The retry interval, in milliseconds, to be used when a TCP keep-alive packet is sent and no response is received. |
KeepAliveTime | The inactivity time in milliseconds before a TCP keep-alive packet is sent. |
Linger | When set to True, connections are terminated gracefully. |
LingerTime | Time in seconds to have the connection linger. |
LocalHost | The name of the local host through which connections are initiated or accepted. |
LocalPort | The port in the local host where the class binds. |
MaxLineLength | The maximum amount of data to accumulate when no EOL is found. |
MaxTransferRate | The transfer rate limit in bytes per second. |
ProxyExceptionsList | A semicolon separated list of hosts and IPs to bypass when using a proxy. |
TCPKeepAlive | Determines whether or not the keep alive socket option is enabled. |
TcpNoDelay | Whether or not to delay when sending packets. |
UseIPv6 | Whether to use IPv6. |
LogSSLPackets | Controls whether SSL packets are logged when using the internal security API. |
OpenSSLCADir | The path to a directory containing CA certificates. |
OpenSSLCAFile | Name of the file containing the list of CA's trusted by your application. |
OpenSSLCipherList | A string that controls the ciphers to be used by SSL. |
OpenSSLPrngSeedData | The data to seed the pseudo random number generator (PRNG). |
ReuseSSLSession | Determines if the SSL session is reused. |
SSLCACertFilePaths | The paths to CA certificate files on Unix/Linux. |
SSLCACerts | A newline separated list of CA certificate to use during SSL client authentication. |
SSLCheckCRL | Whether to check the Certificate Revocation List for the server certificate. |
SSLCipherStrength | The minimum cipher strength used for bulk encryption. |
SSLEnabledCipherSuites | The cipher suite to be used in an SSL negotiation. |
SSLEnabledProtocols | Used to enable/disable the supported security protocols. |
SSLEnableRenegotiation | Whether the renegotiation_info SSL extension is supported. |
SSLIncludeCertChain | Whether the entire certificate chain is included in the SSLServerAuthentication event. |
SSLNegotiatedCipher | Returns the negotiated ciphersuite. |
SSLNegotiatedCipherStrength | Returns the negotiated ciphersuite strength. |
SSLNegotiatedCipherSuite | Returns the negotiated ciphersuite. |
SSLNegotiatedKeyExchange | Returns the negotiated key exchange algorithm. |
SSLNegotiatedKeyExchangeStrength | Returns the negotiated key exchange algorithm strength. |
SSLNegotiatedProtocol | Returns the negotiated protocol version. |
SSLProvider | The name of the security provider to use. |
SSLSecurityFlags | Flags that control certificate verification. |
SSLServerCACerts | A newline separated list of CA certificate to use during SSL server certificate validation. |
TLS12SignatureAlgorithms | Defines the allowed TLS 1.2 signature algorithms when UseInternalSecurityAPI is True. |
TLS12SupportedGroups | The supported groups for ECC. |
TLS13KeyShareGroups | The groups for which to pregenerate key shares. |
TLS13SignatureAlgorithms | The allowed certificate signature algorithms. |
TLS13SupportedGroups | The supported groups for (EC)DHE key exchange. |
AbsoluteTimeout | Determines whether timeouts are inactivity timeouts or absolute timeouts. |
FirewallData | Used to send extra data to the firewall. |
InBufferSize | The size in bytes of the incoming queue of the socket. |
OutBufferSize | The size in bytes of the outgoing queue of the socket. |
BuildInfo | Information about the product's build. |
CodePage | The system code page used for Unicode to Multibyte translations. |
LicenseInfo | Information about the current license. |
ProcessIdleEvents | Whether the class uses its internal event loop to process events when the main thread is idle. |
SelectWaitMillis | The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process. |
UseInternalSecurityAPI | Tells the class whether or not to use the system security libraries or an internal implementation. |