CryptMethod (Property)

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ExtendedInfo property and connection

See also

HFSQL properties

CryptMethod (Property)

In french: Cryptage

Not available with these kinds of connection

The Property Encryption allows to manage the type of encryption of the communication between the Client workstations and the HFSQL Server workstation.. You can:

Find out the type of encryption used for an HFSQL Client/Server connection.
Define the type of encryption used for the HFSQL Client/Server connection. In this case, if the connection is currently opened, it will be closed then re-opened with the new parameters during a first access to a data file that is using this connection.

Remark: The connection can correspond to:

a connection described in the data model editor,
a connection described by HConnect, HDescribeConnection or HOpenConnection.
a connection described by a Connection variable.

Versions 17 and later

This property is now available for iPhone/iPad applications.

New in version 17

This property is now available for iPhone/iPad applications.

Versions 18 and later

This property is now available in Windows Store Apps mode.

New in version 18

This property is now available in Windows Store Apps mode.

Remark: From version 19, HFSQL is the new name of HyperFileSQL.

Versions 21 and later

This property is now available in Universal Windows 10 App mode.

New in version 21

This property is now available in Universal Windows 10 App mode.

Versions 22 and later

This property is now available for Java applications.

This property is now available for Android applications.

This property is now available in Android Widget mode.

New in version 22

This property is now available for Java applications.

This property is now available for Android applications.

This property is now available in Android Widget mode.

This property is now available for Java applications.

This property is now available for Android applications.

This property is now available in Android Widget mode.

Example

MyConnection is Connection
// Describe the connection
MyConnection.User = "USER"
MyConnection.Password = "PASSWORD"
MyConnection.Server = "MYSERVER"
MyConnection.Database = "Database"
MyConnection.CryptMethod = hCryptRC5_16
MyConnection.Provider = hAccessHFClientServer
MyConnection.Access = hOReadWrite
MyConnection.ExtendedInfo = "Extended information"

HOpenConnection(MyConnection)

Syntax

Finding out the type of encryption for an HFSQL Client/Server connection Hide the details

<Type of encryption> = <Connection used>.Cryptage

<Type of encryption>: Constant

Returns the type of encryption used for the connection:
hCryptNo No encryption is performed
hCryptRC5_16 The connection between the server and the client computers is encrypted according to an optimized encryption algorithm (RC5 16 rounds on 128 bits)
hCryptStandard The connection between the server and the client computers is encrypted according to an optimized encryption algorithm on 128 bits

<Connection used>: Connection name

Name of connection used. This name was defined:
in the data model editor,
by HDescribeConnection or HOpenConnection,
by the Connection type.

Defining the type of encryption for a connection Hide the details

<Connection used>.Cryptage = <Type of encryption>

<Connection used>: Connection name

Name of connection used. This name was defined:
in the data model editor,
by HDescribeConnection or HOpenConnection,
by the Connection type.

<Type of encryption>: Constant

Defines the type of encryption used for the connection:
hCryptNo No encryption is performed
hCryptRC5_16 The connection between the server and the client computers is encrypted according to an optimized encryption algorithm (RC5 16 rounds on 128 bits).
hCryptStandard The connection between the server and the client computers is encrypted according to an optimized encryption algorithm on 128 bits.

Remarks

ExtendedInfo property and connection

Changing the encryption information of an Connection HFSQL Client/Server with the Property ExtendedInfo automatically updates the information returned by the Property CryptMethod (and vice versa).

Therefore, the following code line:

MyConnection.CryptMethod = hCryptRC5_16

will modify the ENCRYPTION option in the string of extended information.

Similarly, the following code line:

MyConnection.ExtendedInfo = "CRYPT=RC5_16"

to modify the Property CryptMethod.