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Encryption Node

Understand what a Encryption node is and how to configure it

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The Encryption node enables you to encrypt a text or a string using either AWS Key Management Service or Webex Connect encryption.

To use AWS Key Management Service, you must have an account with AWS. During encrypting a text or a string, you need to specify the details provided by AWS such as Access key, Secret key, AWS region, Key ID, Encryption context key value in the Encryption screen.

When you double-click the Encryption node, the Encryption screen appears with two tabs: Configuration and Transition Actions. The Configuration tab enables you to configure the encryption settings whereas the Transitions tab provides configuring the node on-enter/on-leave operations.

Here is the node image:

Encryption Node

Encryption Node

Interface Elements

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Here is the description for the interface elements:

S. NoElementDescription
1Configuration tabUse this tab to configure the encryption settings using AMW Key Management Service or Webex Connect encryption.

Here is the description for these:

AWS Key Management Service method
Use this method if you have an account with AWS, and then furnish the following details provided by AWS:
Access Key and Secret Key: These are not your regular user name and password, but are special tokens and must be used together.
 AWS Region: This is the geographic area where the master key is generated.
Plain Text: In this field, specify the text, which you wish to encrypt.
 Key ID: This is created along with the secret key when the access keys are created.
Encryption Context (Key and Value): These are a set of non-secret key-value pairs. Providing encryption context makes the encryption request bound cryptographically to the cipher-text. The advantage with this is - same encryption context is required to decrypt (or decrypt and re-encrypt) the data.
 Grant Token: It is created to provide temporary permissions.

Webex Connect encryption method
Variable Name: Specify the variable in which the encrypted data is stored.
 Plain Text: Specify the text to be encrypted.
2Transition Actions tabUse this tab to configure node on-enter/on-leave operations.

Here is the description for the fields:

Add action link - Click it to view the Transition action fields.
3Input VariableClick this collapsible panel to view the list of all the available flow variables. You can search for a variable using the Search field. You can also add a variable to the flow variables list by clicking the Add new flow variable link at the bottom of the list.
4Output VariablesClick this collapsible panel to view the output variables. The data generated by the node is displayed as variables here.
5Node OutcomesClick this collapsible panel to view the list of possible node outcomes. You can also customize the node labels by clicking the Edit icon.

Encrypting a Text or String

You can encrypt a text or string in two steps: Configuring encryption settings and Transition actions. However, configuring transition actions is optional.

Here is the description for these steps:

Configuring Encryption Settings

  1. Double click the Encryption node.
    The Encryption screen appears.
  2. On the Encryption screen, click the Configuration tab if it is already not opened by default.
    The configuration fields appear.
  3. On the Configuration tab, from the Encryption Method drop-down box, select AMW Key Management Service or Webex Connect encryption.

If the selected method is AMW Key Management Service

  • Specify the Access Key and Secret Key provided to you by AWS.
  • Specify the AWS Region. This is the geographic area where the master key is generated
  • In the Plain Text field, enter the text to be encrypted.
  • In the Encryption Context area, specify the key and the corresponding value. These are a set a non-secret key-value pair.
  • Specify the Grant Token to provide temporary permissions.
    Note: Click Add New to provide more grant tokens.
  • Click the Save button at the bottom.
    The text is encrypted.

If the selected method is Webex Connect encryption

  • Specify the variable in which the encrypted data is stored.
  • Specify the text to be encrypted.
  • Click the Save button at the bottom.
    The text is encrypted.

Configuring Transitions

As part of configuring transition actions, you can configure on-enter/on-leave operations. However, configuring these are optional.

Here are the steps:

  1. On the Encryption screen, click the Transition Actions tab.
  2. On the Transition Actions tab, click Add Action.
    The Transition Actions area appears.
  3. On the Transition Actions area:
  • From the Time drop-down box, select On-enter or On-leave. For example, On-enter.
  • From the Acton drop-down box, select an action choosing from the pre-built options.

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Tip

To delete an event, click the delete button corresponding to that event. See the image below.

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Delete Button

  • Finally, click the Save button at the bottom.
    The transition actions are configured.

Updated 4 months ago