Please note: The algorithm descriptions in English have been automatically translated. Errors may have been introduced in this process. For the original descriptions, go to the Dutch version of the Algorithm Register.

Cryptshare

This programme helps with secure mail. If you share important information, this programme makes sure you can do so securely.
Last change on 4th of June 2026, at 8:40 (CET) | Publication Standard 1.0
Publication category
Other algorithms
Impact assessment
Field not filled in.
Status
In use

General information

Theme

Organisation and business operations

Begin date

2023-01

Contact information

postbus@noordenveld.nl

Responsible use

Goal and impact

We use this computer programme to send information securely in the mail. If you mail important information, this programme helps protect the information in the mail.

Considerations

It is important as a municipality to mail securely. Employees send e-mails to people inside and outside the municipality every day. Sometimes these mails contain information that we are not allowed to send to just anyone. Keeping track with each other of what you all send is very complicated. It is also becoming increasingly difficult to send safe online messages and mails to each other. That is why we use a programme that helps us send e-mails securely.


Human intervention

The employee uses Outlook to send an e-mail securely with Cryptshare. Before sending the e-mail, the employee can choose or have a password created. This password must be given separately to the recipient. After sending, the password cannot be found.

The employee or someone outside the municipality can visit the municipality's Cryptshare site. First, the sender enters the e-mail address of the person to whom the e-mail goes. Then the sender receives a code for verification. Next, the sender enters the e-mail address of the recipient and the file. A password can also be chosen, which can be self-created or created automatically.

Risk management

The supplier of this computer programme checks whether the programme is working properly. If there are many errors, they notice it. They make sure the errors are fixed. We as a municipality can see in an overview whether the programme is working properly. Employees have to activate the programme themselves. If we do not do this, our e-mails are not safe.

Operations

Data

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Technical design

The message is encrypted when the programme is turned on. When you add an attachment to the mail, it is added and stored encrypted on the cryptshare server. The recipient receives an e-mail with a link to the file. To download this message, the recipient is given a password to view it.


External provider

Pointsharp

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