Send Encryption Process

All Sends are automatically end-to-end encrypted, which means that WALLIX Enterprise Vault encrypts the data in the Send Link and the client-browser uses the encryption key to decrypt the data once received.

Send Link Anatomy

The Send Link is comprised of 3 elements:

https://<WALLIX Vault URL>/#/send/<send_id>/<encryption_key>

1. Secure HTTP Protocol: https//:
2. Vault URL: <WALLIX Vault URL>
3. URL Fragment: /#/send/<send_id>/<encryption_key> which contains the <send_id> and the <encryption_key>

Send Encryption

Here is how it works:

• When a Send is created a 128-bit secret key is generated for that Send.
• A 512-bit encryption key is derived from the 128-bit secret key.
• The Send is AES-256 encrypted using the derived 512-bit encryption. Data (plain text or file) and the Metadata (Name, Filenme, Notes, etc.) are included in the encryption.
• The Encrypted Send is uploaded to WALLIX Servers. The Send ID (used to identify the Send for decryption) is included in upload. The Encryption Key is not included in the upload.

Send Decryption

Here is how it works:

• When a Send Link is accessed, the Web Browser requests the Send Access Page from WALLIX Servers.
• The Send Access Page is returned from WALLIX Servers as a Web Vault Client.
• The URL Fragment (containing Send ID and Encryption Key) is parsed locally by the Web Vault Client.
• Using the parsed Send ID, the Data is requested from WALLIX Servers by the Web Vault Client.
• The Encryption Key is never included in Network Requests.
• The Encrypted Send is returned from WALLIX Servers to the Web Vault Client.
• Using the Encryption Key, the Encrypted Send is Decrypted locally by the Web Vault Client.

Send Security

In order to improve Send Security, two additional steps can also be taken when transmitting a Send. These  steps are optional.

1. Use Password Authentication

• When creating a Send, set a Password.
• Provide the Password to the Recipient via a separate channel.
• When the Recipient clicks the Send Link, they are obliged to successfully enter this password before accessing the Send.
• The Encrypted Send is then accessed and decrypted.

The Password is not included in Send Encryption or Decryption. It is only used for Authentication before the Encrypted Send can be accessed and decrypted.

2. Provide Encryption Key Separately

• Provide the Send Link without the Encryption key.
• Provide the Encryption Key via a separate channel.
• The URL should be reassembled to include the Encryption Key, as per the Send Link Anatomy.

The fully Reassembled Send Link is Required to Access the Send.