ifDeviceCrypto
Encrypt and decrypt data using device-, app-, or model-scoped keys
Implemented By
| Name | Description |
|---|---|
| roDeviceCrypto | Encrypts and decrypts data on a device using a key that is unique per app, device, or model. |
Supported Methods
Encrypt (input as roByteArray, String as encType) as roByteArray
Description
Encrypts data on a device that is unique per device, app, or model.
Parameters
| Name | Type | Description |
|---|---|---|
| input | roByteArray | The data to be encrypted. |
| encType | String | The encryption key type, which is a string that may be set to "channel", "device", or "model": |
| encType | Description | |
| device | Encrypt data with a device unique key. This can be used to implement a secure storage-like algorithm. | |
| channel | Encrypt data with an app unique key This enables you to provision credentials, API tokens, or other data from the cloud to devices securely. Apps signed with same signing key will share the encryption key. | |
| model | Encrypt app with a model unique key This is similar to the "channel" encryption type, but with the scope limited to a specific model. |
Return Value
An roByteArray containing the encrypted data.
Decrypt (EncryptedData as roByteArray, String as encType) as roByteArray
Description
Decrypts data stored on a device that was previously encoded with the Encrypt() method.
Parameters
| Name | Type | Description |
|---|---|---|
| EncryptedData | roByteArray | The previously encoded data to be decrypted. |
| encType | String | The encryption key type, which is a string that may be set to "channel", "device", or "model" (see table below for details). |
Return Value
An roByteArray containing the decrypted data.
Example
You can use the Encrypt() and Decrypt() methods to encrypt plaintext on a Roku device
and then decode it, as demonstrated in the following example:
' store plaintext to be encrypted in an roByteArray
ba = CreateObject("roByteArray")
ba.FromAsciiString("plain text1")
' create roDeviceCrypto object and specify a device key
dc = CreateObject("roDeviceCrypto")
encType = "device"
' encrypt plaintext using the device key and store the encoded data in an roByteArray
encrypted = dc.Encrypt(ba, encType)
' decode the encrypted data and store the decrypted data in an roByteArray
if encrypted <> invalid then
decrypted = dc.Decrypt(encrypted, encType)
end ifUpdated about 2 months ago
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