iOS and Android: Sample library and application

Version 1.2

Create an iOS or Android library, and a simple app that uses the library. The library should:

• Provide an endpoint/function that collects as much device information as possible (device name, model, IP address etc), encrypts and hashes it with a pre-defined secret, and returns the encrypted blob.

• Provide an endpoint/function that calls a REST API endpoint and delivers the encrypted blob with an application defined tag.

Remember:

• Good coding practices for your language and platform
• Tests, tests, tests.
• Create a github, gitlab or bitbucket repository for your code and share with us when done.
• Include a README as documentation of your notes, approach, results etc.

Device information

Generate as much device information as you can, store it in a JSON blob, and encrypt and hash it.

Use AES encryption with the key and (optionally) the iv below, and then perform a SHA1 hash of the result. If you have issues using the key in the format below, generate an AES key, and send it to us via email.

key=8C182623CD047A0D6593691B2179B98440A91AF01E4BB2BD90D49CC9E9D171E7
iv =8DB023E39C39B95EBC0155DA9F14C37D

Rest API call

API endpoint: https://api-staging.ravelin.com/v2/customer API key: secret_key_live_1Od41KPkFXqn9gR4KB8s5l3hvOaGAYqs

The /v2/customer API documentation here. More info on the Ravelin API is available here

Use your email address as customerId, and use the encrypted and hashed blob as a custom parameter called deviceInfo. Sample values for other parameters can be taken from the example in the documentation.

Authorization: token $key
Content-Type: application/json

{
    "timestamp": now(),
    "customer": {
        "customerId": "$email",
        "email": "$email",
        "name": "$name"
    },
    "device": {
        ..., 
        "custom": {
            ...
        }
    }
}

Test application

The test application can be as simple as needed, a single screen with a button for each function call in the library will be enough.