Tutorials/Basic Access Tutorial

Unrestricted wallet access

Showcasing unrestricted behavior we had so far in this tutorial

Before we start restricting wallet access we will demonstrate its current behavior.

Namely, we will show that users (signers) who do not own the wallet can control its balance and make transfer intents.

Current wallets and balances

As a refresher, we're going to display current data in our ledger that we created throughout this tutorial.

Let's first see the list of wallets:

$ minka wallet list

╔═════════════════════╤══════════╤══════════╤══════════╗
║  Handle             │  Bridge  │  Custom  │  Routes  ║
╟─────────────────────┼──────────┼──────────┼──────────╢
║  demo-bank-wallet   │  None    │          │  None    ║
╟─────────────────────┼──────────┼──────────┼──────────╢
║  settlement-wallet  │  None    │          │  None    ║
╚═════════════════════╧══════════╧══════════╧══════════╝

As well as their balances:

$ minka wallet balances settlement-wallet
Balances:
$0.00 (usd)
$ minka wallet balances demo-bank-wallet 
Balances:
$700.00 (usd)

And here are intents responsible for those balances:

$ minka intent list

╔════════════════════════════════════════════════════════════════════════════════════════════════════════════════╗
║  Handle                     Action               Source               Target         Amount          Status    ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  iBCFhzFpuCxuDI4hoErCp     Destroy    settlement-wallet                    -      $300.00    usd    completed  ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  eHFmr4O2iSrrxYGAmuRnt    Transfer     demo-bank-wallet    settlement-wallet      $300.00    usd    completed  ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  1tBaX8vZcH1V0bFmU7XKP       Issue                    -     demo-bank-wallet    $1,000.00    usd    completed  ║
╚════════════════════════════════════════════════════════════════════════════════════════════════════════════════╝

Demonstrating unrestricted access

Now, we will make 2 transactions:

  • the first one from demo-bank-wallet to settlement-wallet
    • sending $200.00
  • and the second one from settlement-wallet to demo-bank-wallet
    • sending back $100.00

However, both times we will use demo-bank signer (even though the settlement-wallet belongs to the clearinghouse and should not be controlled by any bank).

This should result in demo-bank-wallet having $600.00 and settlement-wallet having $100.00 in the end.

minka intent create
? Handle: Di4lviGf2J15UfCb7kg1K
? Action: transfer
? Source: demo-bank-wallet
? Target: settlement-wallet
? Symbol: usd
? Amount: 200
? Add another action? No
? Add custom data for this intent? No
? Signers: my-bank
? Signer password for my-bank [hidden]

Intent summary:
---------------------------------------------------------------------------
Handle: Di4lviGf2J15UfCb7kg1K

Action: transfer
 - Source: demo-bank-wallet
 - Target: settlement-wallet
 - Symbol: usd
 - Amount: $200.00


? Sign this intent using signer my-bank? Yes

✅ Intent signed and sent to ledger tutorial-ledger

Intent summary:
---------------------------------------------------------------------------
Handle: Di4lviGf2J15UfCb7kg1K

Action: transfer
 - Source: demo-bank-wallet
 - Target: settlement-wallet
 - Symbol: usd
 - Amount: $200.00


Access rules:
#0
  - Action: any
  - Signer:
    - public: fUXg1buyvzZ5RHXjty3Jwz1MKDKB/CKS+ssEWvrWdSk=
Luid: $int.-07zZfKm8K_QEm-WK

And now we're sending $100.00 back (still using the demo-bank signer).

minka intent create
? Handle: QB8ZYRhTdaZPPUidspuJ9
? Action: transfer
? Source: settlement-wallet
? Target: demo-bank-wallet
? Symbol: usd
? Amount: 100
? Add another action? No
? Add custom data for this intent? No
? Signers: my-bank
? Signer password for my-bank [hidden]

Intent summary:
---------------------------------------------------------------------------
Handle: QB8ZYRhTdaZPPUidspuJ9

Action: transfer
 - Source: settlement-wallet
 - Target: demo-bank-wallet
 - Symbol: usd
 - Amount: $100.00


? Sign this intent using signer my-bank? Yes

✅ Intent signed and sent to ledger tutorial-ledger

Intent summary:
---------------------------------------------------------------------------
Handle: QB8ZYRhTdaZPPUidspuJ9

Action: transfer
 - Source: settlement-wallet
 - Target: demo-bank-wallet
 - Symbol: usd
 - Amount: $100.00


Access rules:
#0
  - Action: any
  - Signer:
    - public: fUXg1buyvzZ5RHXjty3Jwz1MKDKB/CKS+ssEWvrWdSk=
Luid: $int.-07ze7YtT_zUaWahq

Again we can see that this transaction went through without any problems.

demo-bank signer successfully transferred balance from the wallet that belongs to a clearinghouse.

Here is the list of all intents:

$ minka intent list

╔════════════════════════════════════════════════════════════════════════════════════════════════════════════════╗
║  Handle                     Action               Source               Target         Amount          Status    ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  QB8ZYRhTdaZPPUidspuJ9    Transfer    settlement-wallet     demo-bank-wallet      $100.00    usd    completed  ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  Di4lviGf2J15UfCb7kg1K    Transfer     demo-bank-wallet    settlement-wallet      $200.00    usd    completed  ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  iBCFhzFpuCxuDI4hoErCp     Destroy    settlement-wallet                    -      $300.00    usd    completed  ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  eHFmr4O2iSrrxYGAmuRnt    Transfer     demo-bank-wallet    settlement-wallet      $300.00    usd    completed  ║
╟────────────────────────────────────────────────────────────────────────────────────────────────────────────────╢
║  1tBaX8vZcH1V0bFmU7XKP       Issue                    -     demo-bank-wallet    $1,000.00    usd    completed  ║
╚════════════════════════════════════════════════════════════════════════════════════════════════════════════════╝

And here are the final wallet balances:

$ minka wallet balances demo-bank-wallet
Balances:
$600.00 (usd)
$ minka wallet balances settlement-wallet
Balances:
$100.00 (usd)

Our next step is to limit the access to wallets and only allow its owner to move the funds/balances.

Explaining wallet access

Why initial wallet access setup is not enough

Managing wallet access

Ensuring only the wallet owner has the control over the wallet

On this page

Current wallets and balances
Demonstrating unrestricted access