Commit 8faedb57 authored by Rocky Rococo's avatar Rocky Rococo
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Update wallet/faqs/no-bech32.rst, wallet/faqs/miner-fee-calc.rst,...

Update wallet/faqs/no-bech32.rst, wallet/faqs/miner-fee-calc.rst, wallet/faqs/lowest-tx-fees.rst, wallet/faqs/index.rst, wallet/faqs/faqs.rst, wallet/faqs/buy-btc.rst, wallet/faqs/address-reuse.rst, wallet/faqs/segwit-support.rst, wallet/faqs/samourai-permissions.rst files
parent 9d5797b9
The addresses that your wallet generates can be reused as many times as you want, but it is considered a privacy risk to do so, and address reuse is strongly discouraged.
You should try to avoid reusing addresses whenever possible, to maximize your privacy.
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.. .. _to-introduction:
Samourai is software designed to store and secure the BTC you already have. You cannot purchase BTC in Samourai.
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.. .. _to-introduction:
This is the Hub for Frequently Asked Questions.
Can I buy BTC in Samourai Wallet?
.. include:: ./buy-btc.rst
Third-party services show receive address as invalid
.. include:: ./no-bech32.rst
Is Segwit supported?
.. include:: ./segwit-support.rst
Can I reuse a bitcoin address from my wallet?
.. include:: ./address-reuse.rst
How are miner fees calculated?
.. include:: ./miner-fee-calc.rst
What Android permissions does Samourai make use of?
.. include:: ./samourai-permissions.rst
.. .. _to-introduction:
.. include:: ./faqs.rst
By default, Samourai Wallet errs on the side of increasing the blockchain privacy and plausible deniability of transactions. This focus has a side effect of increasing in the size of transactions created, thus increasing the overall cost of the miner fee when sending. The wallet can be fully configured for creating low fee transactions by following the steps shown below.
Step 1 - Open settings
Tap the three vertical dots on the top right of the toolbar and then tap Settings. This will launch the wallet settings screen, where all configuration will take place.
Step 2 - Disable like-typed outputs
From the main Settings screen tap the Transactions option. Disable the Receive change to like-typed outputs option by removing the checkmark from the checkbox. Like-typed outputs is a Samourai feature that improves your privacy on the blockchain.
Step 3 - Disable STONEWALL
STONEWALL is enabled by default for all transactions.
You can disable STONEWALL each time when sending a transaction, by toggling the STONEWALL toggle switch to the OFF position.
The toggle switch for STONEWALL is located on the Review Transaction screen, which is accessed by tapping the blue Review Transaction button on the bottom of the Send Screen in Samourai.
Disabling STONEWALL will result in much smaller transactions, at the loss of blockchain privacy.
Step 4 - Enable RBF
From the Transactions settings screen Enable the Spend using RBF option by adding a checkmark to the checkbox. Enabling RBF will allow you to later top-up low transaction fees.
The wallet is now properly configured for creating low fee transactions at the sacrifice of some privacy and plausible deniability gains.
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Bitcoin transactions are sent to the network with an extra fee attached. This fee is paid directly to the miner who adds the transaction to a block. Miner fees are based on the size of the transaction being sent in bytes. Miner fees are not impacted by the amount of bitcoin being spent.
The fee rate is generally measured in Satoshi/byte. A Satoshi is the smallest unit of bitcoin (0.00000001 BTC).
A standard bitcoin transaction is around 250 bytes.
So, for example a transaction with size of 250 bytes, and a fee rate of 100 sat/b would be calculated as:
*250 bytes * 100 satoshi per byte fee rate = 25,000 satoshis = 0.00025000 BTC*
In Samourai, you can set the miner fee of your choosing by using the Fee Slider on the Send Screen.
*Note: As a general rule, the more unspent outputs that are used to form a transaction, the larger the transaction will be in bytes.
By default, Samourai creates larger transactions than average due to some of its privacy features.
You can configure Samourai to create the smallest possible transactions to save extra on miner fees, though you would lose out on privacy features in doing so.*
If you attempt to scan the QR code for one of your Samourai wallet's receive addresses via a third-party service and see an error message, then the service you are using may not yet support bech32/Native Segwit addresses yet.
As of update 0.99.81 to Samourai, bech32 addresses are now the default address type used by the wallet. If you require another address type, they are still available via the advanced options on the Receive screen.
To change your receive address type to Segwit Compatibility or Legacy, simply tap the gearbox/settings icon at the bottom of the Receive screen in Samourai, and adjust your address type accordingly.
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You may be wondering why the Samourai Wallet app available from Google Play needs a certain permission. This article will try to explain what each permission is needed for and what exactly Samourai is doing once you give permission.
This permission is save an encrypted backup of your wallet on your device. This encrypted backup is used to restore your wallet and all associated metadata. Samourai saves this encrypted backup to your device filesystem by default. You may disable this functionality in the settings if you wish to prevent Samourai from using this permission, though it is highly discouraged.
This permission is required to use the device camera for scanning QR codes. This is a required permission
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Samourai fully supports segwit. The wallet by default has segwit enabled with native segwit addresses (BIP84/bech32) displayed.
You can optionally enable Segwit Compatibility (BIP49) addresses, or Legacy (BIP44) addresses on an on-demand basis.
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