Alpha 3

Security



Samourai respects industry accepted standards and is always looking for new ways to enhance the security of your wallet.

Features
  • Military Grade Encryption

    Samourai is encrypted on the device using AES-256 encryption and never communicated with any servers.

  • Strong Default Protection with BIP 32, BIP 44 and BIP 39

    Samourai enforces a BIP 39 passphrase encryption on wallet creation, hardening the security of your wallet right out of the gate.

  • Secure PIN Login

    Use a 5-8 digit PIN to access your wallet. PIN screen is randomized on every load to thwart screen recording spyware.

  • You control your private keys

    Private keys are created and stored on your device and are never communicated with any server or anyone.

  • Certificate Pinning

    Protects HTTPS websites from impersonation using fraudulent certificates issued by compromised certificate authorities.

Privacy



Samourai has a deep rooted commitment to the belief in the importance of transactional privacy and strive to create the most private bitcoin wallet.

Features
  • No address reuse

    Samourai never reuses addresses, never leaking valuable metadata about you and your purchase habits.

    Samourai will alert you if you have sent to an address before, helping prevent unintentional address reuse.

  • Randomized change outputs

    Samourai is the only wallet to randomize the number of change outputs for each send, making gathering wallet address metadata more difficult.

  • Heterogeneous Input Script Transactions

    Samourai is the first to implement BIP 126: guidelines which minimize the uncontrolled disclosure of personally identifiable information by defining standard forms for transactions containing heterogenous input scripts.BIP 126

  • Avoid linking previous change outputs

    Samourai parses all previous transactions before building a new transaction to make sure it isn't leaking valuable metadata about your and your wallet

  • Tor and VPN Support

    Samourai is enabled with Tor and VPN support allowing you the ability to route all transactions through an anonymous IP address.

Send Bitcoin



Samourai constantly is tweaking our sending algorithms to provide you the most private sending possible.

Features
  • Bitcoin Network Health Monitoring

    Samourai actively monitors the condition of Bitcoin Network alerting you when transactions may confirm slower and informing you of the current required miner fee for quick transaction confirmation.

  • Send in your favorite currency

    Instant currency conversion makes it easier to send Bitcoin. Local currency exchange rates provided by localbitcoins, btc-e, or bitfinex

  • Smart Miner Fees

    Samourai offers three different miner fee profiles:
    Use Normal for an estimated confirmation time of 30 minutes
    Use Priority for confirmation in the next 0-1 blocks
    Use Low for an estimated confirmation time of 60 minutes.

  • Custom Miner Fees

    Optionally, set your own custom miner fee on a per transaction basis.

  • Replace By Fee (RBF)

    You can optionally flag transactions as RBF, allowing you later increase the miner fee of transactions for quicker confirmation.

  • Block Chain Obfuscation

    Enable BIP126 in settings to take full advantage of the latest obfuscation in Samourai

Public Payment Code



Payment codes are a brand new way to stealthily send and receive bitcoin with the help of a publicly shareable code.

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Features
  • Send bitcoin with just a tap

    Once you have connected to a contacts payment code simply tap on the contact to send bitcoin. The address is generated deterministically based on the shared secret connection.

  • Receive bitcoin seamlessly

    Your payment code can be shared publicly. It is static and unique to your wallet. Anyone who connects to your payment code will be able to send your wallet bitcoin without you needing to send them a bitcoin address.

  • Strict compliance with BIP 47 Spec

    Samourai is the first wallet to implement BIP 47 and have open sourced the code to encourage other wallet developers to implement this exciting technology.

Ricochet Send



Ricochet is an exclusive premium transaction that attempts to circumvent known bitcoin blacklists and keep your exchange accounts from getting frozen unfairly.

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Features
  • Reduce risk of 3rd party account closures

    Ricochet is designed to stump the blockchain spies that provide blacklists to bitcoin banks and exchanges that they use to freeze funds and suspend accounts.

  • Promote Bitcoin Fungibility

    Ricochet promotes fungibility in Bitcoin by actively working to disrupt the way blockchain spies attempt to create lists of "clean" and "dirty" coins. All coins are equal.

Trusted Node



Trusted Node allows you to connect to your personal bitcoin node to push transactions instead of our Iceland based bitcoin nodes.

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Features
  • Increased censorship resistance

    Connecting your trusted node means you don't have to rely on anyone but yourself to publish your transactions to the bitcoin network.

  • Standard Bitcoin RPC interface

    Samourai uses the existing RPC to interface with your node.

Stealth Mode & Remote Commands



To remotely retrieve your wallet seed for backup/restore. Send an SMS to your phone with the following message

SW seed YOUR_PIN_CODE

You will receive the HEX seed of your wallet in response which you can use to restore access to your bitcoin.




To remotely wipe your wallet send an SMS to your phone with the following message

SW wipe YOUR_PIN_CODE

You will receive confirmation that the wallet has been securely wiped from the device.




If your phone is stolen and the thief has switched the SIM Card you can still initiate remote commands. With Sim Switch Defence enabled Samourai will send your registered trusted number an SMS as soon as the SIM card is changed on your stolen phone. You can now send a remote wipe command to the new number




While in Stealth Mode Samourai will not appear on your phone home screen, app list, launcher, or recent apps. To open your wallet once it is in Stealth Mode you must dial a special code.

**YOUR_PIN_CODE#

If the code has been entered correctly Samourai Wallet will launch

My Samourai, my way.



Customize your wallet to your liking and take it with you anywhere you go.

Features
  • Export your wallet anywhere, anytime

    You may export your wallet to any Bitcoin wallet than follows BIP 39,44 specifications.

  • Restore any HD wallet

    You may restore an existing HD wallet from any wallet provider with or without a BIP 39 passphrase

  • Choose your fiat currency

    View transactions and make sends in your local fiat currency.

  • Choose your favorite Bitcoin unit

    BTC, mBTC, bits, It is up to you

  • Choose your favorite Block Explorer

    Most popular block explorers are available to view transactions on the web

Early Access Open Now

Samourai is available in the Google Play store