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trezor-firmware/core/src/apps/ripple
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matejcik e972839ac7
style(all): fix pylint complaints 		3 years ago
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README.md MONOREPO CREATE FROM trezor-core 5 years ago
__init__.py refactor(core): move app registrations to a single handler function 3 years ago
base58_ripple.py MONOREPO CREATE FROM trezor-core 5 years ago
get_address.py refactor(core): convert apps.common to layouts 3 years ago
helpers.py style(all): fix pylint complaints 3 years ago
layout.py refactor(core/ui): move altcoin and webauthn layouts to separate file 3 years ago
serialize.py refactor(core): fix imports and use new protobuf API in apps 3 years ago
sign_tx.py refactor(core): fix imports and use new protobuf API in apps 3 years ago

README.md

Ripple

MAINTAINER = Tomas Susanka tomas.susanka@satoshilabs.com

AUTHOR = Tomas Susanka tomas.susanka@satoshilabs.com

REVIEWER = Jan Pochyla jan.pochyla@satoshilabs.com

Documentation

Ripple's documentation can be found here and on the deprecated wiki.

Transactions

Ripple has different transaction types, see the documentation for the structure and the list of all transaction types. The concept is somewhat similar to Stellar. However, Stellar's transaction is composed of operations, whereas in Ripple each transaction is simply of some transaction type.

We do not support transaction types other than the Payment transaction, which represents the simple "A pays to B" scenario. Other transaction types might be added later on.

We currently sign transactions using ECDSA and the secp256k1 curve same as in Bitcoin. Ripple also supports ed25519, which is currently not supported by Trezor, although the implementation would be quite straightforward.

Non-XRP currencies are not supported. Float and negative amounts are not supported.

Transactions Explorer

Bithomp seems to work fine.

Submitting a transaction

You can use ripple-lib and its submit method to publish a transaction into the Ripple network. Python-trezor returns a serialized signed transaction, which is exactly what you provide as an argument into the submit function.

Serialization format

Ripple uses its own serialization format. In a simple case, the first nibble of a first byte denotes the type and the second nibble the field. The actual data follow.

Our implementation in serialize.py is a simplification of the protocol tailored for the support of the Payment type exclusively.

Tests

Unit tests are located in the tests directory, device tests are in the python-trezor repository.