mirror of
https://github.com/trezor/trezor-firmware.git
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a3aae9c234
Based on the testing feedback I've made slight modifications to the UI. Main points: - running on the full brightness during the process (previously dimmed, felt broken) - overlaying layout fix after transaction confirmation
58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
"""
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This step serves for an incremental hashing of tx.vin[i] to the tx_prefix_hasher
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after the sorting on tx.vin[i].ki. The sorting order was received in the previous step.
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Originally, this step also incrementaly hashed pseudo_output[i] to the full_message_hasher for
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RctSimple transactions with Borromean proofs (HF8).
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In later hard-forks, the pseudo_outputs were moved to the rctsig.prunable
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which is not hashed to the final signature, thus pseudo_output hashing has been removed
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(as we support only HF9 and HF10 now).
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"""
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from .state import State
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from apps.monero.layout import confirms
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from apps.monero.signing import offloading_keys
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from apps.monero.xmr import crypto
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if False:
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from trezor.messages.MoneroTransactionSourceEntry import (
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MoneroTransactionSourceEntry,
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)
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async def input_vini(
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state: State,
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src_entr: MoneroTransactionSourceEntry,
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vini_bin: bytes,
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vini_hmac: bytes,
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):
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from trezor.messages.MoneroTransactionInputViniAck import (
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MoneroTransactionInputViniAck,
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)
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await confirms.transaction_step(
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state, state.STEP_VINI, state.current_input_index + 1
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)
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if state.current_input_index >= state.input_count:
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raise ValueError("Too many inputs")
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state.current_input_index += 1
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# HMAC(T_in,i || vin_i)
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hmac_vini_comp = await offloading_keys.gen_hmac_vini(
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state.key_hmac,
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src_entr,
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vini_bin,
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state.source_permutation[state.current_input_index],
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)
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if not crypto.ct_equals(hmac_vini_comp, vini_hmac):
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raise ValueError("HMAC is not correct")
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"""
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Incremental hasing of tx.vin[i]
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"""
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state.tx_prefix_hasher.buffer(vini_bin)
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return MoneroTransactionInputViniAck()
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