def generate_from_secret(master_secret: bytes, count: int,
threshold: int) -> list:
"""
Generates new Shamir backup for 'master_secret'. Multiple groups are not yet supported.
"""
return slip39.generate_single_group_mnemonics_from_data(
master_secret, storage.get_slip39_identifier(), threshold, count)
def generate_from_secret(master_secret: bytes, count: int,
threshold: int) -> str:
"""
Generates new Shamir backup for 'master_secret'. Multiple groups are not yet supported.
"""
identifier, group_mnemonics = slip39.generate_single_group_mnemonics_from_data(
master_secret, threshold, count)
storage.set_slip39_iteration_exponent(slip39.DEFAULT_ITERATION_EXPONENT)
storage.set_slip39_identifier(identifier)
return group_mnemonics
async def backup_slip39_wallet(ctx: wire.Context, secret: bytes) -> None:
# get number of shares
await layout.slip39_show_checklist_set_shares(ctx)
shares_count = await layout.slip39_prompt_number_of_shares(ctx)
# get threshold
await layout.slip39_show_checklist_set_threshold(ctx, shares_count)
threshold = await layout.slip39_prompt_threshold(ctx, shares_count)
# generate the mnemonics
mnemonics = slip39.generate_single_group_mnemonics_from_data(
secret, storage.device.get_slip39_identifier(), threshold,
shares_count)
# show and confirm individual shares
await layout.slip39_show_checklist_show_shares(ctx, shares_count,
threshold)
await layout.slip39_show_and_confirm_shares(ctx, mnemonics)