def sign_digest(msg: EthereumSignTx, keychain, digest):
node = keychain.derive(msg.address_n)
signature = secp256k1.sign(node.private_key(), digest, False,
secp256k1.CANONICAL_SIG_ETHEREUM)
req = EthereumTxRequest()
req.signature_v = signature[0]
if msg.chain_id > MAX_CHAIN_ID:
req.signature_v -= 27
elif msg.chain_id:
req.signature_v += 2 * msg.chain_id + 8
req.signature_r = signature[1:33]
req.signature_s = signature[33:]
return req
async def send_signature(ctx, msg: EthereumSignTx, digest):
address_n = msg.address_n or ()
node = await seed.derive_node(ctx, address_n)
signature = secp256k1.sign(node.private_key(), digest, False, True)
req = EthereumTxRequest()
req.signature_v = signature[0]
if msg.chain_id > MAX_CHAIN_ID:
req.signature_v -= 27
elif msg.chain_id:
req.signature_v += 2 * msg.chain_id + 8
req.signature_r = signature[1:33]
req.signature_s = signature[33:]
return req
async def send_signature(ctx, msg: EthereumSignTx, digest):
from trezor.crypto.curve import secp256k1
from apps.common import seed
address_n = msg.address_n or ()
node = await seed.derive_node(ctx, address_n)
signature = secp256k1.sign(node.private_key(), digest, False)
req = EthereumTxRequest()
req.signature_v = signature[0]
if msg.chain_id:
req.signature_v += 2 * msg.chain_id + 8
req.signature_r = signature[1:33]
req.signature_s = signature[33:]
return req