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feat(legacy): Allow coinjoin request debugging key for testnets.

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Andrew Kozlik 2023-01-20 15:22:29 +01:00 committed by matejcik
parent 4372d19ceb
commit c22b621195
1 changed files with 11 additions and 12 deletions
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23
legacy/firmware/signing.c
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@ -2455,18 +2455,19 @@ static bool coinjoin_confirm_tx(void) {
// Largest possible weight of an output supported by Trezor (P2TR or P2WSH). // Largest possible weight of an output supported by Trezor (P2TR or P2WSH).
const uint64_t MAX_OUTPUT_WEIGHT = 4 * (8 + 1 + 1 + 1 + 32); const uint64_t MAX_OUTPUT_WEIGHT = 4 * (8 + 1 + 1 + 1 + 32);
// Public keys for CoinJoin request signatures. // The public key used for verifying coinjoin requests in production on
// mainnet.
const uint8_t COINJOIN_REQ_PUBKEY[] = { const uint8_t COINJOIN_REQ_PUBKEY[] = {
0x02, 0x57, 0x03, 0xbb, 0xe1, 0x5b, 0xb0, 0x8e, 0x98, 0x21, 0xfe, 0x02, 0x57, 0x03, 0xbb, 0xe1, 0x5b, 0xb0, 0x8e, 0x98, 0x21, 0xfe,
0x64, 0xaf, 0xf6, 0xb2, 0xef, 0x1a, 0x31, 0x60, 0xe3, 0x79, 0x9d, 0x64, 0xaf, 0xf6, 0xb2, 0xef, 0x1a, 0x31, 0x60, 0xe3, 0x79, 0x9d,
0xd8, 0xf0, 0xce, 0xbf, 0x2c, 0x79, 0xe8, 0x67, 0xdd, 0x12, 0x5d}; 0xd8, 0xf0, 0xce, 0xbf, 0x2c, 0x79, 0xe8, 0x67, 0xdd, 0x12, 0x5d};
#if DEBUG_LINK
// secp256k1 public key of m/0h for "all all ... all" seed. // The public key used for verifying coinjoin requests on testnet and in debug
const uint8_t COINJOIN_REQ_PUBKEY_DEBUG[] = { // mode. secp256k1 public key of m/0h for "all all ... all" seed.
const uint8_t COINJOIN_REQ_PUBKEY_TEST[] = {
0x03, 0x0f, 0xdf, 0x5e, 0x28, 0x9b, 0x5a, 0xef, 0x53, 0x62, 0x90, 0x03, 0x0f, 0xdf, 0x5e, 0x28, 0x9b, 0x5a, 0xef, 0x53, 0x62, 0x90,
0x95, 0x3a, 0xe8, 0x1c, 0xe6, 0x0e, 0x84, 0x1f, 0xf9, 0x56, 0xf3, 0x95, 0x3a, 0xe8, 0x1c, 0xe6, 0x0e, 0x84, 0x1f, 0xf9, 0x56, 0xf3,
0x66, 0xac, 0x12, 0x3f, 0xa6, 0x9d, 0xb3, 0xc7, 0x9f, 0x21, 0xb0}; 0x66, 0xac, 0x12, 0x3f, 0xa6, 0x9d, 0xb3, 0xc7, 0x9f, 0x21, 0xb0};
#endif
// Finish hashing the CoinJoin request. // Finish hashing the CoinJoin request.
hasher_Update(&coinjoin_request_hasher, info.hash_prevouts, hasher_Update(&coinjoin_request_hasher, info.hash_prevouts,
@ -2477,16 +2478,14 @@ static bool coinjoin_confirm_tx(void) {
// Verify the CoinJoin request signature. // Verify the CoinJoin request signature.
uint8_t coinjoin_request_digest[SHA256_DIGEST_LENGTH] = {0}; uint8_t coinjoin_request_digest[SHA256_DIGEST_LENGTH] = {0};
hasher_Final(&coinjoin_request_hasher, coinjoin_request_digest); hasher_Final(&coinjoin_request_hasher, coinjoin_request_digest);
#if DEBUG_LINK if ((DEBUG_LINK || coin->coin_type == SLIP44_TESTNET) &&
if (ecdsa_verify_digest(&secp256k1, COINJOIN_REQ_PUBKEY_DEBUG, ecdsa_verify_digest(&secp256k1, COINJOIN_REQ_PUBKEY_TEST,
coinjoin_request.signature.bytes, coinjoin_request.signature.bytes,
coinjoin_request_digest) == 0) { coinjoin_request_digest) == 0) {
// success // success
} else } else if (ecdsa_verify_digest(&secp256k1, COINJOIN_REQ_PUBKEY,
#endif coinjoin_request.signature.bytes,
if (ecdsa_verify_digest(&secp256k1, COINJOIN_REQ_PUBKEY, coinjoin_request_digest) == 0) {
coinjoin_request.signature.bytes,
coinjoin_request_digest) == 0) {
// success // success
} else { } else {
fsm_sendFailure(FailureType_Failure_DataError, fsm_sendFailure(FailureType_Failure_DataError,