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whitelist: honour the documented parse initialization guarantee

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DarkWindman
2026-08-10 15:01:13 +03:00
parent 1de3864ff9
commit e8c3396597
2 changed files with 22 additions and 4 deletions
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7
src/modules/whitelist/tests_impl.h
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@@ -23,12 +23,17 @@ static void test_whitelist_end_to_end_internal(const unsigned char *summed_secke
/* Serialization round trip */
CHECK(secp256k1_whitelist_signature_serialize(CTX, serialized, &slen, &sig) == 1);
CHECK(slen == 33 + 32 * n_keys);
CHECK(secp256k1_whitelist_signature_parse(CTX, &sig1, serialized, slen) == 1);
/* (Check various bad-length conditions) */
CHECK(secp256k1_whitelist_signature_parse(CTX, &sig1, serialized, slen + 32) == 0);
CHECK(secp256k1_whitelist_signature_parse(CTX, &sig1, serialized, slen + 1) == 0);
CHECK(secp256k1_whitelist_signature_parse(CTX, &sig1, serialized, slen - 1) == 0);
CHECK(secp256k1_whitelist_signature_parse(CTX, &sig1, serialized, 0) == 0);
/* A failed parse must leave a signature that fails validation for any
* key set, as documented on secp256k1_whitelist_signature_parse. */
CHECK(secp256k1_whitelist_signature_n_keys(&sig1) > SECP256K1_WHITELIST_MAX_N_KEYS);
CHECK(secp256k1_whitelist_verify(CTX, &sig1, online_pubkeys, offline_pubkeys, n_keys, sub_pubkey) == 0);
/* Re-parse to restore a valid state. */
CHECK(secp256k1_whitelist_signature_parse(CTX, &sig1, serialized, slen) == 1);
CHECK(secp256k1_whitelist_verify(CTX, &sig1, online_pubkeys, offline_pubkeys, n_keys, sub_pubkey) == 1);
CHECK(secp256k1_whitelist_verify(CTX, &sig1, offline_pubkeys, online_pubkeys, n_keys, sub_pubkey) != 1);