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[tor-commits] [tor] branch main updated: Add more test-vectors for key blinding.
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dgoulet pushed a commit to branch main
in repository tor.
The following commit(s) were added to refs/heads/main by this push:
new ee153db5a1 Add more test-vectors for key blinding.
ee153db5a1 is described below
commit ee153db5a17e2825077a255c4e3bb345f2351806
Author: Nick Mathewson <nickm@xxxxxxxxxxxxxx>
AuthorDate: Thu Jan 19 12:23:47 2023 -0500
Add more test-vectors for key blinding.
These are verified-as-correct against the current C implementation;
adding them here gives us something to copy into Arti.
---
src/feature/hs/hs_common.c | 2 +-
src/feature/hs/hs_common.h | 7 ++++++
src/test/test_hs_common.c | 56 ++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 64 insertions(+), 1 deletion(-)
diff --git a/src/feature/hs/hs_common.c b/src/feature/hs/hs_common.c
index e326581dd1..6547372161 100644
--- a/src/feature/hs/hs_common.c
+++ b/src/feature/hs/hs_common.c
@@ -432,7 +432,7 @@ get_second_cached_disaster_srv(void)
* thus will be ignored for the param construction.
*
* The result is put in param_out. */
-static void
+STATIC void
build_blinded_key_param(const ed25519_public_key_t *pubkey,
const uint8_t *secret, size_t secret_len,
uint64_t period_num, uint64_t period_length,
diff --git a/src/feature/hs/hs_common.h b/src/feature/hs/hs_common.h
index a7a8f23a3c..48c112110c 100644
--- a/src/feature/hs/hs_common.h
+++ b/src/feature/hs/hs_common.h
@@ -256,7 +256,14 @@ link_specifier_t *link_specifier_dup(const link_specifier_t *src);
#ifdef HS_COMMON_PRIVATE
+struct ed25519_public_key_t;
+
STATIC void get_disaster_srv(uint64_t time_period_num, uint8_t *srv_out);
+STATIC void build_blinded_key_param(
+ const struct ed25519_public_key_t *pubkey,
+ const uint8_t *secret, size_t secret_len,
+ uint64_t period_num, uint64_t period_length,
+ uint8_t *param_out);
/** The period for which a hidden service directory cannot be queried for
* the same descriptor ID again. */
diff --git a/src/test/test_hs_common.c b/src/test/test_hs_common.c
index 347a5b7174..e58945a8c3 100644
--- a/src/test/test_hs_common.c
+++ b/src/test/test_hs_common.c
@@ -1509,6 +1509,61 @@ test_reachability(void *arg)
}
}
+static void
+test_blinding_basics(void *arg)
+{
+ (void)arg;
+ char *mem_op_hex_tmp = NULL;
+ uint64_t time_period = 1234;
+ ed25519_keypair_t keypair;
+ const char pubkey_hex[] =
+ "833990B085C1A688C1D4C8B1F6B56AFAF5A2ECA674449E1D704F83765CCB7BC6";
+ const char seckey_hex[] =
+ "D8C7FF0E31295B66540D789AF3E3DF992038A9592EEA01D8B7CBA06D6E66D159"
+ "4D6167696320576F7264733A20737065697373636F62616C742062697669756D";
+ base16_decode((char*)keypair.pubkey.pubkey, sizeof(keypair.pubkey.pubkey),
+ pubkey_hex, strlen(pubkey_hex));
+ base16_decode((char*)keypair.seckey.seckey, sizeof(keypair.seckey.seckey),
+ seckey_hex, strlen(seckey_hex));
+
+ uint64_t period_len = get_time_period_length();
+ tt_u64_op(period_len, OP_EQ, 1440);
+ uint8_t params[32];
+ build_blinded_key_param(&keypair.pubkey, NULL, 0,
+ time_period, 1440,
+ params);
+ test_memeq_hex(params,
+ "379E50DB31FEE6775ABD0AF6FB7C371E"
+ "060308F4F847DB09FE4CFE13AF602287");
+
+ ed25519_public_key_t blinded_public;
+ hs_build_blinded_pubkey(&keypair.pubkey, NULL, 0, time_period,
+ &blinded_public);
+ hs_subcredential_t subcred;
+ hs_get_subcredential(&keypair.pubkey, &blinded_public, &subcred);
+
+ test_memeq_hex(blinded_public.pubkey,
+ "3A50BF210E8F9EE955AE0014F7A6917F"
+ "B65EBF098A86305ABB508D1A7291B6D5");
+ test_memeq_hex(subcred.subcred,
+ "635D55907816E8D76398A675A50B1C2F"
+ "3E36B42A5CA77BA3A0441285161AE07D");
+
+ ed25519_keypair_t blinded_keypair;
+ hs_build_blinded_keypair(&keypair, NULL, 0, time_period,
+ &blinded_keypair);
+ tt_mem_op(blinded_public.pubkey, OP_EQ, blinded_keypair.pubkey.pubkey,
+ ED25519_PUBKEY_LEN);
+ test_memeq_hex(blinded_keypair.seckey.seckey,
+ "A958DC83AC885F6814C67035DE817A2C"
+ "604D5D2F715282079448F789B656350B"
+ "4540FE1F80AA3F7E91306B7BF7A8E367"
+ "293352B14A29FDCC8C19F3558075524B");
+
+ done:
+ tor_free(mem_op_hex_tmp);
+}
+
/** Pick an HSDir for service with <b>onion_identity_pk</b> as a client. Put
* its identity digest in <b>hsdir_digest_out</b>. */
static void
@@ -1843,6 +1898,7 @@ test_client_service_hsdir_set_sync(void *arg)
}
struct testcase_t hs_common_tests[] = {
+ { "blinding_basics", test_blinding_basics, TT_FORK, NULL, NULL },
{ "build_address", test_build_address, TT_FORK,
NULL, NULL },
{ "validate_address", test_validate_address, TT_FORK,
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