From af41a3d3ae0915817f12b0afd6055fdb72621c7e Mon Sep 17 00:00:00 2001 From: Rudolf Polzer Date: Fri, 9 Dec 2011 12:30:21 +0100 Subject: [PATCH] also add d0_blind_id_verify_private_id --- Makefile.am | 2 +- configure.ac | 2 +- d0_blind_id.c | 17 +++++++++++++++++ d0_blind_id.h | 1 + 4 files changed, 20 insertions(+), 2 deletions(-) diff --git a/Makefile.am b/Makefile.am index 3cb22c7..99122c4 100644 --- a/Makefile.am +++ b/Makefile.am @@ -23,7 +23,7 @@ else libd0_blind_id_la_SOURCES += d0_bignum-gmp.c endif endif -libd0_blind_id_la_LDFLAGS = -versioninfo 6:0:6 +libd0_blind_id_la_LDFLAGS = -versioninfo 7:0:7 libd0_blind_id_la_CFLAGS = -fvisibility=hidden -Wold-style-definition -Wstrict-prototypes -Wsign-compare -Wdeclaration-after-statement library_includedir = $(includedir)/d0_blind_id library_include_HEADERS = d0_blind_id.h d0.h diff --git a/configure.ac b/configure.ac index 5c98c65..83a8258 100644 --- a/configure.ac +++ b/configure.ac @@ -1,4 +1,4 @@ -AC_INIT([d0_blind_id],[0.4],[divVerent@xonotic.org]) +AC_INIT([d0_blind_id],[0.5],[divVerent@xonotic.org]) AC_CONFIG_MACRO_DIR([m4]) AM_INIT_AUTOMAKE([-Wall foreign]) AC_PROG_CC diff --git a/d0_blind_id.c b/d0_blind_id.c index 68d3c64..57ca8fd 100644 --- a/d0_blind_id.c +++ b/d0_blind_id.c @@ -1440,6 +1440,23 @@ fail: return 0; } +D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_verify_private_id(const d0_blind_id_t *ctx) +{ + USINGTEMPS(); // temps: temp0 = order, temp1 = g^s + USING(schnorr_G); USING(schnorr_s); USING(schnorr_g_to_s); + + LOCKTEMPS(); + CHECK(d0_dl_get_order(temp0, ctx->schnorr_G)); + CHECK(d0_bignum_mod_pow(temp1, four, ctx->schnorr_s, ctx->schnorr_G)); + CHECK(!d0_bignum_cmp(temp1, ctx->schnorr_g_to_s)); + UNLOCKTEMPS(); + return 1; + +fail: + UNLOCKTEMPS(); + return 0; +} + d0_blind_id_t *d0_blind_id_new(void) { d0_blind_id_t *b = d0_malloc(sizeof(d0_blind_id_t)); diff --git a/d0_blind_id.h b/d0_blind_id.h index c4f772a..bf838f4 100644 --- a/d0_blind_id.h +++ b/d0_blind_id.h @@ -76,6 +76,7 @@ D0_EXPORT D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_sign_with_private_id_verify( D0_EXPORT D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_sign_with_private_id_verify_detached(d0_blind_id_t *ctx, D0_BOOL is_first, D0_BOOL recv_modulus, const char *inbuf, size_t inbuflen, const char *msg, size_t msglen, D0_BOOL *status); D0_EXPORT D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_fingerprint64_public_id(const d0_blind_id_t *ctx, char *outbuf, size_t *outbuflen); D0_EXPORT D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_verify_public_id(const d0_blind_id_t *ctx, D0_BOOL *status); +D0_EXPORT D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_verify_private_id(const d0_blind_id_t *ctx); D0_EXPORT D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_sessionkey_public_id(const d0_blind_id_t *ctx, char *outbuf, size_t *outbuflen); // can only be done after successful key exchange, this performs a modpow; key length is limited by SHA_DIGESTSIZE for now; also ONLY valid after successful d0_blind_id_authenticate_with_private_id_verify/d0_blind_id_fingerprint64_public_id D0_EXPORT D0_WARN_UNUSED_RESULT D0_BOOL d0_blind_id_INITIALIZE(void); -- 2.39.2