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-rw-r--r--crypto.c142
1 files changed, 89 insertions, 53 deletions
diff --git a/crypto.c b/crypto.c
index 4b9faa0..71ee706 100644
--- a/crypto.c
+++ b/crypto.c
@@ -58,17 +58,17 @@ struct zkp_challenge_0og {
};
-static gcry_ctx_t ec_ctx;
-static gcry_mpi_point_t ec_gen;
-static gcry_mpi_point_t ec_zero;
-static gcry_mpi_t ec_n;
+static gcry_ctx_t ec_ctx;
+static gcry_mpi_point_t ec_gen;
+static gcry_mpi_point_t ec_zero;
+static gcry_mpi_t ec_n;
static struct GNUNET_CRYPTO_EccDlogContext *ec_dlogctx;
/**
* brandt_crypto_init initializes the crypto system and must be called before
* any other function from this file.
- *
+ *
* @param[in] dlogctx Pointer to the prepared dlog context.
*/
void
@@ -648,9 +648,9 @@ smc_gen_keyshare (struct BRANDT_Auction *ad, size_t *buflen)
int
smc_recv_keyshare (struct BRANDT_Auction *ad,
- const unsigned char *buf,
- size_t buflen,
- uint16_t sender)
+ const unsigned char *buf,
+ size_t buflen,
+ uint16_t sender)
{
int ret = 0;
struct proof_dl *proof1;
@@ -740,16 +740,16 @@ smc_encrypt_bid (struct BRANDT_Auction *ad, size_t *buflen)
int
smc_recv_encrypted_bid (struct BRANDT_Auction *ad,
- const unsigned char *buf,
- size_t buflen,
- uint16_t sender)
+ const unsigned char *buf,
+ size_t buflen,
+ uint16_t sender)
{
- int ret = 0;
- const unsigned char *cur = buf;
- struct proof_0og *proof3;
- gcry_mpi_point_t **ct; /* ciphertexts */
- gcry_mpi_point_t alpha_sum = gcry_mpi_point_new (0);
- gcry_mpi_point_t beta_sum = gcry_mpi_point_new (0);
+ int ret = 0;
+ const unsigned char *cur = buf;
+ struct proof_0og *proof3;
+ gcry_mpi_point_t **ct; /* ciphertexts */
+ gcry_mpi_point_t alpha_sum = gcry_mpi_point_new (0);
+ gcry_mpi_point_t beta_sum = gcry_mpi_point_new (0);
brandt_assert (ad && buf);
@@ -944,15 +944,15 @@ fp_pub_compute_outcome (struct BRANDT_Auction *ad, size_t *buflen)
int
fp_pub_recv_outcome (struct BRANDT_Auction *ad,
- const unsigned char *buf,
- size_t buflen,
- uint16_t sender)
+ const unsigned char *buf,
+ size_t buflen,
+ uint16_t sender)
{
- int ret = 0;
- const unsigned char *cur = buf;
- struct proof_2dle *proof2;
- gcry_mpi_point_t gamma = gcry_mpi_point_new (0);
- gcry_mpi_point_t delta = gcry_mpi_point_new (0);
+ int ret = 0;
+ const unsigned char *cur = buf;
+ struct proof_2dle *proof2;
+ gcry_mpi_point_t gamma = gcry_mpi_point_new (0);
+ gcry_mpi_point_t delta = gcry_mpi_point_new (0);
brandt_assert (ad && buf);
@@ -1058,14 +1058,14 @@ fp_pub_decrypt_outcome (struct BRANDT_Auction *ad, size_t *buflen)
int
fp_pub_recv_decryption (struct BRANDT_Auction *ad,
- const unsigned char *buf,
- size_t buflen,
- uint16_t sender)
+ const unsigned char *buf,
+ size_t buflen,
+ uint16_t sender)
{
- int ret = 0;
- const unsigned char *cur = buf;
- struct proof_2dle *proof2;
- gcry_mpi_point_t phi = gcry_mpi_point_new (0);
+ int ret = 0;
+ const unsigned char *cur = buf;
+ struct proof_2dle *proof2;
+ gcry_mpi_point_t phi = gcry_mpi_point_new (0);
brandt_assert (ad && buf);
@@ -1296,15 +1296,15 @@ fp_priv_compute_outcome (struct BRANDT_Auction *ad, size_t *buflen)
int
fp_priv_recv_outcome (struct BRANDT_Auction *ad,
- const unsigned char *buf,
- size_t buflen,
- uint16_t sender)
+ const unsigned char *buf,
+ size_t buflen,
+ uint16_t sender)
{
- int ret = 0;
- const unsigned char *cur = buf;
- struct proof_2dle *proof2;
- gcry_mpi_point_t gamma = gcry_mpi_point_new (0);
- gcry_mpi_point_t delta = gcry_mpi_point_new (0);
+ int ret = 0;
+ const unsigned char *cur = buf;
+ struct proof_2dle *proof2;
+ gcry_mpi_point_t gamma = gcry_mpi_point_new (0);
+ gcry_mpi_point_t delta = gcry_mpi_point_new (0);
brandt_assert (ad && buf);
@@ -1406,14 +1406,14 @@ fp_priv_decrypt_outcome (struct BRANDT_Auction *ad, size_t *buflen)
int
fp_priv_recv_decryption (struct BRANDT_Auction *ad,
- const unsigned char *buf,
- size_t buflen,
- uint16_t sender)
+ const unsigned char *buf,
+ size_t buflen,
+ uint16_t sender)
{
- int ret = 0;
- const unsigned char *cur = buf;
- struct proof_2dle *proof2;
- gcry_mpi_point_t phi = gcry_mpi_point_new (0);
+ int ret = 0;
+ const unsigned char *cur = buf;
+ struct proof_2dle *proof2;
+ gcry_mpi_point_t phi = gcry_mpi_point_new (0);
brandt_assert (ad && buf);
@@ -1511,7 +1511,13 @@ smc_zkp_dl (gcry_mpi_point_t v,
ec_point_serialize (&challenge.g, ec_gen);
ec_point_serialize (&challenge.v, v);
ec_point_serialize (&challenge.a, a);
- GNUNET_CRYPTO_kdf_mod_mpi (&c, ec_n, NULL, 0, &challenge, sizeof (challenge), "libbrandt zkp dl");
+ GNUNET_CRYPTO_kdf_mod_mpi (&c,
+ ec_n,
+ NULL,
+ 0,
+ &challenge,
+ sizeof (challenge),
+ "libbrandt zkp dl");
/* r = z + cx */
gcry_mpi_mulm (r, c, x, ec_n);
@@ -1554,7 +1560,13 @@ smc_zkp_dl_check (const gcry_mpi_point_t v,
ec_point_serialize (&challenge.g, ec_gen);
ec_point_serialize (&challenge.v, v);
ec_point_serialize (&challenge.a, a);
- GNUNET_CRYPTO_kdf_mod_mpi (&c, ec_n, NULL, 0, &challenge, sizeof (challenge), "libbrandt zkp dl");
+ GNUNET_CRYPTO_kdf_mod_mpi (&c,
+ ec_n,
+ NULL,
+ 0,
+ &challenge,
+ sizeof (challenge),
+ "libbrandt zkp dl");
/* rg =? a + cv */
gcry_mpi_ec_mul (left, r, ec_gen, ec_ctx);
@@ -1632,7 +1644,13 @@ smc_zkp_2dle (gcry_mpi_point_t v,
ec_point_serialize (&challenge.w, rw);
ec_point_serialize (&challenge.a, a);
ec_point_serialize (&challenge.b, b);
- GNUNET_CRYPTO_kdf_mod_mpi (&c, ec_n, NULL, 0, &challenge, sizeof (challenge), "libbrandt zkp 2dle");
+ GNUNET_CRYPTO_kdf_mod_mpi (&c,
+ ec_n,
+ NULL,
+ 0,
+ &challenge,
+ sizeof (challenge),
+ "libbrandt zkp 2dle");
/* r = z + cx */
gcry_mpi_mulm (r, c, rx, ec_n);
@@ -1694,7 +1712,13 @@ smc_zkp_2dle_check (const gcry_mpi_point_t v,
ec_point_serialize (&challenge.w, w);
ec_point_serialize (&challenge.a, a);
ec_point_serialize (&challenge.b, b);
- GNUNET_CRYPTO_kdf_mod_mpi (&c, ec_n, NULL, 0, &challenge, sizeof (challenge), "libbrandt zkp 2dle");
+ GNUNET_CRYPTO_kdf_mod_mpi (&c,
+ ec_n,
+ NULL,
+ 0,
+ &challenge,
+ sizeof (challenge),
+ "libbrandt zkp 2dle");
/* r*g1 =? a + cv */
gcry_mpi_ec_mul (left, r, g1, ec_ctx);
@@ -1825,7 +1849,13 @@ smc_zkp_0og (int m_is_gen,
ec_point_serialize (&challenge.a2, a2);
ec_point_serialize (&challenge.b1, b1);
ec_point_serialize (&challenge.b2, b2);
- GNUNET_CRYPTO_kdf_mod_mpi (&c, ec_n, NULL, 0, &challenge, sizeof (challenge), "libbrandt zkp 0og");
+ GNUNET_CRYPTO_kdf_mod_mpi (&c,
+ ec_n,
+ NULL,
+ 0,
+ &challenge,
+ sizeof (challenge),
+ "libbrandt zkp 0og");
if (!m_is_gen)
{ /* m == 0 */
@@ -1918,7 +1948,13 @@ smc_zkp_0og_check (const gcry_mpi_point_t y,
ec_point_serialize (&challenge.a2, a2);
ec_point_serialize (&challenge.b1, b1);
ec_point_serialize (&challenge.b2, b2);
- GNUNET_CRYPTO_kdf_mod_mpi (&c, ec_n, NULL, 0, &challenge, sizeof (challenge), "libbrandt zkp 0og");
+ GNUNET_CRYPTO_kdf_mod_mpi (&c,
+ ec_n,
+ NULL,
+ 0,
+ &challenge,
+ sizeof (challenge),
+ "libbrandt zkp 0og");
/* c == d1 + d2 */
gcry_mpi_addm (sum, d1, d2, ec_n);
generated by cgit v1.2.3 (git 2.39.1) at 2025-09-11 14:00:00 +0000