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kdf_mod_mpi: fix size and use nbo
author
Florian Dold
<florian.dold@gmail.com>
Wed, 27 Nov 2019 11:47:44 +0000
(12:47 +0100)
committer
Florian Dold
<florian.dold@gmail.com>
Wed, 27 Nov 2019 11:47:44 +0000
(12:47 +0100)
src/util/crypto_kdf.c
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diff --git
a/src/util/crypto_kdf.c
b/src/util/crypto_kdf.c
index 92b2cf5c2663f47bf29dabf7e4a7c69f049550d2..1b3bd686f76680a30f5fdd02d6930f258e9e6ffc 100644
(file)
--- a/
src/util/crypto_kdf.c
+++ b/
src/util/crypto_kdf.c
@@
-132,7
+132,7
@@
GNUNET_CRYPTO_kdf_mod_mpi (gcry_mpi_t *r,
gcry_error_t rc;
unsigned int nbits;
size_t rsize;
- uint
32
_t ctr;
+ uint
16
_t ctr;
nbits = gcry_mpi_get_nbits (n);
/* GNUNET_assert (nbits > 512); */
@@
-143,12
+143,14
@@
GNUNET_CRYPTO_kdf_mod_mpi (gcry_mpi_t *r,
/* Ain't clear if n is always divisible by 8 */
uint8_t buf[ (nbits - 1) / 8 + 1 ];
+ uint16_t ctr_nbo = htons (ctr);
+
rc = GNUNET_CRYPTO_kdf (buf,
sizeof(buf),
xts, xts_len,
skm, skm_len,
ctx, strlen (ctx),
- &ctr
, sizeof(ctr
),
+ &ctr
_nbo, sizeof(ctr_nbo
),
NULL, 0);
GNUNET_assert (GNUNET_YES == rc);