Mailing List Archive

* cipher/kyber.c (prg, pkprf): Cast variadic parameters to expected
types ('void *' and 'size_t').
--

Mismatch of variadic parameter integer types (int vs size_t) caused
shake256v to segfault on Win64.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
---
cipher/kyber.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/cipher/kyber.c b/cipher/kyber.c
index 1018cde6..c93ab812 100644
--- a/cipher/kyber.c
+++ b/cipher/kyber.c
@@ -381,8 +381,14 @@ static void kyber_shake128_absorb (keccak_state *state,
#define xof_close(STATE) shake128_close(STATE)
#define xof_absorb(STATE, SEED, X, Y) kyber_shake128_absorb(STATE, SEED, X, Y)
#define xof_squeezeblocks(OUT, OUTBLOCKS, STATE) shake128_squeeze(STATE, OUT, SHAKE128_RATE * OUTBLOCKS)
-#define prf(OUT, OUTBYTES, KEY, NONCE) shake256v(OUT, OUTBYTES, KEY, KYBER_SYMBYTES, &nonce, 1, NULL, 0)
-#define rkprf(OUT, KEY, INPUT) shake256v(OUT, KYBER_SSBYTES, KEY, KYBER_SYMBYTES, INPUT, KYBER_CIPHERTEXTBYTES, NULL, 0)
+#define prf(OUT, OUTBYTES, KEY, NONCE) \
+ shake256v(OUT, OUTBYTES, (void *)(KEY), (size_t)KYBER_SYMBYTES, \
+ (void *)&(NONCE), (size_t)1, \
+ NULL, (size_t)0)
+#define rkprf(OUT, KEY, INPUT) \
+ shake256v(OUT, KYBER_SSBYTES, (void *)(KEY), (size_t)KYBER_SYMBYTES, \
+ (void *)(INPUT), (size_t)KYBER_CIPHERTEXTBYTES, \
+ NULL, (size_t)0)

#include "kyber-common.c"

--
2.40.1


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