From 575d9bac4b961176e4c847b122e74370f17c16b1 Mon Sep 17 00:00:00 2001 From: Tom St Denis Date: Fri, 30 Oct 2015 18:08:42 -0400 Subject: [PATCH] Add error check to mp_sqrtmod_prime() Signed-off-by: Tom St Denis --- bn_mp_sqrtmod_prime.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/bn_mp_sqrtmod_prime.c b/bn_mp_sqrtmod_prime.c index b1a0441..2f1b7a7 100644 --- a/bn_mp_sqrtmod_prime.c +++ b/bn_mp_sqrtmod_prime.c @@ -30,7 +30,9 @@ int mp_sqrtmod_prime(mp_int *n, mp_int *prime, mp_int *ret) if ((res = mp_jacobi(n, prime, &legendre)) != MP_OKAY) return res; if (legendre == -1) return MP_VAL; /* quadratic non-residue mod prime */ - mp_init_multi(&t1, &C, &Q, &S, &Z, &M, &T, &R, &two, NULL); + if ((res = mp_init_multi(&t1, &C, &Q, &S, &Z, &M, &T, &R, &two, NULL)) != MP_OKAY) { + return res; + } /* SPECIAL CASE: if prime mod 4 == 3 * compute directly: res = n^(prime+1)/4 mod prime