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Diffstat (limited to 'src/crypto/curve25519.c')
-rw-r--r--src/crypto/curve25519.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/crypto/curve25519.c b/src/crypto/curve25519.c
index afc2a99..232c6d4 100644
--- a/src/crypto/curve25519.c
+++ b/src/crypto/curve25519.c
@@ -619,6 +619,10 @@ bool curve25519(u8 mypublic[CURVE25519_POINT_SIZE], const u8 secret[CURVE25519_P
bool curve25519_generate_public(u8 pub[CURVE25519_POINT_SIZE], const u8 secret[CURVE25519_POINT_SIZE])
{
static const u8 basepoint[CURVE25519_POINT_SIZE] __aligned(32) = { 9 };
+
+ if (unlikely(!crypto_memneq(secret, null_point, CURVE25519_POINT_SIZE)))
+ return false;
+
#ifdef CONFIG_X86_64
if (curve25519_use_avx && irq_fpu_usable()) {
kernel_fpu_begin();
@@ -1676,6 +1680,9 @@ bool curve25519_generate_public(u8 pub[CURVE25519_POINT_SIZE], const u8 secret[C
{
static const u8 basepoint[CURVE25519_POINT_SIZE] __aligned(32) = { 9 };
+ if (unlikely(!crypto_memneq(secret, null_point, CURVE25519_POINT_SIZE)))
+ return false;
+
return curve25519(pub, secret, basepoint);
}
#endif