[PKCS8]: Distinguish between no password and an empty string.

1 files changed, 6 insertions, 0 deletions

diff --git a/crypto/pkcs8/pkcs8.c b/crypto/pkcs8/pkcs8.c
index 175a8855..85af2063 100644
--- a/crypto/pkcs8/pkcs8.c
+++ b/crypto/pkcs8/pkcs8.c
@@ -83,6 +83,12 @@ static int ascii_to_ucs2(const char *ascii, size_t ascii_len,
   uint8_t *unitmp;
   size_t ulen, i;
 
+  if (!ascii) {
+    *out = NULL;
+    *out_len = 0;
+    return 1;
+  }
+
   ulen = ascii_len * 2 + 2;
   if (ulen < ascii_len) {
     return 0;