rsaenh: Explicitly clear unused memory when exporting a public key.

1004b57c · Juan Lang · Alexandre Julliard · 49c11910 · 1004b57c
Commit 1004b57c authored Nov 05, 2009 by Juan Lang Committed by Alexandre Julliard Nov 09, 2009
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implglue.c dlls/rsaenh/implglue.c +3 -0

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--- a/dlls/rsaenh/implglue.c
+++ b/dlls/rsaenh/implglue.c
@@ -362,6 +362,9 @@ BOOL export_public_key_impl(BYTE *pbDest, const KEY_CONTEXT *pKeyContext, DWORD 
 {
    mp_to_unsigned_bin(&pKeyContext->rsa.N, pbDest);
    reverse_bytes(pbDest, dwKeyLen);
+    if (mp_unsigned_bin_size(&pKeyContext->rsa.N) < dwKeyLen)
+        memset(pbDest + mp_unsigned_bin_size(&pKeyContext->rsa.N), 0,
+               dwKeyLen - mp_unsigned_bin_size(&pKeyContext->rsa.N));
    *pdwPubExp = (DWORD)mp_get_int(&pKeyContext->rsa.e);
    return TRUE;
 }