From c04949e97877c7e9e362ab3022b2e7d4988b3e37 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ulf=20M=C3=B6ller?= <ulf@openssl.org>
Date: Thu, 24 Feb 2000 23:37:15 +0000
Subject: [PATCH] work around a bug in BN_div_recp or BN_reciprocal

---
 crypto/bn/bn_recp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/crypto/bn/bn_recp.c b/crypto/bn/bn_recp.c
index 80539c5e2c..bc0787d75a 100644
--- a/crypto/bn/bn_recp.c
+++ b/crypto/bn/bn_recp.c
@@ -191,7 +191,16 @@ int BN_div_recp(BIGNUM *dv, BIGNUM *rem, BIGNUM *m, BN_RECP_CTX *recp,
 		{
 		if (j++ > 2)
 			{
+#if 1
+			/* work around some bug:
+			   -1CC0E177F93042B29D309839F8019DB93404D7A395F1E162
+			   5383BF622A20B17E1BAA999336988B82B93F5FB77B55B4B68
+			   9412000000000031 / 298EB5957DBFB8CBB2CC2A9F789D2B5
+			   fails, for example. */
+			ret=BN_div(dv,rem,a,&(recp->N),ctx);
+#else
 			BNerr(BN_F_BN_MOD_MUL_RECIPROCAL,BN_R_BAD_RECIPROCAL);
+#endif
 			goto err;
 			}
 		if (!BN_usub(r,r,&(recp->N))) goto err;
-- 
2.40.0