Apply by doing:

Apply by doing:
cd /usr/src
patch -p0 < 024_blinding.patch

And then rebuild and install OpenSSL:
rm -fr /usr/obj/lib/libssl
cd lib/libssl
make -f Makefile.bsd-wrapper obj
make -f Makefile.bsd-wrapper depend
make -f Makefile.bsd-wrapper
make -f Makefile.bsd-wrapper install

Index: lib/libssl/src/crypto/rsa/rsa_eay.c
===================================================================
RCS file: /cvs/src/lib/libssl/src/crypto/rsa/rsa_eay.c,v
retrieving revision 1.8
retrieving revision 1.8.4.1
diff -u -r1.8 -r1.8.4.1
--- lib/libssl/src/crypto/rsa/rsa_eay.c 22 Jun 2001 00:03:19 -0000 1.8
+++ lib/libssl/src/crypto/rsa/rsa_eay.c 19 Mar 2003 01:05:20 -0000 1.8.4.1
@@ -186,6 +186,26 @@
return(r);
}

+static int rsa_eay_blinding(RSA *rsa, BN_CTX *ctx)
+ {
+ int ret = 1;
+ CRYPTO_w_lock(CRYPTO_LOCK_RSA);
+ /* Check again inside the lock - the macro's check is racey */
+ if(rsa->blinding == NULL)
+ ret = RSA_blinding_on(rsa, ctx);
+ CRYPTO_w_unlock(CRYPTO_LOCK_RSA);
+ return ret;
+ }
+
+#define BLINDING_HELPER(rsa, ctx, err_instr) \
+ do { \
+ if(((rsa)->flags & RSA_FLAG_BLINDING) && \
+ ((rsa)->blinding == NULL) && \
+ !rsa_eay_blinding(rsa, ctx)) \
+ err_instr \
+ } while(0)
+
+/* signing */
static int RSA_eay_private_encrypt(int flen, unsigned char *from,
unsigned char *to, RSA *rsa, int padding)
{
@@ -224,8 +244,8 @@

if (BN_bin2bn(buf,num,&f) == NULL) goto err;

- if ((rsa->flags & RSA_FLAG_BLINDING) && (rsa->blinding == NULL))
- RSA_blinding_on(rsa,ctx);
+ BLINDING_HELPER(rsa, ctx, goto err;);
+
if (rsa->flags & RSA_FLAG_BLINDING)
if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err;

@@ -299,8 +319,8 @@
/* make data into a big number */
if (BN_bin2bn(from,(int)flen,&f) == NULL) goto err;

- if ((rsa->flags & RSA_FLAG_BLINDING) && (rsa->blinding == NULL))
- RSA_blinding_on(rsa,ctx);
+ BLINDING_HELPER(rsa, ctx, goto err;);
+
if (rsa->flags & RSA_FLAG_BLINDING)
if (!BN_BLINDING_convert(&f,rsa->blinding,ctx)) goto err;

Index: lib/libssl/src/crypto/rsa/rsa_lib.c
===================================================================
RCS file: /cvs/src/lib/libssl/src/crypto/rsa/rsa_lib.c,v
retrieving revision 1.5
retrieving revision 1.5.4.1
diff -u -r1.5 -r1.5.4.1
--- lib/libssl/src/crypto/rsa/rsa_lib.c 22 Jun 2001 00:03:19 -0000 1.5
+++ lib/libssl/src/crypto/rsa/rsa_lib.c 19 Mar 2003 01:05:20 -0000 1.5.4.1
@@ -72,7 +72,13 @@

RSA *RSA_new(void)
{
- return(RSA_new_method(NULL));
+ RSA *r=RSA_new_method(NULL);
+
+#ifndef OPENSSL_NO_FORCE_RSA_BLINDING
+ r->flags|=RSA_FLAG_BLINDING;
+#endif
+
+ return r;
}

void RSA_set_default_openssl_method(RSA_METHOD *meth)