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diff --git a/src/lib/libcrypto/objects/obj_xref.c b/src/lib/libcrypto/objects/obj_xref.c
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+++ b/src/lib/libcrypto/objects/obj_xref.c
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+/* crypto/objects/obj_xref.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <openssl/objects.h>
+#include "obj_xref.h"
+
+DECLARE_STACK_OF(nid_triple)
+STACK_OF(nid_triple) *sig_app, *sigx_app;
+
+static int sig_cmp(const nid_triple *a, const nid_triple *b)
+        {
+        return a->sign_id - b->sign_id;
+        }
+
+DECLARE_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig);
+IMPLEMENT_OBJ_BSEARCH_CMP_FN(nid_triple, nid_triple, sig);
+
+static int sig_sk_cmp(const nid_triple * const *a, const nid_triple * const *b)
+        {
+        return (*a)->sign_id - (*b)->sign_id;
+        }
+
+DECLARE_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx);
+
+static int sigx_cmp(const nid_triple * const *a, const nid_triple * const *b)
+        {
+        int ret;
+        ret = (*a)->hash_id - (*b)->hash_id;
+        if (ret)
+                return ret;
+        return (*a)->pkey_id - (*b)->pkey_id;
+        }
+
+IMPLEMENT_OBJ_BSEARCH_CMP_FN(const nid_triple *, const nid_triple *, sigx);
+
+int OBJ_find_sigid_algs(int signid, int *pdig_nid, int *ppkey_nid)
+        {
+        nid_triple tmp;
+        const nid_triple *rv = NULL;
+        tmp.sign_id = signid;
+
+        if (sig_app)
+                {
+                int idx = sk_nid_triple_find(sig_app, &tmp);
+                if (idx >= 0)
+                        rv = sk_nid_triple_value(sig_app, idx);
+                }
+
+#ifndef OBJ_XREF_TEST2
+        if (rv == NULL)
+                {
+                rv = OBJ_bsearch_sig(&tmp, sigoid_srt,
+                                 sizeof(sigoid_srt) / sizeof(nid_triple));
+                }
+#endif
+        if (rv == NULL)
+                return 0;
+        *pdig_nid = rv->hash_id;
+        *ppkey_nid = rv->pkey_id;
+        return 1;
+        }
+
+int OBJ_find_sigid_by_algs(int *psignid, int dig_nid, int pkey_nid)
+        {
+        nid_triple tmp;
+        const nid_triple *t=&tmp;
+        const nid_triple **rv = NULL;
+
+        tmp.hash_id = dig_nid;
+        tmp.pkey_id = pkey_nid;
+
+        if (sigx_app)
+                {
+                int idx = sk_nid_triple_find(sigx_app, &tmp);
+                if (idx >= 0)
+                        {
+                        t = sk_nid_triple_value(sigx_app, idx);
+                        rv = &t;
+                        }
+                }
+
+#ifndef OBJ_XREF_TEST2
+        if (rv == NULL)
+                {
+                rv = OBJ_bsearch_sigx(&t, sigoid_srt_xref,
+                                 sizeof(sigoid_srt_xref) / sizeof(nid_triple *)
+                                 );
+                }
+#endif
+        if (rv == NULL)
+                return 0;
+        *psignid = (*rv)->sign_id;
+        return 1;
+        }
+
+int OBJ_add_sigid(int signid, int dig_id, int pkey_id)
+        {
+        nid_triple *ntr;
+        if (!sig_app)
+                sig_app = sk_nid_triple_new(sig_sk_cmp);
+        if (!sig_app)
+                return 0;
+        if (!sigx_app)
+                sigx_app = sk_nid_triple_new(sigx_cmp);
+        if (!sigx_app)
+                return 0;
+        ntr = OPENSSL_malloc(sizeof(int) * 3);
+        if (!ntr)
+                return 0;
+        ntr->sign_id = signid;
+        ntr->hash_id = dig_id;
+        ntr->pkey_id = pkey_id;
+
+        if (!sk_nid_triple_push(sig_app, ntr))
+                {
+                OPENSSL_free(ntr);
+                return 0;
+                }
+
+        if (!sk_nid_triple_push(sigx_app, ntr))
+                return 0;
+
+        sk_nid_triple_sort(sig_app);
+        sk_nid_triple_sort(sigx_app);
+
+        return 1;
+        }
+
+static void sid_free(nid_triple *tt)
+        {
+        OPENSSL_free(tt);
+        }
+
+void OBJ_sigid_free(void)
+        {
+        if (sig_app)
+                {
+                sk_nid_triple_pop_free(sig_app, sid_free);
+                sig_app = NULL;
+                }
+        if (sigx_app)
+                {
+                sk_nid_triple_free(sigx_app);
+                sigx_app = NULL;
+                }
+        }
+                
+#ifdef OBJ_XREF_TEST
+
+main()
+        {
+        int n1, n2, n3;
+
+        int i, rv;
+#ifdef OBJ_XREF_TEST2
+        for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++)
+                {
+                OBJ_add_sigid(sigoid_srt[i][0], sigoid_srt[i][1],
+                                sigoid_srt[i][2]);
+                }
+#endif
+
+        for (i = 0; i < sizeof(sigoid_srt) / sizeof(nid_triple); i++)
+                {
+                n1 = sigoid_srt[i][0];
+                rv = OBJ_find_sigid_algs(n1, &n2, &n3);
+                printf("Forward: %d, %s %s %s\n", rv,
+                        OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3));
+                n1=0;
+                rv = OBJ_find_sigid_by_algs(&n1, n2, n3);
+                printf("Reverse: %d, %s %s %s\n", rv,
+                        OBJ_nid2ln(n1), OBJ_nid2ln(n2), OBJ_nid2ln(n3));
+                }
+        }
+        
+#endif