Small Issues & Maintenance

-=-=-=-=-=-=-=-=-=-=-=-=-=

-Begin work on Navigation Meshes (simple pathfinding for now, will improve soon)
-More doc on theme overriding
-Upgraded OpenSSL to version without bugs
-Misc bugfixes

1 files changed, 985 insertions, 0 deletions

diff --git a/drivers/builtin_openssl2/crypto/cms/cms_sd.c b/drivers/builtin_openssl2/crypto/cms/cms_sd.c
new file mode 100644
index 0000000000..51dd33a1c3
--- /dev/null
+++ b/drivers/builtin_openssl2/crypto/cms/cms_sd.c
@@ -0,0 +1,985 @@
+/* crypto/cms/cms_sd.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2008 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.
+ * ====================================================================
+ */
+
+#include "cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/pem.h>
+#include <openssl/x509v3.h>
+#include <openssl/err.h>
+#include <openssl/cms.h>
+#include "cms_lcl.h"
+#include "asn1_locl.h"
+
+/* CMS SignedData Utilities */
+
+DECLARE_ASN1_ITEM(CMS_SignedData)
+
+static CMS_SignedData *cms_get0_signed(CMS_ContentInfo *cms)
+	{
+	if (OBJ_obj2nid(cms->contentType) != NID_pkcs7_signed)
+		{
+		CMSerr(CMS_F_CMS_GET0_SIGNED, CMS_R_CONTENT_TYPE_NOT_SIGNED_DATA);
+		return NULL;
+		}
+	return cms->d.signedData;
+	}
+
+static CMS_SignedData *cms_signed_data_init(CMS_ContentInfo *cms)
+	{
+	if (cms->d.other == NULL)
+		{
+		cms->d.signedData = M_ASN1_new_of(CMS_SignedData);
+		if (!cms->d.signedData)
+			{
+			CMSerr(CMS_F_CMS_SIGNED_DATA_INIT, ERR_R_MALLOC_FAILURE);
+			return NULL;
+			}
+		cms->d.signedData->version = 1;
+		cms->d.signedData->encapContentInfo->eContentType =
+						OBJ_nid2obj(NID_pkcs7_data);
+		cms->d.signedData->encapContentInfo->partial = 1;
+		ASN1_OBJECT_free(cms->contentType);
+		cms->contentType = OBJ_nid2obj(NID_pkcs7_signed);
+		return cms->d.signedData;
+		}
+	return cms_get0_signed(cms);
+	}
+
+/* Just initialize SignedData e.g. for certs only structure */
+
+int CMS_SignedData_init(CMS_ContentInfo *cms)
+	{
+	if (cms_signed_data_init(cms))
+		return 1;
+	else
+		return 0;
+	}
+
+/* Check structures and fixup version numbers (if necessary) */
+
+static void cms_sd_set_version(CMS_SignedData *sd)
+	{
+	int i;
+	CMS_CertificateChoices *cch;
+	CMS_RevocationInfoChoice *rch;
+	CMS_SignerInfo *si;
+
+	for (i = 0; i < sk_CMS_CertificateChoices_num(sd->certificates); i++)
+		{
+		cch = sk_CMS_CertificateChoices_value(sd->certificates, i);
+		if (cch->type == CMS_CERTCHOICE_OTHER)
+			{
+			if (sd->version < 5)
+				sd->version = 5;
+			}
+		else if (cch->type == CMS_CERTCHOICE_V2ACERT)
+			{
+			if (sd->version < 4)
+				sd->version = 4;
+			}
+		else if (cch->type == CMS_CERTCHOICE_V1ACERT)
+			{
+			if (sd->version < 3)
+				sd->version = 3;
+			}
+		}
+
+	for (i = 0; i < sk_CMS_RevocationInfoChoice_num(sd->crls); i++)
+		{
+		rch = sk_CMS_RevocationInfoChoice_value(sd->crls, i);
+		if (rch->type == CMS_REVCHOICE_OTHER)
+			{
+			if (sd->version < 5)
+				sd->version = 5;
+			}
+		}
+
+	if ((OBJ_obj2nid(sd->encapContentInfo->eContentType) != NID_pkcs7_data)
+			&& (sd->version < 3))
+		sd->version = 3;
+
+	for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++)
+		{
+		si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
+		if (si->sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
+			{
+			if (si->version < 3)
+				si->version = 3;
+			if (sd->version < 3)
+				sd->version = 3;
+			}
+		else if (si->version < 1)
+			si->version = 1;
+		}
+
+	if (sd->version < 1)
+		sd->version = 1;
+
+	}
+	
+/* Copy an existing messageDigest value */
+
+static int cms_copy_messageDigest(CMS_ContentInfo *cms, CMS_SignerInfo *si)
+	{
+	STACK_OF(CMS_SignerInfo) *sinfos;
+	CMS_SignerInfo *sitmp;
+	int i;
+	sinfos = CMS_get0_SignerInfos(cms);
+	for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
+		{
+		ASN1_OCTET_STRING *messageDigest;
+		sitmp = sk_CMS_SignerInfo_value(sinfos, i);
+		if (sitmp == si)
+			continue;
+		if (CMS_signed_get_attr_count(sitmp) < 0)
+			continue;
+		if (OBJ_cmp(si->digestAlgorithm->algorithm,
+				sitmp->digestAlgorithm->algorithm))
+			continue;
+		messageDigest = CMS_signed_get0_data_by_OBJ(sitmp,
+					OBJ_nid2obj(NID_pkcs9_messageDigest),
+					-3, V_ASN1_OCTET_STRING);
+		if (!messageDigest)
+			{
+			CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST,
+				CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
+			return 0;
+			}
+
+		if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
+						V_ASN1_OCTET_STRING,
+						messageDigest, -1))
+			return 1;
+		else
+			return 0;
+		}
+		CMSerr(CMS_F_CMS_COPY_MESSAGEDIGEST, CMS_R_NO_MATCHING_DIGEST);
+		return 0;
+	}
+
+int cms_set1_SignerIdentifier(CMS_SignerIdentifier *sid, X509 *cert, int type)
+	{
+	switch(type)
+		{
+		case CMS_SIGNERINFO_ISSUER_SERIAL:
+		sid->d.issuerAndSerialNumber =
+			M_ASN1_new_of(CMS_IssuerAndSerialNumber);
+		if (!sid->d.issuerAndSerialNumber)
+			goto merr;
+		if (!X509_NAME_set(&sid->d.issuerAndSerialNumber->issuer,
+					X509_get_issuer_name(cert)))
+			goto merr;
+		if (!ASN1_STRING_copy(
+			sid->d.issuerAndSerialNumber->serialNumber,
+				X509_get_serialNumber(cert)))
+			goto merr;
+		break;
+
+		case CMS_SIGNERINFO_KEYIDENTIFIER:
+		if (!cert->skid)
+			{
+			CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER,
+					CMS_R_CERTIFICATE_HAS_NO_KEYID);
+			return 0;
+			}
+		sid->d.subjectKeyIdentifier = ASN1_STRING_dup(cert->skid);
+		if (!sid->d.subjectKeyIdentifier)
+			goto merr;
+		break;
+
+		default:
+		CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, CMS_R_UNKNOWN_ID);
+		return 0;
+		}
+
+	sid->type = type;
+
+	return 1;
+
+	merr:
+	CMSerr(CMS_F_CMS_SET1_SIGNERIDENTIFIER, ERR_R_MALLOC_FAILURE);
+	return 0;
+
+	}
+
+int cms_SignerIdentifier_get0_signer_id(CMS_SignerIdentifier *sid,
+					ASN1_OCTET_STRING **keyid,
+					X509_NAME **issuer, ASN1_INTEGER **sno)
+	{
+	if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL)
+		{
+		if (issuer)
+			*issuer = sid->d.issuerAndSerialNumber->issuer;
+		if (sno)
+			*sno = sid->d.issuerAndSerialNumber->serialNumber;
+		}
+	else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
+		{
+		if (keyid)
+			*keyid = sid->d.subjectKeyIdentifier;
+		}
+	else
+		return 0;
+	return 1;
+	}
+
+int cms_SignerIdentifier_cert_cmp(CMS_SignerIdentifier *sid, X509 *cert)
+	{
+	int ret;
+	if (sid->type == CMS_SIGNERINFO_ISSUER_SERIAL)
+		{
+		ret = X509_NAME_cmp(sid->d.issuerAndSerialNumber->issuer,
+					X509_get_issuer_name(cert));
+		if (ret)
+			return ret;
+		return ASN1_INTEGER_cmp(sid->d.issuerAndSerialNumber->serialNumber,
+					X509_get_serialNumber(cert));
+		}
+	else if (sid->type == CMS_SIGNERINFO_KEYIDENTIFIER)
+		{
+		X509_check_purpose(cert, -1, -1);
+		if (!cert->skid)
+			return -1;
+		return ASN1_OCTET_STRING_cmp(sid->d.subjectKeyIdentifier,
+							cert->skid);
+		}
+	else
+		return -1;
+	}
+
+CMS_SignerInfo *CMS_add1_signer(CMS_ContentInfo *cms,
+			X509 *signer, EVP_PKEY *pk, const EVP_MD *md,
+			unsigned int flags)
+	{
+	CMS_SignedData *sd;
+	CMS_SignerInfo *si = NULL;
+	X509_ALGOR *alg;
+	int i, type;
+	if(!X509_check_private_key(signer, pk))
+		{
+		CMSerr(CMS_F_CMS_ADD1_SIGNER,
+			CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
+                return NULL;
+		}
+	sd = cms_signed_data_init(cms);
+	if (!sd)
+		goto err;
+	si = M_ASN1_new_of(CMS_SignerInfo);
+	if (!si)
+		goto merr;
+	X509_check_purpose(signer, -1, -1);
+
+	CRYPTO_add(&pk->references, 1, CRYPTO_LOCK_EVP_PKEY);
+	CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
+
+	si->pkey = pk;
+	si->signer = signer;
+
+	if (flags & CMS_USE_KEYID)
+		{
+		si->version = 3;
+		if (sd->version < 3)
+			sd->version = 3;
+		type = CMS_SIGNERINFO_KEYIDENTIFIER;
+		}
+	else
+		{
+		type = CMS_SIGNERINFO_ISSUER_SERIAL;
+		si->version = 1;
+		}
+
+	if (!cms_set1_SignerIdentifier(si->sid, signer, type))
+		goto err;
+
+	if (md == NULL)
+		{
+		int def_nid;
+		if (EVP_PKEY_get_default_digest_nid(pk, &def_nid) <= 0)
+			goto err;
+		md = EVP_get_digestbynid(def_nid);
+		if (md == NULL)
+			{
+			CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DEFAULT_DIGEST);
+			goto err;
+			}
+		}
+
+	if (!md)
+		{
+		CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_NO_DIGEST_SET);
+		goto err;
+		}
+
+	cms_DigestAlgorithm_set(si->digestAlgorithm, md);
+
+	/* See if digest is present in digestAlgorithms */
+	for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
+		{
+		ASN1_OBJECT *aoid;
+		alg = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
+		X509_ALGOR_get0(&aoid, NULL, NULL, alg);
+		if (OBJ_obj2nid(aoid) == EVP_MD_type(md))
+			break;
+		}
+
+	if (i == sk_X509_ALGOR_num(sd->digestAlgorithms))
+		{
+		alg = X509_ALGOR_new();
+		if (!alg)
+			goto merr;
+		cms_DigestAlgorithm_set(alg, md);
+		if (!sk_X509_ALGOR_push(sd->digestAlgorithms, alg))
+			{
+			X509_ALGOR_free(alg);
+			goto merr;
+			}
+		}
+
+	if (pk->ameth && pk->ameth->pkey_ctrl)
+		{
+		i = pk->ameth->pkey_ctrl(pk, ASN1_PKEY_CTRL_CMS_SIGN,
+						0, si);
+		if (i == -2)
+			{
+			CMSerr(CMS_F_CMS_ADD1_SIGNER,
+				CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
+			goto err;
+			}
+		if (i <= 0)
+			{
+			CMSerr(CMS_F_CMS_ADD1_SIGNER, CMS_R_CTRL_FAILURE);
+			goto err;
+			}
+		}
+
+	if (!(flags & CMS_NOATTR))
+		{
+		/* Initialialize signed attributes strutucture so other
+		 * attributes such as signing time etc are added later
+		 * even if we add none here.
+		 */
+		if (!si->signedAttrs)
+			{
+			si->signedAttrs = sk_X509_ATTRIBUTE_new_null();
+			if (!si->signedAttrs)
+				goto merr;
+			}
+
+		if (!(flags & CMS_NOSMIMECAP))
+			{
+			STACK_OF(X509_ALGOR) *smcap = NULL;
+			i = CMS_add_standard_smimecap(&smcap);
+			if (i)
+				i = CMS_add_smimecap(si, smcap);
+			sk_X509_ALGOR_pop_free(smcap, X509_ALGOR_free);
+			if (!i)
+				goto merr;
+			}
+		if (flags & CMS_REUSE_DIGEST)
+			{
+			if (!cms_copy_messageDigest(cms, si))
+				goto err;
+			if (!(flags & CMS_PARTIAL) &&
+					!CMS_SignerInfo_sign(si))
+				goto err;
+			}
+		}
+
+	if (!(flags & CMS_NOCERTS))
+		{
+		/* NB ignore -1 return for duplicate cert */
+		if (!CMS_add1_cert(cms, signer))
+			goto merr;
+		}
+
+	if (!sd->signerInfos)
+		sd->signerInfos = sk_CMS_SignerInfo_new_null();
+	if (!sd->signerInfos ||
+		!sk_CMS_SignerInfo_push(sd->signerInfos, si))
+		goto merr;
+
+	return si;
+
+	merr:
+	CMSerr(CMS_F_CMS_ADD1_SIGNER, ERR_R_MALLOC_FAILURE);
+	err:
+	if (si)
+		M_ASN1_free_of(si, CMS_SignerInfo);
+	return NULL;
+
+	}
+
+static int cms_add1_signingTime(CMS_SignerInfo *si, ASN1_TIME *t)
+	{
+	ASN1_TIME *tt;
+	int r = 0;
+	if (t)
+		tt = t;
+	else
+		tt = X509_gmtime_adj(NULL, 0);
+
+	if (!tt)
+		goto merr;
+
+	if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_signingTime,
+						tt->type, tt, -1) <= 0)
+		goto merr;
+
+	r = 1;
+
+	merr:
+
+	if (!t)
+		ASN1_TIME_free(tt);
+
+	if (!r)
+		CMSerr(CMS_F_CMS_ADD1_SIGNINGTIME, ERR_R_MALLOC_FAILURE);
+
+	return r;
+
+	}
+
+STACK_OF(CMS_SignerInfo) *CMS_get0_SignerInfos(CMS_ContentInfo *cms)
+	{
+	CMS_SignedData *sd;
+	sd = cms_get0_signed(cms);
+	if (!sd)
+		return NULL;
+	return sd->signerInfos;
+	}
+
+STACK_OF(X509) *CMS_get0_signers(CMS_ContentInfo *cms)
+	{
+	STACK_OF(X509) *signers = NULL;
+	STACK_OF(CMS_SignerInfo) *sinfos;
+	CMS_SignerInfo *si;
+	int i;
+	sinfos = CMS_get0_SignerInfos(cms);
+	for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
+		{
+		si = sk_CMS_SignerInfo_value(sinfos, i);
+		if (si->signer)
+			{
+			if (!signers)
+				{
+				signers = sk_X509_new_null();
+				if (!signers)
+					return NULL;
+				}
+			if (!sk_X509_push(signers, si->signer))
+				{
+				sk_X509_free(signers);
+				return NULL;
+				}
+			}
+		}
+	return signers;
+	}
+
+void CMS_SignerInfo_set1_signer_cert(CMS_SignerInfo *si, X509 *signer)
+	{
+	if (signer)
+		{
+		CRYPTO_add(&signer->references, 1, CRYPTO_LOCK_X509);
+		if (si->pkey)
+			EVP_PKEY_free(si->pkey);
+		si->pkey = X509_get_pubkey(signer);
+		}
+	if (si->signer)
+		X509_free(si->signer);
+	si->signer = signer;
+	}
+
+int CMS_SignerInfo_get0_signer_id(CMS_SignerInfo *si,
+					ASN1_OCTET_STRING **keyid,
+					X509_NAME **issuer, ASN1_INTEGER **sno)
+	{
+	return cms_SignerIdentifier_get0_signer_id(si->sid, keyid, issuer, sno);
+	}
+
+int CMS_SignerInfo_cert_cmp(CMS_SignerInfo *si, X509 *cert)
+	{
+	return cms_SignerIdentifier_cert_cmp(si->sid, cert);
+	}
+
+int CMS_set1_signers_certs(CMS_ContentInfo *cms, STACK_OF(X509) *scerts,
+				unsigned int flags)
+	{
+	CMS_SignedData *sd;
+	CMS_SignerInfo *si;
+	CMS_CertificateChoices *cch;
+	STACK_OF(CMS_CertificateChoices) *certs;
+	X509 *x;
+	int i, j;
+	int ret = 0;
+	sd = cms_get0_signed(cms);
+	if (!sd)
+		return -1;
+	certs = sd->certificates;
+	for (i = 0; i < sk_CMS_SignerInfo_num(sd->signerInfos); i++)
+		{
+		si = sk_CMS_SignerInfo_value(sd->signerInfos, i);
+		if (si->signer)
+			continue;
+
+		for (j = 0; j < sk_X509_num(scerts); j++)
+			{
+			x = sk_X509_value(scerts, j);
+			if (CMS_SignerInfo_cert_cmp(si, x) == 0)
+				{
+				CMS_SignerInfo_set1_signer_cert(si, x);
+				ret++;
+				break;
+				}
+			}
+
+		if (si->signer || (flags & CMS_NOINTERN))
+			continue;
+
+		for (j = 0; j < sk_CMS_CertificateChoices_num(certs); j++)
+			{
+			cch = sk_CMS_CertificateChoices_value(certs, j);
+			if (cch->type != 0)
+				continue;
+			x = cch->d.certificate;
+			if (CMS_SignerInfo_cert_cmp(si, x) == 0)
+				{
+				CMS_SignerInfo_set1_signer_cert(si, x);
+				ret++;
+				break;
+				}
+			}
+		}
+	return ret;
+	}
+
+void CMS_SignerInfo_get0_algs(CMS_SignerInfo *si, EVP_PKEY **pk, X509 **signer,
+					X509_ALGOR **pdig, X509_ALGOR **psig)
+	{
+	if (pk)
+		*pk = si->pkey;
+	if (signer)
+		*signer = si->signer;
+	if (pdig)
+		*pdig = si->digestAlgorithm;
+	if (psig)
+		*psig = si->signatureAlgorithm;
+	}
+
+static int cms_SignerInfo_content_sign(CMS_ContentInfo *cms,
+					CMS_SignerInfo *si, BIO *chain)
+	{
+	EVP_MD_CTX mctx;
+	int r = 0;
+	EVP_MD_CTX_init(&mctx);
+
+
+	if (!si->pkey)
+		{
+		CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN, CMS_R_NO_PRIVATE_KEY);
+		return 0;
+		}
+
+	if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
+		goto err;
+
+	/* If any signed attributes calculate and add messageDigest attribute */
+
+	if (CMS_signed_get_attr_count(si) >= 0)
+		{
+		ASN1_OBJECT *ctype =
+			cms->d.signedData->encapContentInfo->eContentType; 
+		unsigned char md[EVP_MAX_MD_SIZE];
+		unsigned int mdlen;
+		if (!EVP_DigestFinal_ex(&mctx, md, &mdlen))
+			goto err;
+		if (!CMS_signed_add1_attr_by_NID(si, NID_pkcs9_messageDigest,
+						V_ASN1_OCTET_STRING,
+						md, mdlen))
+			goto err;
+		/* Copy content type across */
+		if (CMS_signed_add1_attr_by_NID(si, NID_pkcs9_contentType,
+					V_ASN1_OBJECT, ctype, -1) <= 0)
+			goto err;
+		if (!CMS_SignerInfo_sign(si))
+			goto err;
+		}
+	else
+		{
+		unsigned char *sig;
+		unsigned int siglen;
+		sig = OPENSSL_malloc(EVP_PKEY_size(si->pkey));
+		if (!sig)
+			{
+			CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
+					ERR_R_MALLOC_FAILURE);
+			goto err;
+			}
+		if (!EVP_SignFinal(&mctx, sig, &siglen, si->pkey))
+			{
+			CMSerr(CMS_F_CMS_SIGNERINFO_CONTENT_SIGN,
+					CMS_R_SIGNFINAL_ERROR);
+			OPENSSL_free(sig);
+			goto err;
+			}
+		ASN1_STRING_set0(si->signature, sig, siglen);
+		}
+
+	r = 1;
+
+	err:
+	EVP_MD_CTX_cleanup(&mctx);
+	return r;
+
+	}
+
+int cms_SignedData_final(CMS_ContentInfo *cms, BIO *chain)
+	{
+	STACK_OF(CMS_SignerInfo) *sinfos;
+	CMS_SignerInfo *si;
+	int i;
+	sinfos = CMS_get0_SignerInfos(cms);
+	for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
+		{
+		si = sk_CMS_SignerInfo_value(sinfos, i);
+		if (!cms_SignerInfo_content_sign(cms, si, chain))
+			return 0;
+		}
+	cms->d.signedData->encapContentInfo->partial = 0;
+	return 1;
+	}
+
+int CMS_SignerInfo_sign(CMS_SignerInfo *si)
+	{
+	EVP_MD_CTX mctx;
+	EVP_PKEY_CTX *pctx;
+	unsigned char *abuf = NULL;
+	int alen;
+	size_t siglen;
+	const EVP_MD *md = NULL;
+
+	md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
+	if (md == NULL)
+		return 0;
+
+	EVP_MD_CTX_init(&mctx);
+
+	if (CMS_signed_get_attr_by_NID(si, NID_pkcs9_signingTime, -1) < 0)
+		{
+		if (!cms_add1_signingTime(si, NULL))
+			goto err;
+		}
+
+	if (EVP_DigestSignInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
+		goto err;
+
+	if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
+				EVP_PKEY_CTRL_CMS_SIGN, 0, si) <= 0)
+		{
+		CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
+		goto err;
+		}
+
+	alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
+				ASN1_ITEM_rptr(CMS_Attributes_Sign));
+	if(!abuf)
+		goto err;
+	if (EVP_DigestSignUpdate(&mctx, abuf, alen) <= 0)
+		goto err;
+	if (EVP_DigestSignFinal(&mctx, NULL, &siglen) <= 0)
+		goto err;
+	OPENSSL_free(abuf);
+	abuf = OPENSSL_malloc(siglen);
+	if(!abuf)
+		goto err;
+	if (EVP_DigestSignFinal(&mctx, abuf, &siglen) <= 0)
+		goto err;
+
+	if (EVP_PKEY_CTX_ctrl(pctx, -1, EVP_PKEY_OP_SIGN,
+				EVP_PKEY_CTRL_CMS_SIGN, 1, si) <= 0)
+		{
+		CMSerr(CMS_F_CMS_SIGNERINFO_SIGN, CMS_R_CTRL_ERROR);
+		goto err;
+		}
+
+	EVP_MD_CTX_cleanup(&mctx);
+
+	ASN1_STRING_set0(si->signature, abuf, siglen);
+
+	return 1;
+
+	err:
+	if (abuf)
+		OPENSSL_free(abuf);
+	EVP_MD_CTX_cleanup(&mctx);
+	return 0;
+
+	}
+
+int CMS_SignerInfo_verify(CMS_SignerInfo *si)
+	{
+	EVP_MD_CTX mctx;
+	EVP_PKEY_CTX *pctx;
+	unsigned char *abuf = NULL;
+	int alen, r = -1;
+	const EVP_MD *md = NULL;
+
+	if (!si->pkey)
+		{
+		CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_NO_PUBLIC_KEY);
+		return -1;
+		}
+
+	md = EVP_get_digestbyobj(si->digestAlgorithm->algorithm);
+	if (md == NULL)
+		return -1;
+	EVP_MD_CTX_init(&mctx);
+	if (EVP_DigestVerifyInit(&mctx, &pctx, md, NULL, si->pkey) <= 0)
+		goto err;
+
+	alen = ASN1_item_i2d((ASN1_VALUE *)si->signedAttrs,&abuf,
+				ASN1_ITEM_rptr(CMS_Attributes_Verify));
+	if(!abuf)
+		goto err;
+	r = EVP_DigestVerifyUpdate(&mctx, abuf, alen);
+	OPENSSL_free(abuf);
+	if (r <= 0)
+		{
+		r = -1;
+		goto err;
+		}
+	r = EVP_DigestVerifyFinal(&mctx,
+			si->signature->data, si->signature->length);
+	if (r <= 0)
+		CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY, CMS_R_VERIFICATION_FAILURE);
+	err:
+	EVP_MD_CTX_cleanup(&mctx);
+	return r;
+	}
+
+/* Create a chain of digest BIOs from a CMS ContentInfo */
+
+BIO *cms_SignedData_init_bio(CMS_ContentInfo *cms)
+	{
+	int i;
+	CMS_SignedData *sd;
+	BIO *chain = NULL;
+	sd = cms_get0_signed(cms);
+	if (!sd)
+		return NULL;
+	if (cms->d.signedData->encapContentInfo->partial)
+		cms_sd_set_version(sd);
+	for (i = 0; i < sk_X509_ALGOR_num(sd->digestAlgorithms); i++)
+		{
+		X509_ALGOR *digestAlgorithm;
+		BIO *mdbio;
+		digestAlgorithm = sk_X509_ALGOR_value(sd->digestAlgorithms, i);
+		mdbio = cms_DigestAlgorithm_init_bio(digestAlgorithm);
+		if (!mdbio)
+			goto err;	
+		if (chain)
+			 BIO_push(chain, mdbio);
+		else
+			chain = mdbio;
+		}
+	return chain;
+	err:
+	if (chain)
+		BIO_free_all(chain);
+	return NULL;
+	}
+
+int CMS_SignerInfo_verify_content(CMS_SignerInfo *si, BIO *chain)
+	{
+	ASN1_OCTET_STRING *os = NULL;
+	EVP_MD_CTX mctx;
+	int r = -1;
+	EVP_MD_CTX_init(&mctx);
+	/* If we have any signed attributes look for messageDigest value */
+	if (CMS_signed_get_attr_count(si) >= 0)
+		{
+		os = CMS_signed_get0_data_by_OBJ(si,
+					OBJ_nid2obj(NID_pkcs9_messageDigest),
+					-3, V_ASN1_OCTET_STRING);
+		if (!os)
+			{
+			CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
+				CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE);
+			goto err;
+			}
+		}
+
+	if (!cms_DigestAlgorithm_find_ctx(&mctx, chain, si->digestAlgorithm))
+		goto err;
+
+	/* If messageDigest found compare it */
+
+	if (os)
+		{
+		unsigned char mval[EVP_MAX_MD_SIZE];
+		unsigned int mlen;
+		if (EVP_DigestFinal_ex(&mctx, mval, &mlen) <= 0)
+			{
+			CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
+				CMS_R_UNABLE_TO_FINALIZE_CONTEXT);
+			goto err;
+			}
+		if (mlen != (unsigned int)os->length)
+			{
+			CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
+				CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH);
+			goto err;
+			}
+
+		if (memcmp(mval, os->data, mlen))
+			{
+			CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
+				CMS_R_VERIFICATION_FAILURE);
+			r = 0;
+			}
+		else
+			r = 1;
+		}
+	else
+		{
+		r = EVP_VerifyFinal(&mctx, si->signature->data,
+					si->signature->length, si->pkey);
+		if (r <= 0)
+			{
+			CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CONTENT,
+				CMS_R_VERIFICATION_FAILURE);
+			r = 0;
+			}
+		}
+
+	err:
+	EVP_MD_CTX_cleanup(&mctx);
+	return r;
+
+	}
+
+int CMS_add_smimecap(CMS_SignerInfo *si, STACK_OF(X509_ALGOR) *algs)
+	{
+	unsigned char *smder = NULL;
+	int smderlen, r;
+	smderlen = i2d_X509_ALGORS(algs, &smder);
+	if (smderlen <= 0)
+		return 0;
+	r = CMS_signed_add1_attr_by_NID(si, NID_SMIMECapabilities,
+					V_ASN1_SEQUENCE, smder, smderlen);
+	OPENSSL_free(smder);
+	return r;
+	}
+
+int CMS_add_simple_smimecap(STACK_OF(X509_ALGOR) **algs,
+				int algnid, int keysize)
+	{
+	X509_ALGOR *alg;
+	ASN1_INTEGER *key = NULL;
+	if (keysize > 0)
+		{
+		key = ASN1_INTEGER_new();
+		if (!key || !ASN1_INTEGER_set(key, keysize))
+			return 0;
+		}
+	alg = X509_ALGOR_new();
+	if (!alg)
+		{
+		if (key)
+			ASN1_INTEGER_free(key);
+		return 0;
+		}
+		
+	X509_ALGOR_set0(alg, OBJ_nid2obj(algnid),
+				key ? V_ASN1_INTEGER : V_ASN1_UNDEF, key);
+	if (!*algs)
+		*algs = sk_X509_ALGOR_new_null();
+	if (!*algs || !sk_X509_ALGOR_push(*algs, alg))
+		{
+		X509_ALGOR_free(alg);
+		return 0;
+		}
+	return 1;
+	}
+
+/* Check to see if a cipher exists and if so add S/MIME capabilities */
+
+static int cms_add_cipher_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
+	{
+	if (EVP_get_cipherbynid(nid))
+		return CMS_add_simple_smimecap(sk, nid, arg);
+	return 1;
+	}
+
+static int cms_add_digest_smcap(STACK_OF(X509_ALGOR) **sk, int nid, int arg)
+	{
+	if (EVP_get_digestbynid(nid))
+		return CMS_add_simple_smimecap(sk, nid, arg);
+	return 1;
+	}
+
+int CMS_add_standard_smimecap(STACK_OF(X509_ALGOR) **smcap)
+	{
+	if (!cms_add_cipher_smcap(smcap, NID_aes_256_cbc, -1)
+		|| !cms_add_digest_smcap(smcap, NID_id_GostR3411_94, -1)
+		|| !cms_add_cipher_smcap(smcap, NID_id_Gost28147_89, -1)
+		|| !cms_add_cipher_smcap(smcap, NID_aes_192_cbc, -1)
+		|| !cms_add_cipher_smcap(smcap, NID_aes_128_cbc, -1)
+		|| !cms_add_cipher_smcap(smcap, NID_des_ede3_cbc, -1)
+		|| !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 128)
+		|| !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 64)
+		|| !cms_add_cipher_smcap(smcap, NID_des_cbc, -1)
+		|| !cms_add_cipher_smcap(smcap, NID_rc2_cbc, 40))
+		return 0;
+	return 1;
+	}