1 files changed, 797 insertions, 0 deletions

diff --git a/src/lib/libcrypto/cms/cms_smime.c b/src/lib/libcrypto/cms/cms_smime.c
new file mode 100644
index 0000000000..4a799eb897
--- /dev/null
+++ b/src/lib/libcrypto/cms/cms_smime.c
@@ -0,0 +1,797 @@
+/* crypto/cms/cms_smime.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/x509.h>
+#include <openssl/x509v3.h>
+#include <openssl/err.h>
+#include <openssl/cms.h>
+#include "cms_lcl.h"
+
+static int cms_copy_content(BIO *out, BIO *in, unsigned int flags)
+        {
+        unsigned char buf[4096];
+        int r = 0, i;
+        BIO *tmpout = NULL;
+
+        if (out == NULL)
+                tmpout = BIO_new(BIO_s_null());
+        else if (flags & CMS_TEXT)
+                {
+                tmpout = BIO_new(BIO_s_mem());
+                BIO_set_mem_eof_return(tmpout, 0);
+                }
+        else
+                tmpout = out;
+
+        if(!tmpout)
+                {
+                CMSerr(CMS_F_CMS_COPY_CONTENT,ERR_R_MALLOC_FAILURE);
+                goto err;
+                }
+
+        /* Read all content through chain to process digest, decrypt etc */
+        for (;;)
+        {
+                i=BIO_read(in,buf,sizeof(buf));
+                if (i <= 0)
+                        {
+                        if (BIO_method_type(in) == BIO_TYPE_CIPHER)
+                                {
+                                if (!BIO_get_cipher_status(in))
+                                        goto err;
+                                }
+                        if (i < 0)
+                                goto err;
+                        break;
+                        }
+                                
+                if (tmpout && (BIO_write(tmpout, buf, i) != i))
+                        goto err;
+        }
+
+        if(flags & CMS_TEXT)
+                {
+                if(!SMIME_text(tmpout, out))
+                        {
+                        CMSerr(CMS_F_CMS_COPY_CONTENT,CMS_R_SMIME_TEXT_ERROR);
+                        goto err;
+                        }
+                }
+
+        r = 1;
+
+        err:
+        if (tmpout && (tmpout != out))
+                BIO_free(tmpout);
+        return r;
+
+        }
+
+static int check_content(CMS_ContentInfo *cms)
+        {
+        ASN1_OCTET_STRING **pos = CMS_get0_content(cms);
+        if (!pos || !*pos)
+                {
+                CMSerr(CMS_F_CHECK_CONTENT, CMS_R_NO_CONTENT);
+                return 0;
+                }
+        return 1;
+        }
+
+static void do_free_upto(BIO *f, BIO *upto)
+        {
+        if (upto)
+                {
+                BIO *tbio;
+                do 
+                        {
+                        tbio = BIO_pop(f);
+                        BIO_free(f);
+                        f = tbio;
+                        }
+                while (f != upto);
+                }
+        else
+                BIO_free_all(f);
+        }
+
+int CMS_data(CMS_ContentInfo *cms, BIO *out, unsigned int flags)
+        {
+        BIO *cont;
+        int r;
+        if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_data)
+                {
+                CMSerr(CMS_F_CMS_DATA, CMS_R_TYPE_NOT_DATA);
+                return 0;
+                }
+        cont = CMS_dataInit(cms, NULL);
+        if (!cont)
+                return 0;
+        r = cms_copy_content(out, cont, flags);
+        BIO_free_all(cont);
+        return r;
+        }
+
+CMS_ContentInfo *CMS_data_create(BIO *in, unsigned int flags)
+        {
+        CMS_ContentInfo *cms;
+        cms = cms_Data_create();
+        if (!cms)
+                return NULL;
+
+        if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags))
+                return cms;
+
+        CMS_ContentInfo_free(cms);
+
+        return NULL;
+        }
+
+int CMS_digest_verify(CMS_ContentInfo *cms, BIO *dcont, BIO *out,
+                                                        unsigned int flags)
+        {
+        BIO *cont;
+        int r;
+        if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_digest)
+                {
+                CMSerr(CMS_F_CMS_DIGEST_VERIFY, CMS_R_TYPE_NOT_DIGESTED_DATA);
+                return 0;
+                }
+
+        if (!dcont && !check_content(cms))
+                return 0;
+
+        cont = CMS_dataInit(cms, dcont);
+        if (!cont)
+                return 0;
+        r = cms_copy_content(out, cont, flags);
+        if (r)
+                r = cms_DigestedData_do_final(cms, cont, 1);
+        do_free_upto(cont, dcont);
+        return r;
+        }
+
+CMS_ContentInfo *CMS_digest_create(BIO *in, const EVP_MD *md,
+                                        unsigned int flags)
+        {
+        CMS_ContentInfo *cms;
+        if (!md)
+                md = EVP_sha1();
+        cms = cms_DigestedData_create(md);
+        if (!cms)
+                return NULL;
+
+        if(!(flags & CMS_DETACHED))
+                CMS_set_detached(cms, 0);
+
+        if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags))
+                return cms;
+
+        CMS_ContentInfo_free(cms);
+        return NULL;
+        }
+
+int CMS_EncryptedData_decrypt(CMS_ContentInfo *cms,
+                                const unsigned char *key, size_t keylen,
+                                BIO *dcont, BIO *out, unsigned int flags)
+        {
+        BIO *cont;
+        int r;
+        if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_encrypted)
+                {
+                CMSerr(CMS_F_CMS_ENCRYPTEDDATA_DECRYPT,
+                                        CMS_R_TYPE_NOT_ENCRYPTED_DATA);
+                return 0;
+                }
+
+        if (!dcont && !check_content(cms))
+                return 0;
+
+        if (CMS_EncryptedData_set1_key(cms, NULL, key, keylen) <= 0)
+                return 0;
+        cont = CMS_dataInit(cms, dcont);
+        if (!cont)
+                return 0;
+        r = cms_copy_content(out, cont, flags);
+        do_free_upto(cont, dcont);
+        return r;
+        }
+
+CMS_ContentInfo *CMS_EncryptedData_encrypt(BIO *in, const EVP_CIPHER *cipher,
+                                        const unsigned char *key, size_t keylen,
+                                        unsigned int flags)
+        {
+        CMS_ContentInfo *cms;
+        if (!cipher)
+                {
+                CMSerr(CMS_F_CMS_ENCRYPTEDDATA_ENCRYPT, CMS_R_NO_CIPHER);
+                return NULL;
+                }
+        cms = CMS_ContentInfo_new();
+        if (!cms)
+                return NULL;
+        if (!CMS_EncryptedData_set1_key(cms, cipher, key, keylen))
+                return NULL;
+
+        if(!(flags & CMS_DETACHED))
+                CMS_set_detached(cms, 0);
+
+        if ((flags & (CMS_STREAM|CMS_PARTIAL))
+                || CMS_final(cms, in, NULL, flags))
+                return cms;
+
+        CMS_ContentInfo_free(cms);
+        return NULL;
+        }
+
+static int cms_signerinfo_verify_cert(CMS_SignerInfo *si,
+                                        X509_STORE *store,
+                                        STACK_OF(X509) *certs,
+                                        STACK_OF(X509_CRL) *crls,
+                                        unsigned int flags)
+        {
+        X509_STORE_CTX ctx;
+        X509 *signer;
+        int i, j, r = 0;
+        CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL);
+        if (!X509_STORE_CTX_init(&ctx, store, signer, certs))
+                {
+                CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT,
+                                                CMS_R_STORE_INIT_ERROR);
+                goto err;
+                }
+        X509_STORE_CTX_set_default(&ctx, "smime_sign");
+        if (crls)
+                X509_STORE_CTX_set0_crls(&ctx, crls);
+
+        i = X509_verify_cert(&ctx);
+        if (i <= 0)
+                {
+                j = X509_STORE_CTX_get_error(&ctx);
+                CMSerr(CMS_F_CMS_SIGNERINFO_VERIFY_CERT,
+                                                CMS_R_CERTIFICATE_VERIFY_ERROR);
+                ERR_add_error_data(2, "Verify error:",
+                                         X509_verify_cert_error_string(j));
+                goto err;
+                }
+        r = 1;
+        err:
+        X509_STORE_CTX_cleanup(&ctx);
+        return r;
+
+        }
+
+int CMS_verify(CMS_ContentInfo *cms, STACK_OF(X509) *certs,
+                 X509_STORE *store, BIO *dcont, BIO *out, unsigned int flags)
+        {
+        CMS_SignerInfo *si;
+        STACK_OF(CMS_SignerInfo) *sinfos;
+        STACK_OF(X509) *cms_certs = NULL;
+        STACK_OF(X509_CRL) *crls = NULL;
+        X509 *signer;
+        int i, scount = 0, ret = 0;
+        BIO *cmsbio = NULL, *tmpin = NULL;
+
+        if (!dcont && !check_content(cms))
+                return 0;
+
+        /* Attempt to find all signer certificates */
+
+        sinfos = CMS_get0_SignerInfos(cms);
+
+        if (sk_CMS_SignerInfo_num(sinfos) <= 0)
+                {
+                CMSerr(CMS_F_CMS_VERIFY, CMS_R_NO_SIGNERS);
+                goto err;
+                }
+
+        for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
+                {
+                si = sk_CMS_SignerInfo_value(sinfos, i);
+                CMS_SignerInfo_get0_algs(si, NULL, &signer, NULL, NULL);
+                if (signer)
+                        scount++;
+                }
+
+        if (scount != sk_CMS_SignerInfo_num(sinfos))
+                scount += CMS_set1_signers_certs(cms, certs, flags);
+
+        if (scount != sk_CMS_SignerInfo_num(sinfos))
+                {
+                CMSerr(CMS_F_CMS_VERIFY, CMS_R_SIGNER_CERTIFICATE_NOT_FOUND);
+                goto err;
+                }
+
+        /* Attempt to verify all signers certs */
+
+        if (!(flags & CMS_NO_SIGNER_CERT_VERIFY))
+                {
+                cms_certs = CMS_get1_certs(cms);
+                if (!(flags & CMS_NOCRL))
+                        crls = CMS_get1_crls(cms);
+                for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
+                        {
+                        si = sk_CMS_SignerInfo_value(sinfos, i);
+                        if (!cms_signerinfo_verify_cert(si, store,
+                                                        cms_certs, crls, flags))
+                                goto err;
+                        }
+                }
+
+        /* Attempt to verify all SignerInfo signed attribute signatures */
+
+        if (!(flags & CMS_NO_ATTR_VERIFY))
+                {
+                for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
+                        {
+                        si = sk_CMS_SignerInfo_value(sinfos, i);
+                        if (CMS_signed_get_attr_count(si) < 0)
+                                continue;
+                        if (CMS_SignerInfo_verify(si) <= 0)
+                                goto err;
+                        }
+                }
+
+        /* Performance optimization: if the content is a memory BIO then
+         * store its contents in a temporary read only memory BIO. This
+         * avoids potentially large numbers of slow copies of data which will
+         * occur when reading from a read write memory BIO when signatures
+         * are calculated.
+         */
+
+        if (dcont && (BIO_method_type(dcont) == BIO_TYPE_MEM))
+                {
+                char *ptr;
+                long len;
+                len = BIO_get_mem_data(dcont, &ptr);
+                tmpin = BIO_new_mem_buf(ptr, len);
+                if (tmpin == NULL)
+                        {
+                        CMSerr(CMS_F_CMS_VERIFY,ERR_R_MALLOC_FAILURE);
+                        return 0;
+                        }
+                }
+        else
+                tmpin = dcont;
+                
+
+        cmsbio=CMS_dataInit(cms, tmpin);
+        if (!cmsbio)
+                goto err;
+
+        if (!cms_copy_content(out, cmsbio, flags))
+                goto err;
+
+        if (!(flags & CMS_NO_CONTENT_VERIFY))
+                {
+                for (i = 0; i < sk_CMS_SignerInfo_num(sinfos); i++)
+                        {
+                        si = sk_CMS_SignerInfo_value(sinfos, i);
+                        if (CMS_SignerInfo_verify_content(si, cmsbio) <= 0)
+                                {
+                                CMSerr(CMS_F_CMS_VERIFY,
+                                        CMS_R_CONTENT_VERIFY_ERROR);
+                                goto err;
+                                }
+                        }
+                }
+
+        ret = 1;
+
+        err:
+        
+        if (dcont && (tmpin == dcont))
+                do_free_upto(cmsbio, dcont);
+        else
+                BIO_free_all(cmsbio);
+
+        if (cms_certs)
+                sk_X509_pop_free(cms_certs, X509_free);
+        if (crls)
+                sk_X509_CRL_pop_free(crls, X509_CRL_free);
+
+        return ret;
+        }
+
+int CMS_verify_receipt(CMS_ContentInfo *rcms, CMS_ContentInfo *ocms,
+                        STACK_OF(X509) *certs,
+                        X509_STORE *store, unsigned int flags)
+        {
+        int r;
+        flags &= ~(CMS_DETACHED|CMS_TEXT);
+        r = CMS_verify(rcms, certs, store, NULL, NULL, flags);
+        if (r <= 0)
+                return r;
+        return cms_Receipt_verify(rcms, ocms);
+        }
+
+CMS_ContentInfo *CMS_sign(X509 *signcert, EVP_PKEY *pkey, STACK_OF(X509) *certs,
+                                                BIO *data, unsigned int flags)
+        {
+        CMS_ContentInfo *cms;
+        int i;
+
+        cms = CMS_ContentInfo_new();
+        if (!cms || !CMS_SignedData_init(cms))
+                goto merr;
+
+        if (pkey && !CMS_add1_signer(cms, signcert, pkey, NULL, flags))
+                {
+                CMSerr(CMS_F_CMS_SIGN, CMS_R_ADD_SIGNER_ERROR);
+                goto err;
+                }
+
+        for (i = 0; i < sk_X509_num(certs); i++)
+                {
+                X509 *x = sk_X509_value(certs, i);
+                if (!CMS_add1_cert(cms, x))
+                        goto merr;
+                }
+
+        if(!(flags & CMS_DETACHED))
+                CMS_set_detached(cms, 0);
+
+        if ((flags & (CMS_STREAM|CMS_PARTIAL))
+                || CMS_final(cms, data, NULL, flags))
+                return cms;
+        else
+                goto err;
+
+        merr:
+        CMSerr(CMS_F_CMS_SIGN, ERR_R_MALLOC_FAILURE);
+
+        err:
+        if (cms)
+                CMS_ContentInfo_free(cms);
+        return NULL;
+        }
+
+CMS_ContentInfo *CMS_sign_receipt(CMS_SignerInfo *si,
+                                        X509 *signcert, EVP_PKEY *pkey,
+                                        STACK_OF(X509) *certs,
+                                        unsigned int flags)
+        {
+        CMS_SignerInfo *rct_si;
+        CMS_ContentInfo *cms = NULL;
+        ASN1_OCTET_STRING **pos, *os;
+        BIO *rct_cont = NULL;
+        int r = 0;
+
+        flags &= ~(CMS_STREAM|CMS_TEXT);
+        /* Not really detached but avoids content being allocated */
+        flags |= CMS_PARTIAL|CMS_BINARY|CMS_DETACHED;
+        if (!pkey || !signcert)
+                {
+                CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_NO_KEY_OR_CERT);
+                return NULL;
+                }
+
+        /* Initialize signed data */
+
+        cms = CMS_sign(NULL, NULL, certs, NULL, flags);
+        if (!cms)
+                goto err;
+
+        /* Set inner content type to signed receipt */
+        if (!CMS_set1_eContentType(cms, OBJ_nid2obj(NID_id_smime_ct_receipt)))
+                goto err;
+
+        rct_si = CMS_add1_signer(cms, signcert, pkey, NULL, flags);
+        if (!rct_si)
+                {
+                CMSerr(CMS_F_CMS_SIGN_RECEIPT, CMS_R_ADD_SIGNER_ERROR);
+                goto err;
+                }
+
+        os = cms_encode_Receipt(si);
+
+        if (!os)
+                goto err;
+
+        /* Set content to digest */
+        rct_cont = BIO_new_mem_buf(os->data, os->length);
+        if (!rct_cont)
+                goto err;
+
+        /* Add msgSigDigest attribute */
+
+        if (!cms_msgSigDigest_add1(rct_si, si))
+                goto err;
+
+        /* Finalize structure */
+        if (!CMS_final(cms, rct_cont, NULL, flags))
+                goto err;
+
+        /* Set embedded content */
+        pos = CMS_get0_content(cms);
+        *pos = os;
+
+        r = 1;
+
+        err:
+        if (rct_cont)
+                BIO_free(rct_cont);
+        if (r)
+                return cms;
+        CMS_ContentInfo_free(cms);
+        return NULL;
+
+        }
+
+CMS_ContentInfo *CMS_encrypt(STACK_OF(X509) *certs, BIO *data,
+                                const EVP_CIPHER *cipher, unsigned int flags)
+        {
+        CMS_ContentInfo *cms;
+        int i;
+        X509 *recip;
+        cms = CMS_EnvelopedData_create(cipher);
+        if (!cms)
+                goto merr;
+        for (i = 0; i < sk_X509_num(certs); i++)
+                {
+                recip = sk_X509_value(certs, i);
+                if (!CMS_add1_recipient_cert(cms, recip, flags))
+                        {
+                        CMSerr(CMS_F_CMS_ENCRYPT, CMS_R_RECIPIENT_ERROR);
+                        goto err;
+                        }
+                }
+
+        if(!(flags & CMS_DETACHED))
+                CMS_set_detached(cms, 0);
+
+        if ((flags & (CMS_STREAM|CMS_PARTIAL))
+                || CMS_final(cms, data, NULL, flags))
+                return cms;
+        else
+                goto err;
+
+        merr:
+        CMSerr(CMS_F_CMS_ENCRYPT, ERR_R_MALLOC_FAILURE);
+        err:
+        if (cms)
+                CMS_ContentInfo_free(cms);
+        return NULL;
+        }
+
+int CMS_decrypt_set1_pkey(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert)
+        {
+        STACK_OF(CMS_RecipientInfo) *ris;
+        CMS_RecipientInfo *ri;
+        int i, r;
+        ris = CMS_get0_RecipientInfos(cms);
+        for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++)
+                {
+                ri = sk_CMS_RecipientInfo_value(ris, i);
+                if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_TRANS)
+                                continue;
+                /* If we have a cert try matching RecipientInfo
+                 * otherwise try them all.
+                 */
+                if (!cert || (CMS_RecipientInfo_ktri_cert_cmp(ri, cert) == 0))
+                        {
+                        CMS_RecipientInfo_set0_pkey(ri, pk);
+                        r = CMS_RecipientInfo_decrypt(cms, ri);
+                        CMS_RecipientInfo_set0_pkey(ri, NULL);
+                        if (r > 0)
+                                return 1;
+                        if (cert)
+                                {
+                                CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY,
+                                                CMS_R_DECRYPT_ERROR);
+                                return 0;
+                                }
+                        ERR_clear_error();
+                        }
+                }
+
+        CMSerr(CMS_F_CMS_DECRYPT_SET1_PKEY, CMS_R_NO_MATCHING_RECIPIENT);
+        return 0;
+
+        }
+
+int CMS_decrypt_set1_key(CMS_ContentInfo *cms, 
+                                unsigned char *key, size_t keylen,
+                                unsigned char *id, size_t idlen)
+        {
+        STACK_OF(CMS_RecipientInfo) *ris;
+        CMS_RecipientInfo *ri;
+        int i, r;
+        ris = CMS_get0_RecipientInfos(cms);
+        for (i = 0; i < sk_CMS_RecipientInfo_num(ris); i++)
+                {
+                ri = sk_CMS_RecipientInfo_value(ris, i);
+                if (CMS_RecipientInfo_type(ri) != CMS_RECIPINFO_KEK)
+                                continue;
+
+                /* If we have an id try matching RecipientInfo
+                 * otherwise try them all.
+                 */
+                if (!id || (CMS_RecipientInfo_kekri_id_cmp(ri, id, idlen) == 0))
+                        {
+                        CMS_RecipientInfo_set0_key(ri, key, keylen);
+                        r = CMS_RecipientInfo_decrypt(cms, ri);
+                        CMS_RecipientInfo_set0_key(ri, NULL, 0);
+                        if (r > 0)
+                                return 1;
+                        if (id)
+                                {
+                                CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY,
+                                                CMS_R_DECRYPT_ERROR);
+                                return 0;
+                                }
+                        ERR_clear_error();
+                        }
+                }
+
+        CMSerr(CMS_F_CMS_DECRYPT_SET1_KEY, CMS_R_NO_MATCHING_RECIPIENT);
+        return 0;
+
+        }
+        
+int CMS_decrypt(CMS_ContentInfo *cms, EVP_PKEY *pk, X509 *cert,
+                                BIO *dcont, BIO *out,
+                                unsigned int flags)
+        {
+        int r;
+        BIO *cont;
+        if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_pkcs7_enveloped)
+                {
+                CMSerr(CMS_F_CMS_DECRYPT, CMS_R_TYPE_NOT_ENVELOPED_DATA);
+                return 0;
+                }
+        if (!dcont && !check_content(cms))
+                return 0;
+        if (pk && !CMS_decrypt_set1_pkey(cms, pk, cert))
+                return 0;
+
+        cont = CMS_dataInit(cms, dcont);
+        if (!cont)
+                return 0;
+        r = cms_copy_content(out, cont, flags);
+        do_free_upto(cont, dcont);
+        return r;
+        }
+
+int CMS_final(CMS_ContentInfo *cms, BIO *data, BIO *dcont, unsigned int flags)
+        {
+        BIO *cmsbio;
+        int ret = 0;
+        if (!(cmsbio = CMS_dataInit(cms, dcont)))
+                {
+                CMSerr(CMS_F_CMS_FINAL,ERR_R_MALLOC_FAILURE);
+                return 0;
+                }
+
+        SMIME_crlf_copy(data, cmsbio, flags);
+
+        (void)BIO_flush(cmsbio);
+
+
+        if (!CMS_dataFinal(cms, cmsbio))
+                {
+                CMSerr(CMS_F_CMS_FINAL,CMS_R_CMS_DATAFINAL_ERROR);
+                goto err;
+                }
+
+        ret = 1;
+
+        err:
+        do_free_upto(cmsbio, dcont);
+
+        return ret;
+
+        }
+
+#ifdef ZLIB
+
+int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out,
+                                                        unsigned int flags)
+        {
+        BIO *cont;
+        int r;
+        if (OBJ_obj2nid(CMS_get0_type(cms)) != NID_id_smime_ct_compressedData)
+                {
+                CMSerr(CMS_F_CMS_UNCOMPRESS,
+                                        CMS_R_TYPE_NOT_COMPRESSED_DATA);
+                return 0;
+                }
+
+        if (!dcont && !check_content(cms))
+                return 0;
+
+        cont = CMS_dataInit(cms, dcont);
+        if (!cont)
+                return 0;
+        r = cms_copy_content(out, cont, flags);
+        do_free_upto(cont, dcont);
+        return r;
+        }
+
+CMS_ContentInfo *CMS_compress(BIO *in, int comp_nid, unsigned int flags)
+        {
+        CMS_ContentInfo *cms;
+        if (comp_nid <= 0)
+                comp_nid = NID_zlib_compression;
+        cms = cms_CompressedData_create(comp_nid);
+        if (!cms)
+                return NULL;
+
+        if(!(flags & CMS_DETACHED))
+                CMS_set_detached(cms, 0);
+
+        if ((flags & CMS_STREAM) || CMS_final(cms, in, NULL, flags))
+                return cms;
+
+        CMS_ContentInfo_free(cms);
+        return NULL;
+        }
+
+#else
+
+int CMS_uncompress(CMS_ContentInfo *cms, BIO *dcont, BIO *out,
+                                                        unsigned int flags)
+        {
+        CMSerr(CMS_F_CMS_UNCOMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
+        return 0;
+        }
+
+CMS_ContentInfo *CMS_compress(BIO *in, int comp_nid, unsigned int flags)
+        {
+        CMSerr(CMS_F_CMS_COMPRESS, CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
+        return NULL;
+        }
+
+#endif