{ERR_PACK(ERR_LIB_ASN1, 0, ASN1_R_UNEXPECTED_EOC), "unexpected eoc"},
{ERR_PACK(ERR_LIB_ASN1, 0, ASN1_R_UNIVERSALSTRING_IS_WRONG_LENGTH),
"universalstring is wrong length"},
+ {ERR_PACK(ERR_LIB_ASN1, 0, ASN1_R_UNKNOWN_DIGEST), "unknown digest"},
{ERR_PACK(ERR_LIB_ASN1, 0, ASN1_R_UNKNOWN_FORMAT), "unknown format"},
{ERR_PACK(ERR_LIB_ASN1, 0, ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM),
"unknown message digest algorithm"},
#include <openssl/x509.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
+#include <openssl/err.h>
+#include "crypto/asn1.h"
#include "crypto/evp.h"
ASN1_SEQUENCE(X509_ALGOR) = {
return 1;
}
+
+/* allocate and set algorithm ID from EVP_MD, default SHA1 */
+int x509_algor_new_from_md(X509_ALGOR **palg, const EVP_MD *md)
+{
+ /* Default is SHA1 so no need to create it - still success */
+ if (md == NULL || EVP_MD_is_a(md, "SHA1"))
+ return 1;
+ *palg = X509_ALGOR_new();
+ if (*palg == NULL)
+ return 0;
+ X509_ALGOR_set_md(*palg, md);
+ return 1;
+}
+
+/* convert algorithm ID to EVP_MD, default SHA1 */
+const EVP_MD *x509_algor_get_md(X509_ALGOR *alg)
+{
+ const EVP_MD *md;
+
+ if (alg == NULL)
+ return EVP_sha1();
+ md = EVP_get_digestbyobj(alg->algorithm);
+ if (md == NULL)
+ ASN1err(0, ASN1_R_UNKNOWN_DIGEST);
+ return md;
+}
+
+X509_ALGOR *x509_algor_mgf1_decode(X509_ALGOR *alg)
+{
+ if (OBJ_obj2nid(alg->algorithm) != NID_mgf1)
+ return NULL;
+ return ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(X509_ALGOR),
+ alg->parameter);
+}
+
+/* Allocate and set MGF1 algorithm ID from EVP_MD */
+int x509_algor_md_to_mgf1(X509_ALGOR **palg, const EVP_MD *mgf1md)
+{
+ X509_ALGOR *algtmp = NULL;
+ ASN1_STRING *stmp = NULL;
+
+ *palg = NULL;
+ if (mgf1md == NULL || EVP_MD_is_a(mgf1md, "SHA1"))
+ return 1;
+ /* need to embed algorithm ID inside another */
+ if (!x509_algor_new_from_md(&algtmp, mgf1md))
+ goto err;
+ if (ASN1_item_pack(algtmp, ASN1_ITEM_rptr(X509_ALGOR), &stmp) == NULL)
+ goto err;
+ *palg = X509_ALGOR_new();
+ if (*palg == NULL)
+ goto err;
+ X509_ALGOR_set0(*palg, OBJ_nid2obj(NID_mgf1), V_ASN1_SEQUENCE, stmp);
+ stmp = NULL;
+ err:
+ ASN1_STRING_free(stmp);
+ X509_ALGOR_free(algtmp);
+ if (*palg)
+ return 1;
+ return 0;
+}
SOURCE[../../libcrypto]= \
cms_lib.c cms_asn1.c cms_att.c cms_io.c cms_smime.c cms_err.c \
cms_sd.c cms_dd.c cms_cd.c cms_env.c cms_enc.c cms_ess.c \
- cms_pwri.c cms_kari.c
+ cms_pwri.c cms_kari.c cms_rsa.c
+
+IF[{- !$disabled{dh} -}]
+ SOURCE[../../libcrypto]=cms_dh.c
+ENDIF
+IF[{- !$disabled{ed} -}]
+ SOURCE[../../libcrypto]=cms_ecdh.c
+ENDIF
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/cms.h>
+#include <openssl/err.h>
+#include <openssl/core_names.h>
+#include "cms_local.h"
+
+static int dh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
+ X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
+{
+ const ASN1_OBJECT *aoid;
+ int atype;
+ const void *aval;
+ ASN1_INTEGER *public_key = NULL;
+ int rv = 0;
+ EVP_PKEY *pkpeer = NULL, *pk = NULL;
+ const unsigned char *p;
+ int plen;
+
+ X509_ALGOR_get0(&aoid, &atype, &aval, alg);
+ if (OBJ_obj2nid(aoid) != NID_dhpublicnumber)
+ goto err;
+ /* Only absent parameters allowed in RFC XXXX */
+ if (atype != V_ASN1_UNDEF && atype == V_ASN1_NULL)
+ goto err;
+
+ pk = EVP_PKEY_CTX_get0_pkey(pctx);
+ if (pk == NULL)
+ goto err;
+ if (!EVP_PKEY_is_a(pk, "DHX"))
+ goto err;
+
+ /* Get public key */
+ plen = ASN1_STRING_length(pubkey);
+ p = ASN1_STRING_get0_data(pubkey);
+ if (p == NULL || plen == 0)
+ goto err;
+
+ pkpeer = EVP_PKEY_new();
+ if (pkpeer == NULL
+ || !EVP_PKEY_copy_parameters(pkpeer, pk)
+ /*
+ * TODO(3.0): This is badly named!! Can we make this more
+ * generic and not TLS specific?
+ */
+ || !EVP_PKEY_set1_tls_encodedpoint(pkpeer, p, plen))
+ goto err;
+
+ if (EVP_PKEY_derive_set_peer(pctx, pkpeer) > 0)
+ rv = 1;
+ err:
+ ASN1_INTEGER_free(public_key);
+ EVP_PKEY_free(pkpeer);
+ return rv;
+}
+
+static int dh_cms_set_shared_info(EVP_PKEY_CTX *pctx, CMS_RecipientInfo *ri)
+{
+ int rv = 0;
+ X509_ALGOR *alg, *kekalg = NULL;
+ ASN1_OCTET_STRING *ukm;
+ const unsigned char *p;
+ unsigned char *dukm = NULL;
+ size_t dukmlen = 0;
+ int keylen, plen;
+ const EVP_CIPHER *kekcipher;
+ EVP_CIPHER_CTX *kekctx;
+
+ if (!CMS_RecipientInfo_kari_get0_alg(ri, &alg, &ukm))
+ goto err;
+
+ /*
+ * For DH we only have one OID permissible. If ever any more get defined
+ * we will need something cleverer.
+ */
+ if (OBJ_obj2nid(alg->algorithm) != NID_id_smime_alg_ESDH) {
+ CMSerr(0, CMS_R_KDF_PARAMETER_ERROR);
+ goto err;
+ }
+
+ if (EVP_PKEY_CTX_set_dh_kdf_type(pctx, EVP_PKEY_DH_KDF_X9_42) <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_set_dh_kdf_md(pctx, EVP_sha1()) <= 0)
+ goto err;
+
+ if (alg->parameter->type != V_ASN1_SEQUENCE)
+ goto err;
+
+ p = alg->parameter->value.sequence->data;
+ plen = alg->parameter->value.sequence->length;
+ kekalg = d2i_X509_ALGOR(NULL, &p, plen);
+ if (kekalg == NULL)
+ goto err;
+ kekctx = CMS_RecipientInfo_kari_get0_ctx(ri);
+ if (kekctx == NULL)
+ goto err;
+ kekcipher = EVP_get_cipherbyobj(kekalg->algorithm);
+ if (kekcipher == NULL || EVP_CIPHER_mode(kekcipher) != EVP_CIPH_WRAP_MODE)
+ goto err;
+ if (!EVP_EncryptInit_ex(kekctx, kekcipher, NULL, NULL, NULL))
+ goto err;
+ if (EVP_CIPHER_asn1_to_param(kekctx, kekalg->parameter) <= 0)
+ goto err;
+
+ keylen = EVP_CIPHER_CTX_key_length(kekctx);
+ if (EVP_PKEY_CTX_set_dh_kdf_outlen(pctx, keylen) <= 0)
+ goto err;
+ /* Use OBJ_nid2obj to ensure we use built in OID that isn't freed */
+ if (EVP_PKEY_CTX_set0_dh_kdf_oid(pctx,
+ OBJ_nid2obj(EVP_CIPHER_type(kekcipher)))
+ <= 0)
+ goto err;
+
+ if (ukm != NULL) {
+ dukmlen = ASN1_STRING_length(ukm);
+ dukm = OPENSSL_memdup(ASN1_STRING_get0_data(ukm), dukmlen);
+ if (dukm == NULL)
+ goto err;
+ }
+
+ if (EVP_PKEY_CTX_set0_dh_kdf_ukm(pctx, dukm, dukmlen) <= 0)
+ goto err;
+ dukm = NULL;
+
+ rv = 1;
+ err:
+ X509_ALGOR_free(kekalg);
+ OPENSSL_free(dukm);
+ return rv;
+}
+
+static int dh_cms_decrypt(CMS_RecipientInfo *ri)
+{
+ EVP_PKEY_CTX *pctx;
+
+ pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
+
+ if (pctx == NULL)
+ return 0;
+ /* See if we need to set peer key */
+ if (!EVP_PKEY_CTX_get0_peerkey(pctx)) {
+ X509_ALGOR *alg;
+ ASN1_BIT_STRING *pubkey;
+
+ if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &alg, &pubkey,
+ NULL, NULL, NULL))
+ return 0;
+ if (alg == NULL || pubkey == NULL)
+ return 0;
+ if (!dh_cms_set_peerkey(pctx, alg, pubkey)) {
+ DHerr(DH_F_DH_CMS_DECRYPT, DH_R_PEER_KEY_ERROR);
+ return 0;
+ }
+ }
+ /* Set DH derivation parameters and initialise unwrap context */
+ if (!dh_cms_set_shared_info(pctx, ri)) {
+ DHerr(DH_F_DH_CMS_DECRYPT, DH_R_SHARED_INFO_ERROR);
+ return 0;
+ }
+ return 1;
+}
+
+static int dh_cms_encrypt(CMS_RecipientInfo *ri)
+{
+ EVP_PKEY_CTX *pctx;
+ EVP_PKEY *pkey;
+ EVP_CIPHER_CTX *ctx;
+ int keylen;
+ X509_ALGOR *talg, *wrap_alg = NULL;
+ const ASN1_OBJECT *aoid;
+ ASN1_BIT_STRING *pubkey;
+ ASN1_STRING *wrap_str;
+ ASN1_OCTET_STRING *ukm;
+ unsigned char *penc = NULL, *dukm = NULL;
+ int penclen;
+ size_t dukmlen = 0;
+ int rv = 0;
+ int kdf_type, wrap_nid;
+ const EVP_MD *kdf_md;
+
+ pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
+ if (pctx == NULL)
+ return 0;
+ /* Get ephemeral key */
+ pkey = EVP_PKEY_CTX_get0_pkey(pctx);
+ if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &talg, &pubkey,
+ NULL, NULL, NULL))
+ goto err;
+ X509_ALGOR_get0(&aoid, NULL, NULL, talg);
+ /* Is everything uninitialised? */
+ if (aoid == OBJ_nid2obj(NID_undef)) {
+ BIGNUM *bn_pub_key = NULL;
+ ASN1_INTEGER *pubk;
+
+ if (!EVP_PKEY_get_bn_param(pkey, OSSL_PKEY_PARAM_PUB_KEY, &bn_pub_key))
+ goto err;
+
+ pubk = BN_to_ASN1_INTEGER(bn_pub_key, NULL);
+ BN_free(bn_pub_key);
+ if (pubk == NULL)
+ goto err;
+ /* Set the key */
+
+ penclen = i2d_ASN1_INTEGER(pubk, &penc);
+ ASN1_INTEGER_free(pubk);
+ if (penclen <= 0)
+ goto err;
+ ASN1_STRING_set0(pubkey, penc, penclen);
+ pubkey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
+ pubkey->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+
+ penc = NULL;
+ X509_ALGOR_set0(talg, OBJ_nid2obj(NID_dhpublicnumber),
+ V_ASN1_UNDEF, NULL);
+ }
+
+ /* See if custom parameters set */
+ kdf_type = EVP_PKEY_CTX_get_dh_kdf_type(pctx);
+ if (kdf_type <= 0)
+ goto err;
+ if (!EVP_PKEY_CTX_get_dh_kdf_md(pctx, &kdf_md))
+ goto err;
+
+ if (kdf_type == EVP_PKEY_DH_KDF_NONE) {
+ kdf_type = EVP_PKEY_DH_KDF_X9_42;
+ if (EVP_PKEY_CTX_set_dh_kdf_type(pctx, kdf_type) <= 0)
+ goto err;
+ } else if (kdf_type != EVP_PKEY_DH_KDF_X9_42)
+ /* Unknown KDF */
+ goto err;
+ if (kdf_md == NULL) {
+ /* Only SHA1 supported */
+ kdf_md = EVP_sha1();
+ if (EVP_PKEY_CTX_set_dh_kdf_md(pctx, kdf_md) <= 0)
+ goto err;
+ } else if (EVP_MD_type(kdf_md) != NID_sha1)
+ /* Unsupported digest */
+ goto err;
+
+ if (!CMS_RecipientInfo_kari_get0_alg(ri, &talg, &ukm))
+ goto err;
+
+ /* Get wrap NID */
+ ctx = CMS_RecipientInfo_kari_get0_ctx(ri);
+ wrap_nid = EVP_CIPHER_CTX_type(ctx);
+ if (EVP_PKEY_CTX_set0_dh_kdf_oid(pctx, OBJ_nid2obj(wrap_nid)) <= 0)
+ goto err;
+ keylen = EVP_CIPHER_CTX_key_length(ctx);
+
+ /* Package wrap algorithm in an AlgorithmIdentifier */
+
+ wrap_alg = X509_ALGOR_new();
+ if (wrap_alg == NULL)
+ goto err;
+ wrap_alg->algorithm = OBJ_nid2obj(wrap_nid);
+ wrap_alg->parameter = ASN1_TYPE_new();
+ if (wrap_alg->parameter == NULL)
+ goto err;
+ if (EVP_CIPHER_param_to_asn1(ctx, wrap_alg->parameter) <= 0)
+ goto err;
+ if (ASN1_TYPE_get(wrap_alg->parameter) == NID_undef) {
+ ASN1_TYPE_free(wrap_alg->parameter);
+ wrap_alg->parameter = NULL;
+ }
+
+ if (EVP_PKEY_CTX_set_dh_kdf_outlen(pctx, keylen) <= 0)
+ goto err;
+
+ if (ukm != NULL) {
+ dukmlen = ASN1_STRING_length(ukm);
+ dukm = OPENSSL_memdup(ASN1_STRING_get0_data(ukm), dukmlen);
+ if (dukm == NULL)
+ goto err;
+ }
+
+ if (EVP_PKEY_CTX_set0_dh_kdf_ukm(pctx, dukm, dukmlen) <= 0)
+ goto err;
+ dukm = NULL;
+
+ /*
+ * Now need to wrap encoding of wrap AlgorithmIdentifier into parameter
+ * of another AlgorithmIdentifier.
+ */
+ penc = NULL;
+ penclen = i2d_X509_ALGOR(wrap_alg, &penc);
+ if (penc == NULL || penclen == 0)
+ goto err;
+ wrap_str = ASN1_STRING_new();
+ if (wrap_str == NULL)
+ goto err;
+ ASN1_STRING_set0(wrap_str, penc, penclen);
+ penc = NULL;
+ X509_ALGOR_set0(talg, OBJ_nid2obj(NID_id_smime_alg_ESDH),
+ V_ASN1_SEQUENCE, wrap_str);
+
+ rv = 1;
+
+ err:
+ OPENSSL_free(penc);
+ X509_ALGOR_free(wrap_alg);
+ OPENSSL_free(dukm);
+ return rv;
+}
+
+int cms_dh_envelope(CMS_RecipientInfo *ri, int decrypt)
+{
+ if (decrypt == 1)
+ return dh_cms_decrypt(ri);
+ else if (decrypt == 0)
+ return dh_cms_encrypt(ri);
+
+ CMSerr(0, CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
+ return 0;
+}
\ No newline at end of file
--- /dev/null
+/*
+ * Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/cms.h>
+#include <openssl/err.h>
+#include <openssl/decoder.h>
+#include "cms_local.h"
+#include "crypto/evp.h"
+
+
+static EVP_PKEY *pkey_type2param(int ptype, const void *pval,
+ OPENSSL_CTX *libctx, const char *propq)
+{
+ EVP_PKEY *pkey = NULL;
+ EVP_PKEY_CTX *pctx = NULL;
+
+ if (ptype == V_ASN1_SEQUENCE) {
+ const ASN1_STRING *pstr = pval;
+ const unsigned char *pm = pstr->data;
+ int pmlen = pstr->length;
+ OSSL_DECODER_CTX *ctx = NULL;
+ BIO *membio = NULL;
+
+ /* TODO(3.0): Need to be able to specify here that only params will do */
+ ctx = OSSL_DECODER_CTX_new_by_EVP_PKEY(&pkey, "DER", "EC", libctx,
+ propq);
+ membio = BIO_new_mem_buf(pm, pmlen);
+ OSSL_DECODER_from_bio(ctx, membio);
+ BIO_free(membio);
+ OSSL_DECODER_CTX_free(ctx);
+ } else if (ptype == V_ASN1_OBJECT) {
+ const ASN1_OBJECT *poid = pval;
+ const char *groupname;
+
+ /*
+ * type == V_ASN1_OBJECT => the parameters are given by an asn1 OID
+ */
+
+ pctx = EVP_PKEY_CTX_new_from_name(libctx, "EC", propq);
+
+ if (pctx == NULL)
+ goto err;
+ if (EVP_PKEY_paramgen_init(pctx) <= 0)
+ goto err;
+ groupname = OBJ_nid2sn(OBJ_obj2nid(poid));
+ if (groupname == NULL
+ || !EVP_PKEY_CTX_set_group_name(pctx, groupname)) {
+ CMSerr(0, CMS_R_DECODE_ERROR);
+ goto err;
+ }
+ if (EVP_PKEY_paramgen(pctx, &pkey) <= 0) {
+ EVP_PKEY_free(pkey);
+ pkey = NULL;
+ }
+ } else {
+ CMSerr(0, CMS_R_DECODE_ERROR);
+ goto err;
+ }
+
+ return pkey;
+
+ err:
+ EVP_PKEY_free(pkey);
+ EVP_PKEY_CTX_free(pctx);
+ return NULL;
+}
+
+static int ecdh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
+ X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
+{
+ const ASN1_OBJECT *aoid;
+ int atype;
+ const void *aval;
+ int rv = 0;
+ EVP_PKEY *pkpeer = NULL;
+ const unsigned char *p;
+ int plen;
+
+ X509_ALGOR_get0(&aoid, &atype, &aval, alg);
+ if (OBJ_obj2nid(aoid) != NID_X9_62_id_ecPublicKey)
+ goto err;
+ /* If absent parameters get group from main key */
+ if (atype == V_ASN1_UNDEF || atype == V_ASN1_NULL) {
+ EVP_PKEY *pk;
+ pk = EVP_PKEY_CTX_get0_pkey(pctx);
+ if (pk == NULL)
+ goto err;
+
+ pkpeer = EVP_PKEY_new();
+ if (pkpeer == NULL)
+ goto err;
+ if (!EVP_PKEY_copy_parameters(pkpeer, pk))
+ goto err;
+ } else {
+ /* TODO(3.0): Should the get0_libctx/propq calls actually be public API? */
+ pkpeer = pkey_type2param(atype, aval,
+ evp_pkey_ctx_get0_libctx(pctx),
+ evp_pkey_ctx_get0_propq(pctx));
+ if (pkpeer == NULL)
+ goto err;
+ }
+ /* We have parameters now set public key */
+ plen = ASN1_STRING_length(pubkey);
+ p = ASN1_STRING_get0_data(pubkey);
+ if (p == NULL || plen == 0)
+ goto err;
+
+ /* TODO(3.0): Terrible name. We need a non-tls specific name */
+ if (!EVP_PKEY_set1_tls_encodedpoint(pkpeer, p, plen))
+ goto err;
+
+ if (EVP_PKEY_derive_set_peer(pctx, pkpeer) > 0)
+ rv = 1;
+ err:
+ EVP_PKEY_free(pkpeer);
+ return rv;
+}
+
+/* Set KDF parameters based on KDF NID */
+static int ecdh_cms_set_kdf_param(EVP_PKEY_CTX *pctx, int eckdf_nid)
+{
+ int kdf_nid, kdfmd_nid, cofactor;
+ const EVP_MD *kdf_md;
+ if (eckdf_nid == NID_undef)
+ return 0;
+
+ /* Lookup KDF type, cofactor mode and digest */
+ if (!OBJ_find_sigid_algs(eckdf_nid, &kdfmd_nid, &kdf_nid))
+ return 0;
+
+ if (kdf_nid == NID_dh_std_kdf)
+ cofactor = 0;
+ else if (kdf_nid == NID_dh_cofactor_kdf)
+ cofactor = 1;
+ else
+ return 0;
+
+ if (EVP_PKEY_CTX_set_ecdh_cofactor_mode(pctx, cofactor) <= 0)
+ return 0;
+
+ if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, EVP_PKEY_ECDH_KDF_X9_63) <= 0)
+ return 0;
+
+ kdf_md = EVP_get_digestbynid(kdfmd_nid);
+ if (!kdf_md)
+ return 0;
+
+ if (EVP_PKEY_CTX_set_ecdh_kdf_md(pctx, kdf_md) <= 0)
+ return 0;
+ return 1;
+}
+
+static int ecdh_cms_set_shared_info(EVP_PKEY_CTX *pctx, CMS_RecipientInfo *ri)
+{
+ int rv = 0;
+
+ X509_ALGOR *alg, *kekalg = NULL;
+ ASN1_OCTET_STRING *ukm;
+ const unsigned char *p;
+ unsigned char *der = NULL;
+ int plen, keylen;
+ EVP_CIPHER *kekcipher = NULL;
+ EVP_CIPHER_CTX *kekctx;
+ const char *name;
+
+ if (!CMS_RecipientInfo_kari_get0_alg(ri, &alg, &ukm))
+ return 0;
+
+ if (!ecdh_cms_set_kdf_param(pctx, OBJ_obj2nid(alg->algorithm))) {
+ CMSerr(0, CMS_R_KDF_PARAMETER_ERROR);
+ return 0;
+ }
+
+ if (alg->parameter->type != V_ASN1_SEQUENCE)
+ return 0;
+
+ p = alg->parameter->value.sequence->data;
+ plen = alg->parameter->value.sequence->length;
+ kekalg = d2i_X509_ALGOR(NULL, &p, plen);
+ if (kekalg == NULL)
+ goto err;
+ kekctx = CMS_RecipientInfo_kari_get0_ctx(ri);
+ if (kekctx == NULL)
+ goto err;
+ name = OBJ_nid2sn(OBJ_obj2nid(kekalg->algorithm));
+ kekcipher = EVP_CIPHER_fetch(pctx->libctx, name, pctx->propquery);
+ if (kekcipher == NULL || EVP_CIPHER_mode(kekcipher) != EVP_CIPH_WRAP_MODE)
+ goto err;
+ if (!EVP_EncryptInit_ex(kekctx, kekcipher, NULL, NULL, NULL))
+ goto err;
+ if (EVP_CIPHER_asn1_to_param(kekctx, kekalg->parameter) <= 0)
+ goto err;
+
+ keylen = EVP_CIPHER_CTX_key_length(kekctx);
+ if (EVP_PKEY_CTX_set_ecdh_kdf_outlen(pctx, keylen) <= 0)
+ goto err;
+
+ plen = CMS_SharedInfo_encode(&der, kekalg, ukm, keylen);
+
+ if (plen <= 0)
+ goto err;
+
+ if (EVP_PKEY_CTX_set0_ecdh_kdf_ukm(pctx, der, plen) <= 0)
+ goto err;
+ der = NULL;
+
+ rv = 1;
+ err:
+ EVP_CIPHER_free(kekcipher);
+ X509_ALGOR_free(kekalg);
+ OPENSSL_free(der);
+ return rv;
+}
+
+static int ecdh_cms_decrypt(CMS_RecipientInfo *ri)
+{
+ EVP_PKEY_CTX *pctx;
+
+ pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
+ if (pctx == NULL)
+ return 0;
+ /* See if we need to set peer key */
+ if (!EVP_PKEY_CTX_get0_peerkey(pctx)) {
+ X509_ALGOR *alg;
+ ASN1_BIT_STRING *pubkey;
+
+ if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &alg, &pubkey,
+ NULL, NULL, NULL))
+ return 0;
+ if (!alg || !pubkey)
+ return 0;
+ if (!ecdh_cms_set_peerkey(pctx, alg, pubkey)) {
+ CMSerr(0, CMS_R_PEER_KEY_ERROR);
+ return 0;
+ }
+ }
+ /* Set ECDH derivation parameters and initialise unwrap context */
+ if (!ecdh_cms_set_shared_info(pctx, ri)) {
+ CMSerr(0, CMS_R_SHARED_INFO_ERROR);
+ return 0;
+ }
+ return 1;
+}
+
+static int ecdh_cms_encrypt(CMS_RecipientInfo *ri)
+{
+ EVP_PKEY_CTX *pctx;
+ EVP_PKEY *pkey;
+ EVP_CIPHER_CTX *ctx;
+ int keylen;
+ X509_ALGOR *talg, *wrap_alg = NULL;
+ const ASN1_OBJECT *aoid;
+ ASN1_BIT_STRING *pubkey;
+ ASN1_STRING *wrap_str;
+ ASN1_OCTET_STRING *ukm;
+ unsigned char *penc = NULL;
+ size_t penclen;
+ int rv = 0;
+ int ecdh_nid, kdf_type, kdf_nid, wrap_nid;
+ const EVP_MD *kdf_md;
+
+ pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
+ if (pctx == NULL)
+ return 0;
+ /* Get ephemeral key */
+ pkey = EVP_PKEY_CTX_get0_pkey(pctx);
+ if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &talg, &pubkey,
+ NULL, NULL, NULL))
+ goto err;
+ X509_ALGOR_get0(&aoid, NULL, NULL, talg);
+ /* Is everything uninitialised? */
+ if (aoid == OBJ_nid2obj(NID_undef)) {
+ /* Set the key */
+
+ /* TODO(3.0): Terrible name. Needs a non TLS specific name */
+ penclen = EVP_PKEY_get1_tls_encodedpoint(pkey, &penc);
+ ASN1_STRING_set0(pubkey, penc, penclen);
+ pubkey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
+ pubkey->flags |= ASN1_STRING_FLAG_BITS_LEFT;
+
+ penc = NULL;
+ X509_ALGOR_set0(talg, OBJ_nid2obj(NID_X9_62_id_ecPublicKey),
+ V_ASN1_UNDEF, NULL);
+ }
+
+ /* See if custom parameters set */
+ kdf_type = EVP_PKEY_CTX_get_ecdh_kdf_type(pctx);
+ if (kdf_type <= 0)
+ goto err;
+ if (!EVP_PKEY_CTX_get_ecdh_kdf_md(pctx, &kdf_md))
+ goto err;
+ ecdh_nid = EVP_PKEY_CTX_get_ecdh_cofactor_mode(pctx);
+ if (ecdh_nid < 0)
+ goto err;
+ else if (ecdh_nid == 0)
+ ecdh_nid = NID_dh_std_kdf;
+ else if (ecdh_nid == 1)
+ ecdh_nid = NID_dh_cofactor_kdf;
+
+ if (kdf_type == EVP_PKEY_ECDH_KDF_NONE) {
+ kdf_type = EVP_PKEY_ECDH_KDF_X9_63;
+ if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, kdf_type) <= 0)
+ goto err;
+ } else
+ /* Unknown KDF */
+ goto err;
+ if (kdf_md == NULL) {
+ /* Fixme later for better MD */
+ kdf_md = EVP_sha1();
+ if (EVP_PKEY_CTX_set_ecdh_kdf_md(pctx, kdf_md) <= 0)
+ goto err;
+ }
+
+ if (!CMS_RecipientInfo_kari_get0_alg(ri, &talg, &ukm))
+ goto err;
+
+ /* Lookup NID for KDF+cofactor+digest */
+
+ if (!OBJ_find_sigid_by_algs(&kdf_nid, EVP_MD_type(kdf_md), ecdh_nid))
+ goto err;
+ /* Get wrap NID */
+ ctx = CMS_RecipientInfo_kari_get0_ctx(ri);
+ wrap_nid = EVP_CIPHER_CTX_type(ctx);
+ keylen = EVP_CIPHER_CTX_key_length(ctx);
+
+ /* Package wrap algorithm in an AlgorithmIdentifier */
+
+ wrap_alg = X509_ALGOR_new();
+ if (wrap_alg == NULL)
+ goto err;
+ wrap_alg->algorithm = OBJ_nid2obj(wrap_nid);
+ wrap_alg->parameter = ASN1_TYPE_new();
+ if (wrap_alg->parameter == NULL)
+ goto err;
+ if (EVP_CIPHER_param_to_asn1(ctx, wrap_alg->parameter) <= 0)
+ goto err;
+ if (ASN1_TYPE_get(wrap_alg->parameter) == NID_undef) {
+ ASN1_TYPE_free(wrap_alg->parameter);
+ wrap_alg->parameter = NULL;
+ }
+
+ if (EVP_PKEY_CTX_set_ecdh_kdf_outlen(pctx, keylen) <= 0)
+ goto err;
+
+ penclen = CMS_SharedInfo_encode(&penc, wrap_alg, ukm, keylen);
+
+ if (!penclen)
+ goto err;
+
+ if (EVP_PKEY_CTX_set0_ecdh_kdf_ukm(pctx, penc, penclen) <= 0)
+ goto err;
+ penc = NULL;
+
+ /*
+ * Now need to wrap encoding of wrap AlgorithmIdentifier into parameter
+ * of another AlgorithmIdentifier.
+ */
+ penclen = i2d_X509_ALGOR(wrap_alg, &penc);
+ if (!penc || !penclen)
+ goto err;
+ wrap_str = ASN1_STRING_new();
+ if (wrap_str == NULL)
+ goto err;
+ ASN1_STRING_set0(wrap_str, penc, penclen);
+ penc = NULL;
+ X509_ALGOR_set0(talg, OBJ_nid2obj(kdf_nid), V_ASN1_SEQUENCE, wrap_str);
+
+ rv = 1;
+
+ err:
+ OPENSSL_free(penc);
+ X509_ALGOR_free(wrap_alg);
+ return rv;
+}
+
+int cms_ecdh_envelope(CMS_RecipientInfo *ri, int decrypt)
+{
+ if (decrypt == 1)
+ return ecdh_cms_decrypt(ri);
+ else if (decrypt == 0)
+ return ecdh_cms_encrypt(ri);
+
+ CMSerr(0, CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
+ return 0;
+}
\ No newline at end of file
return 0;
} else
return 0;
+
+ if (EVP_PKEY_is_a(pkey, "DHX"))
+ return cms_dh_envelope(ri, cmd);
+ else if (EVP_PKEY_is_a(pkey, "EC"))
+ return cms_ecdh_envelope(ri, cmd);
+ else if (EVP_PKEY_is_a(pkey, "RSA"))
+ return cms_rsa_envelope(ri, cmd);
+
+ /* Something else? We'll give engines etc a chance to handle this */
if (pkey->ameth == NULL || pkey->ameth->pkey_ctrl == NULL)
return 1;
i = pkey->ameth->pkey_ctrl(pkey, ASN1_PKEY_CTRL_CMS_ENVELOPE, cmd, ri);
"content verify error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_CTRL_ERROR), "ctrl error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_CTRL_FAILURE), "ctrl failure"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_DECODE_ERROR), "decode error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_DECRYPT_ERROR), "decrypt error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_ERROR_GETTING_PUBLIC_KEY),
"error getting public key"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_INVALID_KEY_ENCRYPTION_PARAMETER),
"invalid key encryption parameter"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_INVALID_KEY_LENGTH), "invalid key length"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_INVALID_LABEL), "invalid label"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_INVALID_OAEP_PARAMETERS),
+ "invalid oaep parameters"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_KDF_PARAMETER_ERROR),
+ "kdf parameter error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_MD_BIO_INIT_ERROR), "md bio init error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH),
"messagedigest attribute wrong length"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_NO_PUBLIC_KEY), "no public key"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_NO_RECEIPT_REQUEST), "no receipt request"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_NO_SIGNERS), "no signers"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_PEER_KEY_ERROR), "peer key error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE),
"private key does not match certificate"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_RECEIPT_DECODE_ERROR),
"receipt decode error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_RECIPIENT_ERROR), "recipient error"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_SHARED_INFO_ERROR), "shared info error"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_SIGNER_CERTIFICATE_NOT_FOUND),
"signer certificate not found"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_SIGNFINAL_ERROR), "signfinal error"},
"unsupported compression algorithm"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_UNSUPPORTED_CONTENT_TYPE),
"unsupported content type"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_UNSUPPORTED_ENCRYPTION_TYPE),
+ "unsupported encryption type"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_UNSUPPORTED_KEK_ALGORITHM),
"unsupported kek algorithm"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM),
"unsupported key encryption algorithm"},
+ {ERR_PACK(ERR_LIB_CMS, 0, CMS_R_UNSUPPORTED_LABEL_SOURCE),
+ "unsupported label source"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_UNSUPPORTED_RECIPIENTINFO_TYPE),
"unsupported recipientinfo type"},
{ERR_PACK(ERR_LIB_CMS, 0, CMS_R_UNSUPPORTED_RECIPIENT_TYPE),
/* ESS routines */
int ess_check_signing_certs(CMS_SignerInfo *si, STACK_OF(X509) *chain);
+int cms_dh_envelope(CMS_RecipientInfo *ri, int decrypt);
+int cms_ecdh_envelope(CMS_RecipientInfo *ri, int decrypt);
+int cms_rsa_envelope(CMS_RecipientInfo *ri, int decrypt);
+
DECLARE_ASN1_ITEM(CMS_CertificateChoices)
DECLARE_ASN1_ITEM(CMS_DigestedData)
DECLARE_ASN1_ITEM(CMS_EncryptedData)
--- /dev/null
+/*
+ * Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/cms.h>
+#include <openssl/err.h>
+#include "crypto/asn1.h"
+#include "cms_local.h"
+
+
+static RSA_OAEP_PARAMS *rsa_oaep_decode(const X509_ALGOR *alg)
+{
+ RSA_OAEP_PARAMS *oaep;
+
+ oaep = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(RSA_OAEP_PARAMS),
+ alg->parameter);
+
+ if (oaep == NULL)
+ return NULL;
+
+ if (oaep->maskGenFunc != NULL) {
+ oaep->maskHash = x509_algor_mgf1_decode(oaep->maskGenFunc);
+ if (oaep->maskHash == NULL) {
+ RSA_OAEP_PARAMS_free(oaep);
+ return NULL;
+ }
+ }
+ return oaep;
+}
+
+static int rsa_cms_decrypt(CMS_RecipientInfo *ri)
+{
+ EVP_PKEY_CTX *pkctx;
+ X509_ALGOR *cmsalg;
+ int nid;
+ int rv = -1;
+ unsigned char *label = NULL;
+ int labellen = 0;
+ const EVP_MD *mgf1md = NULL, *md = NULL;
+ RSA_OAEP_PARAMS *oaep;
+
+ pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
+ if (pkctx == NULL)
+ return 0;
+ if (!CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &cmsalg))
+ return -1;
+ nid = OBJ_obj2nid(cmsalg->algorithm);
+ if (nid == NID_rsaEncryption)
+ return 1;
+ if (nid != NID_rsaesOaep) {
+ CMSerr(0, CMS_R_UNSUPPORTED_ENCRYPTION_TYPE);
+ return -1;
+ }
+ /* Decode OAEP parameters */
+ oaep = rsa_oaep_decode(cmsalg);
+
+ if (oaep == NULL) {
+ CMSerr(0, CMS_R_INVALID_OAEP_PARAMETERS);
+ goto err;
+ }
+
+ mgf1md = x509_algor_get_md(oaep->maskHash);
+ if (mgf1md == NULL)
+ goto err;
+ md = x509_algor_get_md(oaep->hashFunc);
+ if (md == NULL)
+ goto err;
+
+ if (oaep->pSourceFunc != NULL) {
+ X509_ALGOR *plab = oaep->pSourceFunc;
+
+ if (OBJ_obj2nid(plab->algorithm) != NID_pSpecified) {
+ CMSerr(0, CMS_R_UNSUPPORTED_LABEL_SOURCE);
+ goto err;
+ }
+ if (plab->parameter->type != V_ASN1_OCTET_STRING) {
+ CMSerr(0, CMS_R_INVALID_LABEL);
+ goto err;
+ }
+
+ label = plab->parameter->value.octet_string->data;
+ /* Stop label being freed when OAEP parameters are freed */
+ plab->parameter->value.octet_string->data = NULL;
+ labellen = plab->parameter->value.octet_string->length;
+ }
+
+ if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_OAEP_PADDING) <= 0)
+ goto err;
+ if (EVP_PKEY_CTX_set_rsa_oaep_md(pkctx, md) <= 0)
+ goto err;
+ if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0)
+ goto err;
+ if (label != NULL
+ && EVP_PKEY_CTX_set0_rsa_oaep_label(pkctx, label, labellen) <= 0)
+ goto err;
+ /* Carry on */
+ rv = 1;
+
+ err:
+ RSA_OAEP_PARAMS_free(oaep);
+ return rv;
+}
+
+static int rsa_cms_encrypt(CMS_RecipientInfo *ri)
+{
+ const EVP_MD *md, *mgf1md;
+ RSA_OAEP_PARAMS *oaep = NULL;
+ ASN1_STRING *os = NULL;
+ X509_ALGOR *alg;
+ EVP_PKEY_CTX *pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
+ int pad_mode = RSA_PKCS1_PADDING, rv = 0, labellen;
+ unsigned char *label;
+
+ if (CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &alg) <= 0)
+ return 0;
+ if (pkctx) {
+ if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
+ return 0;
+ }
+ if (pad_mode == RSA_PKCS1_PADDING) {
+ X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
+ return 1;
+ }
+ /* Not supported */
+ if (pad_mode != RSA_PKCS1_OAEP_PADDING)
+ return 0;
+ if (EVP_PKEY_CTX_get_rsa_oaep_md(pkctx, &md) <= 0)
+ goto err;
+ if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0)
+ goto err;
+ labellen = EVP_PKEY_CTX_get0_rsa_oaep_label(pkctx, &label);
+ if (labellen < 0)
+ goto err;
+ oaep = RSA_OAEP_PARAMS_new();
+ if (oaep == NULL)
+ goto err;
+ if (!x509_algor_new_from_md(&oaep->hashFunc, md))
+ goto err;
+ if (!x509_algor_md_to_mgf1(&oaep->maskGenFunc, mgf1md))
+ goto err;
+ if (labellen > 0) {
+ ASN1_OCTET_STRING *los;
+ oaep->pSourceFunc = X509_ALGOR_new();
+ if (oaep->pSourceFunc == NULL)
+ goto err;
+ los = ASN1_OCTET_STRING_new();
+ if (los == NULL)
+ goto err;
+ if (!ASN1_OCTET_STRING_set(los, label, labellen)) {
+ ASN1_OCTET_STRING_free(los);
+ goto err;
+ }
+ X509_ALGOR_set0(oaep->pSourceFunc, OBJ_nid2obj(NID_pSpecified),
+ V_ASN1_OCTET_STRING, los);
+ }
+ /* create string with pss parameter encoding. */
+ if (!ASN1_item_pack(oaep, ASN1_ITEM_rptr(RSA_OAEP_PARAMS), &os))
+ goto err;
+ X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaesOaep), V_ASN1_SEQUENCE, os);
+ os = NULL;
+ rv = 1;
+ err:
+ RSA_OAEP_PARAMS_free(oaep);
+ ASN1_STRING_free(os);
+ return rv;
+}
+
+int cms_rsa_envelope(CMS_RecipientInfo *ri, int decrypt)
+{
+ if (decrypt == 1)
+ return rsa_cms_decrypt(ri);
+ else if (decrypt == 0)
+ return rsa_cms_encrypt(ri);
+
+ CMSerr(0, CMS_R_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
+ return 0;
+}
\ No newline at end of file
#include "internal/deprecated.h"
#include <stdio.h>
-#include "internal/cryptlib.h"
#include <openssl/x509.h>
#include <openssl/asn1.h>
-#include "dh_local.h"
#include <openssl/bn.h>
-#include "crypto/asn1.h"
-#include "crypto/dh.h"
-#include "crypto/evp.h"
-#include <openssl/cms.h>
#include <openssl/core_names.h>
#include <openssl/param_build.h>
+#include <openssl/cms.h>
#include "internal/ffc.h"
+#include "internal/cryptlib.h"
+#include "crypto/asn1.h"
+#include "crypto/dh.h"
+#include "crypto/evp.h"
+#include "dh_local.h"
/*
* i2d/d2i like DH parameter functions which use the appropriate routine for
return do_dh_print(bp, x, 4, 0);
}
-#ifndef OPENSSL_NO_CMS
-static int dh_cms_decrypt(CMS_RecipientInfo *ri);
-static int dh_cms_encrypt(CMS_RecipientInfo *ri);
-#endif
-
static int dh_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
{
switch (op) {
{
switch (op) {
#ifndef OPENSSL_NO_CMS
-
- case ASN1_PKEY_CTRL_CMS_ENVELOPE:
- if (arg1 == 1)
- return dh_cms_decrypt(arg2);
- else if (arg1 == 0)
- return dh_cms_encrypt(arg2);
- return -2;
-
case ASN1_PKEY_CTRL_CMS_RI_TYPE:
*(int *)arg2 = CMS_RECIPINFO_AGREE;
return 1;
dh_pkey_export_to,
dhx_pkey_import_from,
};
-
-#ifndef OPENSSL_NO_CMS
-
-static int dh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
- X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
-{
- const ASN1_OBJECT *aoid;
- int atype;
- const void *aval;
- ASN1_INTEGER *public_key = NULL;
- int rv = 0;
- EVP_PKEY *pkpeer = NULL, *pk = NULL;
- DH *dhpeer = NULL;
- const unsigned char *p;
- int plen;
-
- X509_ALGOR_get0(&aoid, &atype, &aval, alg);
- if (OBJ_obj2nid(aoid) != NID_dhpublicnumber)
- goto err;
- /* Only absent parameters allowed in RFC XXXX */
- if (atype != V_ASN1_UNDEF && atype == V_ASN1_NULL)
- goto err;
-
- pk = EVP_PKEY_CTX_get0_pkey(pctx);
- if (pk == NULL)
- goto err;
- if (pk->type != EVP_PKEY_DHX)
- goto err;
- /* Get parameters from parent key */
- dhpeer = DHparams_dup(pk->pkey.dh);
- /* We have parameters now set public key */
- plen = ASN1_STRING_length(pubkey);
- p = ASN1_STRING_get0_data(pubkey);
- if (p == NULL || plen == 0)
- goto err;
-
- if ((public_key = d2i_ASN1_INTEGER(NULL, &p, plen)) == NULL) {
- DHerr(DH_F_DH_CMS_SET_PEERKEY, DH_R_DECODE_ERROR);
- goto err;
- }
-
- /* We have parameters now set public key */
- if ((dhpeer->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) {
- DHerr(DH_F_DH_CMS_SET_PEERKEY, DH_R_BN_DECODE_ERROR);
- goto err;
- }
-
- pkpeer = EVP_PKEY_new();
- if (pkpeer == NULL)
- goto err;
- EVP_PKEY_assign(pkpeer, pk->ameth->pkey_id, dhpeer);
- dhpeer = NULL;
- if (EVP_PKEY_derive_set_peer(pctx, pkpeer) > 0)
- rv = 1;
- err:
- ASN1_INTEGER_free(public_key);
- EVP_PKEY_free(pkpeer);
- DH_free(dhpeer);
- return rv;
-}
-
-static int dh_cms_set_shared_info(EVP_PKEY_CTX *pctx, CMS_RecipientInfo *ri)
-{
- int rv = 0;
-
- X509_ALGOR *alg, *kekalg = NULL;
- ASN1_OCTET_STRING *ukm;
- const unsigned char *p;
- unsigned char *dukm = NULL;
- size_t dukmlen = 0;
- int keylen, plen;
- const EVP_CIPHER *kekcipher;
- EVP_CIPHER_CTX *kekctx;
-
- if (!CMS_RecipientInfo_kari_get0_alg(ri, &alg, &ukm))
- goto err;
-
- /*
- * For DH we only have one OID permissible. If ever any more get defined
- * we will need something cleverer.
- */
- if (OBJ_obj2nid(alg->algorithm) != NID_id_smime_alg_ESDH) {
- DHerr(DH_F_DH_CMS_SET_SHARED_INFO, DH_R_KDF_PARAMETER_ERROR);
- goto err;
- }
-
- if (EVP_PKEY_CTX_set_dh_kdf_type(pctx, EVP_PKEY_DH_KDF_X9_42) <= 0)
- goto err;
-
- if (EVP_PKEY_CTX_set_dh_kdf_md(pctx, EVP_sha1()) <= 0)
- goto err;
-
- if (alg->parameter->type != V_ASN1_SEQUENCE)
- goto err;
-
- p = alg->parameter->value.sequence->data;
- plen = alg->parameter->value.sequence->length;
- kekalg = d2i_X509_ALGOR(NULL, &p, plen);
- if (!kekalg)
- goto err;
- kekctx = CMS_RecipientInfo_kari_get0_ctx(ri);
- if (!kekctx)
- goto err;
- kekcipher = EVP_get_cipherbyobj(kekalg->algorithm);
- if (!kekcipher || EVP_CIPHER_mode(kekcipher) != EVP_CIPH_WRAP_MODE)
- goto err;
- if (!EVP_EncryptInit_ex(kekctx, kekcipher, NULL, NULL, NULL))
- goto err;
- if (EVP_CIPHER_asn1_to_param(kekctx, kekalg->parameter) <= 0)
- goto err;
-
- keylen = EVP_CIPHER_CTX_key_length(kekctx);
- if (EVP_PKEY_CTX_set_dh_kdf_outlen(pctx, keylen) <= 0)
- goto err;
- /* Use OBJ_nid2obj to ensure we use built in OID that isn't freed */
- if (EVP_PKEY_CTX_set0_dh_kdf_oid(pctx,
- OBJ_nid2obj(EVP_CIPHER_type(kekcipher)))
- <= 0)
- goto err;
-
- if (ukm) {
- dukmlen = ASN1_STRING_length(ukm);
- dukm = OPENSSL_memdup(ASN1_STRING_get0_data(ukm), dukmlen);
- if (!dukm)
- goto err;
- }
-
- if (EVP_PKEY_CTX_set0_dh_kdf_ukm(pctx, dukm, dukmlen) <= 0)
- goto err;
- dukm = NULL;
-
- rv = 1;
- err:
- X509_ALGOR_free(kekalg);
- OPENSSL_free(dukm);
- return rv;
-}
-
-static int dh_cms_decrypt(CMS_RecipientInfo *ri)
-{
- EVP_PKEY_CTX *pctx;
-
- pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
-
- if (pctx == NULL)
- return 0;
- /* See if we need to set peer key */
- if (!EVP_PKEY_CTX_get0_peerkey(pctx)) {
- X509_ALGOR *alg;
- ASN1_BIT_STRING *pubkey;
- if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &alg, &pubkey,
- NULL, NULL, NULL))
- return 0;
- if (!alg || !pubkey)
- return 0;
- if (!dh_cms_set_peerkey(pctx, alg, pubkey)) {
- DHerr(DH_F_DH_CMS_DECRYPT, DH_R_PEER_KEY_ERROR);
- return 0;
- }
- }
- /* Set DH derivation parameters and initialise unwrap context */
- if (!dh_cms_set_shared_info(pctx, ri)) {
- DHerr(DH_F_DH_CMS_DECRYPT, DH_R_SHARED_INFO_ERROR);
- return 0;
- }
- return 1;
-}
-
-static int dh_cms_encrypt(CMS_RecipientInfo *ri)
-{
- EVP_PKEY_CTX *pctx;
- EVP_PKEY *pkey;
- EVP_CIPHER_CTX *ctx;
- int keylen;
- X509_ALGOR *talg, *wrap_alg = NULL;
- const ASN1_OBJECT *aoid;
- ASN1_BIT_STRING *pubkey;
- ASN1_STRING *wrap_str;
- ASN1_OCTET_STRING *ukm;
- unsigned char *penc = NULL, *dukm = NULL;
- int penclen;
- size_t dukmlen = 0;
- int rv = 0;
- int kdf_type, wrap_nid;
- const EVP_MD *kdf_md;
-
- pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
- if (pctx == NULL)
- return 0;
- /* Get ephemeral key */
- pkey = EVP_PKEY_CTX_get0_pkey(pctx);
- if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &talg, &pubkey,
- NULL, NULL, NULL))
- goto err;
- X509_ALGOR_get0(&aoid, NULL, NULL, talg);
- /* Is everything uninitialised? */
- if (aoid == OBJ_nid2obj(NID_undef)) {
- ASN1_INTEGER *pubk = BN_to_ASN1_INTEGER(pkey->pkey.dh->pub_key, NULL);
-
- if (pubk == NULL)
- goto err;
- /* Set the key */
-
- penclen = i2d_ASN1_INTEGER(pubk, &penc);
- ASN1_INTEGER_free(pubk);
- if (penclen <= 0)
- goto err;
- ASN1_STRING_set0(pubkey, penc, penclen);
- pubkey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
- pubkey->flags |= ASN1_STRING_FLAG_BITS_LEFT;
-
- penc = NULL;
- X509_ALGOR_set0(talg, OBJ_nid2obj(NID_dhpublicnumber),
- V_ASN1_UNDEF, NULL);
- }
-
- /* See if custom parameters set */
- kdf_type = EVP_PKEY_CTX_get_dh_kdf_type(pctx);
- if (kdf_type <= 0)
- goto err;
- if (!EVP_PKEY_CTX_get_dh_kdf_md(pctx, &kdf_md))
- goto err;
-
- if (kdf_type == EVP_PKEY_DH_KDF_NONE) {
- kdf_type = EVP_PKEY_DH_KDF_X9_42;
- if (EVP_PKEY_CTX_set_dh_kdf_type(pctx, kdf_type) <= 0)
- goto err;
- } else if (kdf_type != EVP_PKEY_DH_KDF_X9_42)
- /* Unknown KDF */
- goto err;
- if (kdf_md == NULL) {
- /* Only SHA1 supported */
- kdf_md = EVP_sha1();
- if (EVP_PKEY_CTX_set_dh_kdf_md(pctx, kdf_md) <= 0)
- goto err;
- } else if (EVP_MD_type(kdf_md) != NID_sha1)
- /* Unsupported digest */
- goto err;
-
- if (!CMS_RecipientInfo_kari_get0_alg(ri, &talg, &ukm))
- goto err;
-
- /* Get wrap NID */
- ctx = CMS_RecipientInfo_kari_get0_ctx(ri);
- wrap_nid = EVP_CIPHER_CTX_type(ctx);
- if (EVP_PKEY_CTX_set0_dh_kdf_oid(pctx, OBJ_nid2obj(wrap_nid)) <= 0)
- goto err;
- keylen = EVP_CIPHER_CTX_key_length(ctx);
-
- /* Package wrap algorithm in an AlgorithmIdentifier */
-
- wrap_alg = X509_ALGOR_new();
- if (wrap_alg == NULL)
- goto err;
- wrap_alg->algorithm = OBJ_nid2obj(wrap_nid);
- wrap_alg->parameter = ASN1_TYPE_new();
- if (wrap_alg->parameter == NULL)
- goto err;
- if (EVP_CIPHER_param_to_asn1(ctx, wrap_alg->parameter) <= 0)
- goto err;
- if (ASN1_TYPE_get(wrap_alg->parameter) == NID_undef) {
- ASN1_TYPE_free(wrap_alg->parameter);
- wrap_alg->parameter = NULL;
- }
-
- if (EVP_PKEY_CTX_set_dh_kdf_outlen(pctx, keylen) <= 0)
- goto err;
-
- if (ukm) {
- dukmlen = ASN1_STRING_length(ukm);
- dukm = OPENSSL_memdup(ASN1_STRING_get0_data(ukm), dukmlen);
- if (!dukm)
- goto err;
- }
-
- if (EVP_PKEY_CTX_set0_dh_kdf_ukm(pctx, dukm, dukmlen) <= 0)
- goto err;
- dukm = NULL;
-
- /*
- * Now need to wrap encoding of wrap AlgorithmIdentifier into parameter
- * of another AlgorithmIdentifier.
- */
- penc = NULL;
- penclen = i2d_X509_ALGOR(wrap_alg, &penc);
- if (penc == NULL || penclen == 0)
- goto err;
- wrap_str = ASN1_STRING_new();
- if (wrap_str == NULL)
- goto err;
- ASN1_STRING_set0(wrap_str, penc, penclen);
- penc = NULL;
- X509_ALGOR_set0(talg, OBJ_nid2obj(NID_id_smime_alg_ESDH),
- V_ASN1_SEQUENCE, wrap_str);
-
- rv = 1;
-
- err:
- OPENSSL_free(penc);
- X509_ALGOR_free(wrap_alg);
- OPENSSL_free(dukm);
- return rv;
-}
-
-#endif
#include "openssl/param_build.h"
#include "ec_local.h"
-#ifndef OPENSSL_NO_CMS
-static int ecdh_cms_decrypt(CMS_RecipientInfo *ri);
-static int ecdh_cms_encrypt(CMS_RecipientInfo *ri);
-#endif
-
static int eckey_param2type(int *pptype, void **ppval, const EC_KEY *ec_key)
{
const EC_GROUP *group;
}
return 1;
- case ASN1_PKEY_CTRL_CMS_ENVELOPE:
- if (arg1 == 1)
- return ecdh_cms_decrypt(arg2);
- else if (arg1 == 0)
- return ecdh_cms_encrypt(arg2);
- return -2;
-
case ASN1_PKEY_CTRL_CMS_RI_TYPE:
*(int *)arg2 = CMS_RECIPINFO_AGREE;
return 1;
{
return do_EC_KEY_print(bp, x, 4, EC_KEY_PRINT_PARAM);
}
-
-#ifndef OPENSSL_NO_CMS
-
-static int ecdh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
- X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
-{
- const ASN1_OBJECT *aoid;
- int atype;
- const void *aval;
- int rv = 0;
- EVP_PKEY *pkpeer = NULL;
- EC_KEY *ecpeer = NULL;
- const unsigned char *p;
- int plen;
-
- X509_ALGOR_get0(&aoid, &atype, &aval, alg);
- if (OBJ_obj2nid(aoid) != NID_X9_62_id_ecPublicKey)
- goto err;
- /* If absent parameters get group from main key */
- if (atype == V_ASN1_UNDEF || atype == V_ASN1_NULL) {
- const EC_GROUP *grp;
- EVP_PKEY *pk;
- pk = EVP_PKEY_CTX_get0_pkey(pctx);
- if (pk == NULL)
- goto err;
- grp = EC_KEY_get0_group(pk->pkey.ec);
- ecpeer = EC_KEY_new();
- if (ecpeer == NULL)
- goto err;
- if (!EC_KEY_set_group(ecpeer, grp))
- goto err;
- } else {
- ecpeer = eckey_type2param(atype, aval, pctx->libctx, pctx->propquery);
- if (!ecpeer)
- goto err;
- }
- /* We have parameters now set public key */
- plen = ASN1_STRING_length(pubkey);
- p = ASN1_STRING_get0_data(pubkey);
- if (p == NULL || plen == 0)
- goto err;
- if (!o2i_ECPublicKey(&ecpeer, &p, plen))
- goto err;
- pkpeer = EVP_PKEY_new();
- if (pkpeer == NULL)
- goto err;
- EVP_PKEY_set1_EC_KEY(pkpeer, ecpeer);
- if (EVP_PKEY_derive_set_peer(pctx, pkpeer) > 0)
- rv = 1;
- err:
- EC_KEY_free(ecpeer);
- EVP_PKEY_free(pkpeer);
- return rv;
-}
-
-/* Set KDF parameters based on KDF NID */
-static int ecdh_cms_set_kdf_param(EVP_PKEY_CTX *pctx, int eckdf_nid)
-{
- int kdf_nid, kdfmd_nid, cofactor;
- const EVP_MD *kdf_md;
- if (eckdf_nid == NID_undef)
- return 0;
-
- /* Lookup KDF type, cofactor mode and digest */
- if (!OBJ_find_sigid_algs(eckdf_nid, &kdfmd_nid, &kdf_nid))
- return 0;
-
- if (kdf_nid == NID_dh_std_kdf)
- cofactor = 0;
- else if (kdf_nid == NID_dh_cofactor_kdf)
- cofactor = 1;
- else
- return 0;
-
- if (EVP_PKEY_CTX_set_ecdh_cofactor_mode(pctx, cofactor) <= 0)
- return 0;
-
- if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, EVP_PKEY_ECDH_KDF_X9_63) <= 0)
- return 0;
-
- kdf_md = EVP_get_digestbynid(kdfmd_nid);
- if (!kdf_md)
- return 0;
-
- if (EVP_PKEY_CTX_set_ecdh_kdf_md(pctx, kdf_md) <= 0)
- return 0;
- return 1;
-}
-
-static int ecdh_cms_set_shared_info(EVP_PKEY_CTX *pctx, CMS_RecipientInfo *ri)
-{
- int rv = 0;
-
- X509_ALGOR *alg, *kekalg = NULL;
- ASN1_OCTET_STRING *ukm;
- const unsigned char *p;
- unsigned char *der = NULL;
- int plen, keylen;
- EVP_CIPHER *kekcipher = NULL;
- EVP_CIPHER_CTX *kekctx;
- const char *name;
-
- if (!CMS_RecipientInfo_kari_get0_alg(ri, &alg, &ukm))
- return 0;
-
- if (!ecdh_cms_set_kdf_param(pctx, OBJ_obj2nid(alg->algorithm))) {
- ECerr(EC_F_ECDH_CMS_SET_SHARED_INFO, EC_R_KDF_PARAMETER_ERROR);
- return 0;
- }
-
- if (alg->parameter->type != V_ASN1_SEQUENCE)
- return 0;
-
- p = alg->parameter->value.sequence->data;
- plen = alg->parameter->value.sequence->length;
- kekalg = d2i_X509_ALGOR(NULL, &p, plen);
- if (kekalg == NULL)
- goto err;
- kekctx = CMS_RecipientInfo_kari_get0_ctx(ri);
- if (kekctx == NULL)
- goto err;
- name = OBJ_nid2sn(OBJ_obj2nid(kekalg->algorithm));
- kekcipher = EVP_CIPHER_fetch(pctx->libctx, name, pctx->propquery);
- if (kekcipher == NULL || EVP_CIPHER_mode(kekcipher) != EVP_CIPH_WRAP_MODE)
- goto err;
- if (!EVP_EncryptInit_ex(kekctx, kekcipher, NULL, NULL, NULL))
- goto err;
- if (EVP_CIPHER_asn1_to_param(kekctx, kekalg->parameter) <= 0)
- goto err;
-
- keylen = EVP_CIPHER_CTX_key_length(kekctx);
- if (EVP_PKEY_CTX_set_ecdh_kdf_outlen(pctx, keylen) <= 0)
- goto err;
-
- plen = CMS_SharedInfo_encode(&der, kekalg, ukm, keylen);
-
- if (plen <= 0)
- goto err;
-
- if (EVP_PKEY_CTX_set0_ecdh_kdf_ukm(pctx, der, plen) <= 0)
- goto err;
- der = NULL;
-
- rv = 1;
- err:
- EVP_CIPHER_free(kekcipher);
- X509_ALGOR_free(kekalg);
- OPENSSL_free(der);
- return rv;
-}
-
-static int ecdh_cms_decrypt(CMS_RecipientInfo *ri)
-{
- EVP_PKEY_CTX *pctx;
-
- pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
- if (pctx == NULL)
- return 0;
- /* See if we need to set peer key */
- if (!EVP_PKEY_CTX_get0_peerkey(pctx)) {
- X509_ALGOR *alg;
- ASN1_BIT_STRING *pubkey;
-
- if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &alg, &pubkey,
- NULL, NULL, NULL))
- return 0;
- if (!alg || !pubkey)
- return 0;
- if (!ecdh_cms_set_peerkey(pctx, alg, pubkey)) {
- ECerr(EC_F_ECDH_CMS_DECRYPT, EC_R_PEER_KEY_ERROR);
- return 0;
- }
- }
- /* Set ECDH derivation parameters and initialise unwrap context */
- if (!ecdh_cms_set_shared_info(pctx, ri)) {
- ECerr(EC_F_ECDH_CMS_DECRYPT, EC_R_SHARED_INFO_ERROR);
- return 0;
- }
- return 1;
-}
-
-static int ecdh_cms_encrypt(CMS_RecipientInfo *ri)
-{
- EVP_PKEY_CTX *pctx;
- EVP_PKEY *pkey;
- EVP_CIPHER_CTX *ctx;
- int keylen;
- X509_ALGOR *talg, *wrap_alg = NULL;
- const ASN1_OBJECT *aoid;
- ASN1_BIT_STRING *pubkey;
- ASN1_STRING *wrap_str;
- ASN1_OCTET_STRING *ukm;
- unsigned char *penc = NULL;
- int penclen;
- int rv = 0;
- int ecdh_nid, kdf_type, kdf_nid, wrap_nid;
- const EVP_MD *kdf_md;
-
- pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
- if (pctx == NULL)
- return 0;
- /* Get ephemeral key */
- pkey = EVP_PKEY_CTX_get0_pkey(pctx);
- if (!CMS_RecipientInfo_kari_get0_orig_id(ri, &talg, &pubkey,
- NULL, NULL, NULL))
- goto err;
- X509_ALGOR_get0(&aoid, NULL, NULL, talg);
- /* Is everything uninitialised? */
- if (aoid == OBJ_nid2obj(NID_undef)) {
-
- EC_KEY *eckey = pkey->pkey.ec;
- /* Set the key */
- unsigned char *p;
-
- penclen = i2o_ECPublicKey(eckey, NULL);
- if (penclen <= 0)
- goto err;
- penc = OPENSSL_malloc(penclen);
- if (penc == NULL)
- goto err;
- p = penc;
- penclen = i2o_ECPublicKey(eckey, &p);
- if (penclen <= 0)
- goto err;
- ASN1_STRING_set0(pubkey, penc, penclen);
- pubkey->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
- pubkey->flags |= ASN1_STRING_FLAG_BITS_LEFT;
-
- penc = NULL;
- X509_ALGOR_set0(talg, OBJ_nid2obj(NID_X9_62_id_ecPublicKey),
- V_ASN1_UNDEF, NULL);
- }
-
- /* See if custom parameters set */
- kdf_type = EVP_PKEY_CTX_get_ecdh_kdf_type(pctx);
- if (kdf_type <= 0)
- goto err;
- if (!EVP_PKEY_CTX_get_ecdh_kdf_md(pctx, &kdf_md))
- goto err;
- ecdh_nid = EVP_PKEY_CTX_get_ecdh_cofactor_mode(pctx);
- if (ecdh_nid < 0)
- goto err;
- else if (ecdh_nid == 0)
- ecdh_nid = NID_dh_std_kdf;
- else if (ecdh_nid == 1)
- ecdh_nid = NID_dh_cofactor_kdf;
-
- if (kdf_type == EVP_PKEY_ECDH_KDF_NONE) {
- kdf_type = EVP_PKEY_ECDH_KDF_X9_63;
- if (EVP_PKEY_CTX_set_ecdh_kdf_type(pctx, kdf_type) <= 0)
- goto err;
- } else
- /* Unknown KDF */
- goto err;
- if (kdf_md == NULL) {
- /* Fixme later for better MD */
- kdf_md = EVP_sha1();
- if (EVP_PKEY_CTX_set_ecdh_kdf_md(pctx, kdf_md) <= 0)
- goto err;
- }
-
- if (!CMS_RecipientInfo_kari_get0_alg(ri, &talg, &ukm))
- goto err;
-
- /* Lookup NID for KDF+cofactor+digest */
-
- if (!OBJ_find_sigid_by_algs(&kdf_nid, EVP_MD_type(kdf_md), ecdh_nid))
- goto err;
- /* Get wrap NID */
- ctx = CMS_RecipientInfo_kari_get0_ctx(ri);
- wrap_nid = EVP_CIPHER_CTX_type(ctx);
- keylen = EVP_CIPHER_CTX_key_length(ctx);
-
- /* Package wrap algorithm in an AlgorithmIdentifier */
-
- wrap_alg = X509_ALGOR_new();
- if (wrap_alg == NULL)
- goto err;
- wrap_alg->algorithm = OBJ_nid2obj(wrap_nid);
- wrap_alg->parameter = ASN1_TYPE_new();
- if (wrap_alg->parameter == NULL)
- goto err;
- if (EVP_CIPHER_param_to_asn1(ctx, wrap_alg->parameter) <= 0)
- goto err;
- if (ASN1_TYPE_get(wrap_alg->parameter) == NID_undef) {
- ASN1_TYPE_free(wrap_alg->parameter);
- wrap_alg->parameter = NULL;
- }
-
- if (EVP_PKEY_CTX_set_ecdh_kdf_outlen(pctx, keylen) <= 0)
- goto err;
-
- penclen = CMS_SharedInfo_encode(&penc, wrap_alg, ukm, keylen);
-
- if (!penclen)
- goto err;
-
- if (EVP_PKEY_CTX_set0_ecdh_kdf_ukm(pctx, penc, penclen) <= 0)
- goto err;
- penc = NULL;
-
- /*
- * Now need to wrap encoding of wrap AlgorithmIdentifier into parameter
- * of another AlgorithmIdentifier.
- */
- penclen = i2d_X509_ALGOR(wrap_alg, &penc);
- if (!penc || !penclen)
- goto err;
- wrap_str = ASN1_STRING_new();
- if (wrap_str == NULL)
- goto err;
- ASN1_STRING_set0(wrap_str, penc, penclen);
- penc = NULL;
- X509_ALGOR_set0(talg, OBJ_nid2obj(kdf_nid), V_ASN1_SEQUENCE, wrap_str);
-
- rv = 1;
-
- err:
- OPENSSL_free(penc);
- X509_ALGOR_free(wrap_alg);
- return rv;
-}
-
-#endif
ASN1_R_TYPE_NOT_PRIMITIVE:195:type not primitive
ASN1_R_UNEXPECTED_EOC:159:unexpected eoc
ASN1_R_UNIVERSALSTRING_IS_WRONG_LENGTH:215:universalstring is wrong length
+ASN1_R_UNKNOWN_DIGEST:229:unknown digest
ASN1_R_UNKNOWN_FORMAT:160:unknown format
ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM:161:unknown message digest algorithm
ASN1_R_UNKNOWN_OBJECT_TYPE:162:unknown object type
CMS_R_CONTENT_VERIFY_ERROR:109:content verify error
CMS_R_CTRL_ERROR:110:ctrl error
CMS_R_CTRL_FAILURE:111:ctrl failure
+CMS_R_DECODE_ERROR:187:decode error
CMS_R_DECRYPT_ERROR:112:decrypt error
CMS_R_ERROR_GETTING_PUBLIC_KEY:113:error getting public key
CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE:114:\
CMS_R_INVALID_ENCRYPTED_KEY_LENGTH:117:invalid encrypted key length
CMS_R_INVALID_KEY_ENCRYPTION_PARAMETER:176:invalid key encryption parameter
CMS_R_INVALID_KEY_LENGTH:118:invalid key length
+CMS_R_INVALID_LABEL:190:invalid label
+CMS_R_INVALID_OAEP_PARAMETERS:191:invalid oaep parameters
+CMS_R_KDF_PARAMETER_ERROR:186:kdf parameter error
CMS_R_MD_BIO_INIT_ERROR:119:md bio init error
CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH:120:\
messagedigest attribute wrong length
CMS_R_NO_PUBLIC_KEY:134:no public key
CMS_R_NO_RECEIPT_REQUEST:168:no receipt request
CMS_R_NO_SIGNERS:135:no signers
+CMS_R_PEER_KEY_ERROR:188:peer key error
CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE:136:\
private key does not match certificate
CMS_R_RECEIPT_DECODE_ERROR:169:receipt decode error
CMS_R_RECIPIENT_ERROR:137:recipient error
+CMS_R_SHARED_INFO_ERROR:189:shared info error
CMS_R_SIGNER_CERTIFICATE_NOT_FOUND:138:signer certificate not found
CMS_R_SIGNFINAL_ERROR:139:signfinal error
CMS_R_SMIME_TEXT_ERROR:140:smime text error
CMS_R_UNKNOWN_ID:150:unknown id
CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM:151:unsupported compression algorithm
CMS_R_UNSUPPORTED_CONTENT_TYPE:152:unsupported content type
+CMS_R_UNSUPPORTED_ENCRYPTION_TYPE:192:unsupported encryption type
CMS_R_UNSUPPORTED_KEK_ALGORITHM:153:unsupported kek algorithm
CMS_R_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM:179:\
unsupported key encryption algorithm
+CMS_R_UNSUPPORTED_LABEL_SOURCE:193:unsupported label source
CMS_R_UNSUPPORTED_RECIPIENTINFO_TYPE:155:unsupported recipientinfo type
CMS_R_UNSUPPORTED_RECIPIENT_TYPE:154:unsupported recipient type
CMS_R_UNSUPPORTED_TYPE:156:unsupported type
return ret;
}
+OPENSSL_CTX *evp_pkey_ctx_get0_libctx(EVP_PKEY_CTX *ctx)
+{
+ return ctx->libctx;
+}
+
+const char *evp_pkey_ctx_get0_propq(EVP_PKEY_CTX *ctx)
+{
+ return ctx->propquery;
+}
+
/* Utility functions to send a string of hex string to a ctrl */
int EVP_PKEY_CTX_str2ctrl(EVP_PKEY_CTX *ctx, int cmd, const char *str)
#ifndef OPENSSL_NO_CMS
static int rsa_cms_sign(CMS_SignerInfo *si);
static int rsa_cms_verify(CMS_SignerInfo *si);
-static int rsa_cms_decrypt(CMS_RecipientInfo *ri);
-static int rsa_cms_encrypt(CMS_RecipientInfo *ri);
#endif
static RSA_PSS_PARAMS *rsa_pss_decode(const X509_ALGOR *alg);
RSA_free(pkey->pkey.rsa);
}
-static X509_ALGOR *rsa_mgf1_decode(X509_ALGOR *alg)
-{
- if (OBJ_obj2nid(alg->algorithm) != NID_mgf1)
- return NULL;
- return ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(X509_ALGOR),
- alg->parameter);
-}
-
static int rsa_pss_param_print(BIO *bp, int pss_key, RSA_PSS_PARAMS *pss,
int indent)
{
goto err;
if (BIO_puts(bp, " with ") <= 0)
goto err;
- maskHash = rsa_mgf1_decode(pss->maskGenAlgorithm);
+ maskHash = x509_algor_mgf1_decode(pss->maskGenAlgorithm);
if (maskHash != NULL) {
if (i2a_ASN1_OBJECT(bp, maskHash->algorithm) <= 0)
goto err;
return NULL;
if (pss->maskGenAlgorithm != NULL) {
- pss->maskHash = rsa_mgf1_decode(pss->maskGenAlgorithm);
+ pss->maskHash = x509_algor_mgf1_decode(pss->maskGenAlgorithm);
if (pss->maskHash == NULL) {
RSA_PSS_PARAMS_free(pss);
return NULL;
return rsa_cms_verify(arg2);
break;
- case ASN1_PKEY_CTRL_CMS_ENVELOPE:
- if (pkey_is_pss(pkey))
- return -2;
- if (arg1 == 0)
- return rsa_cms_encrypt(arg2);
- else if (arg1 == 1)
- return rsa_cms_decrypt(arg2);
- break;
-
case ASN1_PKEY_CTRL_CMS_RI_TYPE:
if (pkey_is_pss(pkey))
return -2;
}
-/* allocate and set algorithm ID from EVP_MD, default SHA1 */
-static int rsa_md_to_algor(X509_ALGOR **palg, const EVP_MD *md)
-{
- if (md == NULL || EVP_MD_type(md) == NID_sha1)
- return 1;
- *palg = X509_ALGOR_new();
- if (*palg == NULL)
- return 0;
- X509_ALGOR_set_md(*palg, md);
- return 1;
-}
-
-/* Allocate and set MGF1 algorithm ID from EVP_MD */
-static int rsa_md_to_mgf1(X509_ALGOR **palg, const EVP_MD *mgf1md)
-{
- X509_ALGOR *algtmp = NULL;
- ASN1_STRING *stmp = NULL;
-
- *palg = NULL;
- if (mgf1md == NULL || EVP_MD_type(mgf1md) == NID_sha1)
- return 1;
- /* need to embed algorithm ID inside another */
- if (!rsa_md_to_algor(&algtmp, mgf1md))
- goto err;
- if (ASN1_item_pack(algtmp, ASN1_ITEM_rptr(X509_ALGOR), &stmp) == NULL)
- goto err;
- *palg = X509_ALGOR_new();
- if (*palg == NULL)
- goto err;
- X509_ALGOR_set0(*palg, OBJ_nid2obj(NID_mgf1), V_ASN1_SEQUENCE, stmp);
- stmp = NULL;
- err:
- ASN1_STRING_free(stmp);
- X509_ALGOR_free(algtmp);
- if (*palg)
- return 1;
- return 0;
-}
-
-/* convert algorithm ID to EVP_MD, default SHA1 */
-static const EVP_MD *rsa_algor_to_md(X509_ALGOR *alg)
-{
- const EVP_MD *md;
-
- if (!alg)
- return EVP_sha1();
- md = EVP_get_digestbyobj(alg->algorithm);
- if (md == NULL)
- RSAerr(RSA_F_RSA_ALGOR_TO_MD, RSA_R_UNKNOWN_DIGEST);
- return md;
-}
-
/*
* Convert EVP_PKEY_CTX in PSS mode into corresponding algorithm parameter,
* suitable for setting an AlgorithmIdentifier.
if (!ASN1_INTEGER_set(pss->saltLength, saltlen))
goto err;
}
- if (!rsa_md_to_algor(&pss->hashAlgorithm, sigmd))
+ if (!x509_algor_new_from_md(&pss->hashAlgorithm, sigmd))
goto err;
if (mgf1md == NULL)
mgf1md = sigmd;
- if (!rsa_md_to_mgf1(&pss->maskGenAlgorithm, mgf1md))
+ if (!x509_algor_md_to_mgf1(&pss->maskGenAlgorithm, mgf1md))
goto err;
- if (!rsa_md_to_algor(&pss->maskHash, mgf1md))
+ if (!x509_algor_new_from_md(&pss->maskHash, mgf1md))
goto err;
return pss;
err:
if (pss == NULL)
return 0;
- *pmd = rsa_algor_to_md(pss->hashAlgorithm);
+ *pmd = x509_algor_get_md(pss->hashAlgorithm);
if (*pmd == NULL)
return 0;
- *pmgf1md = rsa_algor_to_md(pss->maskHash);
+ *pmgf1md = x509_algor_get_md(pss->maskHash);
if (*pmgf1md == NULL)
return 0;
if (pss->saltLength)
return rv;
}
-#ifndef OPENSSL_NO_CMS
-static RSA_OAEP_PARAMS *rsa_oaep_decode(const X509_ALGOR *alg)
-{
- RSA_OAEP_PARAMS *oaep;
-
- oaep = ASN1_TYPE_unpack_sequence(ASN1_ITEM_rptr(RSA_OAEP_PARAMS),
- alg->parameter);
-
- if (oaep == NULL)
- return NULL;
-
- if (oaep->maskGenFunc != NULL) {
- oaep->maskHash = rsa_mgf1_decode(oaep->maskGenFunc);
- if (oaep->maskHash == NULL) {
- RSA_OAEP_PARAMS_free(oaep);
- return NULL;
- }
- }
- return oaep;
-}
-
-static int rsa_cms_decrypt(CMS_RecipientInfo *ri)
-{
- EVP_PKEY_CTX *pkctx;
- X509_ALGOR *cmsalg;
- int nid;
- int rv = -1;
- unsigned char *label = NULL;
- int labellen = 0;
- const EVP_MD *mgf1md = NULL, *md = NULL;
- RSA_OAEP_PARAMS *oaep;
-
- pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
- if (pkctx == NULL)
- return 0;
- if (!CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &cmsalg))
- return -1;
- nid = OBJ_obj2nid(cmsalg->algorithm);
- if (nid == NID_rsaEncryption)
- return 1;
- if (nid != NID_rsaesOaep) {
- RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_ENCRYPTION_TYPE);
- return -1;
- }
- /* Decode OAEP parameters */
- oaep = rsa_oaep_decode(cmsalg);
-
- if (oaep == NULL) {
- RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_OAEP_PARAMETERS);
- goto err;
- }
-
- mgf1md = rsa_algor_to_md(oaep->maskHash);
- if (mgf1md == NULL)
- goto err;
- md = rsa_algor_to_md(oaep->hashFunc);
- if (md == NULL)
- goto err;
-
- if (oaep->pSourceFunc != NULL) {
- X509_ALGOR *plab = oaep->pSourceFunc;
-
- if (OBJ_obj2nid(plab->algorithm) != NID_pSpecified) {
- RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_UNSUPPORTED_LABEL_SOURCE);
- goto err;
- }
- if (plab->parameter->type != V_ASN1_OCTET_STRING) {
- RSAerr(RSA_F_RSA_CMS_DECRYPT, RSA_R_INVALID_LABEL);
- goto err;
- }
-
- label = plab->parameter->value.octet_string->data;
- /* Stop label being freed when OAEP parameters are freed */
- plab->parameter->value.octet_string->data = NULL;
- labellen = plab->parameter->value.octet_string->length;
- }
-
- if (EVP_PKEY_CTX_set_rsa_padding(pkctx, RSA_PKCS1_OAEP_PADDING) <= 0)
- goto err;
- if (EVP_PKEY_CTX_set_rsa_oaep_md(pkctx, md) <= 0)
- goto err;
- if (EVP_PKEY_CTX_set_rsa_mgf1_md(pkctx, mgf1md) <= 0)
- goto err;
- if (label != NULL
- && EVP_PKEY_CTX_set0_rsa_oaep_label(pkctx, label, labellen) <= 0)
- goto err;
- /* Carry on */
- rv = 1;
-
- err:
- RSA_OAEP_PARAMS_free(oaep);
- return rv;
-}
-
-static int rsa_cms_encrypt(CMS_RecipientInfo *ri)
-{
- const EVP_MD *md, *mgf1md;
- RSA_OAEP_PARAMS *oaep = NULL;
- ASN1_STRING *os = NULL;
- X509_ALGOR *alg;
- EVP_PKEY_CTX *pkctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
- int pad_mode = RSA_PKCS1_PADDING, rv = 0, labellen;
- unsigned char *label;
-
- if (CMS_RecipientInfo_ktri_get0_algs(ri, NULL, NULL, &alg) <= 0)
- return 0;
- if (pkctx) {
- if (EVP_PKEY_CTX_get_rsa_padding(pkctx, &pad_mode) <= 0)
- return 0;
- }
- if (pad_mode == RSA_PKCS1_PADDING) {
- X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaEncryption), V_ASN1_NULL, 0);
- return 1;
- }
- /* Not supported */
- if (pad_mode != RSA_PKCS1_OAEP_PADDING)
- return 0;
- if (EVP_PKEY_CTX_get_rsa_oaep_md(pkctx, &md) <= 0)
- goto err;
- if (EVP_PKEY_CTX_get_rsa_mgf1_md(pkctx, &mgf1md) <= 0)
- goto err;
- labellen = EVP_PKEY_CTX_get0_rsa_oaep_label(pkctx, &label);
- if (labellen < 0)
- goto err;
- oaep = RSA_OAEP_PARAMS_new();
- if (oaep == NULL)
- goto err;
- if (!rsa_md_to_algor(&oaep->hashFunc, md))
- goto err;
- if (!rsa_md_to_mgf1(&oaep->maskGenFunc, mgf1md))
- goto err;
- if (labellen > 0) {
- ASN1_OCTET_STRING *los;
- oaep->pSourceFunc = X509_ALGOR_new();
- if (oaep->pSourceFunc == NULL)
- goto err;
- los = ASN1_OCTET_STRING_new();
- if (los == NULL)
- goto err;
- if (!ASN1_OCTET_STRING_set(los, label, labellen)) {
- ASN1_OCTET_STRING_free(los);
- goto err;
- }
- X509_ALGOR_set0(oaep->pSourceFunc, OBJ_nid2obj(NID_pSpecified),
- V_ASN1_OCTET_STRING, los);
- }
- /* create string with pss parameter encoding. */
- if (!ASN1_item_pack(oaep, ASN1_ITEM_rptr(RSA_OAEP_PARAMS), &os))
- goto err;
- X509_ALGOR_set0(alg, OBJ_nid2obj(NID_rsaesOaep), V_ASN1_SEQUENCE, os);
- os = NULL;
- rv = 1;
- err:
- RSA_OAEP_PARAMS_free(oaep);
- ASN1_STRING_free(os);
- return rv;
-}
-#endif
-
static int rsa_pkey_check(const EVP_PKEY *pkey)
{
return RSA_check_key_ex(pkey->pkey.rsa, NULL);
unsigned char *data, int len);
int asn1_type_get_octetstring_int(const ASN1_TYPE *a, long *num,
unsigned char *data, int max_len);
+
+int x509_algor_new_from_md(X509_ALGOR **palg, const EVP_MD *md);
+const EVP_MD *x509_algor_get_md(X509_ALGOR *alg);
+X509_ALGOR *x509_algor_mgf1_decode(X509_ALGOR *alg);
+int x509_algor_md_to_mgf1(X509_ALGOR **palg, const EVP_MD *mgf1md);
\ No newline at end of file
int evp_pkey_ctx_use_cached_data(EVP_PKEY_CTX *ctx);
#endif /* !defined(FIPS_MODULE) */
+OPENSSL_CTX *evp_pkey_ctx_get0_libctx(EVP_PKEY_CTX *ctx);
+const char *evp_pkey_ctx_get0_propq(EVP_PKEY_CTX *ctx);
void evp_method_store_flush(OPENSSL_CTX *libctx);
int evp_set_default_properties_int(OPENSSL_CTX *libctx, const char *propq,
int loadconfig);
# define ASN1_R_TYPE_NOT_PRIMITIVE 195
# define ASN1_R_UNEXPECTED_EOC 159
# define ASN1_R_UNIVERSALSTRING_IS_WRONG_LENGTH 215
+# define ASN1_R_UNKNOWN_DIGEST 229
# define ASN1_R_UNKNOWN_FORMAT 160
# define ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM 161
# define ASN1_R_UNKNOWN_OBJECT_TYPE 162
# define CMS_R_CONTENT_VERIFY_ERROR 109
# define CMS_R_CTRL_ERROR 110
# define CMS_R_CTRL_FAILURE 111
+# define CMS_R_DECODE_ERROR 187
# define CMS_R_DECRYPT_ERROR 112
# define CMS_R_ERROR_GETTING_PUBLIC_KEY 113
# define CMS_R_ERROR_READING_MESSAGEDIGEST_ATTRIBUTE 114
# define CMS_R_INVALID_ENCRYPTED_KEY_LENGTH 117
# define CMS_R_INVALID_KEY_ENCRYPTION_PARAMETER 176
# define CMS_R_INVALID_KEY_LENGTH 118
+# define CMS_R_INVALID_LABEL 190
+# define CMS_R_INVALID_OAEP_PARAMETERS 191
+# define CMS_R_KDF_PARAMETER_ERROR 186
# define CMS_R_MD_BIO_INIT_ERROR 119
# define CMS_R_MESSAGEDIGEST_ATTRIBUTE_WRONG_LENGTH 120
# define CMS_R_MESSAGEDIGEST_WRONG_LENGTH 121
# define CMS_R_NO_PUBLIC_KEY 134
# define CMS_R_NO_RECEIPT_REQUEST 168
# define CMS_R_NO_SIGNERS 135
+# define CMS_R_PEER_KEY_ERROR 188
# define CMS_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE 136
# define CMS_R_RECEIPT_DECODE_ERROR 169
# define CMS_R_RECIPIENT_ERROR 137
+# define CMS_R_SHARED_INFO_ERROR 189
# define CMS_R_SIGNER_CERTIFICATE_NOT_FOUND 138
# define CMS_R_SIGNFINAL_ERROR 139
# define CMS_R_SMIME_TEXT_ERROR 140
# define CMS_R_UNKNOWN_ID 150
# define CMS_R_UNSUPPORTED_COMPRESSION_ALGORITHM 151
# define CMS_R_UNSUPPORTED_CONTENT_TYPE 152
+# define CMS_R_UNSUPPORTED_ENCRYPTION_TYPE 192
# define CMS_R_UNSUPPORTED_KEK_ALGORITHM 153
# define CMS_R_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM 179
+# define CMS_R_UNSUPPORTED_LABEL_SOURCE 193
# define CMS_R_UNSUPPORTED_RECIPIENTINFO_TYPE 155
# define CMS_R_UNSUPPORTED_RECIPIENT_TYPE 154
# define CMS_R_UNSUPPORTED_TYPE 156
projects / openssl.git / commitdiff