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path: root/thirdparty/openssl/crypto/cms/cms_pwri.c
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Diffstat (limited to 'thirdparty/openssl/crypto/cms/cms_pwri.c')
-rw-r--r--thirdparty/openssl/crypto/cms/cms_pwri.c435
1 files changed, 0 insertions, 435 deletions
diff --git a/thirdparty/openssl/crypto/cms/cms_pwri.c b/thirdparty/openssl/crypto/cms/cms_pwri.c
deleted file mode 100644
index 5c817caf2f..0000000000
--- a/thirdparty/openssl/crypto/cms/cms_pwri.c
+++ /dev/null
@@ -1,435 +0,0 @@
-/* crypto/cms/cms_pwri.c */
-/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project.
- */
-/* ====================================================================
- * Copyright (c) 2009 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 <openssl/rand.h>
-#include <openssl/aes.h>
-#include "cms_lcl.h"
-#include "asn1_locl.h"
-
-int CMS_RecipientInfo_set0_password(CMS_RecipientInfo *ri,
- unsigned char *pass, ossl_ssize_t passlen)
-{
- CMS_PasswordRecipientInfo *pwri;
- if (ri->type != CMS_RECIPINFO_PASS) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_SET0_PASSWORD, CMS_R_NOT_PWRI);
- return 0;
- }
-
- pwri = ri->d.pwri;
- pwri->pass = pass;
- if (pass && passlen < 0)
- passlen = strlen((char *)pass);
- pwri->passlen = passlen;
- return 1;
-}
-
-CMS_RecipientInfo *CMS_add0_recipient_password(CMS_ContentInfo *cms,
- int iter, int wrap_nid,
- int pbe_nid,
- unsigned char *pass,
- ossl_ssize_t passlen,
- const EVP_CIPHER *kekciph)
-{
- CMS_RecipientInfo *ri = NULL;
- CMS_EnvelopedData *env;
- CMS_PasswordRecipientInfo *pwri;
- EVP_CIPHER_CTX ctx;
- X509_ALGOR *encalg = NULL;
- unsigned char iv[EVP_MAX_IV_LENGTH];
- int ivlen;
-
- env = cms_get0_enveloped(cms);
- if (!env)
- return NULL;
-
- if (wrap_nid <= 0)
- wrap_nid = NID_id_alg_PWRI_KEK;
-
- if (pbe_nid <= 0)
- pbe_nid = NID_id_pbkdf2;
-
- /* Get from enveloped data */
- if (kekciph == NULL)
- kekciph = env->encryptedContentInfo->cipher;
-
- if (kekciph == NULL) {
- CMSerr(CMS_F_CMS_ADD0_RECIPIENT_PASSWORD, CMS_R_NO_CIPHER);
- return NULL;
- }
- if (wrap_nid != NID_id_alg_PWRI_KEK) {
- CMSerr(CMS_F_CMS_ADD0_RECIPIENT_PASSWORD,
- CMS_R_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM);
- return NULL;
- }
-
- /* Setup algorithm identifier for cipher */
- encalg = X509_ALGOR_new();
- if (encalg == NULL) {
- goto merr;
- }
- EVP_CIPHER_CTX_init(&ctx);
-
- if (EVP_EncryptInit_ex(&ctx, kekciph, NULL, NULL, NULL) <= 0) {
- CMSerr(CMS_F_CMS_ADD0_RECIPIENT_PASSWORD, ERR_R_EVP_LIB);
- goto err;
- }
-
- ivlen = EVP_CIPHER_CTX_iv_length(&ctx);
-
- if (ivlen > 0) {
- if (RAND_bytes(iv, ivlen) <= 0)
- goto err;
- if (EVP_EncryptInit_ex(&ctx, NULL, NULL, NULL, iv) <= 0) {
- CMSerr(CMS_F_CMS_ADD0_RECIPIENT_PASSWORD, ERR_R_EVP_LIB);
- goto err;
- }
- encalg->parameter = ASN1_TYPE_new();
- if (!encalg->parameter) {
- CMSerr(CMS_F_CMS_ADD0_RECIPIENT_PASSWORD, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (EVP_CIPHER_param_to_asn1(&ctx, encalg->parameter) <= 0) {
- CMSerr(CMS_F_CMS_ADD0_RECIPIENT_PASSWORD,
- CMS_R_CIPHER_PARAMETER_INITIALISATION_ERROR);
- goto err;
- }
- }
-
- encalg->algorithm = OBJ_nid2obj(EVP_CIPHER_CTX_type(&ctx));
-
- EVP_CIPHER_CTX_cleanup(&ctx);
-
- /* Initialize recipient info */
- ri = M_ASN1_new_of(CMS_RecipientInfo);
- if (!ri)
- goto merr;
-
- ri->d.pwri = M_ASN1_new_of(CMS_PasswordRecipientInfo);
- if (!ri->d.pwri)
- goto merr;
- ri->type = CMS_RECIPINFO_PASS;
-
- pwri = ri->d.pwri;
- /* Since this is overwritten, free up empty structure already there */
- X509_ALGOR_free(pwri->keyEncryptionAlgorithm);
- pwri->keyEncryptionAlgorithm = X509_ALGOR_new();
- if (!pwri->keyEncryptionAlgorithm)
- goto merr;
- pwri->keyEncryptionAlgorithm->algorithm = OBJ_nid2obj(wrap_nid);
- pwri->keyEncryptionAlgorithm->parameter = ASN1_TYPE_new();
- if (!pwri->keyEncryptionAlgorithm->parameter)
- goto merr;
-
- if (!ASN1_item_pack(encalg, ASN1_ITEM_rptr(X509_ALGOR),
- &pwri->keyEncryptionAlgorithm->parameter->
- value.sequence))
- goto merr;
- pwri->keyEncryptionAlgorithm->parameter->type = V_ASN1_SEQUENCE;
-
- X509_ALGOR_free(encalg);
- encalg = NULL;
-
- /* Setup PBE algorithm */
-
- pwri->keyDerivationAlgorithm = PKCS5_pbkdf2_set(iter, NULL, 0, -1, -1);
-
- if (!pwri->keyDerivationAlgorithm)
- goto err;
-
- CMS_RecipientInfo_set0_password(ri, pass, passlen);
- pwri->version = 0;
-
- if (!sk_CMS_RecipientInfo_push(env->recipientInfos, ri))
- goto merr;
-
- return ri;
-
- merr:
- CMSerr(CMS_F_CMS_ADD0_RECIPIENT_PASSWORD, ERR_R_MALLOC_FAILURE);
- err:
- EVP_CIPHER_CTX_cleanup(&ctx);
- if (ri)
- M_ASN1_free_of(ri, CMS_RecipientInfo);
- if (encalg)
- X509_ALGOR_free(encalg);
- return NULL;
-
-}
-
-/*
- * This is an implementation of the key wrapping mechanism in RFC3211, at
- * some point this should go into EVP.
- */
-
-static int kek_unwrap_key(unsigned char *out, size_t *outlen,
- const unsigned char *in, size_t inlen,
- EVP_CIPHER_CTX *ctx)
-{
- size_t blocklen = EVP_CIPHER_CTX_block_size(ctx);
- unsigned char *tmp;
- int outl, rv = 0;
- if (inlen < 2 * blocklen) {
- /* too small */
- return 0;
- }
- if (inlen % blocklen) {
- /* Invalid size */
- return 0;
- }
- tmp = OPENSSL_malloc(inlen);
- if (!tmp)
- return 0;
- /* setup IV by decrypting last two blocks */
- EVP_DecryptUpdate(ctx, tmp + inlen - 2 * blocklen, &outl,
- in + inlen - 2 * blocklen, blocklen * 2);
- /*
- * Do a decrypt of last decrypted block to set IV to correct value output
- * it to start of buffer so we don't corrupt decrypted block this works
- * because buffer is at least two block lengths long.
- */
- EVP_DecryptUpdate(ctx, tmp, &outl, tmp + inlen - blocklen, blocklen);
- /* Can now decrypt first n - 1 blocks */
- EVP_DecryptUpdate(ctx, tmp, &outl, in, inlen - blocklen);
-
- /* Reset IV to original value */
- EVP_DecryptInit_ex(ctx, NULL, NULL, NULL, NULL);
- /* Decrypt again */
- EVP_DecryptUpdate(ctx, tmp, &outl, tmp, inlen);
- /* Check check bytes */
- if (((tmp[1] ^ tmp[4]) & (tmp[2] ^ tmp[5]) & (tmp[3] ^ tmp[6])) != 0xff) {
- /* Check byte failure */
- goto err;
- }
- if (inlen < (size_t)(tmp[0] - 4)) {
- /* Invalid length value */
- goto err;
- }
- *outlen = (size_t)tmp[0];
- memcpy(out, tmp + 4, *outlen);
- rv = 1;
- err:
- OPENSSL_cleanse(tmp, inlen);
- OPENSSL_free(tmp);
- return rv;
-
-}
-
-static int kek_wrap_key(unsigned char *out, size_t *outlen,
- const unsigned char *in, size_t inlen,
- EVP_CIPHER_CTX *ctx)
-{
- size_t blocklen = EVP_CIPHER_CTX_block_size(ctx);
- size_t olen;
- int dummy;
- /*
- * First decide length of output buffer: need header and round up to
- * multiple of block length.
- */
- olen = (inlen + 4 + blocklen - 1) / blocklen;
- olen *= blocklen;
- if (olen < 2 * blocklen) {
- /* Key too small */
- return 0;
- }
- if (inlen > 0xFF) {
- /* Key too large */
- return 0;
- }
- if (out) {
- /* Set header */
- out[0] = (unsigned char)inlen;
- out[1] = in[0] ^ 0xFF;
- out[2] = in[1] ^ 0xFF;
- out[3] = in[2] ^ 0xFF;
- memcpy(out + 4, in, inlen);
- /* Add random padding to end */
- if (olen > inlen + 4
- && RAND_bytes(out + 4 + inlen, olen - 4 - inlen) <= 0)
- return 0;
- /* Encrypt twice */
- EVP_EncryptUpdate(ctx, out, &dummy, out, olen);
- EVP_EncryptUpdate(ctx, out, &dummy, out, olen);
- }
-
- *outlen = olen;
-
- return 1;
-}
-
-/* Encrypt/Decrypt content key in PWRI recipient info */
-
-int cms_RecipientInfo_pwri_crypt(CMS_ContentInfo *cms, CMS_RecipientInfo *ri,
- int en_de)
-{
- CMS_EncryptedContentInfo *ec;
- CMS_PasswordRecipientInfo *pwri;
- const unsigned char *p = NULL;
- int plen;
- int r = 0;
- X509_ALGOR *algtmp, *kekalg = NULL;
- EVP_CIPHER_CTX kekctx;
- const EVP_CIPHER *kekcipher;
- unsigned char *key = NULL;
- size_t keylen;
-
- ec = cms->d.envelopedData->encryptedContentInfo;
-
- pwri = ri->d.pwri;
- EVP_CIPHER_CTX_init(&kekctx);
-
- if (!pwri->pass) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, CMS_R_NO_PASSWORD);
- return 0;
- }
- algtmp = pwri->keyEncryptionAlgorithm;
-
- if (!algtmp || OBJ_obj2nid(algtmp->algorithm) != NID_id_alg_PWRI_KEK) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,
- CMS_R_UNSUPPORTED_KEY_ENCRYPTION_ALGORITHM);
- return 0;
- }
-
- if (algtmp->parameter->type == V_ASN1_SEQUENCE) {
- p = algtmp->parameter->value.sequence->data;
- plen = algtmp->parameter->value.sequence->length;
- kekalg = d2i_X509_ALGOR(NULL, &p, plen);
- }
- if (kekalg == NULL) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,
- CMS_R_INVALID_KEY_ENCRYPTION_PARAMETER);
- return 0;
- }
-
- kekcipher = EVP_get_cipherbyobj(kekalg->algorithm);
-
- if (!kekcipher) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, CMS_R_UNKNOWN_CIPHER);
- goto err;
- }
-
- /* Fixup cipher based on AlgorithmIdentifier to set IV etc */
- if (!EVP_CipherInit_ex(&kekctx, kekcipher, NULL, NULL, NULL, en_de))
- goto err;
- EVP_CIPHER_CTX_set_padding(&kekctx, 0);
- if (EVP_CIPHER_asn1_to_param(&kekctx, kekalg->parameter) < 0) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT,
- CMS_R_CIPHER_PARAMETER_INITIALISATION_ERROR);
- goto err;
- }
-
- algtmp = pwri->keyDerivationAlgorithm;
-
- /* Finish password based key derivation to setup key in "ctx" */
-
- if (EVP_PBE_CipherInit(algtmp->algorithm,
- (char *)pwri->pass, pwri->passlen,
- algtmp->parameter, &kekctx, en_de) < 0) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, ERR_R_EVP_LIB);
- goto err;
- }
-
- /* Finally wrap/unwrap the key */
-
- if (en_de) {
-
- if (!kek_wrap_key(NULL, &keylen, ec->key, ec->keylen, &kekctx))
- goto err;
-
- key = OPENSSL_malloc(keylen);
-
- if (!key)
- goto err;
-
- if (!kek_wrap_key(key, &keylen, ec->key, ec->keylen, &kekctx))
- goto err;
- pwri->encryptedKey->data = key;
- pwri->encryptedKey->length = keylen;
- } else {
- key = OPENSSL_malloc(pwri->encryptedKey->length);
-
- if (!key) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- if (!kek_unwrap_key(key, &keylen,
- pwri->encryptedKey->data,
- pwri->encryptedKey->length, &kekctx)) {
- CMSerr(CMS_F_CMS_RECIPIENTINFO_PWRI_CRYPT, CMS_R_UNWRAP_FAILURE);
- goto err;
- }
-
- ec->key = key;
- ec->keylen = keylen;
-
- }
-
- r = 1;
-
- err:
-
- EVP_CIPHER_CTX_cleanup(&kekctx);
-
- if (!r && key)
- OPENSSL_free(key);
- X509_ALGOR_free(kekalg);
-
- return r;
-
-}
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