Initial commit of BoringSSL for Android.
diff --git a/src/crypto/pkcs8/pkcs8.c b/src/crypto/pkcs8/pkcs8.c
new file mode 100644
index 0000000..0b1dfba
--- /dev/null
+++ b/src/crypto/pkcs8/pkcs8.c
@@ -0,0 +1,1155 @@
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 1999.
+ */
+/* ====================================================================
+ * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com). */
+
+#include <openssl/pkcs8.h>
+
+#include <assert.h>
+#include <limits.h>
+#include <string.h>
+
+#include <openssl/asn1.h>
+#include <openssl/bn.h>
+#include <openssl/buf.h>
+#include <openssl/cipher.h>
+#include <openssl/digest.h>
+#include <openssl/err.h>
+#include <openssl/hmac.h>
+#include <openssl/mem.h>
+#include <openssl/x509.h>
+
+#include "../bytestring/internal.h"
+#include "../evp/internal.h"
+
+
+#define PKCS12_KEY_ID 1
+#define PKCS12_IV_ID 2
+#define PKCS12_MAC_ID 3
+
+static int ascii_to_ucs2(const char *ascii, size_t ascii_len,
+ uint8_t **out, size_t *out_len) {
+ uint8_t *unitmp;
+ size_t ulen, i;
+
+ ulen = ascii_len * 2 + 2;
+ if (ulen < ascii_len) {
+ return 0;
+ }
+ unitmp = OPENSSL_malloc(ulen);
+ if (unitmp == NULL) {
+ return 0;
+ }
+ for (i = 0; i < ulen - 2; i += 2) {
+ unitmp[i] = 0;
+ unitmp[i + 1] = ascii[i >> 1];
+ }
+
+ /* Make result double null terminated */
+ unitmp[ulen - 2] = 0;
+ unitmp[ulen - 1] = 0;
+ *out_len = ulen;
+ *out = unitmp;
+ return 1;
+}
+
+static int pkcs12_key_gen_raw(const uint8_t *pass_raw, size_t pass_raw_len,
+ const uint8_t *salt, size_t salt_len,
+ int id, int iterations,
+ size_t out_len, uint8_t *out,
+ const EVP_MD *md_type) {
+ uint8_t *B, *D, *I, *p, *Ai;
+ int Slen, Plen, Ilen, Ijlen;
+ int i, j, v;
+ size_t u;
+ int ret = 0;
+ BIGNUM *Ij, *Bpl1; /* These hold Ij and B + 1 */
+ EVP_MD_CTX ctx;
+
+ EVP_MD_CTX_init(&ctx);
+ v = EVP_MD_block_size(md_type);
+ u = EVP_MD_size(md_type);
+ D = OPENSSL_malloc(v);
+ Ai = OPENSSL_malloc(u);
+ B = OPENSSL_malloc(v + 1);
+ Slen = v * ((salt_len + v - 1) / v);
+ if (pass_raw_len)
+ Plen = v * ((pass_raw_len + v - 1) / v);
+ else
+ Plen = 0;
+ Ilen = Slen + Plen;
+ I = OPENSSL_malloc(Ilen);
+ Ij = BN_new();
+ Bpl1 = BN_new();
+ if (!D || !Ai || !B || !I || !Ij || !Bpl1)
+ goto err;
+ for (i = 0; i < v; i++)
+ D[i] = id;
+ p = I;
+ for (i = 0; i < Slen; i++)
+ *p++ = salt[i % salt_len];
+ for (i = 0; i < Plen; i++)
+ *p++ = pass_raw[i % pass_raw_len];
+ for (;;) {
+ if (!EVP_DigestInit_ex(&ctx, md_type, NULL) ||
+ !EVP_DigestUpdate(&ctx, D, v) ||
+ !EVP_DigestUpdate(&ctx, I, Ilen) ||
+ !EVP_DigestFinal_ex(&ctx, Ai, NULL)) {
+ goto err;
+ }
+ for (j = 1; j < iterations; j++) {
+ if (!EVP_DigestInit_ex(&ctx, md_type, NULL) ||
+ !EVP_DigestUpdate(&ctx, Ai, u) ||
+ !EVP_DigestFinal_ex(&ctx, Ai, NULL)) {
+ goto err;
+ }
+ }
+ memcpy(out, Ai, out_len < u ? out_len : u);
+ if (u >= out_len) {
+ ret = 1;
+ goto end;
+ }
+ out_len -= u;
+ out += u;
+ for (j = 0; j < v; j++)
+ B[j] = Ai[j % u];
+ /* Work out B + 1 first then can use B as tmp space */
+ if (!BN_bin2bn(B, v, Bpl1))
+ goto err;
+ if (!BN_add_word(Bpl1, 1))
+ goto err;
+ for (j = 0; j < Ilen; j += v) {
+ if (!BN_bin2bn(I + j, v, Ij))
+ goto err;
+ if (!BN_add(Ij, Ij, Bpl1))
+ goto err;
+ if (!BN_bn2bin(Ij, B))
+ goto err;
+ Ijlen = BN_num_bytes(Ij);
+ /* If more than 2^(v*8) - 1 cut off MSB */
+ if (Ijlen > v) {
+ if (!BN_bn2bin(Ij, B))
+ goto err;
+ memcpy(I + j, B + 1, v);
+ /* If less than v bytes pad with zeroes */
+ } else if (Ijlen < v) {
+ memset(I + j, 0, v - Ijlen);
+ if (!BN_bn2bin(Ij, I + j + v - Ijlen))
+ goto err;
+ } else if (!BN_bn2bin(Ij, I + j)) {
+ goto err;
+ }
+ }
+ }
+
+err:
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_key_gen_raw, ERR_R_MALLOC_FAILURE);
+
+end:
+ OPENSSL_free(Ai);
+ OPENSSL_free(B);
+ OPENSSL_free(D);
+ OPENSSL_free(I);
+ BN_free(Ij);
+ BN_free(Bpl1);
+ EVP_MD_CTX_cleanup(&ctx);
+
+ return ret;
+}
+
+static int pkcs12_pbe_keyivgen(EVP_CIPHER_CTX *ctx, const uint8_t *pass_raw,
+ size_t pass_raw_len, ASN1_TYPE *param,
+ const EVP_CIPHER *cipher, const EVP_MD *md,
+ int is_encrypt) {
+ PBEPARAM *pbe;
+ int salt_len, iterations, ret;
+ uint8_t *salt;
+ const uint8_t *pbuf;
+ uint8_t key[EVP_MAX_KEY_LENGTH], iv[EVP_MAX_IV_LENGTH];
+
+ /* Extract useful info from parameter */
+ if (param == NULL || param->type != V_ASN1_SEQUENCE ||
+ param->value.sequence == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_pbe_keyivgen, PKCS8_R_DECODE_ERROR);
+ return 0;
+ }
+
+ pbuf = param->value.sequence->data;
+ pbe = d2i_PBEPARAM(NULL, &pbuf, param->value.sequence->length);
+ if (pbe == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_pbe_keyivgen, PKCS8_R_DECODE_ERROR);
+ return 0;
+ }
+
+ if (!pbe->iter) {
+ iterations = 1;
+ } else {
+ iterations = ASN1_INTEGER_get(pbe->iter);
+ }
+ salt = pbe->salt->data;
+ salt_len = pbe->salt->length;
+ if (!pkcs12_key_gen_raw(pass_raw, pass_raw_len, salt, salt_len, PKCS12_KEY_ID,
+ iterations, EVP_CIPHER_key_length(cipher), key, md)) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_pbe_keyivgen, PKCS8_R_KEY_GEN_ERROR);
+ PBEPARAM_free(pbe);
+ return 0;
+ }
+ if (!pkcs12_key_gen_raw(pass_raw, pass_raw_len, salt, salt_len, PKCS12_IV_ID,
+ iterations, EVP_CIPHER_iv_length(cipher), iv, md)) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_pbe_keyivgen, PKCS8_R_KEY_GEN_ERROR);
+ PBEPARAM_free(pbe);
+ return 0;
+ }
+ PBEPARAM_free(pbe);
+ ret = EVP_CipherInit_ex(ctx, cipher, NULL, key, iv, is_encrypt);
+ OPENSSL_cleanse(key, EVP_MAX_KEY_LENGTH);
+ OPENSSL_cleanse(iv, EVP_MAX_IV_LENGTH);
+ return ret;
+}
+
+typedef int (*keygen_func)(EVP_CIPHER_CTX *ctx, const uint8_t *pass_raw,
+ size_t pass_raw_len, ASN1_TYPE *param,
+ const EVP_CIPHER *cipher, const EVP_MD *md,
+ int is_encrypt);
+
+struct pbe_suite {
+ int pbe_nid;
+ const EVP_CIPHER* (*cipher_func)(void);
+ const EVP_MD* (*md_func)(void);
+ keygen_func keygen;
+};
+
+static const struct pbe_suite kBuiltinPBE[] = {
+ {
+ NID_pbe_WithSHA1And40BitRC2_CBC, EVP_rc2_40_cbc, EVP_sha1, pkcs12_pbe_keyivgen,
+ },
+ {
+ NID_pbe_WithSHA1And128BitRC4, EVP_rc4, EVP_sha1, pkcs12_pbe_keyivgen,
+ },
+ {
+ NID_pbe_WithSHA1And3_Key_TripleDES_CBC, EVP_des_ede3_cbc, EVP_sha1,
+ pkcs12_pbe_keyivgen,
+ },
+};
+
+static int pbe_cipher_init(ASN1_OBJECT *pbe_obj,
+ const uint8_t *pass_raw, size_t pass_raw_len,
+ ASN1_TYPE *param,
+ EVP_CIPHER_CTX *ctx, int is_encrypt) {
+ const EVP_CIPHER *cipher;
+ const EVP_MD *md;
+ unsigned i;
+
+ const struct pbe_suite *suite = NULL;
+ const int pbe_nid = OBJ_obj2nid(pbe_obj);
+
+ for (i = 0; i < sizeof(kBuiltinPBE) / sizeof(struct pbe_suite); i++) {
+ if (kBuiltinPBE[i].pbe_nid == pbe_nid) {
+ suite = &kBuiltinPBE[i];
+ break;
+ }
+ }
+
+ if (suite == NULL) {
+ char obj_str[80];
+ OPENSSL_PUT_ERROR(PKCS8, pbe_cipher_init, PKCS8_R_UNKNOWN_ALGORITHM);
+ if (!pbe_obj) {
+ strncpy(obj_str, "NULL", sizeof(obj_str));
+ } else {
+ i2t_ASN1_OBJECT(obj_str, sizeof(obj_str), pbe_obj);
+ }
+ ERR_add_error_data(2, "TYPE=", obj_str);
+ return 0;
+ }
+
+ if (suite->cipher_func == NULL) {
+ cipher = NULL;
+ } else {
+ cipher = suite->cipher_func();
+ if (!cipher) {
+ OPENSSL_PUT_ERROR(PKCS8, pbe_cipher_init, PKCS8_R_UNKNOWN_CIPHER);
+ return 0;
+ }
+ }
+
+ if (suite->md_func == NULL) {
+ md = NULL;
+ } else {
+ md = suite->md_func();
+ if (!md) {
+ OPENSSL_PUT_ERROR(PKCS8, pbe_cipher_init, PKCS8_R_UNKNOWN_DIGEST);
+ return 0;
+ }
+ }
+
+ if (!suite->keygen(ctx, pass_raw, pass_raw_len, param, cipher, md,
+ is_encrypt)) {
+ OPENSSL_PUT_ERROR(PKCS8, pbe_cipher_init, PKCS8_R_KEYGEN_FAILURE);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int pbe_crypt(const X509_ALGOR *algor,
+ const uint8_t *pass_raw, size_t pass_raw_len,
+ const uint8_t *in, size_t in_len,
+ uint8_t **out, size_t *out_len,
+ int is_encrypt) {
+ uint8_t *buf;
+ int n, ret = 0;
+ EVP_CIPHER_CTX ctx;
+ unsigned block_size;
+
+ EVP_CIPHER_CTX_init(&ctx);
+
+ if (!pbe_cipher_init(algor->algorithm, pass_raw, pass_raw_len,
+ algor->parameter, &ctx, is_encrypt)) {
+ OPENSSL_PUT_ERROR(PKCS8, pbe_crypt, PKCS8_R_UNKNOWN_CIPHER_ALGORITHM);
+ return 0;
+ }
+ block_size = EVP_CIPHER_CTX_block_size(&ctx);
+
+ if (in_len + block_size < in_len) {
+ OPENSSL_PUT_ERROR(PKCS8, pbe_crypt, PKCS8_R_TOO_LONG);
+ goto err;
+ }
+
+ buf = OPENSSL_malloc(in_len + block_size);
+ if (buf == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, pbe_crypt, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (!EVP_CipherUpdate(&ctx, buf, &n, in, in_len)) {
+ OPENSSL_free(buf);
+ OPENSSL_PUT_ERROR(PKCS8, pbe_crypt, ERR_R_EVP_LIB);
+ goto err;
+ }
+ *out_len = n;
+
+ if (!EVP_CipherFinal_ex(&ctx, buf + n, &n)) {
+ OPENSSL_free(buf);
+ OPENSSL_PUT_ERROR(PKCS8, pbe_crypt, ERR_R_EVP_LIB);
+ goto err;
+ }
+ *out_len += n;
+ *out = buf;
+ ret = 1;
+
+err:
+ EVP_CIPHER_CTX_cleanup(&ctx);
+ return ret;
+}
+
+static void *pkcs12_item_decrypt_d2i(X509_ALGOR *algor, const ASN1_ITEM *it,
+ const uint8_t *pass_raw,
+ size_t pass_raw_len,
+ ASN1_OCTET_STRING *oct) {
+ uint8_t *out;
+ const uint8_t *p;
+ void *ret;
+ size_t out_len;
+
+ if (!pbe_crypt(algor, pass_raw, pass_raw_len, oct->data, oct->length,
+ &out, &out_len, 0 /* decrypt */)) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_item_decrypt_d2i, PKCS8_R_CRYPT_ERROR);
+ return NULL;
+ }
+ p = out;
+ ret = ASN1_item_d2i(NULL, &p, out_len, it);
+ OPENSSL_cleanse(out, out_len);
+ if (!ret) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_item_decrypt_d2i, PKCS8_R_DECODE_ERROR);
+ }
+ OPENSSL_free(out);
+ return ret;
+}
+
+PKCS8_PRIV_KEY_INFO *PKCS8_decrypt(X509_SIG *pkcs8, const char *pass,
+ int pass_len) {
+ uint8_t *pass_raw = NULL;
+ size_t pass_raw_len = 0;
+ PKCS8_PRIV_KEY_INFO *ret;
+
+ if (pass) {
+ if (pass_len == -1) {
+ pass_len = strlen(pass);
+ }
+ if (!ascii_to_ucs2(pass, pass_len, &pass_raw, &pass_raw_len)) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_key_gen_asc, PKCS8_R_DECODE_ERROR);
+ return NULL;
+ }
+ }
+
+ ret = PKCS8_decrypt_pbe(pkcs8, pass_raw, pass_raw_len);
+
+ if (pass_raw) {
+ OPENSSL_cleanse(pass_raw, pass_raw_len);
+ OPENSSL_free(pass_raw);
+ }
+ return ret;
+}
+
+PKCS8_PRIV_KEY_INFO *PKCS8_decrypt_pbe(X509_SIG *pkcs8, const uint8_t *pass_raw,
+ size_t pass_raw_len) {
+ return pkcs12_item_decrypt_d2i(pkcs8->algor,
+ ASN1_ITEM_rptr(PKCS8_PRIV_KEY_INFO), pass_raw,
+ pass_raw_len, pkcs8->digest);
+}
+
+static ASN1_OCTET_STRING *pkcs12_item_i2d_encrypt(X509_ALGOR *algor,
+ const ASN1_ITEM *it,
+ const uint8_t *pass_raw,
+ size_t pass_raw_len, void *obj) {
+ ASN1_OCTET_STRING *oct;
+ uint8_t *in = NULL;
+ int in_len;
+ size_t crypt_len;
+
+ oct = M_ASN1_OCTET_STRING_new();
+ if (oct == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_item_i2d_encrypt, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ in_len = ASN1_item_i2d(obj, &in, it);
+ if (!in) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_item_i2d_encrypt, PKCS8_R_ENCODE_ERROR);
+ return NULL;
+ }
+ if (!pbe_crypt(algor, pass_raw, pass_raw_len, in, in_len, &oct->data, &crypt_len,
+ 1 /* encrypt */)) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_item_i2d_encrypt, PKCS8_R_ENCRYPT_ERROR);
+ OPENSSL_free(in);
+ return NULL;
+ }
+ oct->length = crypt_len;
+ OPENSSL_cleanse(in, in_len);
+ OPENSSL_free(in);
+ return oct;
+}
+
+X509_SIG *PKCS8_encrypt(int pbe_nid, const EVP_CIPHER *cipher, const char *pass,
+ int pass_len, uint8_t *salt, size_t salt_len,
+ int iterations, PKCS8_PRIV_KEY_INFO *p8inf) {
+ uint8_t *pass_raw = NULL;
+ size_t pass_raw_len = 0;
+ X509_SIG *ret;
+
+ if (pass) {
+ if (pass_len == -1) {
+ pass_len = strlen(pass);
+ }
+ if (!ascii_to_ucs2(pass, pass_len, &pass_raw, &pass_raw_len)) {
+ OPENSSL_PUT_ERROR(PKCS8, pkcs12_key_gen_asc, PKCS8_R_DECODE_ERROR);
+ return NULL;
+ }
+ }
+
+ ret = PKCS8_encrypt_pbe(pbe_nid, pass_raw, pass_raw_len,
+ salt, salt_len, iterations, p8inf);
+
+ if (pass_raw) {
+ OPENSSL_cleanse(pass_raw, pass_raw_len);
+ OPENSSL_free(pass_raw);
+ }
+ return ret;
+}
+
+X509_SIG *PKCS8_encrypt_pbe(int pbe_nid,
+ const uint8_t *pass_raw, size_t pass_raw_len,
+ uint8_t *salt, size_t salt_len,
+ int iterations, PKCS8_PRIV_KEY_INFO *p8inf) {
+ X509_SIG *pkcs8 = NULL;
+ X509_ALGOR *pbe;
+
+ pkcs8 = X509_SIG_new();
+ if (pkcs8 == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS8_encrypt_pbe, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ pbe = PKCS5_pbe_set(pbe_nid, iterations, salt, salt_len);
+ if (!pbe) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS8_encrypt_pbe, ERR_R_ASN1_LIB);
+ goto err;
+ }
+
+ X509_ALGOR_free(pkcs8->algor);
+ pkcs8->algor = pbe;
+ M_ASN1_OCTET_STRING_free(pkcs8->digest);
+ pkcs8->digest = pkcs12_item_i2d_encrypt(
+ pbe, ASN1_ITEM_rptr(PKCS8_PRIV_KEY_INFO), pass_raw, pass_raw_len, p8inf);
+ if (!pkcs8->digest) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS8_encrypt_pbe, PKCS8_R_ENCRYPT_ERROR);
+ goto err;
+ }
+
+ return pkcs8;
+
+err:
+ X509_SIG_free(pkcs8);
+ return NULL;
+}
+
+EVP_PKEY *EVP_PKCS82PKEY(PKCS8_PRIV_KEY_INFO *p8) {
+ EVP_PKEY *pkey = NULL;
+ ASN1_OBJECT *algoid;
+ char obj_tmp[80];
+
+ if (!PKCS8_pkey_get0(&algoid, NULL, NULL, NULL, p8))
+ return NULL;
+
+ pkey = EVP_PKEY_new();
+ if (pkey == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKCS82PKEY, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+
+ if (!EVP_PKEY_set_type(pkey, OBJ_obj2nid(algoid))) {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKCS82PKEY,
+ PKCS8_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
+ i2t_ASN1_OBJECT(obj_tmp, 80, algoid);
+ ERR_add_error_data(2, "TYPE=", obj_tmp);
+ goto error;
+ }
+
+ if (pkey->ameth->priv_decode) {
+ if (!pkey->ameth->priv_decode(pkey, p8)) {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKCS82PKEY, PKCS8_R_PRIVATE_KEY_DECODE_ERROR);
+ goto error;
+ }
+ } else {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKCS82PKEY, PKCS8_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+
+ return pkey;
+
+error:
+ EVP_PKEY_free(pkey);
+ return NULL;
+}
+
+PKCS8_PRIV_KEY_INFO *EVP_PKEY2PKCS8(EVP_PKEY *pkey) {
+ PKCS8_PRIV_KEY_INFO *p8;
+
+ p8 = PKCS8_PRIV_KEY_INFO_new();
+ if (p8 == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKEY2PKCS8, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ p8->broken = PKCS8_OK;
+
+ if (pkey->ameth) {
+ if (pkey->ameth->priv_encode) {
+ if (!pkey->ameth->priv_encode(p8, pkey)) {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKEY2PKCS8,
+ PKCS8_R_PRIVATE_KEY_ENCODE_ERROR);
+ goto error;
+ }
+ } else {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKEY2PKCS8, PKCS8_R_METHOD_NOT_SUPPORTED);
+ goto error;
+ }
+ } else {
+ OPENSSL_PUT_ERROR(PKCS8, EVP_PKEY2PKCS8,
+ PKCS8_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM);
+ goto error;
+ }
+ return p8;
+
+error:
+ PKCS8_PRIV_KEY_INFO_free(p8);
+ return NULL;
+}
+
+struct pkcs12_context {
+ EVP_PKEY **out_key;
+ STACK_OF(X509) *out_certs;
+ uint8_t *password;
+ size_t password_len;
+};
+
+static int PKCS12_handle_content_info(CBS *content_info, unsigned depth,
+ struct pkcs12_context *ctx);
+
+/* PKCS12_handle_content_infos parses a series of PKCS#7 ContentInfos in a
+ * SEQUENCE. */
+static int PKCS12_handle_content_infos(CBS *content_infos,
+ unsigned depth,
+ struct pkcs12_context *ctx) {
+ uint8_t *der_bytes = NULL;
+ size_t der_len;
+ CBS in;
+ int ret = 0;
+
+ /* Generally we only expect depths 0 (the top level, with a
+ * pkcs7-encryptedData and a pkcs7-data) and depth 1 (the various PKCS#12
+ * bags). */
+ if (depth > 3) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_infos,
+ PKCS8_R_PKCS12_TOO_DEEPLY_NESTED);
+ return 0;
+ }
+
+ /* Although a BER->DER conversion is done at the beginning of |PKCS12_parse|,
+ * the ASN.1 data gets wrapped in OCTETSTRINGs and/or encrypted and the
+ * conversion cannot see through those wrappings. So each time we step
+ * through one we need to convert to DER again. */
+ if (!CBS_asn1_ber_to_der(content_infos, &der_bytes, &der_len)) {
+ return 0;
+ }
+
+ if (der_bytes != NULL) {
+ CBS_init(&in, der_bytes, der_len);
+ } else {
+ CBS_init(&in, CBS_data(content_infos), CBS_len(content_infos));
+ }
+
+ if (!CBS_get_asn1(&in, &in, CBS_ASN1_SEQUENCE)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_infos,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ while (CBS_len(&in) > 0) {
+ CBS content_info;
+ if (!CBS_get_asn1(&in, &content_info, CBS_ASN1_SEQUENCE)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_infos,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ if (!PKCS12_handle_content_info(&content_info, depth + 1, ctx)) {
+ goto err;
+ }
+ }
+
+ /* NSS includes additional data after the SEQUENCE, but it's an (unwrapped)
+ * copy of the same encrypted private key (with the same IV and
+ * ciphertext)! */
+
+ ret = 1;
+
+err:
+ if (der_bytes != NULL) {
+ OPENSSL_free(der_bytes);
+ }
+ return ret;
+}
+
+/* PKCS12_handle_content_info parses a single PKCS#7 ContentInfo element in a
+ * PKCS#12 structure. */
+static int PKCS12_handle_content_info(CBS *content_info, unsigned depth,
+ struct pkcs12_context *ctx) {
+ CBS content_type, wrapped_contents, contents, content_infos;
+ int nid, ret = 0;
+
+ if (!CBS_get_asn1(content_info, &content_type, CBS_ASN1_OBJECT) ||
+ !CBS_get_asn1(content_info, &wrapped_contents,
+ CBS_ASN1_CONTEXT_SPECIFIC | CBS_ASN1_CONSTRUCTED | 0)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ nid = OBJ_cbs2nid(&content_type);
+ if (nid == NID_pkcs7_encrypted) {
+ /* See https://tools.ietf.org/html/rfc2315#section-13.
+ *
+ * PKCS#7 encrypted data inside a PKCS#12 structure is generally an
+ * encrypted certificate bag and it's generally encrypted with 40-bit
+ * RC2-CBC. */
+ CBS version_bytes, eci, contents_type, ai, encrypted_contents;
+ X509_ALGOR *algor = NULL;
+ const uint8_t *inp;
+ uint8_t *out;
+ size_t out_len;
+
+ if (!CBS_get_asn1(&wrapped_contents, &contents, CBS_ASN1_SEQUENCE) ||
+ !CBS_get_asn1(&contents, &version_bytes, CBS_ASN1_INTEGER) ||
+ /* EncryptedContentInfo, see
+ * https://tools.ietf.org/html/rfc2315#section-10.1 */
+ !CBS_get_asn1(&contents, &eci, CBS_ASN1_SEQUENCE) ||
+ !CBS_get_asn1(&eci, &contents_type, CBS_ASN1_OBJECT) ||
+ /* AlgorithmIdentifier, see
+ * https://tools.ietf.org/html/rfc5280#section-4.1.1.2 */
+ !CBS_get_asn1_element(&eci, &ai, CBS_ASN1_SEQUENCE) ||
+ !CBS_get_asn1(&eci, &encrypted_contents,
+ CBS_ASN1_CONTEXT_SPECIFIC | 0)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ if (OBJ_cbs2nid(&contents_type) != NID_pkcs7_data) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ inp = CBS_data(&ai);
+ algor = d2i_X509_ALGOR(NULL, &inp, CBS_len(&ai));
+ if (algor == NULL) {
+ goto err;
+ }
+ if (inp != CBS_data(&ai) + CBS_len(&ai)) {
+ X509_ALGOR_free(algor);
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ if (!pbe_crypt(algor, ctx->password, ctx->password_len,
+ CBS_data(&encrypted_contents), CBS_len(&encrypted_contents),
+ &out, &out_len, 0 /* decrypt */)) {
+ X509_ALGOR_free(algor);
+ goto err;
+ }
+ X509_ALGOR_free(algor);
+
+ CBS_init(&content_infos, out, out_len);
+ ret = PKCS12_handle_content_infos(&content_infos, depth + 1, ctx);
+ OPENSSL_free(out);
+ } else if (nid == NID_pkcs7_data) {
+ CBS octet_string_contents;
+
+ if (!CBS_get_asn1(&wrapped_contents, &octet_string_contents,
+ CBS_ASN1_OCTETSTRING)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ ret = PKCS12_handle_content_infos(&octet_string_contents, depth + 1, ctx);
+ } else if (nid == NID_pkcs8ShroudedKeyBag) {
+ /* See ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12v1.pdf, section
+ * 4.2.2. */
+ const uint8_t *inp = CBS_data(&wrapped_contents);
+ PKCS8_PRIV_KEY_INFO *pki = NULL;
+ X509_SIG *encrypted = NULL;
+
+ if (*ctx->out_key) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_MULTIPLE_PRIVATE_KEYS_IN_PKCS12);
+ goto err;
+ }
+
+ /* encrypted isn't actually an X.509 signature, but it has the same
+ * structure as one and so |X509_SIG| is reused to store it. */
+ encrypted = d2i_X509_SIG(NULL, &inp, CBS_len(&wrapped_contents));
+ if (encrypted == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+ if (inp != CBS_data(&wrapped_contents) + CBS_len(&wrapped_contents)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ X509_SIG_free(encrypted);
+ goto err;
+ }
+
+ pki = PKCS8_decrypt_pbe(encrypted, ctx->password, ctx->password_len);
+ X509_SIG_free(encrypted);
+ if (pki == NULL) {
+ goto err;
+ }
+
+ *ctx->out_key = EVP_PKCS82PKEY(pki);
+ PKCS8_PRIV_KEY_INFO_free(pki);
+
+ if (ctx->out_key == NULL) {
+ goto err;
+ }
+ ret = 1;
+ } else if (nid == NID_certBag) {
+ CBS cert_bag, cert_type, wrapped_cert, cert;
+
+ if (!CBS_get_asn1(&wrapped_contents, &cert_bag, CBS_ASN1_SEQUENCE) ||
+ !CBS_get_asn1(&cert_bag, &cert_type, CBS_ASN1_OBJECT) ||
+ !CBS_get_asn1(&cert_bag, &wrapped_cert,
+ CBS_ASN1_CONTEXT_SPECIFIC | CBS_ASN1_CONSTRUCTED | 0) ||
+ !CBS_get_asn1(&wrapped_cert, &cert, CBS_ASN1_OCTETSTRING)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ if (OBJ_cbs2nid(&cert_type) == NID_x509Certificate) {
+ const uint8_t *inp = CBS_data(&cert);
+ X509 *x509 = d2i_X509(NULL, &inp, CBS_len(&cert));
+ if (!x509) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+ if (inp != CBS_data(&cert) + CBS_len(&cert)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_handle_content_info,
+ PKCS8_R_BAD_PKCS12_DATA);
+ X509_free(x509);
+ goto err;
+ }
+
+ if (0 == sk_X509_push(ctx->out_certs, x509)) {
+ X509_free(x509);
+ goto err;
+ }
+ }
+ ret = 1;
+ } else {
+ /* Unknown element type - ignore it. */
+ ret = 1;
+ }
+
+err:
+ return ret;
+}
+
+int PKCS12_get_key_and_certs(EVP_PKEY **out_key, STACK_OF(X509) *out_certs,
+ CBS *ber_in, const char *password) {
+ uint8_t *der_bytes = NULL;
+ size_t der_len;
+ CBS in, pfx, mac_data, authsafe, content_type, wrapped_authsafes, authsafes;
+ uint64_t version;
+ int ret = 0;
+ struct pkcs12_context ctx;
+ const size_t original_out_certs_len = sk_X509_num(out_certs);
+
+ /* The input may be in BER format. */
+ if (!CBS_asn1_ber_to_der(ber_in, &der_bytes, &der_len)) {
+ return 0;
+ }
+ if (der_bytes != NULL) {
+ CBS_init(&in, der_bytes, der_len);
+ } else {
+ CBS_init(&in, CBS_data(ber_in), CBS_len(ber_in));
+ }
+
+ *out_key = NULL;
+ memset(&ctx, 0, sizeof(ctx));
+
+ /* See ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12v1.pdf, section
+ * four. */
+ if (!CBS_get_asn1(&in, &pfx, CBS_ASN1_SEQUENCE) ||
+ CBS_len(&in) != 0 ||
+ !CBS_get_asn1_uint64(&pfx, &version)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ if (version < 3) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_VERSION);
+ goto err;
+ }
+
+ if (!CBS_get_asn1(&pfx, &authsafe, CBS_ASN1_SEQUENCE)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ if (CBS_len(&pfx) == 0) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_MISSING_MAC);
+ goto err;
+ }
+
+ if (!CBS_get_asn1(&pfx, &mac_data, CBS_ASN1_SEQUENCE)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ /* authsafe is a PKCS#7 ContentInfo. See
+ * https://tools.ietf.org/html/rfc2315#section-7. */
+ if (!CBS_get_asn1(&authsafe, &content_type, CBS_ASN1_OBJECT) ||
+ !CBS_get_asn1(&authsafe, &wrapped_authsafes,
+ CBS_ASN1_CONTEXT_SPECIFIC | CBS_ASN1_CONSTRUCTED | 0)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ /* The content type can either be |NID_pkcs7_data| or |NID_pkcs7_signed|. The
+ * latter indicates that it's signed by a public key, which isn't
+ * supported. */
+ if (OBJ_cbs2nid(&content_type) != NID_pkcs7_data) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse,
+ PKCS8_R_PKCS12_PUBLIC_KEY_INTEGRITY_NOT_SUPPORTED);
+ goto err;
+ }
+
+ if (!CBS_get_asn1(&wrapped_authsafes, &authsafes, CBS_ASN1_OCTETSTRING)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ ctx.out_key = out_key;
+ ctx.out_certs = out_certs;
+ if (!ascii_to_ucs2(password, strlen(password), &ctx.password,
+ &ctx.password_len)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_DECODE_ERROR);
+ goto err;
+ }
+
+ /* Verify the MAC. */
+ {
+ CBS mac, hash_type_seq, hash_oid, salt, expected_mac;
+ uint64_t iterations;
+ int hash_nid;
+ const EVP_MD *md;
+ uint8_t hmac_key[EVP_MAX_MD_SIZE];
+ uint8_t hmac[EVP_MAX_MD_SIZE];
+ unsigned hmac_len;
+
+ if (!CBS_get_asn1(&mac_data, &mac, CBS_ASN1_SEQUENCE) ||
+ !CBS_get_asn1(&mac, &hash_type_seq, CBS_ASN1_SEQUENCE) ||
+ !CBS_get_asn1(&hash_type_seq, &hash_oid, CBS_ASN1_OBJECT) ||
+ !CBS_get_asn1(&mac, &expected_mac, CBS_ASN1_OCTETSTRING) ||
+ !CBS_get_asn1(&mac_data, &salt, CBS_ASN1_OCTETSTRING)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+
+ /* The iteration count is optional and the default is one. */
+ iterations = 1;
+ if (CBS_len(&mac_data) > 0) {
+ if (!CBS_get_asn1_uint64(&mac_data, &iterations) ||
+ iterations > INT_MAX) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_BAD_PKCS12_DATA);
+ goto err;
+ }
+ }
+
+ hash_nid = OBJ_cbs2nid(&hash_oid);
+ if (hash_nid == NID_undef ||
+ (md = EVP_get_digestbynid(hash_nid)) == NULL) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_UNKNOWN_HASH);
+ goto err;
+ }
+
+ if (!pkcs12_key_gen_raw(ctx.password, ctx.password_len, CBS_data(&salt),
+ CBS_len(&salt), PKCS12_MAC_ID, iterations,
+ EVP_MD_size(md), hmac_key, md)) {
+ goto err;
+ }
+
+ if (NULL == HMAC(md, hmac_key, EVP_MD_size(md), CBS_data(&authsafes),
+ CBS_len(&authsafes), hmac, &hmac_len)) {
+ goto err;
+ }
+
+ if (!CBS_mem_equal(&expected_mac, hmac, hmac_len)) {
+ OPENSSL_PUT_ERROR(PKCS8, PKCS12_parse, PKCS8_R_INCORRECT_PASSWORD);
+ goto err;
+ }
+ }
+
+ /* authsafes contains a series of PKCS#7 ContentInfos. */
+ if (!PKCS12_handle_content_infos(&authsafes, 0, &ctx)) {
+ goto err;
+ }
+
+ ret = 1;
+
+err:
+ if (ctx.password) {
+ OPENSSL_free(ctx.password);
+ }
+ if (der_bytes) {
+ OPENSSL_free(der_bytes);
+ }
+ if (!ret) {
+ if (*out_key) {
+ EVP_PKEY_free(*out_key);
+ *out_key = NULL;
+ }
+ while (sk_X509_num(out_certs) > original_out_certs_len) {
+ X509 *x509 = sk_X509_pop(out_certs);
+ X509_free(x509);
+ }
+ }
+
+ return ret;
+}
+
+void PKCS12_PBE_add(void) {}
+
+struct pkcs12_st {
+ uint8_t *ber_bytes;
+ size_t ber_len;
+};
+
+PKCS12* d2i_PKCS12(PKCS12 **out_p12, const uint8_t **ber_bytes, size_t ber_len) {
+ PKCS12 *p12;
+
+ /* out_p12 must be NULL because we don't export the PKCS12 structure. */
+ assert(out_p12 == NULL);
+
+ p12 = OPENSSL_malloc(sizeof(PKCS12));
+ if (!p12) {
+ return NULL;
+ }
+
+ p12->ber_bytes = OPENSSL_malloc(ber_len);
+ if (!p12->ber_bytes) {
+ OPENSSL_free(p12);
+ return NULL;
+ }
+
+ memcpy(p12->ber_bytes, *ber_bytes, ber_len);
+ p12->ber_len = ber_len;
+ *ber_bytes += ber_len;
+
+ return p12;
+}
+
+PKCS12* d2i_PKCS12_bio(BIO *bio, PKCS12 **out_p12) {
+ size_t used = 0;
+ BUF_MEM *buf;
+ const uint8_t *dummy;
+ static const size_t kMaxSize = 256 * 1024;
+ PKCS12 *ret = NULL;
+
+ buf = BUF_MEM_new();
+ if (buf == NULL) {
+ return NULL;
+ }
+ if (BUF_MEM_grow(buf, 8192) == 0) {
+ goto out;
+ }
+
+ for (;;) {
+ int n = BIO_read(bio, &buf->data[used], buf->length - used);
+ if (n < 0) {
+ goto out;
+ }
+
+ if (n == 0) {
+ break;
+ }
+ used += n;
+
+ if (used < buf->length) {
+ continue;
+ }
+
+ if (buf->length > kMaxSize ||
+ BUF_MEM_grow(buf, buf->length * 2) == 0) {
+ goto out;
+ }
+ }
+
+ dummy = (uint8_t*) buf->data;
+ ret = d2i_PKCS12(out_p12, &dummy, used);
+
+out:
+ BUF_MEM_free(buf);
+ return ret;
+}
+
+PKCS12* d2i_PKCS12_fp(FILE *fp, PKCS12 **out_p12) {
+ BIO *bio;
+ PKCS12 *ret;
+
+ bio = BIO_new_fp(fp, 0 /* don't take ownership */);
+ if (!bio) {
+ return NULL;
+ }
+
+ ret = d2i_PKCS12_bio(bio, out_p12);
+ BIO_free(bio);
+ return ret;
+}
+
+int PKCS12_parse(const PKCS12 *p12, const char *password, EVP_PKEY **out_pkey,
+ X509 **out_cert, STACK_OF(X509) **out_ca_certs) {
+ CBS ber_bytes;
+ STACK_OF(X509) *ca_certs = NULL;
+ char ca_certs_alloced = 0;
+
+ if (out_ca_certs != NULL && *out_ca_certs != NULL) {
+ ca_certs = *out_ca_certs;
+ }
+
+ if (!ca_certs) {
+ ca_certs = sk_X509_new_null();
+ if (ca_certs == NULL) {
+ return 0;
+ }
+ ca_certs_alloced = 1;
+ }
+
+ CBS_init(&ber_bytes, p12->ber_bytes, p12->ber_len);
+ if (!PKCS12_get_key_and_certs(out_pkey, ca_certs, &ber_bytes, password)) {
+ if (ca_certs_alloced) {
+ sk_X509_free(ca_certs);
+ }
+ return 0;
+ }
+
+ *out_cert = NULL;
+ if (sk_X509_num(ca_certs) > 0) {
+ *out_cert = sk_X509_shift(ca_certs);
+ }
+
+ if (out_ca_certs) {
+ *out_ca_certs = ca_certs;
+ } else {
+ sk_X509_pop_free(ca_certs, X509_free);
+ }
+
+ return 1;
+}
+
+void PKCS12_free(PKCS12 *p12) {
+ OPENSSL_free(p12->ber_bytes);
+ OPENSSL_free(p12);
+}