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      1 /* Written by Dr Stephen N Henson (steve (at) openssl.org) for the OpenSSL
      2  * project 1999.
      3  */
      4 /* ====================================================================
      5  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  *
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  *
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in
     16  *    the documentation and/or other materials provided with the
     17  *    distribution.
     18  *
     19  * 3. All advertising materials mentioning features or use of this
     20  *    software must display the following acknowledgment:
     21  *    "This product includes software developed by the OpenSSL Project
     22  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
     23  *
     24  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
     25  *    endorse or promote products derived from this software without
     26  *    prior written permission. For written permission, please contact
     27  *    licensing (at) OpenSSL.org.
     28  *
     29  * 5. Products derived from this software may not be called "OpenSSL"
     30  *    nor may "OpenSSL" appear in their names without prior written
     31  *    permission of the OpenSSL Project.
     32  *
     33  * 6. Redistributions of any form whatsoever must retain the following
     34  *    acknowledgment:
     35  *    "This product includes software developed by the OpenSSL Project
     36  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
     37  *
     38  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
     39  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     40  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     41  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
     42  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     43  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     44  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     45  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     46  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     47  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     48  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
     49  * OF THE POSSIBILITY OF SUCH DAMAGE.
     50  * ====================================================================
     51  *
     52  * This product includes cryptographic software written by Eric Young
     53  * (eay (at) cryptsoft.com).  This product includes software written by Tim
     54  * Hudson (tjh (at) cryptsoft.com). */
     55 
     56 
     57 #ifndef OPENSSL_HEADER_PKCS8_H
     58 #define OPENSSL_HEADER_PKCS8_H
     59 
     60 #include <openssl/base.h>
     61 #include <openssl/x509.h>
     62 
     63 
     64 #if defined(__cplusplus)
     65 extern "C" {
     66 #endif
     67 
     68 
     69 /* PKCS8_encrypt_pbe serializes and encrypts a PKCS8_PRIV_KEY_INFO with PBES1 or
     70  * PBES2 as defined in PKCS #5. Only pbeWithSHAAnd128BitRC4,
     71  * pbeWithSHAAnd3-KeyTripleDES-CBC and pbeWithSHA1And40BitRC2, defined in PKCS
     72  * #12, and PBES2, are supported.  PBES2 is selected by setting |cipher| and
     73  * passing -1 for |pbe_nid|.  Otherwise, PBES1 is used and |cipher| is ignored.
     74  *
     75  * The |pass_raw_len| bytes pointed to by |pass_raw| are used as the password.
     76  * Note that any conversions from the password as supplied in a text string
     77  * (such as those specified in B.1 of PKCS #12) must be performed by the caller.
     78  *
     79  * If |salt| is NULL, a random salt of |salt_len| bytes is generated. If
     80  * |salt_len| is zero, a default salt length is used instead.
     81  *
     82  * The resulting structure is stored in an X509_SIG which must be freed by the
     83  * caller.
     84  *
     85  * TODO(davidben): Really? An X509_SIG? OpenSSL probably did that because it has
     86  * the same structure as EncryptedPrivateKeyInfo. */
     87 OPENSSL_EXPORT X509_SIG *PKCS8_encrypt_pbe(int pbe_nid,
     88                                            const EVP_CIPHER *cipher,
     89                                            const uint8_t *pass_raw,
     90                                            size_t pass_raw_len,
     91                                            uint8_t *salt, size_t salt_len,
     92                                            int iterations,
     93                                            PKCS8_PRIV_KEY_INFO *p8inf);
     94 
     95 /* PKCS8_decrypt_pbe decrypts and decodes a PKCS8_PRIV_KEY_INFO with PBES1 or
     96  * PBES2 as defined in PKCS #5. Only pbeWithSHAAnd128BitRC4,
     97  * pbeWithSHAAnd3-KeyTripleDES-CBC and pbeWithSHA1And40BitRC2, and PBES2,
     98  * defined in PKCS #12, are supported.
     99  *
    100  * The |pass_raw_len| bytes pointed to by |pass_raw| are used as the password.
    101  * Note that any conversions from the password as supplied in a text string
    102  * (such as those specified in B.1 of PKCS #12) must be performed by the caller.
    103  *
    104  * The resulting structure must be freed by the caller. */
    105 OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO *PKCS8_decrypt_pbe(X509_SIG *pkcs8,
    106                                                       const uint8_t *pass_raw,
    107                                                       size_t pass_raw_len);
    108 
    109 /* PKCS12_get_key_and_certs parses a PKCS#12 structure from |in|, authenticates
    110  * and decrypts it using |password|, sets |*out_key| to the included private
    111  * key and appends the included certificates to |out_certs|. It returns one on
    112  * success and zero on error. The caller takes ownership of the outputs. */
    113 OPENSSL_EXPORT int PKCS12_get_key_and_certs(EVP_PKEY **out_key,
    114                                             STACK_OF(X509) *out_certs,
    115                                             CBS *in, const char *password);
    116 
    117 
    118 /* Deprecated functions. */
    119 
    120 /* PKCS8_encrypt calls |PKCS8_encrypt_pbe| after (in the PKCS#12 case) treating
    121  * |pass| as an ASCII string, appending U+0000, and converting to UCS-2. (So the
    122  * empty password encodes as two NUL bytes.) In the PBES2 case, the password is
    123  * unchanged.  */
    124 OPENSSL_EXPORT X509_SIG *PKCS8_encrypt(int pbe_nid, const EVP_CIPHER *cipher,
    125                                        const char *pass, int pass_len,
    126                                        uint8_t *salt, size_t salt_len,
    127                                        int iterations,
    128                                        PKCS8_PRIV_KEY_INFO *p8inf);
    129 
    130 /* PKCS8_decrypt calls PKCS8_decrypt_pbe after (in the PKCS#12 case) treating
    131  * |pass| as an ASCII string, appending U+0000, and converting to UCS-2. (So the
    132  *  empty password encodes as two NUL bytes.) In the PBES2 case, the password is
    133  * unchanged. */
    134 OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO *PKCS8_decrypt(X509_SIG *pkcs8,
    135                                                   const char *pass,
    136                                                   int pass_len);
    137 
    138 /* PKCS12_PBE_add does nothing. It exists for compatibility with OpenSSL. */
    139 OPENSSL_EXPORT void PKCS12_PBE_add(void);
    140 
    141 /* d2i_PKCS12 is a dummy function that copies |*ber_bytes| into a
    142  * |PKCS12| structure. The |out_p12| argument must be NULL. On exit,
    143  * |*ber_bytes| will be advanced by |ber_len|. It returns a fresh |PKCS12|
    144  * structure or NULL on error.
    145  *
    146  * Note: unlike other d2i functions, |d2i_PKCS12| will always consume |ber_len|
    147  * bytes.*/
    148 OPENSSL_EXPORT PKCS12 *d2i_PKCS12(PKCS12 **out_p12, const uint8_t **ber_bytes,
    149                                   size_t ber_len);
    150 
    151 /* d2i_PKCS12_bio acts like |d2i_PKCS12| but reads from a |BIO|. */
    152 OPENSSL_EXPORT PKCS12* d2i_PKCS12_bio(BIO *bio, PKCS12 **out_p12);
    153 
    154 /* d2i_PKCS12_fp acts like |d2i_PKCS12| but reads from a |FILE|. */
    155 OPENSSL_EXPORT PKCS12* d2i_PKCS12_fp(FILE *fp, PKCS12 **out_p12);
    156 
    157 /* PKCS12_parse calls |PKCS12_get_key_and_certs| on the ASN.1 data stored in
    158  * |p12|. The |out_pkey| and |out_cert| arguments must not be NULL and, on
    159  * successful exit, the private key and first certificate will be stored in
    160  * them. The |out_ca_certs| argument may be NULL but, if not, then any extra
    161  * certificates will be appended to |*out_ca_certs|. If |*out_ca_certs| is NULL
    162  * then it will be set to a freshly allocated stack containing the extra certs.
    163  *
    164  * It returns one on success and zero on error. */
    165 OPENSSL_EXPORT int PKCS12_parse(const PKCS12 *p12, const char *password,
    166                                 EVP_PKEY **out_pkey, X509 **out_cert,
    167                                 STACK_OF(X509) **out_ca_certs);
    168 
    169 /* PKCS12_verify_mac returns one if |password| is a valid password for |p12|
    170  * and zero otherwise. Since |PKCS12_parse| doesn't take a length parameter,
    171  * it's not actually possible to use a non-NUL-terminated password to actually
    172  * get anything from a |PKCS12|. Thus |password| and |password_len| may be
    173  * |NULL| and zero, respectively, or else |password_len| may be -1, or else
    174  * |password[password_len]| must be zero and no other NUL bytes may appear in
    175  * |password|. If the |password_len| checks fail, zero is returned
    176  * immediately. */
    177 OPENSSL_EXPORT int PKCS12_verify_mac(const PKCS12 *p12, const char *password,
    178                                      int password_len);
    179 
    180 /* PKCS12_free frees |p12| and its contents. */
    181 OPENSSL_EXPORT void PKCS12_free(PKCS12 *p12);
    182 
    183 
    184 #if defined(__cplusplus)
    185 }  /* extern C */
    186 #endif
    187 
    188 #define PKCS8_R_BAD_PKCS12_DATA 100
    189 #define PKCS8_R_BAD_PKCS12_VERSION 101
    190 #define PKCS8_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER 102
    191 #define PKCS8_R_CRYPT_ERROR 103
    192 #define PKCS8_R_DECODE_ERROR 104
    193 #define PKCS8_R_ENCODE_ERROR 105
    194 #define PKCS8_R_ENCRYPT_ERROR 106
    195 #define PKCS8_R_ERROR_SETTING_CIPHER_PARAMS 107
    196 #define PKCS8_R_INCORRECT_PASSWORD 108
    197 #define PKCS8_R_KEYGEN_FAILURE 109
    198 #define PKCS8_R_KEY_GEN_ERROR 110
    199 #define PKCS8_R_METHOD_NOT_SUPPORTED 111
    200 #define PKCS8_R_MISSING_MAC 112
    201 #define PKCS8_R_MULTIPLE_PRIVATE_KEYS_IN_PKCS12 113
    202 #define PKCS8_R_PKCS12_PUBLIC_KEY_INTEGRITY_NOT_SUPPORTED 114
    203 #define PKCS8_R_PKCS12_TOO_DEEPLY_NESTED 115
    204 #define PKCS8_R_PRIVATE_KEY_DECODE_ERROR 116
    205 #define PKCS8_R_PRIVATE_KEY_ENCODE_ERROR 117
    206 #define PKCS8_R_TOO_LONG 118
    207 #define PKCS8_R_UNKNOWN_ALGORITHM 119
    208 #define PKCS8_R_UNKNOWN_CIPHER 120
    209 #define PKCS8_R_UNKNOWN_CIPHER_ALGORITHM 121
    210 #define PKCS8_R_UNKNOWN_DIGEST 122
    211 #define PKCS8_R_UNKNOWN_HASH 123
    212 #define PKCS8_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM 124
    213 #define PKCS8_R_UNSUPPORTED_KEYLENGTH 125
    214 #define PKCS8_R_UNSUPPORTED_SALT_TYPE 126
    215 #define PKCS8_R_UNSUPPORTED_CIPHER 127
    216 #define PKCS8_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION 128
    217 #define PKCS8_R_BAD_ITERATION_COUNT 129
    218 #define PKCS8_R_UNSUPPORTED_PRF 130
    219 
    220 #endif  /* OPENSSL_HEADER_PKCS8_H */
    221