271 lines
13 KiB
C
271 lines
13 KiB
C
// Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 1999.
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// Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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// SPDX-License-Identifier: Apache-2.0
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#ifndef OPENSSL_HEADER_PKCS8_H
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#define OPENSSL_HEADER_PKCS8_H
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#include <openssl/base.h>
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#include <openssl/x509.h>
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#if defined(__cplusplus)
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extern "C" {
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#endif
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// PKCS8_encrypt serializes and encrypts a PKCS8_PRIV_KEY_INFO with PBES1 or
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// PBES2 as defined in PKCS #5. Only pbeWithSHAAnd128BitRC4,
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// pbeWithSHAAnd3-KeyTripleDES-CBC and pbeWithSHA1And40BitRC2, defined in PKCS
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// #12, and PBES2, are supported. PBES2 is selected by setting |cipher| and
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// passing -1 for |pbe_nid|. Otherwise, PBES1 is used and |cipher| is ignored.
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//
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// |pass| is used as the password. If a PBES1 scheme from PKCS #12 is used, this
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// will be converted to a raw byte string as specified in B.1 of PKCS #12. If
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// |pass| is NULL, it is treated as an empty password and |pass_len| is ignored.
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// This will be encoded as the empty byte string rather than two zero bytes, the
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// PKCS #12 encoding of the empty string. If |pass| is non-NULL and |pass_len|
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// is negative, |strlen(pass)| is used. If |pass| is non-NULL and |pass_len| is
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// non-negative, |pass_len| bytes are used as the password.
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//
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// If |salt| is NULL, a random salt of |salt_len| bytes is generated. If
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// |salt_len| is zero, a default salt length is used instead.
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//
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// The resulting structure is stored in an |X509_SIG| which must be freed by the
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// caller.
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OPENSSL_EXPORT X509_SIG *PKCS8_encrypt(int pbe_nid, const EVP_CIPHER *cipher,
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const char *pass, int pass_len,
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const uint8_t *salt, size_t salt_len,
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int iterations,
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PKCS8_PRIV_KEY_INFO *p8inf);
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// PKCS8_marshal_encrypted_private_key behaves like |PKCS8_encrypt| but encrypts
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// an |EVP_PKEY| and writes the serialized EncryptedPrivateKeyInfo to |out|. It
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// returns one on success and zero on error.
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OPENSSL_EXPORT int PKCS8_marshal_encrypted_private_key(
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CBB *out, int pbe_nid, const EVP_CIPHER *cipher, const char *pass,
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size_t pass_len, const uint8_t *salt, size_t salt_len, int iterations,
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const EVP_PKEY *pkey);
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// PKCS8_decrypt decrypts and decodes a PKCS8_PRIV_KEY_INFO with PBES1 or PBES2
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// as defined in PKCS #5. Only pbeWithSHAAnd128BitRC4,
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// pbeWithSHAAnd3-KeyTripleDES-CBC and pbeWithSHA1And40BitRC2, and PBES2,
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// defined in PKCS #12, are supported.
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//
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// |pass| is used as the password. If a PBES1 scheme from PKCS #12 is used, this
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// will be converted to a raw byte string as specified in B.1 of PKCS #12. If
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// |pass| is NULL, it will be encoded as the empty byte string rather than two
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// zero bytes, the PKCS #12 encoding of the empty string. If |pass_len| is
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// negative and |pass| is non-NULL, |strlen(pass)| is used.
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//
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// The resulting structure must be freed by the caller.
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OPENSSL_EXPORT PKCS8_PRIV_KEY_INFO *PKCS8_decrypt(X509_SIG *pkcs8,
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const char *pass,
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int pass_len);
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// PKCS8_parse_encrypted_private_key behaves like |PKCS8_decrypt| but it parses
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// the EncryptedPrivateKeyInfo structure from |cbs| and advances |cbs|. It
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// returns a newly-allocated |EVP_PKEY| on success and zero on error.
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OPENSSL_EXPORT EVP_PKEY *PKCS8_parse_encrypted_private_key(CBS *cbs,
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const char *pass,
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size_t pass_len);
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// PKCS12_get_key_and_certs parses a PKCS#12 structure from |in|, authenticates
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// and decrypts it using |password|, sets |*out_key| to the included private
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// key and appends the included certificates to |out_certs|. It returns one on
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// success and zero on error. The caller takes ownership of the outputs.
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// Any friendlyName attributes (RFC 2985) in the PKCS#12 structure will be
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// returned on the |X509| objects as aliases. See also |X509_alias_get0|.
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OPENSSL_EXPORT int PKCS12_get_key_and_certs(EVP_PKEY **out_key,
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STACK_OF(X509) *out_certs, CBS *in,
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const char *password);
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// Deprecated functions.
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// PKCS12_PBE_add does nothing. It exists for compatibility with OpenSSL.
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OPENSSL_EXPORT void PKCS12_PBE_add(void);
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// d2i_PKCS12 is a dummy function that copies |*ber_bytes| into a
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// |PKCS12| structure. The |out_p12| argument should be NULL(✝). On exit,
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// |*ber_bytes| will be advanced by |ber_len|. It returns a fresh |PKCS12|
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// structure or NULL on error.
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//
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// Note: unlike other d2i functions, |d2i_PKCS12| will always consume |ber_len|
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// bytes.
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//
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// (✝) If |out_p12| is not NULL and the function is successful, |*out_p12| will
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// be freed if not NULL itself and the result will be written to |*out_p12|.
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// New code should not depend on this.
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OPENSSL_EXPORT PKCS12 *d2i_PKCS12(PKCS12 **out_p12, const uint8_t **ber_bytes,
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size_t ber_len);
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// d2i_PKCS12_bio acts like |d2i_PKCS12| but reads from a |BIO|.
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OPENSSL_EXPORT PKCS12 *d2i_PKCS12_bio(BIO *bio, PKCS12 **out_p12);
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// d2i_PKCS12_fp acts like |d2i_PKCS12| but reads from a |FILE|.
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OPENSSL_EXPORT PKCS12 *d2i_PKCS12_fp(FILE *fp, PKCS12 **out_p12);
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// i2d_PKCS12 is a dummy function which copies the contents of |p12|. If |out|
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// is not NULL then the result is written to |*out| and |*out| is advanced just
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// past the output. It returns the number of bytes in the result, whether
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// written or not, or a negative value on error.
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OPENSSL_EXPORT int i2d_PKCS12(const PKCS12 *p12, uint8_t **out);
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// i2d_PKCS12_bio writes the contents of |p12| to |bio|. It returns one on
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// success and zero on error.
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OPENSSL_EXPORT int i2d_PKCS12_bio(BIO *bio, const PKCS12 *p12);
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// i2d_PKCS12_fp writes the contents of |p12| to |fp|. It returns one on
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// success and zero on error.
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OPENSSL_EXPORT int i2d_PKCS12_fp(FILE *fp, const PKCS12 *p12);
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// PKCS12_parse calls |PKCS12_get_key_and_certs| on the ASN.1 data stored in
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// |p12|. The |out_pkey| and |out_cert| arguments must not be NULL and, on
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// successful exit, the private key and matching certificate will be stored in
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// them. The |out_ca_certs| argument may be NULL but, if not, then any extra
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// certificates will be appended to |*out_ca_certs|. If |*out_ca_certs| is NULL
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// then it will be set to a freshly allocated stack containing the extra certs.
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//
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// Note if |p12| does not contain a private key, both |*out_pkey| and
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// |*out_cert| will be set to NULL and all certificates will be returned via
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// |*out_ca_certs|. Also note this function differs from OpenSSL in that extra
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// certificates are returned in the order they appear in the file. OpenSSL 1.1.1
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// returns them in reverse order, but this will be fixed in OpenSSL 3.0.
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//
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// It returns one on success and zero on error.
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//
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// Use |PKCS12_get_key_and_certs| instead.
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OPENSSL_EXPORT int PKCS12_parse(const PKCS12 *p12, const char *password,
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EVP_PKEY **out_pkey, X509 **out_cert,
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STACK_OF(X509) **out_ca_certs);
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// PKCS12_set_mac generates the MAC for |p12| with the designated |password|,
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// |salt|, |mac_iterations|, and |md| specified. |password| MUST be the same
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// password originally used to encrypt |p12|. Although OpenSSL will allow an
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// invalid state with a different |password|, AWS-LC will throw an error and
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// return 0.
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//
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// If |salt| is NULL, a random salt of |salt_len| bytes is generated. If
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// |salt_len| is zero, a default salt length is used instead.
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// If |md| is NULL, the default is use SHA1 to align with OpenSSL.
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//
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// TODO (CryptoAlg-2897): Update the default |md| to SHA-256 to align with
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// OpenSSL 3.x.
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OPENSSL_EXPORT int PKCS12_set_mac(PKCS12 *p12, const char *password,
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int password_len, unsigned char *salt,
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int salt_len, int mac_iterations,
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const EVP_MD *md);
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// PKCS12_verify_mac returns one if |password| is a valid password for |p12|
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// and zero otherwise. Since |PKCS12_parse| doesn't take a length parameter,
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// it's not actually possible to use a non-NUL-terminated password to actually
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// get anything from a |PKCS12|. Thus |password| and |password_len| may be
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// |NULL| and zero, respectively, or else |password_len| may be -1 to indicate
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// that |password| is a NUL-terminated C string whose length is determined via
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// |strlen|, or else |password_len| must be non-negative,
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// |password[password_len]| must be zero, and no other NUL bytes may appear in
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// |password|. If the |password_len| checks fail, zero is returned
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// immediately.
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OPENSSL_EXPORT int PKCS12_verify_mac(const PKCS12 *p12, const char *password,
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int password_len);
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// PKCS12_DEFAULT_ITER is the default number of KDF iterations used when
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// creating a |PKCS12| object.
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#define PKCS12_DEFAULT_ITER 2048
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// PKCS12_create returns a newly-allocated |PKCS12| object containing |pkey|,
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// |cert|, and |chain|, encrypted with the specified password. |name|, if not
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// NULL, specifies a user-friendly name to encode with the key and
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// certificate. The key and certificates are encrypted with |key_nid| and
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// |cert_nid|, respectively, using |iterations| iterations in the
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// KDF. |mac_iterations| is the number of iterations when deriving the MAC
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// key. |key_type| must be zero. |pkey| and |cert| may be NULL to omit them.
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//
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// Each of |key_nid|, |cert_nid|, |iterations|, and |mac_iterations| may be zero
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// to use defaults, which are |NID_pbe_WithSHA1And3_Key_TripleDES_CBC|,
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// |NID_pbe_WithSHA1And40BitRC2_CBC|, |PKCS12_DEFAULT_ITER|, and one,
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// respectively.
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//
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// |key_nid| or |cert_nid| may also be -1 to disable encryption of the key or
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// certificate, respectively. This option is not recommended and is only
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// implemented for compatibility with external packages. Note the output still
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// requires a password for the MAC. Unencrypted keys in PKCS#12 are also not
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// widely supported and may not open in other implementations.
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//
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// If |cert| or |chain| have associated aliases (see |X509_alias_set1|), they
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// will be included in the output as friendlyName attributes (RFC 2985). It is
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// an error to specify both an alias on |cert| and a non-NULL |name|
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// parameter.
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OPENSSL_EXPORT PKCS12 *PKCS12_create(const char *password, const char *name,
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const EVP_PKEY *pkey, X509 *cert,
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const STACK_OF(X509) *chain, int key_nid,
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int cert_nid, int iterations,
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int mac_iterations, int key_type);
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// PKCS12_new returns a newly-allocated |PKCS12| object.
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OPENSSL_EXPORT PKCS12 *PKCS12_new(void);
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// PKCS12_free frees |p12| and its contents.
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OPENSSL_EXPORT void PKCS12_free(PKCS12 *p12);
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#if defined(__cplusplus)
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} // extern C
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extern "C++" {
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BSSL_NAMESPACE_BEGIN
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BORINGSSL_MAKE_DELETER(PKCS12, PKCS12_free)
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BORINGSSL_MAKE_DELETER(PKCS8_PRIV_KEY_INFO, PKCS8_PRIV_KEY_INFO_free)
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BSSL_NAMESPACE_END
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} // extern C++
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#endif
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#define PKCS8_R_BAD_PKCS12_DATA 100
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#define PKCS8_R_BAD_PKCS12_VERSION 101
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#define PKCS8_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER 102
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#define PKCS8_R_CRYPT_ERROR 103
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#define PKCS8_R_DECODE_ERROR 104
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#define PKCS8_R_ENCODE_ERROR 105
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#define PKCS8_R_ENCRYPT_ERROR 106
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#define PKCS8_R_ERROR_SETTING_CIPHER_PARAMS 107
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#define PKCS8_R_INCORRECT_PASSWORD 108
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#define PKCS8_R_KEYGEN_FAILURE 109
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#define PKCS8_R_KEY_GEN_ERROR 110
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#define PKCS8_R_METHOD_NOT_SUPPORTED 111
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#define PKCS8_R_MISSING_MAC 112
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#define PKCS8_R_MULTIPLE_PRIVATE_KEYS_IN_PKCS12 113
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#define PKCS8_R_PKCS12_PUBLIC_KEY_INTEGRITY_NOT_SUPPORTED 114
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#define PKCS8_R_PKCS12_TOO_DEEPLY_NESTED 115
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#define PKCS8_R_PRIVATE_KEY_DECODE_ERROR 116
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#define PKCS8_R_PRIVATE_KEY_ENCODE_ERROR 117
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#define PKCS8_R_TOO_LONG 118
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#define PKCS8_R_UNKNOWN_ALGORITHM 119
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#define PKCS8_R_UNKNOWN_CIPHER 120
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#define PKCS8_R_UNKNOWN_CIPHER_ALGORITHM 121
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#define PKCS8_R_UNKNOWN_DIGEST 122
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#define PKCS8_R_UNKNOWN_HASH 123
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#define PKCS8_R_UNSUPPORTED_PRIVATE_KEY_ALGORITHM 124
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#define PKCS8_R_UNSUPPORTED_KEYLENGTH 125
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#define PKCS8_R_UNSUPPORTED_SALT_TYPE 126
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#define PKCS8_R_UNSUPPORTED_CIPHER 127
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#define PKCS8_R_UNSUPPORTED_KEY_DERIVATION_FUNCTION 128
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#define PKCS8_R_BAD_ITERATION_COUNT 129
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#define PKCS8_R_UNSUPPORTED_PRF 130
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#define PKCS8_R_INVALID_CHARACTERS 131
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#define PKCS8_R_UNSUPPORTED_OPTIONS 132
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#define PKCS8_R_AMBIGUOUS_FRIENDLY_NAME 133
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// PKCS12_R_MAC_VERIFY_FAILURE is an error code defined for
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// compatability. It points to our equivalent for this OpenSSL error,
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// |PKCS8_R_INCORRECT_PASSWORD|
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#define PKCS12_R_MAC_VERIFY_FAILURE PKCS8_R_INCORRECT_PASSWORD
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#endif // OPENSSL_HEADER_PKCS8_H
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