mirror of https://github.com/openssl/openssl.git
70 lines
2.5 KiB
Plaintext
70 lines
2.5 KiB
Plaintext
=pod
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=head1 NAME
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b2i_PVK_bio, b2i_PVK_bio_ex, i2b_PVK_bio, i2b_PVK_bio_ex - Decode and encode
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functions for reading and writing MSBLOB format private keys
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=head1 SYNOPSIS
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#include <openssl/pem.h>
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EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u);
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EVP_PKEY *b2i_PVK_bio_ex(BIO *in, pem_password_cb *cb, void *u,
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OSSL_LIB_CTX *libctx, const char *propq);
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int i2b_PVK_bio(BIO *out, const EVP_PKEY *pk, int enclevel,
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pem_password_cb *cb, void *u);
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int i2b_PVK_bio_ex(BIO *out, const EVP_PKEY *pk, int enclevel,
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pem_password_cb *cb, void *u,
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OSSL_LIB_CTX *libctx, const char *propq);
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=head1 DESCRIPTION
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b2i_PVK_bio_ex() decodes a private key of MSBLOB format read from a B<BIO>. It
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attempts to automatically determine the key type. If the key is encrypted then
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I<cb> is called with the user data I<u> in order to obtain a password to decrypt
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the key. The supplied library context I<libctx> and property query
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string I<propq> are used in any decrypt operation.
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b2i_PVK_bio() does the same as b2i_PVK_bio_ex() except that the default
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library context and property query string are used.
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i2b_PVK_bio_ex() encodes I<pk> using MSBLOB format. If I<enclevel> is 1 then
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a password obtained via I<pem_password_cb> is used to encrypt the private key.
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If I<enclevel> is 0 then no encryption is applied. The user data in I<u> is
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passed to the password callback. The supplied library context I<libctx> and
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property query string I<propq> are used in any decrypt operation.
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i2b_PVK_bio() does the same as i2b_PVK_bio_ex() except that the default
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library context and property query string are used.
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=head1 RETURN VALUES
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The b2i_PVK_bio() and b2i_PVK_bio_ex() functions return a valid B<EVP_KEY>
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structure or B<NULL> if an error occurs. The error code can be obtained by calling
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L<ERR_get_error(3)>.
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i2b_PVK_bio() and i2b_PVK_bio_ex() return the number of bytes successfully
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encoded or a negative value if an error occurs. The error code can be obtained
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by calling L<ERR_get_error(3)>.
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=head1 SEE ALSO
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L<crypto(7)>,
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L<d2i_PKCS8PrivateKey_bio(3)>
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=head1 HISTORY
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b2i_PVK_bio_ex() and i2b_PVK_bio_ex() were added in OpenSSL 3.0.
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=head1 COPYRIGHT
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Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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