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Title "B2I_PVK_BIO_EX 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
b2i_PVK_bio, b2i_PVK_bio_ex, i2b_PVK_bio, i2b_PVK_bio_ex - Decode and encode functions for reading and writing MSBLOB format private keys Header "SYNOPSIS" .Vb 1 #include <openssl/pem.h> \& EVP_PKEY *b2i_PVK_bio(BIO *in, pem_password_cb *cb, void *u); EVP_PKEY *b2i_PVK_bio_ex(BIO *in, pem_password_cb *cb, void *u, OSSL_LIB_CTX *libctx, const char *propq); int i2b_PVK_bio(BIO *out, const EVP_PKEY *pk, int enclevel, pem_password_cb *cb, void *u); int i2b_PVK_bio_ex(BIO *out, const EVP_PKEY *pk, int enclevel, pem_password_cb *cb, void *u, OSSL_LIB_CTX *libctx, const char *propq); .Ve Header "DESCRIPTION" \fBb2i_PVK_bio_ex() decodes a private key of \s-1MSBLOB\s0 format read from a \s-1BIO\s0. It attempts to automatically determine the key type. If the key is encrypted then \fIcb is called with the user data u in order to obtain a password to decrypt the key. The supplied library context libctx and property query string propq are used in any decrypt operation.

\fBb2i_PVK_bio() does the same as b2i_PVK_bio_ex() except that the default library context and property query string are used.

\fBi2b_PVK_bio_ex() encodes pk using \s-1MSBLOB\s0 format. If enclevel is 1 then a password obtained via pem_password_cb is used to encrypt the private key. If enclevel is 0 then no encryption is applied. The user data in u is passed to the password callback. The supplied library context libctx and property query string propq are used in any decrypt operation.

\fBi2b_PVK_bio() does the same as i2b_PVK_bio_ex() except that the default library context and property query string are used.

Header "RETURN VALUES" The b2i_PVK_bio() and b2i_PVK_bio_ex() functions return a valid \s-1EVP_KEY\s0 structure or \s-1NULL\s0 if an error occurs. The error code can be obtained by calling \fBERR_get_error\|(3).

\fBi2b_PVK_bio() and i2b_PVK_bio_ex() return the number of bytes successfully encoded or a negative value if an error occurs. The error code can be obtained by calling ERR_get_error\|(3).

Header "SEE ALSO" \fBcrypto\|(7), \fBd2i_PKCS8PrivateKey_bio\|(3) Header "HISTORY" \fBb2i_PVK_bio_ex() and i2b_PVK_bio_ex() were added in OpenSSL 3.0. Header "COPYRIGHT" Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.