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Title "D2I_PKCS8PRIVATEKEY_BIO 3ossl"
D2I_PKCS8PRIVATEKEY_BIO 3ossl "2023-09-19" "3.0.11" "OpenSSL"
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"NAME"
d2i_PKCS8PrivateKey_bio, d2i_PKCS8PrivateKey_fp, i2d_PKCS8PrivateKey_bio, i2d_PKCS8PrivateKey_fp, i2d_PKCS8PrivateKey_nid_bio, i2d_PKCS8PrivateKey_nid_fp - PKCS#8 format private key functions
"SYNOPSIS"
Header "SYNOPSIS" .Vb 1 #include <openssl/evp.h> \& EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u); EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u); \& int i2d_PKCS8PrivateKey_bio(BIO *bp, const EVP_PKEY *x, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u); \& int i2d_PKCS8PrivateKey_fp(FILE *fp, const EVP_PKEY *x, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u); \& int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, const EVP_PKEY *x, int nid, char *kstr, int klen, pem_password_cb *cb, void *u); \& int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, const EVP_PKEY *x, int nid, char *kstr, int klen, pem_password_cb *cb, void *u); .Ve
"DESCRIPTION"
Header "DESCRIPTION" The PKCS#8 functions encode and decode private keys in PKCS#8 format using both PKCS#5 v1.5 and PKCS#5 v2.0 password based encryption algorithms.

Other than the use of \s-1DER\s0 as opposed to \s-1PEM\s0 these functions are identical to the corresponding \s-1PEM\s0 function as described in PEM_read_PrivateKey\|(3).

"NOTES"
Header "NOTES" These functions are currently the only way to store encrypted private keys using \s-1DER\s0 format.

Currently all the functions use BIOs or \s-1FILE\s0 pointers, there are no functions which work directly on memory: this can be readily worked around by converting the buffers to memory BIOs, see BIO_s_mem\|(3) for details.

These functions make no assumption regarding the pass phrase received from the password callback. It will simply be treated as a byte sequence.

"RETURN VALUES"
Header "RETURN VALUES" \fBd2i_PKCS8PrivateKey_bio() and d2i_PKCS8PrivateKey_fp() return a valid \s-1EVP_PKEY\s0 structure or \s-1NULL\s0 if an error occurred.

\fBi2d_PKCS8PrivateKey_bio(), i2d_PKCS8PrivateKey_fp(), i2d_PKCS8PrivateKey_nid_bio() and i2d_PKCS8PrivateKey_nid_fp() return 1 on success or 0 on error.

"SEE ALSO"
Header "SEE ALSO" \fBPEM_read_PrivateKey\|(3), \fBpassphrase-encoding\|(7)
"COPYRIGHT"
Header "COPYRIGHT" Copyright 2002-2018 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>.