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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "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 .SH "SYNOPSIS" .IX 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, EVP_PKEY *x, const EVP_CIPHER *enc, \& char *kstr, int klen, \& pem_password_cb *cb, void *u); \& \& int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, \& char *kstr, int klen, \& pem_password_cb *cb, void *u); \& \& int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid, \& char *kstr, int klen, \& pem_password_cb *cb, void *u); \& \& int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid, \& char *kstr, int klen, \& pem_password_cb *cb, void *u); .Ve .SH "DESCRIPTION" .IX 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. .PP Other than the use of \s-1DER\s0 as opposed to \s-1PEM\s0 these functions are identical to the corresponding \fB\s-1PEM\s0\fR function as described in \fBPEM_read_PrivateKey\fR\|(3). .SH "NOTES" .IX Header "NOTES" These functions are currently the only way to store encrypted private keys using \s-1DER\s0 format. .PP 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 \fBBIO_s_mem\fR\|(3) for details. .PP These functions make no assumption regarding the pass phrase received from the password callback. It will simply be treated as a byte sequence. .SH "RETURN VALUES" .IX Header "RETURN VALUES" \&\fBd2i_PKCS8PrivateKey_bio()\fR and \fBd2i_PKCS8PrivateKey_fp()\fR return a valid \fB\s-1EVP_PKEY\s0\fR structure or \s-1NULL\s0 if an error occurred. .PP \&\fBi2d_PKCS8PrivateKey_bio()\fR, \fBi2d_PKCS8PrivateKey_fp()\fR, \fBi2d_PKCS8PrivateKey_nid_bio()\fR and \fBi2d_PKCS8PrivateKey_nid_fp()\fR return 1 on success or 0 on error. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBPEM_read_PrivateKey\fR\|(3), \&\fBpassphrase\-encoding\fR\|(7) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2002\-2018 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (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>.