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.\" ========================================================================
.\"
.IX Title "PKCS8_ENCRYPT 3ossl"
.TH PKCS8_ENCRYPT 3ossl "2024-09-03" "3.1.7+quic" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.nh
.SH "NAME"
PKCS8_decrypt, PKCS8_decrypt_ex, PKCS8_encrypt, PKCS8_encrypt_ex,
PKCS8_set0_pbe, PKCS8_set0_pbe_ex \- PKCS8 encrypt/decrypt functions
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/x509.h>
\&
\& PKCS8_PRIV_KEY_INFO *PKCS8_decrypt(const X509_SIG *p8, const char *pass,
\&                                    int passlen);
\& PKCS8_PRIV_KEY_INFO *PKCS8_decrypt_ex(const X509_SIG *p8, const char *pass,
\&                                       int passlen, OSSL_LIB_CTX *ctx,
\&                                       const char *propq);
\& X509_SIG *PKCS8_encrypt(int pbe_nid, const EVP_CIPHER *cipher,
\&                         const char *pass, int passlen, unsigned char *salt,
\&                         int saltlen, int iter, PKCS8_PRIV_KEY_INFO *p8);
\& X509_SIG *PKCS8_encrypt_ex(int pbe_nid, const EVP_CIPHER *cipher,
\&                            const char *pass, int passlen, unsigned char *salt,
\&                            int saltlen, int iter, PKCS8_PRIV_KEY_INFO *p8,
\&                            OSSL_LIB_CTX *ctx, const char *propq);
\& X509_SIG *PKCS8_set0_pbe(const char *pass, int passlen,
\&                         PKCS8_PRIV_KEY_INFO *p8inf, X509_ALGOR *pbe);
\& X509_SIG *PKCS8_set0_pbe_ex(const char *pass, int passlen,
\&                             PKCS8_PRIV_KEY_INFO *p8inf, X509_ALGOR *pbe,
\&                             OSSL_LIB_CTX *ctx);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
\&\fBPKCS8_encrypt()\fR and \fBPKCS8_encrypt_ex()\fR perform encryption of an object \fIp8\fR using
the password \fIpass\fR of length \fIpasslen\fR, salt \fIsalt\fR of length \fIsaltlen\fR
and iteration count \fIiter\fR.
The resulting \fBX509_SIG\fR contains the encoded algorithm parameters and encrypted
key.
.PP
\&\fBPKCS8_decrypt()\fR and \fBPKCS8_decrypt_ex()\fR perform decryption of an \fBX509_SIG\fR in
\&\fIp8\fR using the password \fIpass\fR of length \fIpasslen\fR along with algorithm
parameters obtained from the \fIp8\fR.
.PP
\&\fBPKCS8_set0_pbe()\fR and \fBPKCS8_set0_pbe_ex()\fR perform encryption of the \fIp8inf\fR
using the password \fIpass\fR of length \fIpasslen\fR and parameters \fIpbe\fR.
.PP
Functions ending in \fB_ex()\fR allow for a library context \fIctx\fR and property query
\&\fIpropq\fR to be used to select algorithm implementations.
.SH "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBPKCS8_encrypt()\fR, \fBPKCS8_encrypt_ex()\fR, \fBPKCS8_set0_pbe()\fR and \fBPKCS8_set0_pbe_ex()\fR
return an encrypted key in a \fBX509_SIG\fR structure or \s-1NULL\s0 if an error occurs.
.PP
\&\fBPKCS8_decrypt()\fR and \fBPKCS8_decrypt_ex()\fR return a \fB\s-1PKCS8_PRIV_KEY_INFO\s0\fR or \s-1NULL\s0
if an error occurs.
.SH "CONFORMING TO"
.IX Header "CONFORMING TO"
\&\s-1IETF RFC 7292\s0 (<https://tools.ietf.org/html/rfc7292>)
.SH "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBcrypto\fR\|(7)
.SH "HISTORY"
.IX Header "HISTORY"
\&\fBPKCS8_decrypt_ex()\fR, \fBPKCS8_encrypt_ex()\fR and \fBPKCS8_set0_pbe_ex()\fR were added in
OpenSSL 3.0.
.SH "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
.PP
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>.