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131 .IX Title "d2i_PKCS8PrivateKey 3"
132 .TH d2i_PKCS8PrivateKey 3 "2017-12-07" "1.0.2n" "OpenSSL"
133 .\" For nroff, turn off justification. Always turn off hyphenation; it makes
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138 d2i_PKCS8PrivateKey_bio, d2i_PKCS8PrivateKey_fp,
139 i2d_PKCS8PrivateKey_bio, i2d_PKCS8PrivateKey_fp,
140 i2d_PKCS8PrivateKey_nid_bio, i2d_PKCS8PrivateKey_nid_fp \- PKCS#8 format private key functions
142 .IX Header "SYNOPSIS"
144 \& #include <openssl/evp.h>
146 \& EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u);
147 \& EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u);
149 \& int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
150 \& char *kstr, int klen,
151 \& pem_password_cb *cb, void *u);
153 \& int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
154 \& char *kstr, int klen,
155 \& pem_password_cb *cb, void *u);
157 \& int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
158 \& char *kstr, int klen,
159 \& pem_password_cb *cb, void *u);
161 \& int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
162 \& char *kstr, int klen,
163 \& pem_password_cb *cb, void *u);
166 .IX Header "DESCRIPTION"
167 The PKCS#8 functions encode and decode private keys in PKCS#8 format using both
168 PKCS#5 v1.5 and PKCS#5 v2.0 password based encryption algorithms.
170 Other than the use of \s-1DER\s0 as opposed to \s-1PEM\s0 these functions are identical to the
171 corresponding \fB\s-1PEM\s0\fR function as described in the \fIpem\fR\|(3) manual page.
174 Before using these functions \fIOpenSSL_add_all_algorithms\fR\|(3)
175 should be called to initialize the internal algorithm lookup tables otherwise errors about
176 unknown algorithms will occur if an attempt is made to decrypt a private key.
178 These functions are currently the only way to store encrypted private keys using \s-1DER\s0 format.
180 Currently all the functions use BIOs or \s-1FILE\s0 pointers, there are no functions which
181 work directly on memory: this can be readily worked around by converting the buffers
182 to memory BIOs, see \fIBIO_s_mem\fR\|(3) for details.
184 .IX Header "SEE ALSO"