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Title "PEM_READ_CMS 3" For nroff, turn off justification. Always turn off hyphenation; it makes
way too many mistakes in technical documents.
DECLARE_PEM_rw, PEM_read_CMS, PEM_read_bio_CMS, PEM_write_CMS, PEM_write_bio_CMS, PEM_write_DHxparams, PEM_write_bio_DHxparams, PEM_read_ECPKParameters, PEM_read_bio_ECPKParameters, PEM_write_ECPKParameters, PEM_write_bio_ECPKParameters, PEM_read_ECPrivateKey, PEM_write_ECPrivateKey, PEM_write_bio_ECPrivateKey, PEM_read_EC_PUBKEY, PEM_read_bio_EC_PUBKEY, PEM_write_EC_PUBKEY, PEM_write_bio_EC_PUBKEY, PEM_read_NETSCAPE_CERT_SEQUENCE, PEM_read_bio_NETSCAPE_CERT_SEQUENCE, PEM_write_NETSCAPE_CERT_SEQUENCE, PEM_write_bio_NETSCAPE_CERT_SEQUENCE, PEM_read_PKCS8, PEM_read_bio_PKCS8, PEM_write_PKCS8, PEM_write_bio_PKCS8, PEM_write_PKCS8_PRIV_KEY_INFO, PEM_read_bio_PKCS8_PRIV_KEY_INFO, PEM_read_PKCS8_PRIV_KEY_INFO, PEM_write_bio_PKCS8_PRIV_KEY_INFO, PEM_read_SSL_SESSION, PEM_read_bio_SSL_SESSION, PEM_write_SSL_SESSION, PEM_write_bio_SSL_SESSION, PEM_read_X509_PUBKEY, PEM_read_bio_X509_PUBKEY, PEM_write_X509_PUBKEY, PEM_write_bio_X509_PUBKEY \- PEM object encoding routines Header "SYNOPSIS" .Vb 1 #include <openssl/pem.h> \& DECLARE_PEM_rw(name, TYPE) \& TYPE *PEM_read_TYPE(FILE *fp, TYPE **a, pem_password_cb *cb, void *u); TYPE *PEM_read_bio_TYPE(BIO *bp, TYPE **a, pem_password_cb *cb, void *u); int PEM_write_TYPE(FILE *fp, const TYPE *a); int PEM_write_bio_TYPE(BIO *bp, const TYPE *a); .Ve

The following functions have been deprecated since OpenSSL 3.0, and can be hidden entirely by defining \s-1OPENSSL_API_COMPAT\s0 with a suitable version value, see openssl_user_macros\|(7):

.Vb 1 #include <openssl/pem.h> \& int PEM_write_DHxparams(FILE *out, const DH *dh); int PEM_write_bio_DHxparams(BIO *out, const DH *dh); EC_GROUP *PEM_read_ECPKParameters(FILE *fp, EC_GROUP **x, pem_password_cb *cb, void *u); EC_GROUP *PEM_read_bio_ECPKParameters(BIO *bp, EC_GROUP **x, pem_password_cb *cb, void *u); int PEM_write_ECPKParameters(FILE *out, const EC_GROUP *x); int PEM_write_bio_ECPKParameters(BIO *out, const EC_GROUP *x), \& EC_KEY *PEM_read_EC_PUBKEY(FILE *fp, EC_KEY **x, pem_password_cb *cb, void *u); EC_KEY *PEM_read_bio_EC_PUBKEY(BIO *bp, EC_KEY **x, pem_password_cb *cb, void *u); int PEM_write_EC_PUBKEY(FILE *out, const EC_KEY *x); int PEM_write_bio_EC_PUBKEY(BIO *out, const EC_KEY *x); \& EC_KEY *PEM_read_ECPrivateKey(FILE *out, EC_KEY **x, pem_password_cb *cb, void *u); EC_KEY *PEM_read_bio_ECPrivateKey(BIO *out, EC_KEY **x, pem_password_cb *cb, void *u); int PEM_write_ECPrivateKey(FILE *out, const EC_KEY *x, const EVP_CIPHER *enc, const unsigned char *kstr, int klen, pem_password_cb *cb, void *u); int PEM_write_bio_ECPrivateKey(BIO *out, const EC_KEY *x, const EVP_CIPHER *enc, const unsigned char *kstr, int klen, pem_password_cb *cb, void *u); .Ve

Header "DESCRIPTION" All of the functions described on this page are deprecated. Applications should use OSSL_ENCODER_to_bio() and OSSL_DECODER_from_bio() instead.

In the description below, \f(BI\s-1TYPE\s0 is used as a placeholder for any of the OpenSSL datatypes, such as X509. The macro DECLARE_PEM_rw expands to the set of declarations shown in the next four lines of the synopsis.

These routines convert between local instances of \s-1ASN1\s0 datatypes and the \s-1PEM\s0 encoding. For more information on the templates, see \s-1ASN1_ITEM\s0\|(3). For more information on the lower-level routines used by the functions here, see PEM_read\|(3).

\fBPEM_read_\f(BI\s-1TYPE\s0() reads a PEM-encoded object of \f(BI\s-1TYPE\s0 from the file \fIfp and returns it. The cb and u parameters are as described in \fBpem_password_cb\|(3).

\fBPEM_read_bio_\f(BI\s-1TYPE\s0() is similar to PEM_read_\f(BI\s-1TYPE\s0() but reads from the \s-1BIO\s0 bp.

\fBPEM_write_\f(BI\s-1TYPE\s0() writes the \s-1PEM\s0 encoding of the object a to the file \fIfp.

\fBPEM_write_bio_\f(BI\s-1TYPE\s0() similarly writes to the \s-1BIO\s0 bp.

Header "NOTES" These functions make no assumption regarding the pass phrase received from the password callback. It will simply be treated as a byte sequence. Header "RETURN VALUES" \fBPEM_read_\f(BI\s-1TYPE\s0() and PEM_read_bio_\f(BI\s-1TYPE\s0() return a pointer to an allocated object, which should be released by calling \f(BI\s-1TYPE\s0_free(), or \s-1NULL\s0 on error.

\fBPEM_write_\f(BI\s-1TYPE\s0() and PEM_write_bio_\f(BI\s-1TYPE\s0() return 1 for success or 0 for failure.

Header "SEE ALSO" \fBPEM_read\|(3), \fBpassphrase-encoding\|(7) Header "HISTORY" The functions PEM_write_DHxparams(), PEM_write_bio_DHxparams(), \fBPEM_read_ECPKParameters(), PEM_read_bio_ECPKParameters(), \fBPEM_write_ECPKParameters(), PEM_write_bio_ECPKParameters(), \fBPEM_read_EC_PUBKEY(), PEM_read_bio_EC_PUBKEY(), \fBPEM_write_EC_PUBKEY(), PEM_write_bio_EC_PUBKEY(), \fBPEM_read_ECPrivateKey(), PEM_read_bio_ECPrivateKey(), \fBPEM_write_ECPrivateKey() and PEM_write_bio_ECPrivateKey() were deprecated in OpenSSL 3.0. Header "COPYRIGHT" Copyright 1998-2023 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>.