Hi, Quoting Andy about applink : "New code should rather abstain from using above mentioned subset of OpenSSL API (whatever using FILE*)". So using the bio* version instead, PEM_write_bio_SSL_SESSION( bio_st*, ssl_session_st*) PEM_read_bio_SSL_SESSION( bio_st*, ssl_session_st**, int (char*, int, int, void*) *, void* ) are declared and implemented using macros as you can see in include\openssl\pem.h, starting line 156 (or search for "PEM_read/PEM_write functions") You can use them as simply as (s_server.c, s_client.c ) : SSL_SESSION *sess = PEM_read_bio_SSL_SESSION( pBIO, NULL, 0, NULL ); PEM_write_bio_SSL_SESSION( pBIO, SSL_get_session( pSSL ) ); They finally call : PEM_ASN1_write_bio() PEM_ASN1_read_bio() about which more info can be found on http://www.umich.edu/~x509/ssleay/pem_io.html Hope this helps, Michel De : openssl-users [mailto:openssl-users-bounces at openssl.org] De la part de Shubham Chauhan Envoy? : vendredi 26 f?vrier 2016 12:51 ? : openssl-users at openssl.org Objet : [openssl-users] PEM_read and write SSL_SESSION If anyone is familiar with the PEM_read_SSL_SESSION and PEM_write_SSL_SESSION functions, please let me know about the arguments and the usage of these functions, in a bit detailed fashion. It'll be really helpful. Thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mta.openssl.org/pipermail/openssl-users/attachments/20160227/9b49accb/attachment.html>