1.\" $OpenBSD: PKEY_USAGE_PERIOD_new.3,v 1.5 2019/06/06 01:06:59 schwarze Exp $ 2.\" 3.\" Copyright (c) 2016 Ingo Schwarze <schwarze@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: June 6 2019 $ 18.Dt PKEY_USAGE_PERIOD_NEW 3 19.Os 20.Sh NAME 21.Nm PKEY_USAGE_PERIOD_new , 22.Nm PKEY_USAGE_PERIOD_free 23.Nd X.509 certificate private key usage period extension 24.Sh SYNOPSIS 25.In openssl/x509v3.h 26.Ft PKEY_USAGE_PERIOD * 27.Fn PKEY_USAGE_PERIOD_new void 28.Ft void 29.Fn PKEY_USAGE_PERIOD_free "PKEY_USAGE_PERIOD *period" 30.Sh DESCRIPTION 31.Fn PKEY_USAGE_PERIOD_new 32allocates and initializes an empty 33.Vt PKEY_USAGE_PERIOD 34object, representing an ASN.1 35.Vt PrivateKeyUsagePeriod 36structure defined in RFC 3280 section 4.2.1.4. 37It could be used in 38.Vt X509 39certificates to specify a validity period for the private key 40that differed from the validity period of the certificate. 41.Pp 42.Fn PKEY_USAGE_PERIOD_free 43frees 44.Fa period . 45.Sh RETURN VALUES 46.Fn PKEY_USAGE_PERIOD_new 47returns the new 48.Vt PKEY_USAGE_PERIOD 49object or 50.Dv NULL 51if an error occurs. 52.Sh SEE ALSO 53.Xr d2i_PKEY_USAGE_PERIOD 3 , 54.Xr EXTENDED_KEY_USAGE_new 3 , 55.Xr X509_CINF_new 3 , 56.Xr X509_EXTENSION_new 3 , 57.Xr X509_new 3 58.Sh STANDARDS 59RFC 3280: Internet X.509 Public Key Infrastructure Certificate and 60Certificate Revocation List (CRL) Profile, 61section 4.2.1.4: Private Key Usage Period 62.Pp 63RFC 3280 was obsoleted by RFC 5280, which says: "Section 4.2.1.4 64in RFC 3280, which specified the 65.Vt PrivateKeyUsagePeriod 66certificate extension but deprecated its use, was removed. 67Use of this ISO standard extension is neither deprecated 68nor recommended for use in the Internet PKI." 69.Sh HISTORY 70.Fn PKEY_USAGE_PERIOD_new 71and 72.Fn PKEY_USAGE_PERIOD_free 73first appeared in OpenSSL 0.9.2b and have been available since 74.Ox 2.6 . 75