1.\" $OpenBSD: X509_ocspid_print.3,v 1.1 2021/08/06 21:45:55 schwarze Exp $ 2.\" 3.\" Copyright (c) 2021 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: August 6 2021 $ 18.Dt X509_OCSPID_PRINT 3 19.Os 20.Sh NAME 21.Nm X509_ocspid_print 22.Nd pretty-print hashes of subject name and public key 23.Sh SYNOPSIS 24.In openssl/x509.h 25.Ft int 26.Fo X509_ocspid_print 27.Fa "BIO *bio" 28.Fa "X509 *issuer" 29.Fc 30.Sh DESCRIPTION 31.Fn X509_ocspid_print 32produces human-readable output to 33.Fa bio 34containing hexadecimal representations of SHA-1 hashes of the 35DER-encoded forms of the subject name and the public key of the 36.Fa issuer 37certificate, as these hashes appear in OCSP requests. 38.Sh RETURN VALUES 39.Fn X509_ocspid_print 40returns 1 for success or 0 for failure. 41.Sh EXAMPLES 42This function is used by the 43.Fl ocspid 44flag of the 45.Xr openssl 1 46.Cm x509 47command. 48.Sh SEE ALSO 49.Xr EVP_sha1 3 , 50.Xr i2d_X509_NAME 3 , 51.Xr OCSP_cert_to_id 3 , 52.Xr OCSP_REQUEST_new 3 , 53.Xr X509_get_pubkey 3 , 54.Xr X509_get_subject_name 3 55.Sh HISTORY 56.Fn X509_ocspid_print 57first appeared in OpenSSL 0.9.7 and has been available since 58.Ox 3.2 . 59