PKCS7(1) OpenSSL PKCS7(1) NNAAMMEE openssl-pkcs7, pkcs7 - PKCS#7 utility SSYYNNOOPPSSIISS ooppeennssssll ppkkccss77 [--iinnffoorrmm PPEEMM||DDEERR] [--oouuttffoorrmm PPEEMM||DDEERR] [--iinn ffiilleennaammee] [--oouutt ffiilleennaammee] [--pprriinntt__cceerrttss] [--tteexxtt] [--nnoooouutt] [--eennggiinnee iidd] DDEESSCCRRIIPPTTIIOONN The ppkkccss77 command processes PKCS#7 files in DER or PEM format. CCOOMMMMAANNDD OOPPTTIIOONNSS --iinnffoorrmm DDEERR||PPEEMM This specifies the input format. DDEERR format is DER encoded PKCS#7 v1.5 structure.PPEEMM (the default) is a base64 encoded version of the DER form with header and footer lines. --oouuttffoorrmm DDEERR||PPEEMM This specifies the output format, the options have the same meaning as the --iinnffoorrmm option. --iinn ffiilleennaammee This specifies the input filename to read from or standard input if this option is not specified. --oouutt ffiilleennaammee specifies the output filename to write to or standard output by default. --pprriinntt__cceerrttss prints out any certificates or CRLs contained in the file. They are preceded by their subject and issuer names in one line format. --tteexxtt prints out certificates details in full rather than just subject and issuer names. --nnoooouutt don't output the encoded version of the PKCS#7 structure (or cer- tificates is --pprriinntt__cceerrttss is set). --eennggiinnee iidd specifying an engine (by its unique iidd string) will cause ppkkccss77 to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms. EEXXAAMMPPLLEESS Convert a PKCS#7 file from PEM to DER: openssl pkcs7 -in file.pem -outform DER -out file.der Output all certificates in a file: openssl pkcs7 -in file.pem -print_certs -out certs.pem NNOOTTEESS The PEM PKCS#7 format uses the header and footer lines: -----BEGIN PKCS7----- -----END PKCS7----- For compatibility with some CAs it will also accept: -----BEGIN CERTIFICATE----- -----END CERTIFICATE----- RREESSTTRRIICCTTIIOONNSS There is no option to print out all the fields of a PKCS#7 file. This PKCS#7 routines only understand PKCS#7 v 1.5 as specified in RFC2315 they cannot currently parse, for example, the new CMS as described in RFC2630. SSEEEE AALLSSOO _c_r_l_2_p_k_c_s_7(1) 1.0.2u 2019-12-20 PKCS7(1)