Openssl PKCS7 Command

First, Introduction

The PKCS7 command is used to process pkcs#7 files in der or PEM format.

Second, the grammar

OpenSSL PKCS7 [-inform pem| DER] [-outform pem| DER] [- in filename] [-outfilename] [ID]

Options

-inform arg   input format--outform arg  output format-- in arg       file - Out arg      file -print_certs in  -text         -noout        Don'  t output encoded data -engine e use     engine E, possibly a hardware device.

Third, examples

1. Convert a pkcs#7 file from PEM format to der Format

OpenSSL PKCS7-infilefile. Der

2. Print pkcs#7 format CRL list

OpenSSL PKCS7- in Crlpkcs7.pem-print_certs

Iv. Expansion of knowledge

1) digital signature of PKCS7 attached and detached mode

http://www.mamicode.com/info-detail-966094.html

Reference: http://blog.csdn.net/as3luyuan123/article/details/16105407

Openssl PKCS7 Command