Certificate formats-X.509, der and PEMPart: 1 2 3Certificate standard and File encodings seem to be confusing. I wrote down some notes about:
What is X.509 certificate standard?
PEM (privacy enhanced mail) Encoding
Der
Those related to certificates (SSL,X.509,PEM,DER,CRT,CER,KEY,CSR,P12, etc.) [ZZ]Reprinted 2015-06-09 20:21:04From:http://www.cnblogs.com/guogangj/p/4118605.htmlThese concepts related to certificates are really tricky because they haven't been
Http://blog.chinaunix.net/uid-26575352-id-3073802.html
Common certificate formats and mutual conversionsThe PKCS full name is Public-key cryptography standards, a set of standards developed by RSA Labs and other security system developers to
Openssl_verify
What is the usage of openssl_verify?
I want to know what value his three parameters pass separately!
Reply to discussion (solution)
$pub _key_id No suspense is the public key! Two other parameters what do $data and $signature
1. First step using OpenSSL to convert Pem key to der key//e:\01doc\bin>openssl.exe rsa-in rsakeydec.pem-outform der-out pri.der2, call the following program directly read der converted to C # required XML key, and then ciphertext decryption3.
Using OpenSSL utilities
An OpenSSL command line takes the following form:
openssl utility arguments
For example:
openssl x509 -in OrbixCA -text
Each Command is individually described in this Appendix. To get a list of the arguments
Formats and differences of digital certificates
Certificates that exist as files are generally in the following formats:
1.Certificate with Private Key
It is defined by the public key cryptography standards #12 and PKCS #12 standards. It contains
HTTPS bidirectional authentication basic Configuration Learning
a certificate key format
1.1 DER Format
The public key, the certificate file Information format, usually the suffix name is DER,CER,CRT, and the content is binary data. 1.2 PEM
Different certificates are stored in different formats (such as whether the public key or private key is encrypted for storage, a single certificate, or multiple certificates), and are encoded differently (der/base64) different standards (such as
The concepts related to certificates are really tricky because they haven't been exposed to certificate encryption before, because there's a whole new term coming up that looks like something else in another field, not something that we're familiar
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