. NET, for security reasons, the RSACryptoServiceProvider class, which only has both a public and private key to decrypt. The reason is that the public key is public and will be held by multiple people. Such data transmission is not secure. C#rsa
Format
Name
Description
PKCS #7
Cryptographic Message Syntax Standard
A PKCS #7 file can be used to store certificates, which is a signeddata structure without data (just). The file name extension is usually. p7b,. p7c
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
1. Der-encoded key pair
Let's talk about DER encoding because JCE supports DER encoding key pair parsing. For details, see pkcs8encodedkeyspec and x509encodedkeyspec.
DER encoding is a subset of the ASN.1 encoding rules. We do not know how to
The original moved, even from here to turn the bar:
ZZ from:http://blog.csdn.net/lazyclough/article/details/7646696
command to generate OpenSSL RSA key:
OpenSSL genrsa-out Private.key 1024OpenSSL rsa-in private.key-pubout-out public.key BIO * key =
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
[Android] how to get pem format public key from modulus and exponent, pemexponent
To do this, we need to download 2 jar, which list below:
Bouncycastle. openssl + commons-codec-1.10
If you want to compile the app from android source code, you will
to does this, we need to download 2 jar, which list below:Bouncycastle.openssl + commons-codec-1.10If you want to compile the app from Android source code, you'll need to write your own "android.mk"Packagecom. Example. Getpubkey;Import Java. IO.
NET uses the pem key file generated by OpenSSL. There is very little information on the Internet (http://www.faqs.org/rfcs/rfc1421.html,rfc1421 ). The only information is wrong, so today I did my work, after reading the 610 bytes of the PEM key file
: This article mainly introduces the opensslrsa key format and solves the key format issues for php and c ++ collaborative development. For more information about PHP tutorials, see. OpenSSL programming-RSA programming
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