RSA Public Key PEM File



What is this? A PEM file which contains your public key.  Public key will contain your Modulus and Exponent. (P and Q).  It is different from private key which contains alot more information.

-----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCxSxqCESCdpeXWCprQGMrpwlEg
91EF4Qt1R247gTGaUMgEjFEq9c/UffmtYyccmoIq3n8m/ZcsiCNJNFfGx5h/YEdR
ZyzQjSLg9zt3zu5JbBNx4zb63vvhpCGoMf65y/RvMs+XjSBl8ybl0vbbrC62YH1I
7ZJYSbKhXr3ILHyUSwIDAQAB
-----END PUBLIC KEY-----

OpenSSL

To generate a rsa key

openssl genrsa -out private.pem 1024

To view your private key

openssl pkey -in private.pem -text

To generate a public key (your private key already contain your public key)

openssl pkey -in private.pem -out public.pem -pubout

View our public key (noticed the additional -pubin argument)

openssl pkey -in public.pem -pubin -text





Comments

Post a Comment

Popular posts from this blog

The specified initialization vector (IV) does not match the block size for this algorithm

Image
If you're getting  exception when trying to assigned key to a symmetric key and getting error message below :- The specified initialization vector (IV) does not match the block size for this algorithm And your code probably look like something below :- Then you need to go into debug mode and start looking into the supported size for IV as shown in diagram below :- As you can see, IV is 16 bytes, so you need to provide 16 bytes. The same goes for Key field too, if you're adding anything to it. As long as you provide a valid key size, then we're good and you're code will be ready.
Read more