Extract public key from certificate x509

问题

I am looking for a way to extract public key from certificate x509 (PEM format) in javascript like this one:

openssl x509 -in cert.cer -pubkey -noout > pub.txt

回答1:

You need something that can parse ASN.1 structure. You could use pkijs.

Demo can be found here

回答2:

var cert = forge.pki.certificateFromPem(pem); 
var pem = 
forge.pki.publicKeyToPem(cert.publicKey)

Thanks halloulaguesmi. This seems to be working perfectly.

来源：https://stackoverflow.com/questions/44675333/extract-public-key-from-certificate-x509