Extract public key from certificate x509

Question

2

halloulaguesmi September 13, 2022 0 Comments

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

score 2 · Answer 1 · 2022-09-14T03:32:33+00:00

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

Thanks halloulaguesmi. This seems to be working perfectly.

score 2 · Answer 2 · 2022-09-13T04:31:18+00:00

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

Demo can be found here