Private key parsing fails with zerossl header

[Menduist]

zerossl provides files like this:

-----BEGIN RSA PRIVATE KEY-----
[the private key]
-----END RSA PRIVATE KEY-----

But at parsing, we only support BEGIN PRIVATE KEY:

nim-chronos/chronos/streams/tlsstream.nim

Line 698 in 9df76c3

if item.name == "PRIVATE KEY":

[cheatfate]

This is not some parsing error, chronos do not have support for PKCS#1 PEM format.

[Menduist]

Weird, by just replacing with "PRIVATE KEY" in the key file it seemed to work

[cheatfate]

Its not that simple, when you put BEGIN PRIVATE KEY it means that binary representation could have RSA or EC-NIST private key inside. It is part of PKCS#8 standard and type of key is encoded in binary form. While BEGIN RSA PRIVATE KEY could/should have just simple binary encoded RSA private key.

[cheatfate]

Also there is such usage as BEGIN EC PRIVATE KEY...