How to get a key (or normal PFX) from CryptoPro PFX?

Question

Cryptography

Tried:
- openssl pkcs12 -in key.pfx -nocerts -nodes -out key.pem
- https://habr.com/ru/post/440882/

In both cases, the error occurs due to the lack of algorithm "1.2.840.113549.1.12 .1.80".

Answer 1

No way. If a cipher was used when generating a certificate that is not supported by openssl, then how will openssl convert?
Well, or contact CryptoPro, support.