simplify x509 extension decoding
simplify x509 extension decoding

Hasimir/cryptography,kimvais/cryptography,kimvais/cryptography,Ayrx/cryptography,Ayrx/cryptography,Hasimir/cryptography,Hasimir/cryptography,Hasimir/cryptography,kimvais/cryptography,kimvais/cryptography,Ayrx/cryptography,Ayrx/cryptography