Does anyone know, or may point,hint me towards ressources where this is documented?

What I want is the information like:

```
PrivateKeyInfo ::= SEQUENCE {
  version         Version, (1byte)
  algorithm       AlgorithmIdentifier,(2byte)
  PrivateKey      OCTET STRING (xbyte)
}

AlgorithmIdentifier ::= SEQUENCE {
  algorithm       OBJECT IDENTIFIER, (1byte)
  parameters      ANY DEFINED BY algorithm OPTIONAL (ybyte)
}
// separators are encoded as 0

```

The cruzial part would really be the bytes and what the separators are, so I could parse it manually.

Actually I would be most happy to have just the information about all the formats.
Because the first concern now is the openssl key-format. Secondly the openssh key format appears to be totally different.