[TLS parser]Help seeking idea to write TLS parser in basic way

[Sadik Sikder <sadiksikder () gmail com>]

hello Sir
Good morning!
i have a own netanalyzer [developed libpcap on linux c/c++]that  works like
kind of wireshark. the net analyzer developed by other team up to tcp
 parser and i need to write tls parser which parse following field values
 i have developed a TLS decryption system taking field values from analyzer
like client random, server random etc. these are static. for totally
automation /dynamic i need write a tls parser code for triggering automatic
those field value fetching into my decryption tool.
currently i am seeking information or idea how should i start to write TLS
parser. i have no idea before that. a basic page example link or
explanation would be great help.
====================================================================

need to Parse the following SSL fields first to see field name and values
on command line and Hex data as stream and pass following selected values
to the decryption as String :

Handshake Protocol: Client Hello

Content type: Handshake

Version:

Random: ( pasre value as HEX stream and pass it to the decryption routine
as String.)

Cipher Suites and lists


Handshake Protocol:Server Hello

Content type: Handshake

Version:

Random: ( pasre value as HEX stream and pass it to the decryption routineas
String .)

Cipher Suites and lists

Handshake Protocol:Certificate

Content type: Handshake

Version:

Handshake Protocol:Server Key exchange

EC Diffie-Hellman Server Params

Pubkey:
signature

Handshake Protocol: Encrypted Handshake message

Content type: Handshake

parse last encrypted handshake message as HEX stream and pass it to the
decryption routine as String.


Handshake Protocol: Application Data Protocol

Content type:

Version:

Encrypted Application data client and server side( parse value as HEX
stream and pass it to the decryption routine as String.)
====================================================================

Thanks in advance.


*Kind Regards,*

Samsuddin Sikder
Masters Student
M.Sc. in Communication Systems Engineering
Cologne University of Applied Sciences (FH-Köln),Germany

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