aes 128 bit encryption

[cekca]

Hi, i need to integrate a TCP/IP protocol with aes 128 bit encryption. The communication must follow these 5 points:

1) Opening the connection TCP with server
2) Send initialization vector to the server
3) Data encryption (sending data to the server with encryption)
4) Data decryption (receiving data from the server encrypted)
5) Closing the connection TCP with the server

Anyone can help me?

[admin]

See this post, cypher negotiation is part of tls protocol, you don't have to set it explicitly: https://forum.logicmachine.net/showthrea...903#pid903

[cekca]

sorry but is not clear... how i can send the 'passphrase' to the server?

[admin]

Can you be more specific, do you have documentation on the communication protocol?