Andrew Boyson / crypto

A simple library to support serving https.

Dependents:   oldheating gps motorhome heating

tls/tls-connection.h@6:819c17738dc2, 2019-09-01 (annotated)

Committer:
andrewboyson
Date:
Sun Sep 01 18:15:12 2019 +0000
Revision:
6:819c17738dc2
Parent:
5:ee5489ee1117
Child:
7:94ef5824c3c0
Making progress - now have decryption working.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
andrewboyson 6:819c17738dc2 1 #include <stdbool.h>
andrewboyson 6:819c17738dc2 2 #include <stdint.h>
andrewboyson 6:819c17738dc2 3
andrewboyson 5:ee5489ee1117 4 #include "sha256.h"
andrewboyson 5:ee5489ee1117 5
andrewboyson 5:ee5489ee1117 6 #define DO_WAIT_CLIENT_HELLO 0
andrewboyson 5:ee5489ee1117 7 #define DO_SEND_SERVER_HELLO 1
andrewboyson 5:ee5489ee1117 8 #define DO_WAIT_CLIENT_CHANGE 2
andrewboyson 5:ee5489ee1117 9 #define DO_WAIT_DECRYPT_MASTER_SECRET 3
andrewboyson 5:ee5489ee1117 10 #define DO_SEND_SERVER_CHANGE 4
andrewboyson 5:ee5489ee1117 11 #define DO_APPLICATION 5
andrewboyson 5:ee5489ee1117 12 #define DO_SEND_ALERT_ILLEGAL_PARAMETER 6
andrewboyson 5:ee5489ee1117 13 #define DO_SEND_ALERT_INTERNAL_ERROR 7
andrewboyson 5:ee5489ee1117 14
andrewboyson 6:819c17738dc2 15 #define TLS_RANDOM_SIZE 32
andrewboyson 6:819c17738dc2 16 #define TLS_VERIFY_SIZE 64
andrewboyson 6:819c17738dc2 17
andrewboyson 6:819c17738dc2 18 #define TLS_KEY_SIZE_MAC 20
andrewboyson 6:819c17738dc2 19 #define TLS_KEY_SIZE_WRITE 16
andrewboyson 6:819c17738dc2 20
andrewboyson 5:ee5489ee1117 21 struct TlsConnection
andrewboyson 5:ee5489ee1117 22 {
andrewboyson 5:ee5489ee1117 23 int id; //An id of zero means the record is empty
andrewboyson 5:ee5489ee1117 24 uint32_t lastUsed;
andrewboyson 5:ee5489ee1117 25 int toDo;
andrewboyson 5:ee5489ee1117 26 int session;
andrewboyson 5:ee5489ee1117 27 struct Sha256State handshakeHash;
andrewboyson 6:819c17738dc2 28 bool clientEncrypted;
andrewboyson 6:819c17738dc2 29 bool serverEncrypted;
andrewboyson 6:819c17738dc2 30 uint8_t clientRandom[TLS_RANDOM_SIZE];
andrewboyson 6:819c17738dc2 31 uint8_t serverRandom[TLS_RANDOM_SIZE];
andrewboyson 6:819c17738dc2 32 uint8_t clientVerify[TLS_VERIFY_SIZE];
andrewboyson 6:819c17738dc2 33
andrewboyson 6:819c17738dc2 34 uint8_t clientMacKey [TLS_KEY_SIZE_MAC ];
andrewboyson 6:819c17738dc2 35 uint8_t serverMacKey [TLS_KEY_SIZE_MAC ];
andrewboyson 6:819c17738dc2 36 uint8_t clientWriteKey[TLS_KEY_SIZE_WRITE ];
andrewboyson 6:819c17738dc2 37 uint8_t serverWriteKey[TLS_KEY_SIZE_WRITE ];
andrewboyson 5:ee5489ee1117 38 };
andrewboyson 5:ee5489ee1117 39
andrewboyson 5:ee5489ee1117 40 extern struct TlsConnection* TlsConnectionNew (int connectionId); //Never fails so never returns NULL
andrewboyson 5:ee5489ee1117 41 extern struct TlsConnection* TlsConnectionOrNull(int connectionId);
andrewboyson 5:ee5489ee1117 42 extern void TlsConnectionReset (int connectionId);