ssl: Implement psk_key_exchange_modes extension

Implement encode/decode of psk_key_exchange_modes.

1 files changed, 24 insertions, 12 deletions

diff --git a/lib/ssl/src/tls_handshake_1_3.hrl b/lib/ssl/src/tls_handshake_1_3.hrl
index 7ae1b93e1c..78756c69db 100644
--- a/lib/ssl/src/tls_handshake_1_3.hrl
+++ b/lib/ssl/src/tls_handshake_1_3.hrl
@@ -74,29 +74,41 @@
           y                %     opaque Y[coordinate_length];
          }).
 
+%% RFC 8446 4.2.9.  Pre-Shared Key Exchange Modes
+
+%% enum { psk_ke(0), psk_dhe_ke(1), (255) } PskKeyExchangeMode;
 -define(PSK_KE, 0).
 -define(PSK_DHE_KE, 1).
 
--record(psk_keyexchange_modes, {
+-record(psk_key_exchange_modes, {
           ke_modes % ke_modes<1..255>
          }).
+
+%% RFC 8446 4.2.10.  Early Data Indication
 -record(empty, {
          }).
 -record(early_data_indication, {
           indication % uint32 max_early_data_size (new_session_ticket) | 
           %% #empty{} (client_hello, encrypted_extensions)
          }).
--record(psk_identity, {
-          identity, %     opaque identity<1..2^16-1>
-          obfuscated_ticket_age %  uint32
-         }).
--record(offered_psks, {
-          psk_identity,    %identities<7..2^16-1>;
-          psk_binder_entry %binders<33..2^16-1>,  opaque PskBinderEntry<32..255>
-         }).
--record(pre_shared_keyextension,{ 
-          extension %OfferedPsks (client_hello) | uint16 selected_identity (server_hello)
-         }).
+
+%% RFC 8446 4.2.11. Pre-Shared Key Extension
+-record(psk_identity,
+        {
+         identity,             % opaque identity<1..2^16-1>
+         obfuscated_ticket_age % uint32
+        }).
+
+-record(offered_psks,
+        {
+         identities,    % PskIdentity identities<7..2^16-1>;
+         binders        % PskBinderEntry binders<33..2^16-1>; opaque PskBinderEntry<32..255>
+        }).
+
+-record(pre_shared_key,
+        {
+         data          % OfferedPsks (client_hello) | uint16 selected_identity (server_hello)
+        }).
 
 %% RFC 8446 B.3.1.2.
 -record(cookie, {