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using System;
namespace Org.BouncyCastle.Tls
{
public abstract class ExtensionType
{
/*
* RFC 2546 2.3.
*/
public const int server_name = 0;
public const int max_fragment_length = 1;
public const int client_certificate_url = 2;
public const int trusted_ca_keys = 3;
public const int truncated_hmac = 4;
public const int status_request = 5;
/*
* RFC 4681
*/
public const int user_mapping = 6;
/*
* RFC 5878
*/
public const int client_authz = 7;
public const int server_authz = 8;
/*
* RFC 6091
*/
public const int cert_type = 9;
/*
* RFC 7919 (originally 'elliptic_curves' from RFC 4492)
*/
public const int supported_groups = 10;
/*
* RFC 4492 5.1.
*/
public const int ec_point_formats = 11;
/*
* RFC 5054 2.8.1.
*/
public const int srp = 12;
/*
* RFC 5246 7.4.1.4.
*/
public const int signature_algorithms = 13;
/*
* RFC 5764 9.
*/
public const int use_srtp = 14;
/*
* RFC 6520 6.
*/
public const int heartbeat = 15;
/*
* RFC 7301
*/
public const int application_layer_protocol_negotiation = 16;
/*
* RFC 6961
*/
public const int status_request_v2 = 17;
/*
* RFC 6962
*/
public const int signed_certificate_timestamp = 18;
/*
* RFC 7250
*/
public const int client_certificate_type = 19;
public const int server_certificate_type = 20;
/*
* RFC 7685
*/
public const int padding = 21;
/*
* RFC 7366
*/
public const int encrypt_then_mac = 22;
/*
* RFC 7627
*/
public const int extended_master_secret = 23;
/*
* RFC 8472
*/
public const int token_binding = 24;
/*
* RFC 7924
*/
public const int cached_info = 25;
/*
* RFC 8879
*/
public const int compress_certificate = 27;
/*
* RFC 8449
*/
public const int record_size_limit = 28;
/*
* RFC 5077 7.
*/
public const int session_ticket = 35;
/*
* RFC 8446
*/
public const int pre_shared_key = 41;
public const int early_data = 42;
public const int supported_versions = 43;
public const int cookie = 44;
public const int psk_key_exchange_modes = 45;
public const int certificate_authorities = 47;
public const int oid_filters = 48;
public const int post_handshake_auth = 49;
public const int signature_algorithms_cert = 50;
public const int key_share = 51;
/*
* RFC 5746 3.2.
*/
public const int renegotiation_info = 0xff01;
public static string GetName(int extensionType)
{
switch (extensionType)
{
case server_name:
return "server_name";
case max_fragment_length:
return "max_fragment_length";
case client_certificate_url:
return "client_certificate_url";
case trusted_ca_keys:
return "trusted_ca_keys";
case truncated_hmac:
return "truncated_hmac";
case status_request:
return "status_request";
case user_mapping:
return "user_mapping";
case client_authz:
return "client_authz";
case server_authz:
return "server_authz";
case cert_type:
return "cert_type";
case supported_groups:
return "supported_groups";
case ec_point_formats:
return "ec_point_formats";
case srp:
return "srp";
case signature_algorithms:
return "signature_algorithms";
case use_srtp:
return "use_srtp";
case heartbeat:
return "heartbeat";
case application_layer_protocol_negotiation:
return "application_layer_protocol_negotiation";
case status_request_v2:
return "status_request_v2";
case signed_certificate_timestamp:
return "signed_certificate_timestamp";
case client_certificate_type:
return "client_certificate_type";
case server_certificate_type:
return "server_certificate_type";
case padding:
return "padding";
case encrypt_then_mac:
return "encrypt_then_mac";
case extended_master_secret:
return "extended_master_secret";
case token_binding:
return "token_binding";
case cached_info:
return "cached_info";
case compress_certificate:
return "compress_certificate";
case record_size_limit:
return "record_size_limit";
case session_ticket:
return "session_ticket";
case pre_shared_key:
return "pre_shared_key";
case early_data:
return "early_data";
case supported_versions:
return "supported_versions";
case cookie:
return "cookie";
case psk_key_exchange_modes:
return "psk_key_exchange_modes";
case certificate_authorities:
return "certificate_authorities";
case oid_filters:
return "oid_filters";
case post_handshake_auth:
return "post_handshake_auth";
case signature_algorithms_cert:
return "signature_algorithms_cert";
case key_share:
return "key_share";
case renegotiation_info:
return "renegotiation_info";
default:
return "UNKNOWN";
}
}
public static string GetText(int extensionType)
{
return GetName(extensionType) + "(" + extensionType + ")";
}
public static bool IsRecognized(int extensionType)
{
switch (extensionType)
{
case server_name:
case max_fragment_length:
case client_certificate_url:
case trusted_ca_keys:
case truncated_hmac:
case status_request:
case user_mapping:
case client_authz:
case server_authz:
case cert_type:
case supported_groups:
case ec_point_formats:
case srp:
case signature_algorithms:
case use_srtp:
case heartbeat:
case application_layer_protocol_negotiation:
case status_request_v2:
case signed_certificate_timestamp:
case client_certificate_type:
case server_certificate_type:
case padding:
case encrypt_then_mac:
case extended_master_secret:
case token_binding:
case cached_info:
case compress_certificate:
case record_size_limit:
case session_ticket:
case pre_shared_key:
case early_data:
case supported_versions:
case cookie:
case psk_key_exchange_modes:
case certificate_authorities:
case oid_filters:
case post_handshake_auth:
case signature_algorithms_cert:
case key_share:
case renegotiation_info:
return true;
default:
return false;
}
}
}
}
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