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view src/event/quic/ngx_event_quic_tokens.h @ 9132:77c1418916f7

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QUIC: use AEAD to encrypt address validation tokens. Previously used AES256-CBC is now substituted with AES256-GCM. Although there seem to be no tangible consequences of token integrity loss.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 08 Jun 2023 14:58:01 +0400
parents 3550b00d9dc8
children
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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_
#define _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


#define NGX_QUIC_MAX_TOKEN_SIZE              64
    /* SHA-1(addr)=20 + sizeof(time_t) + retry(1) + odcid.len(1) + odcid */

#define NGX_QUIC_AES_256_GCM_IV_LEN          12
#define NGX_QUIC_AES_256_GCM_TAG_LEN         16

#define NGX_QUIC_TOKEN_BUF_SIZE             (NGX_QUIC_AES_256_GCM_IV_LEN      \
                                             + NGX_QUIC_MAX_TOKEN_SIZE        \
                                             + NGX_QUIC_AES_256_GCM_TAG_LEN)


ngx_int_t ngx_quic_new_sr_token(ngx_connection_t *c, ngx_str_t *cid,
    u_char *secret, u_char *token);
ngx_int_t ngx_quic_new_token(ngx_log_t *log, struct sockaddr *sockaddr,
    socklen_t socklen, u_char *key, ngx_str_t *token, ngx_str_t *odcid,
    time_t expires, ngx_uint_t is_retry);
ngx_int_t ngx_quic_validate_token(ngx_connection_t *c,
    u_char *key, ngx_quic_header_t *pkt);

#endif /* _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_ */