/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is PRIVATE to SSL. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef __tls13psk_h_ #define __tls13psk_h_
/* * Internally, we have track sslPsk pointers in three locations: * 1) An external PSK can be configured to the socket, in which case ss->psk will hold an owned reference. * For now, this only holds one external PSK. The value will persist across handshake restarts. * 2) When a handshake begins, the ss->psk value is deep-copied into ss->ssl3.hs.psks, which may also hold * a resumption PSK. This is essentially a priority-sorted list (where a resumption PSK has higher * priority than external), and we currently only send one PskIdentity and binder. * 3) During negotiation, ss->xtnData.selectedPsk will either be NULL or it will hold a non-owning refernce * to the PSK that has been (or is being) negotiated.
*/
/* Note: When holding a resumption PSK: * 1. |hash| comes from the original connection. * 2. |label| is ignored: The identity sent in the pre_shared_key_xtn * comes from ss->sec.ci.sid->u.ssl3.locked.sessionTicket.
*/ struct sslPskStr {
PRCList link;
PK11SymKey *key; /* A raw PSK. */
PK11SymKey *binderKey; /* The binder key derived from |key|. |key| is NULL after derivation. */
SSLPskType type; /* none, resumption, or external. */
SECItem label; /* Label (identity) for an external PSK. */
SSLHashType hash; /* A hash algorithm associated with a PSK. */
ssl3CipherSuite zeroRttSuite; /* For EPSKs, an explicitly-configured ciphersuite for 0-Rtt. */
PRUint32 maxEarlyData; /* For EPSKs, a limit on early data. Must be > 0 for 0-Rtt. */
};
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