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/* Copyright (c) 2001 Matej Pfajfar.
* Copyright (c) 2001-2004, Roger Dingledine.
* Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson.
* Copyright (c) 2007-2018, The Tor Project, Inc. */
/* See LICENSE for licensing information */
#ifndef RELAY_CRYPTO_ST_H
#define RELAY_CRYPTO_ST_H
struct relay_crypto_t {
/* crypto environments */
/** Encryption key and counter for cells heading towards the OR at this
* step. */
crypto_cipher_t *f_crypto;
/** Encryption key and counter for cells heading back from the OR at this
* step. */
crypto_cipher_t *b_crypto;
/** Digest state for cells heading towards the OR at this step. */
crypto_digest_t *f_digest; /* for integrity checking */
/** Digest state for cells heading away from the OR at this step. */
crypto_digest_t *b_digest;
};
#endif
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