mirror of https://github.com/openssl/openssl.git
72 lines
3.2 KiB
C
72 lines
3.2 KiB
C
/*
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* Copyright 2024-2025 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/e_os2.h>
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/*
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* An Address object is used to store a blob of data that is used by hash
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* functions. It stores information related to the type of operation, as well as
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* information related to tree addresses and heights.
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* SHAKE based algorithms use 32 bytes for this object, whereas SHA2 based
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* algorithms use a compressed format of 22 bytes. For this reason there are
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* different method tables to support the different formats.
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* FIPS 205 Section 4.2 describes the SHAKE related functions.
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* The compressed format is discussed in Section 11.2.
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*/
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#define SLH_ADRS_SIZE 32 /* size of the ADRS blob */
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#define SLH_ADRSC_SIZE 22 /* size of a compact ADRS blob */
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#define SLH_ADRS_SIZE_MAX SLH_ADRS_SIZE
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/* 7 Different types of addresses */
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#define SLH_ADRS_TYPE_WOTS_HASH 0
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#define SLH_ADRS_TYPE_WOTS_PK 1
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#define SLH_ADRS_TYPE_TREE 2
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#define SLH_ADRS_TYPE_FORS_TREE 3
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#define SLH_ADRS_TYPE_FORS_ROOTS 4
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#define SLH_ADRS_TYPE_WOTS_PRF 5
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#define SLH_ADRS_TYPE_FORS_PRF 6
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#define SLH_ADRS_DECLARE(a) uint8_t a[SLH_ADRS_SIZE_MAX]
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#define SLH_ADRS_FUNC_DECLARE(ctx, adrsf) \
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const SLH_ADRS_FUNC *adrsf = ctx->adrs_func
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#define SLH_ADRS_FN_DECLARE(adrsf, t) OSSL_SLH_ADRS_FUNC_##t *t = adrsf->t
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typedef void (OSSL_SLH_ADRS_FUNC_zero)(uint8_t *adrs);
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typedef void (OSSL_SLH_ADRS_FUNC_copy)(uint8_t *dst, const uint8_t *src);
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typedef void (OSSL_SLH_ADRS_FUNC_copy_keypair_address)(uint8_t *dst, const uint8_t *src);
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/*
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* Note that the tree address is actually 12 bytes in uncompressed format,
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* but we only use 8 bytes
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*/
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typedef void (OSSL_SLH_ADRS_FUNC_set_tree_address)(uint8_t *adrs, uint64_t in);
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typedef void (OSSL_SLH_ADRS_FUNC_set_layer_address)(uint8_t *adrs, uint32_t layer);
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typedef void (OSSL_SLH_ADRS_FUNC_set_type_and_clear)(uint8_t *adrs, uint32_t type);
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typedef void (OSSL_SLH_ADRS_FUNC_set_keypair_address)(uint8_t *adrs, uint32_t in);
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typedef void (OSSL_SLH_ADRS_FUNC_set_chain_address)(uint8_t *adrs, uint32_t in);
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typedef void (OSSL_SLH_ADRS_FUNC_set_tree_height)(uint8_t *adrs, uint32_t in);
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typedef void (OSSL_SLH_ADRS_FUNC_set_hash_address)(uint8_t *adrs, uint32_t in);
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typedef void (OSSL_SLH_ADRS_FUNC_set_tree_index)(uint8_t *adrs, uint32_t in);
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typedef struct slh_adrs_func_st {
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OSSL_SLH_ADRS_FUNC_set_layer_address *set_layer_address;
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OSSL_SLH_ADRS_FUNC_set_tree_address *set_tree_address;
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OSSL_SLH_ADRS_FUNC_set_type_and_clear *set_type_and_clear;
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OSSL_SLH_ADRS_FUNC_set_keypair_address *set_keypair_address;
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OSSL_SLH_ADRS_FUNC_copy_keypair_address *copy_keypair_address;
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OSSL_SLH_ADRS_FUNC_set_chain_address *set_chain_address;
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OSSL_SLH_ADRS_FUNC_set_tree_height *set_tree_height;
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OSSL_SLH_ADRS_FUNC_set_hash_address *set_hash_address;
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OSSL_SLH_ADRS_FUNC_set_tree_index *set_tree_index;
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OSSL_SLH_ADRS_FUNC_zero *zero;
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OSSL_SLH_ADRS_FUNC_copy *copy;
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} SLH_ADRS_FUNC;
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const SLH_ADRS_FUNC *ossl_slh_get_adrs_fn(int is_compressed);
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