| 1 | /*
|
|---|
| 2 | * Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
|
|---|
| 3 | *
|
|---|
| 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use
|
|---|
| 5 | * this file except in compliance with the License. You can obtain a copy
|
|---|
| 6 | * in the file LICENSE in the source distribution or at
|
|---|
| 7 | * https://www.openssl.org/source/license.html
|
|---|
| 8 | */
|
|---|
| 9 |
|
|---|
| 10 | /* This header can move into provider when legacy support is removed */
|
|---|
| 11 | #ifndef OSSL_INTERNAL_SHA3_H
|
|---|
| 12 | # define OSSL_INTERNAL_SHA3_H
|
|---|
| 13 | # ifndef RT_WITHOUT_PRAGMA_ONCE /* VBOX */
|
|---|
| 14 | # pragma once
|
|---|
| 15 | # endif /* VBOX */
|
|---|
| 16 |
|
|---|
| 17 | # include <openssl/e_os2.h>
|
|---|
| 18 | # include <stddef.h>
|
|---|
| 19 |
|
|---|
| 20 | # define KECCAK1600_WIDTH 1600
|
|---|
| 21 | # define SHA3_MDSIZE(bitlen) (bitlen / 8)
|
|---|
| 22 | # define KMAC_MDSIZE(bitlen) 2 * (bitlen / 8)
|
|---|
| 23 | # define SHA3_BLOCKSIZE(bitlen) (KECCAK1600_WIDTH - bitlen * 2) / 8
|
|---|
| 24 |
|
|---|
| 25 | typedef struct keccak_st KECCAK1600_CTX;
|
|---|
| 26 |
|
|---|
| 27 | typedef size_t (sha3_absorb_fn)(void *vctx, const void *in, size_t inlen);
|
|---|
| 28 | typedef int (sha3_final_fn)(void *vctx, unsigned char *out, size_t outlen);
|
|---|
| 29 | typedef int (sha3_squeeze_fn)(void *vctx, unsigned char *out, size_t outlen);
|
|---|
| 30 |
|
|---|
| 31 | typedef struct prov_sha3_meth_st
|
|---|
| 32 | {
|
|---|
| 33 | sha3_absorb_fn *absorb;
|
|---|
| 34 | sha3_final_fn *final;
|
|---|
| 35 | sha3_squeeze_fn *squeeze;
|
|---|
| 36 | } PROV_SHA3_METHOD;
|
|---|
| 37 |
|
|---|
| 38 | #define XOF_STATE_INIT 0
|
|---|
| 39 | #define XOF_STATE_ABSORB 1
|
|---|
| 40 | #define XOF_STATE_FINAL 2
|
|---|
| 41 | #define XOF_STATE_SQUEEZE 3
|
|---|
| 42 |
|
|---|
| 43 | struct keccak_st {
|
|---|
| 44 | uint64_t A[5][5];
|
|---|
| 45 | unsigned char buf[KECCAK1600_WIDTH / 8 - 32];
|
|---|
| 46 | size_t block_size; /* cached ctx->digest->block_size */
|
|---|
| 47 | size_t md_size; /* output length, variable in XOF */
|
|---|
| 48 | size_t bufsz; /* used bytes in below buffer */
|
|---|
| 49 | unsigned char pad;
|
|---|
| 50 | PROV_SHA3_METHOD meth;
|
|---|
| 51 | int xof_state;
|
|---|
| 52 | };
|
|---|
| 53 |
|
|---|
| 54 | void ossl_sha3_reset(KECCAK1600_CTX *ctx);
|
|---|
| 55 | int ossl_sha3_init(KECCAK1600_CTX *ctx, unsigned char pad, size_t bitlen);
|
|---|
| 56 | int ossl_keccak_kmac_init(KECCAK1600_CTX *ctx, unsigned char pad,
|
|---|
| 57 | size_t bitlen);
|
|---|
| 58 | int ossl_sha3_update(KECCAK1600_CTX *ctx, const void *_inp, size_t len);
|
|---|
| 59 | int ossl_sha3_final(KECCAK1600_CTX *ctx, unsigned char *out, size_t outlen);
|
|---|
| 60 | int ossl_sha3_squeeze(KECCAK1600_CTX *ctx, unsigned char *out, size_t outlen);
|
|---|
| 61 |
|
|---|
| 62 | size_t SHA3_absorb(uint64_t A[5][5], const unsigned char *inp, size_t len,
|
|---|
| 63 | size_t r);
|
|---|
| 64 |
|
|---|
| 65 | #endif /* OSSL_INTERNAL_SHA3_H */
|
|---|
