| /* |
| * Copyright 2019-2025 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <string.h> |
| #include <openssl/crypto.h> |
| #include <openssl/core_names.h> |
| #include <openssl/proverr.h> |
| #include <openssl/err.h> |
| #include "internal/cryptlib.h" |
| #include "prov/blake2.h" |
| #include "prov/digestcommon.h" |
| #include "prov/implementations.h" |
| #include "providers/implementations/digests/blake2_prov.inc" |
| |
| static OSSL_FUNC_digest_gettable_ctx_params_fn blake_gettable_ctx_params; |
| static OSSL_FUNC_digest_settable_ctx_params_fn blake_settable_ctx_params; |
| |
| static const OSSL_PARAM *blake_gettable_ctx_params(ossl_unused void *ctx, |
| ossl_unused void *pctx) |
| { |
| return blake_get_ctx_params_list; |
| } |
| |
| static const OSSL_PARAM *blake_settable_ctx_params(ossl_unused void *ctx, |
| ossl_unused void *pctx) |
| { |
| return blake_set_ctx_params_list; |
| } |
| |
| #define IMPLEMENT_BLAKE_functions(variant, VARIANT, variantsize) \ |
| int ossl_blake##variant##_get_ctx_params(void *vctx, OSSL_PARAM params[]) \ |
| { \ |
| struct blake##variant##_md_data_st *mdctx = vctx; \ |
| struct blake_get_ctx_params_st p; \ |
| \ |
| BLAKE##VARIANT##_CTX *ctx = &mdctx->ctx; \ |
| \ |
| if (ctx == NULL || !blake_get_ctx_params_decoder(params, &p)) \ |
| return 0; \ |
| \ |
| if (p.size != NULL \ |
| && !OSSL_PARAM_set_uint(p.size, (unsigned int)mdctx->params.digest_length)) { \ |
| ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER); \ |
| return 0; \ |
| } \ |
| \ |
| return 1; \ |
| } \ |
| \ |
| int ossl_blake##variant##_set_ctx_params(void *vctx, const OSSL_PARAM params[]) \ |
| { \ |
| unsigned int size; \ |
| struct blake##variant##_md_data_st *mdctx = vctx; \ |
| struct blake_set_ctx_params_st p; \ |
| \ |
| BLAKE##VARIANT##_CTX *ctx = &mdctx->ctx; \ |
| \ |
| if (ctx == NULL || !blake_set_ctx_params_decoder(params, &p)) \ |
| return 0; \ |
| \ |
| if (p.size != NULL) { \ |
| if (!OSSL_PARAM_get_uint(p.size, &size)) { \ |
| ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER); \ |
| return 0; \ |
| } \ |
| if (size < 1 || size > BLAKE##VARIANT##_OUTBYTES) { \ |
| ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST_SIZE); \ |
| return 0; \ |
| } \ |
| ossl_blake##variant##_param_set_digest_length(&mdctx->params, (uint8_t)size); \ |
| } \ |
| \ |
| return 1; \ |
| } \ |
| \ |
| static int ossl_blake##variantsize##_init(void *ctx) \ |
| { \ |
| struct blake##variant##_md_data_st *mdctx = ctx; \ |
| uint8_t digest_length = mdctx->params.digest_length; \ |
| \ |
| ossl_blake##variant##_param_init(&mdctx->params); \ |
| if (digest_length != 0) \ |
| mdctx->params.digest_length = digest_length; \ |
| return ossl_blake##variant##_init(&mdctx->ctx, &mdctx->params); \ |
| } \ |
| \ |
| static OSSL_FUNC_digest_init_fn blake##variantsize##_internal_init; \ |
| static OSSL_FUNC_digest_newctx_fn blake##variantsize##_newctx; \ |
| static OSSL_FUNC_digest_freectx_fn blake##variantsize##_freectx; \ |
| static OSSL_FUNC_digest_dupctx_fn blake##variantsize##_dupctx; \ |
| static OSSL_FUNC_digest_final_fn blake##variantsize##_internal_final; \ |
| static OSSL_FUNC_digest_get_params_fn blake##variantsize##_get_params; \ |
| \ |
| static int blake##variantsize##_internal_init(void *ctx, const OSSL_PARAM params[]) \ |
| { \ |
| return ossl_prov_is_running() && ossl_blake##variant##_set_ctx_params(ctx, params) \ |
| && ossl_blake##variantsize##_init(ctx); \ |
| } \ |
| \ |
| static void *blake##variantsize##_newctx(void *prov_ctx) \ |
| { \ |
| struct blake##variant##_md_data_st *ctx; \ |
| \ |
| ctx = ossl_prov_is_running() ? OPENSSL_zalloc(sizeof(*ctx)) : NULL; \ |
| return ctx; \ |
| } \ |
| \ |
| static void blake##variantsize##_freectx(void *vctx) \ |
| { \ |
| struct blake##variant##_md_data_st *ctx; \ |
| \ |
| ctx = (struct blake##variant##_md_data_st *)vctx; \ |
| OPENSSL_clear_free(ctx, sizeof(*ctx)); \ |
| } \ |
| \ |
| static void *blake##variantsize##_dupctx(void *ctx) \ |
| { \ |
| struct blake##variant##_md_data_st *in, *ret; \ |
| \ |
| in = (struct blake##variant##_md_data_st *)ctx; \ |
| ret = ossl_prov_is_running() ? OPENSSL_malloc(sizeof(*ret)) : NULL; \ |
| if (ret != NULL) \ |
| *ret = *in; \ |
| return ret; \ |
| } \ |
| \ |
| static void blake##variantsize##_copyctx(void *voutctx, void *vinctx) \ |
| { \ |
| struct blake##variant##_md_data_st *inctx, *outctx; \ |
| \ |
| outctx = (struct blake##variant##_md_data_st *)voutctx; \ |
| inctx = (struct blake##variant##_md_data_st *)vinctx; \ |
| *outctx = *inctx; \ |
| } \ |
| \ |
| static int blake##variantsize##_internal_final(void *ctx, unsigned char *out, \ |
| size_t *outl, size_t outsz) \ |
| { \ |
| struct blake##variant##_md_data_st *b_ctx; \ |
| \ |
| b_ctx = (struct blake##variant##_md_data_st *)ctx; \ |
| \ |
| if (!ossl_prov_is_running()) \ |
| return 0; \ |
| \ |
| *outl = b_ctx->ctx.outlen; \ |
| \ |
| if (outsz == 0) \ |
| return 1; \ |
| \ |
| if (outsz < *outl) { \ |
| ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DIGEST_SIZE); \ |
| return 0; \ |
| } \ |
| \ |
| return ossl_blake##variant##_final(out, ctx); \ |
| } \ |
| \ |
| static int blake##variantsize##_get_params(OSSL_PARAM params[]) \ |
| { \ |
| return ossl_digest_default_get_params(params, BLAKE##VARIANT##_BLOCKBYTES, BLAKE##VARIANT##_OUTBYTES, 0); \ |
| } \ |
| \ |
| const OSSL_DISPATCH ossl_blake##variantsize##_functions[] = { \ |
| { OSSL_FUNC_DIGEST_NEWCTX, (void (*)(void))blake##variantsize##_newctx }, \ |
| { OSSL_FUNC_DIGEST_UPDATE, (void (*)(void))ossl_blake##variant##_update }, \ |
| { OSSL_FUNC_DIGEST_FINAL, (void (*)(void))blake##variantsize##_internal_final }, \ |
| { OSSL_FUNC_DIGEST_FREECTX, (void (*)(void))blake##variantsize##_freectx }, \ |
| { OSSL_FUNC_DIGEST_DUPCTX, (void (*)(void))blake##variantsize##_dupctx }, \ |
| { OSSL_FUNC_DIGEST_COPYCTX, (void (*)(void))blake##variantsize##_copyctx }, \ |
| { OSSL_FUNC_DIGEST_GET_PARAMS, (void (*)(void))blake##variantsize##_get_params }, \ |
| { OSSL_FUNC_DIGEST_GETTABLE_PARAMS, \ |
| (void (*)(void))ossl_digest_default_gettable_params }, \ |
| { OSSL_FUNC_DIGEST_INIT, (void (*)(void))blake##variantsize##_internal_init }, \ |
| { OSSL_FUNC_DIGEST_GETTABLE_CTX_PARAMS, \ |
| (void (*)(void))blake_gettable_ctx_params }, \ |
| { OSSL_FUNC_DIGEST_SETTABLE_CTX_PARAMS, \ |
| (void (*)(void))blake_settable_ctx_params }, \ |
| { OSSL_FUNC_DIGEST_GET_CTX_PARAMS, \ |
| (void (*)(void))ossl_blake##variant##_get_ctx_params }, \ |
| { OSSL_FUNC_DIGEST_SET_CTX_PARAMS, \ |
| (void (*)(void))ossl_blake##variant##_set_ctx_params }, \ |
| { 0, NULL } \ |
| }; |
| |
| IMPLEMENT_BLAKE_functions(2s, 2S, 2s256) |
| IMPLEMENT_BLAKE_functions(2b, 2B, 2b512) |
