From eb8dd9dca1228af0cd132f515509051ecfabf6f6 Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Mon, 14 Apr 2025 17:32:06 +0000 Subject: This commit was manufactured by cvs2git to create tag 'tb_20250414'. --- src/lib/libcrypto/kdf/tls1_prf.c | 345 --------------------------------------- 1 file changed, 345 deletions(-) delete mode 100644 src/lib/libcrypto/kdf/tls1_prf.c (limited to 'src/lib/libcrypto/kdf/tls1_prf.c') diff --git a/src/lib/libcrypto/kdf/tls1_prf.c b/src/lib/libcrypto/kdf/tls1_prf.c deleted file mode 100644 index 7d6231e3c7..0000000000 --- a/src/lib/libcrypto/kdf/tls1_prf.c +++ /dev/null @@ -1,345 +0,0 @@ -/* $OpenBSD: tls1_prf.c,v 1.40 2024/07/10 06:53:27 tb Exp $ */ -/* - * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project - * 2016. - */ -/* ==================================================================== - * Copyright (c) 2015 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -#include -#include -#include - -#include -#include -#include - -#include "evp_local.h" - -#define TLS1_PRF_MAXBUF 1024 - -struct tls1_prf_ctx { - const EVP_MD *md; - unsigned char *secret; - size_t secret_len; - unsigned char seed[TLS1_PRF_MAXBUF]; - size_t seed_len; -}; - -static int -pkey_tls1_prf_init(EVP_PKEY_CTX *ctx) -{ - struct tls1_prf_ctx *kctx; - - if ((kctx = calloc(1, sizeof(*kctx))) == NULL) { - KDFerror(ERR_R_MALLOC_FAILURE); - return 0; - } - ctx->data = kctx; - - return 1; -} - -static void -pkey_tls1_prf_cleanup(EVP_PKEY_CTX *ctx) -{ - struct tls1_prf_ctx *kctx = ctx->data; - - freezero(kctx->secret, kctx->secret_len); - freezero(kctx, sizeof(*kctx)); -} - -static int -pkey_tls1_prf_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) -{ - struct tls1_prf_ctx *kctx = ctx->data; - - switch (type) { - case EVP_PKEY_CTRL_TLS_MD: - kctx->md = p2; - return 1; - - case EVP_PKEY_CTRL_TLS_SECRET: - if (p1 < 0) - return 0; - - freezero(kctx->secret, kctx->secret_len); - kctx->secret = NULL; - kctx->secret_len = 0; - - explicit_bzero(kctx->seed, kctx->seed_len); - kctx->seed_len = 0; - - if (p1 == 0 || p2 == NULL) - return 0; - - if ((kctx->secret = calloc(1, p1)) == NULL) - return 0; - memcpy(kctx->secret, p2, p1); - kctx->secret_len = p1; - - return 1; - - case EVP_PKEY_CTRL_TLS_SEED: - if (p1 == 0 || p2 == NULL) - return 1; - if (p1 < 0 || p1 > (int)(TLS1_PRF_MAXBUF - kctx->seed_len)) - return 0; - memcpy(kctx->seed + kctx->seed_len, p2, p1); - kctx->seed_len += p1; - return 1; - - default: - return -2; - } -} - -static int -pkey_tls1_prf_ctrl_str(EVP_PKEY_CTX *ctx, const char *type, const char *value) -{ - if (value == NULL) { - KDFerror(KDF_R_VALUE_MISSING); - return 0; - } - if (strcmp(type, "md") == 0) { - struct tls1_prf_ctx *kctx = ctx->data; - - const EVP_MD *md = EVP_get_digestbyname(value); - if (md == NULL) { - KDFerror(KDF_R_INVALID_DIGEST); - return 0; - } - kctx->md = md; - return 1; - } - if (strcmp(type, "secret") == 0) - return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_TLS_SECRET, value); - if (strcmp(type, "hexsecret") == 0) - return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_TLS_SECRET, value); - if (strcmp(type, "seed") == 0) - return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_TLS_SEED, value); - if (strcmp(type, "hexseed") == 0) - return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_TLS_SEED, value); - - KDFerror(KDF_R_UNKNOWN_PARAMETER_TYPE); - return -2; -} - -static int -tls1_prf_P_hash(const EVP_MD *md, const unsigned char *secret, size_t secret_len, - const unsigned char *seed, size_t seed_len, unsigned char *out, size_t out_len) -{ - int chunk; - EVP_MD_CTX *ctx = NULL, *ctx_tmp = NULL, *ctx_init = NULL; - EVP_PKEY *mac_key = NULL; - unsigned char A1[EVP_MAX_MD_SIZE]; - size_t A1_len; - int ret = 0; - - if ((chunk = EVP_MD_size(md)) < 0) - goto err; - - if ((ctx = EVP_MD_CTX_new()) == NULL) - goto err; - if ((ctx_tmp = EVP_MD_CTX_new()) == NULL) - goto err; - if ((ctx_init = EVP_MD_CTX_new()) == NULL) - goto err; - - EVP_MD_CTX_set_flags(ctx_init, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW); - - if ((mac_key = EVP_PKEY_new_raw_private_key(EVP_PKEY_HMAC, NULL, - secret, secret_len)) == NULL) - goto err; - - if (!EVP_DigestSignInit(ctx_init, NULL, md, NULL, mac_key)) - goto err; - if (!EVP_MD_CTX_copy_ex(ctx, ctx_init)) - goto err; - if (seed != NULL && !EVP_DigestSignUpdate(ctx, seed, seed_len)) - goto err; - if (!EVP_DigestSignFinal(ctx, A1, &A1_len)) - goto err; - - for (;;) { - /* Reinit mac contexts */ - if (!EVP_MD_CTX_copy_ex(ctx, ctx_init)) - goto err; - if (!EVP_DigestSignUpdate(ctx, A1, A1_len)) - goto err; - if (out_len > (size_t)chunk && !EVP_MD_CTX_copy_ex(ctx_tmp, ctx)) - goto err; - if (seed != NULL && !EVP_DigestSignUpdate(ctx, seed, seed_len)) - goto err; - - if (out_len > (size_t)chunk) { - size_t mac_len; - if (!EVP_DigestSignFinal(ctx, out, &mac_len)) - goto err; - out += mac_len; - out_len -= mac_len; - if (!EVP_DigestSignFinal(ctx_tmp, A1, &A1_len)) - goto err; - } else { - if (!EVP_DigestSignFinal(ctx, A1, &A1_len)) - goto err; - memcpy(out, A1, out_len); - break; - } - } - - ret = 1; - - err: - EVP_PKEY_free(mac_key); - EVP_MD_CTX_free(ctx); - EVP_MD_CTX_free(ctx_tmp); - EVP_MD_CTX_free(ctx_init); - explicit_bzero(A1, sizeof(A1)); - - return ret; -} - -static int -tls1_prf_alg(const EVP_MD *md, const unsigned char *secret, size_t secret_len, - const unsigned char *seed, size_t seed_len, unsigned char *out, size_t out_len) -{ - unsigned char *tmp = NULL; - size_t half_len; - size_t i; - int ret = 0; - - if (EVP_MD_type(md) != NID_md5_sha1) - return tls1_prf_P_hash(md, secret, secret_len, seed, seed_len, - out, out_len); - - half_len = secret_len - secret_len / 2; - if (!tls1_prf_P_hash(EVP_md5(), secret, half_len, seed, seed_len, - out, out_len)) - goto err; - - if ((tmp = calloc(1, out_len)) == NULL) { - KDFerror(ERR_R_MALLOC_FAILURE); - goto err; - } - secret += secret_len - half_len; - if (!tls1_prf_P_hash(EVP_sha1(), secret, half_len, seed, seed_len, - tmp, out_len)) - goto err; - for (i = 0; i < out_len; i++) - out[i] ^= tmp[i]; - - ret = 1; - - err: - freezero(tmp, out_len); - - return ret; -} - -static int -pkey_tls1_prf_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *key_len) -{ - struct tls1_prf_ctx *kctx = ctx->data; - - if (kctx->md == NULL) { - KDFerror(KDF_R_MISSING_MESSAGE_DIGEST); - return 0; - } - if (kctx->secret == NULL) { - KDFerror(KDF_R_MISSING_SECRET); - return 0; - } - if (kctx->seed_len == 0) { - KDFerror(KDF_R_MISSING_SEED); - return 0; - } - - return tls1_prf_alg(kctx->md, kctx->secret, kctx->secret_len, - kctx->seed, kctx->seed_len, key, *key_len); -} - -const EVP_PKEY_METHOD tls1_prf_pkey_meth = { - .pkey_id = EVP_PKEY_TLS1_PRF, - .flags = 0, - - .init = pkey_tls1_prf_init, - .copy = NULL, - .cleanup = pkey_tls1_prf_cleanup, - - .paramgen = NULL, - - .keygen = NULL, - - .sign_init = NULL, - .sign = NULL, - - .verify_init = NULL, - .verify = NULL, - - .verify_recover = NULL, - - .signctx_init = NULL, - .signctx = NULL, - - .encrypt = NULL, - - .decrypt = NULL, - - .derive_init = NULL, - .derive = pkey_tls1_prf_derive, - - .ctrl = pkey_tls1_prf_ctrl, - .ctrl_str = pkey_tls1_prf_ctrl_str, -}; 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