/* SPDX-License-Identifier: GPL-3.0-only */
#ifndef SAK_WOLF_CRYPTO_POLICY_H
#define SAK_WOLF_CRYPTO_POLICY_H

#include <wolfssl/wolfcrypt/settings.h>

/* PR10133 recommends this existing check for older releases. In 5.8.2 the
 * software validator must not be replaced with a successful hardware stub. */
#if !defined(HAVE_ECC) || !defined(WOLFSSL_VALIDATE_ECC_IMPORT) || \
    !defined(HAVE_ECC_CHECK_KEY)
#error "wolf crypto policy: ECC requires validated imports"
#endif
#if defined(NO_ECC_CHECK_PUBKEY_ORDER) || defined(WOLF_CRYPTO_CB_ONLY_ECC) || \
    defined(WOLFSSL_ATECC508A) || defined(WOLFSSL_ATECC608A) || \
    defined(WOLFSSL_CRYPTOCELL) || defined(WOLFSSL_SILABS_SE_ACCEL) || \
    defined(WOLFSSL_SE050) || defined(WOLFSSL_STM32_PKA)
#error "wolf crypto policy: review ECC validation backend before changing it"
#endif
#ifndef WOLFSSL_ECDHX_SHARED_NOT_ZERO
#error "wolf crypto policy: X25519 requires all-zero shared-secret rejection"
#endif

/* PR9275 selects small math on Xtensa to avoid compiler-introduced timing
 * differences. Check resolved settings, not just command-line intentions.
 * https://github.com/wolfSSL/wolfssl/pull/9275
 */
#if !defined(HAVE_CURVE25519) || !defined(CURVE25519_SMALL)
#error "wolf crypto policy: X25519 requires CURVE25519_SMALL"
#endif
#if !defined(HAVE_ED25519) || !defined(ED25519_SMALL)
#error "wolf crypto policy: Ed25519 requires ED25519_SMALL"
#endif
/* 5.8.2 excludes small math from automatic blinding and rejects this pairing.
 * Do not force blinding back on: key layout and function signatures differ.
 */
#ifdef WOLFSSL_CURVE25519_BLINDING
#error "wolf crypto policy: small X25519 is incompatible with blinding"
#endif
#if defined(HAVE_CURVE448) || defined(HAVE_ED448)
#error "wolf crypto policy: review PR9275 small math before enabling 448"
#endif

#endif