lc_dilithium.h

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/*
 * Copyright (C) 2022 - 2024, Stephan Mueller <smueller@chronox.de>
 *
 * License: see LICENSE file in root directory
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
 * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR 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 NOT ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
/*
 * This code is derived in parts from the code distribution provided with
 * https://github.com/pq-crystals/dilithium
 *
 * That code is released under Public Domain
 * (https://creativecommons.org/share-your-work/public-domain/cc0/);
 * or Apache 2.0 License (https://www.apache.org/licenses/LICENSE-2.0.html).
 */
 
#ifndef LC_DILITHIUM_H
#define LC_DILITHIUM_H
 
#include "ext_headers.h"
 
#if defined __has_include
#if __has_include("lc_dilithium_87.h")
#include "lc_dilithium_87.h"
#define LC_DILITHIUM_87_ENABLED
#endif
#if __has_include("lc_dilithium_65.h")
#include "lc_dilithium_65.h"
#define LC_DILITHIUM_65_ENABLED
#endif
#if __has_include("lc_dilithium_44.h")
#include "lc_dilithium_44.h"
#define LC_DILITHIUM_44_ENABLED
#endif
#else
#error "Compiler misses __has_include"
#endif
 
#ifdef __cplusplus
extern "C" {
#endif
 
enum lc_dilithium_type {
        LC_DILITHIUM_UNKNOWN,
        LC_DILITHIUM_87,
        LC_DILITHIUM_65,
        LC_DILITHIUM_44,
};
 
struct lc_dilithium_sk {
        enum lc_dilithium_type dilithium_type;
        union {
#ifdef LC_DILITHIUM_87_ENABLED
                struct lc_dilithium_87_sk sk_87;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
                struct lc_dilithium_65_sk sk_65;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
                struct lc_dilithium_44_sk sk_44;
#endif
        } key;
};
 
struct lc_dilithium_pk {
        enum lc_dilithium_type dilithium_type;
        union {
#ifdef LC_DILITHIUM_87_ENABLED
                struct lc_dilithium_87_pk pk_87;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
                struct lc_dilithium_65_pk pk_65;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
                struct lc_dilithium_44_pk pk_44;
#endif
        } key;
};
 
struct lc_dilithium_sig {
        enum lc_dilithium_type dilithium_type;
        union {
#ifdef LC_DILITHIUM_87_ENABLED
                struct lc_dilithium_87_sig sig_87;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
                struct lc_dilithium_65_sig sig_65;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
                struct lc_dilithium_44_sig sig_44;
#endif
        } sig;
};
 
static inline int lc_dilithium_ctx_alloc(struct lc_dilithium_ctx **ctx)
{
        if (!ctx)
                return -EINVAL;
 
#ifdef LC_DILITHIUM_87_ENABLED
        return lc_dilithium_87_ctx_alloc(ctx);
#elif defined(LC_DILITHIUM_65_ENABLED)
        return lc_dilithium_65_ctx_alloc(ctx);
#elif defined(LC_DILITHIUM_44_ENABLED)
        return lc_dilithium_44_ctx_alloc(ctx);
#else
        return -EOPNOTSUPP;
#endif
}
 
static inline void lc_dilithium_ctx_zero_free(struct lc_dilithium_ctx *ctx)
{
        if (!ctx)
                return;
 
#ifdef LC_DILITHIUM_87_ENABLED
        lc_dilithium_87_ctx_zero_free(ctx);
#elif defined(LC_DILITHIUM_65_ENABLED)
        lc_dilithium_65_ctx_zero_free(ctx);
#elif defined(LC_DILITHIUM_44_ENABLED)
        lc_dilithium_44_ctx_zero_free(ctx);
#endif
}
 
static inline void lc_dilithium_ctx_zero(struct lc_dilithium_ctx *ctx)
{
        if (!ctx)
                return;
 
#ifdef LC_DILITHIUM_87_ENABLED
        lc_dilithium_87_ctx_zero(ctx);
#elif defined(LC_DILITHIUM_65_ENABLED)
        lc_dilithium_65_ctx_zero(ctx);
#elif defined(LC_DILITHIUM_44_ENABLED)
        lc_dilithium_44_ctx_zero(ctx);
#endif
}
 
static inline enum lc_dilithium_type
lc_dilithium_sk_type(const struct lc_dilithium_sk *sk)
{
        if (!sk)
                return LC_DILITHIUM_UNKNOWN;
        return sk->dilithium_type;
}
 
static inline enum lc_dilithium_type
lc_dilithium_pk_type(const struct lc_dilithium_pk *pk)
{
        if (!pk)
                return LC_DILITHIUM_UNKNOWN;
        return pk->dilithium_type;
}
 
static inline enum lc_dilithium_type
lc_dilithium_sig_type(const struct lc_dilithium_sig *sig)
{
        if (!sig)
                return LC_DILITHIUM_UNKNOWN;
        return sig->dilithium_type;
}
 
LC_PURE
static inline unsigned int
lc_dilithium_sk_size(enum lc_dilithium_type dilithium_type)
{
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_member_size(struct lc_dilithium_sk, key.sk_87);
#else
                return 0;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_member_size(struct lc_dilithium_sk, key.sk_65);
#else
                return 0;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_member_size(struct lc_dilithium_sk, key.sk_44);
#else
                return 0;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return 0;
        }
}
 
LC_PURE
static inline unsigned int
lc_dilithium_pk_size(enum lc_dilithium_type dilithium_type)
{
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_member_size(struct lc_dilithium_pk, key.pk_87);
#else
                return 0;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_member_size(struct lc_dilithium_pk, key.pk_65);
#else
                return 0;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_member_size(struct lc_dilithium_pk, key.pk_44);
#else
                return 0;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return 0;
        }
}
 
LC_PURE
static inline unsigned int
lc_dilithium_sig_size(enum lc_dilithium_type dilithium_type)
{
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_member_size(struct lc_dilithium_sig, sig.sig_87);
#else
                return 0;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_member_size(struct lc_dilithium_sig, sig.sig_65);
#else
                return 0;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_member_size(struct lc_dilithium_sig, sig.sig_44);
#else
                return 0;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return 0;
        }
}
 
static inline int lc_dilithium_sk_load(struct lc_dilithium_sk *sk,
                                       const uint8_t *src_key,
                                       size_t src_key_len)
{
        if (!sk || !src_key || src_key_len == 0) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (src_key_len == lc_dilithium_sk_size(LC_DILITHIUM_87)) {
                struct lc_dilithium_87_sk *_sk = &sk->key.sk_87;
 
                memcpy(_sk->sk, src_key, src_key_len);
                sk->dilithium_type = LC_DILITHIUM_87;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (src_key_len == lc_dilithium_sk_size(LC_DILITHIUM_65)) {
                struct lc_dilithium_65_sk *_sk = &sk->key.sk_65;
 
                memcpy(_sk->sk, src_key, src_key_len);
                sk->dilithium_type = LC_DILITHIUM_65;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (src_key_len == lc_dilithium_sk_size(LC_DILITHIUM_44)) {
                struct lc_dilithium_44_sk *_sk = &sk->key.sk_44;
 
                memcpy(_sk->sk, src_key, src_key_len);
                sk->dilithium_type = LC_DILITHIUM_44;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_pk_load(struct lc_dilithium_pk *pk,
                                       const uint8_t *src_key,
                                       size_t src_key_len)
{
        if (!pk || !src_key || src_key_len == 0) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (src_key_len == lc_dilithium_pk_size(LC_DILITHIUM_87)) {
                struct lc_dilithium_87_pk *_pk = &pk->key.pk_87;
 
                memcpy(_pk->pk, src_key, src_key_len);
                pk->dilithium_type = LC_DILITHIUM_87;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (src_key_len == lc_dilithium_pk_size(LC_DILITHIUM_65)) {
                struct lc_dilithium_65_pk *_pk = &pk->key.pk_65;
 
                memcpy(_pk->pk, src_key, src_key_len);
                pk->dilithium_type = LC_DILITHIUM_65;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (src_key_len == lc_dilithium_pk_size(LC_DILITHIUM_44)) {
                struct lc_dilithium_44_pk *_pk = &pk->key.pk_44;
 
                memcpy(_pk->pk, src_key, src_key_len);
                pk->dilithium_type = LC_DILITHIUM_44;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_sig_load(struct lc_dilithium_sig *sig,
                                        const uint8_t *src_sig,
                                        size_t src_sig_len)
{
        if (!sig || !src_sig || src_sig_len == 0) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (src_sig_len == lc_dilithium_sig_size(LC_DILITHIUM_87)) {
                struct lc_dilithium_87_sig *_sig = &sig->sig.sig_87;
 
                memcpy(_sig->sig, src_sig, src_sig_len);
                sig->dilithium_type = LC_DILITHIUM_87;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (src_sig_len == lc_dilithium_sig_size(LC_DILITHIUM_65)) {
                struct lc_dilithium_65_sig *_sig = &sig->sig.sig_65;
 
                memcpy(_sig->sig, src_sig, src_sig_len);
                sig->dilithium_type = LC_DILITHIUM_65;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (src_sig_len == lc_dilithium_sig_size(LC_DILITHIUM_44)) {
                struct lc_dilithium_44_sig *_sig = &sig->sig.sig_44;
 
                memcpy(_sig->sig, src_sig, src_sig_len);
                sig->dilithium_type = LC_DILITHIUM_44;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_sk_ptr(uint8_t **dilithium_key,
                                      size_t *dilithium_key_len,
                                      struct lc_dilithium_sk *sk)
{
        if (!sk || !dilithium_key || !dilithium_key_len) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (sk->dilithium_type == LC_DILITHIUM_87) {
                struct lc_dilithium_87_sk *_sk = &sk->key.sk_87;
 
                *dilithium_key = _sk->sk;
                *dilithium_key_len = lc_dilithium_sk_size(sk->dilithium_type);
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (sk->dilithium_type == LC_DILITHIUM_65) {
                struct lc_dilithium_65_sk *_sk = &sk->key.sk_65;
 
                *dilithium_key = _sk->sk;
                *dilithium_key_len = lc_dilithium_sk_size(sk->dilithium_type);
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (sk->dilithium_type == LC_DILITHIUM_44) {
                struct lc_dilithium_44_sk *_sk = &sk->key.sk_44;
 
                *dilithium_key = _sk->sk;
                *dilithium_key_len = lc_dilithium_sk_size(sk->dilithium_type);
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_pk_ptr(uint8_t **dilithium_key,
                                      size_t *dilithium_key_len,
                                      struct lc_dilithium_pk *pk)
{
        if (!pk || !dilithium_key || !dilithium_key_len) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (pk->dilithium_type == LC_DILITHIUM_87) {
                struct lc_dilithium_87_pk *_pk = &pk->key.pk_87;
 
                *dilithium_key = _pk->pk;
                *dilithium_key_len = lc_dilithium_pk_size(pk->dilithium_type);
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (pk->dilithium_type == LC_DILITHIUM_65) {
                struct lc_dilithium_65_pk *_pk = &pk->key.pk_65;
 
                *dilithium_key = _pk->pk;
                *dilithium_key_len = lc_dilithium_pk_size(pk->dilithium_type);
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (pk->dilithium_type == LC_DILITHIUM_44) {
                struct lc_dilithium_44_pk *_pk = &pk->key.pk_44;
 
                *dilithium_key = _pk->pk;
                *dilithium_key_len = lc_dilithium_pk_size(pk->dilithium_type);
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_sig_ptr(uint8_t **dilithium_sig,
                                       size_t *dilithium_sig_len,
                                       struct lc_dilithium_sig *sig)
{
        if (!sig || !dilithium_sig || !dilithium_sig_len) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (sig->dilithium_type == LC_DILITHIUM_87) {
                struct lc_dilithium_87_sig *_sig = &sig->sig.sig_87;
 
                *dilithium_sig = _sig->sig;
                *dilithium_sig_len = lc_dilithium_sig_size(sig->dilithium_type);
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (sig->dilithium_type == LC_DILITHIUM_65) {
                struct lc_dilithium_65_sig *_sig = &sig->sig.sig_65;
 
                *dilithium_sig = _sig->sig;
                *dilithium_sig_len = lc_dilithium_sig_size(sig->dilithium_type);
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (sig->dilithium_type == LC_DILITHIUM_44) {
                struct lc_dilithium_44_sig *_sig = &sig->sig.sig_44;
 
                *dilithium_sig = _sig->sig;
                *dilithium_sig_len = lc_dilithium_sig_size(sig->dilithium_type);
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_keypair(struct lc_dilithium_pk *pk,
                                       struct lc_dilithium_sk *sk,
                                       struct lc_rng_ctx *rng_ctx,
                                       enum lc_dilithium_type dilithium_type)
{
        if (!pk || !sk)
                return -EINVAL;
 
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_87_keypair(&pk->key.pk_87, &sk->key.sk_87,
                                               rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_65_keypair(&pk->key.pk_65, &sk->key.sk_65,
                                               rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_44_keypair(&pk->key.pk_44, &sk->key.sk_44,
                                               rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int
lc_dilithium_keypair_from_seed(struct lc_dilithium_pk *pk,
                               struct lc_dilithium_sk *sk, const uint8_t *seed,
                               size_t seedlen,
                               enum lc_dilithium_type dilithium_type)
{
        if (!pk || !sk)
                return -EINVAL;
 
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_87_keypair_from_seed(
                        &pk->key.pk_87, &sk->key.sk_87, seed, seedlen);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_65_keypair_from_seed(
                        &pk->key.pk_65, &sk->key.sk_65, seed, seedlen);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_44_keypair_from_seed(
                        &pk->key.pk_44, &sk->key.sk_44, seed, seedlen);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_sign(struct lc_dilithium_sig *sig,
                                    const uint8_t *m, size_t mlen,
                                    const struct lc_dilithium_sk *sk,
                                    struct lc_rng_ctx *rng_ctx)
{
        if (!sk || !sig)
                return -EINVAL;
 
        switch (sk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                sig->dilithium_type = LC_DILITHIUM_87;
                return lc_dilithium_87_sign(&sig->sig.sig_87, m, mlen,
                                            &sk->key.sk_87, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                sig->dilithium_type = LC_DILITHIUM_65;
                return lc_dilithium_65_sign(&sig->sig.sig_65, m, mlen,
                                            &sk->key.sk_65, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                sig->dilithium_type = LC_DILITHIUM_44;
                return lc_dilithium_44_sign(&sig->sig.sig_44, m, mlen,
                                            &sk->key.sk_44, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_sign_init(struct lc_dilithium_ctx *ctx,
                                         const struct lc_dilithium_sk *sk)
{
        if (!sk)
                return -EINVAL;
 
        switch (sk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_sign_init(ctx, &sk->key.sk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_sign_init(ctx, &sk->key.sk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_sign_init(ctx, &sk->key.sk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_sign_update(struct lc_dilithium_ctx *ctx,
                                           const uint8_t *m, size_t mlen)
{
#ifdef LC_DILITHIUM_87_ENABLED
        return lc_dilithium_87_sign_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_65_ENABLED)
        return lc_dilithium_65_sign_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_44_ENABLED)
        return lc_dilithium_44_sign_update(ctx, m, mlen);
#else
        return -EOPNOTSUPP;
#endif
}
 
static inline int lc_dilithium_sign_final(struct lc_dilithium_sig *sig,
                                          struct lc_dilithium_ctx *ctx,
                                          const struct lc_dilithium_sk *sk,
                                          struct lc_rng_ctx *rng_ctx)
{
        if (!sk || !sig)
                return -EINVAL;
 
        switch (sk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                sig->dilithium_type = LC_DILITHIUM_87;
                return lc_dilithium_87_sign_final(&sig->sig.sig_87, ctx,
                                                  &sk->key.sk_87, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                sig->dilithium_type = LC_DILITHIUM_65;
                return lc_dilithium_65_sign_final(&sig->sig.sig_65, ctx,
                                                  &sk->key.sk_65, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                sig->dilithium_type = LC_DILITHIUM_44;
                return lc_dilithium_44_sign_final(&sig->sig.sig_44, ctx,
                                                  &sk->key.sk_44, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_verify(const struct lc_dilithium_sig *sig,
                                      const uint8_t *m, size_t mlen,
                                      const struct lc_dilithium_pk *pk)
{
        if (!pk || !sig || sig->dilithium_type != pk->dilithium_type)
                return -EINVAL;
 
        switch (pk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_verify(&sig->sig.sig_87, m, mlen,
                                              &pk->key.pk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_verify(&sig->sig.sig_65, m, mlen,
                                              &pk->key.pk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_verify(&sig->sig.sig_44, m, mlen,
                                              &pk->key.pk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_verify_init(struct lc_dilithium_ctx *ctx,
                                           const struct lc_dilithium_pk *pk)
{
        if (!pk)
                return -EINVAL;
 
        switch (pk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_verify_init(ctx, &pk->key.pk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_verify_init(ctx, &pk->key.pk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_verify_init(ctx, &pk->key.pk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_verify_update(struct lc_dilithium_ctx *ctx,
                                             const uint8_t *m, size_t mlen)
{
#ifdef LC_DILITHIUM_87_ENABLED
        return lc_dilithium_87_verify_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_65_ENABLED)
        return lc_dilithium_65_verify_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_44_ENABLED)
        return lc_dilithium_44_verify_update(ctx, m, mlen);
#else
        return -EOPNOTSUPP;
#endif
}
 
static inline int lc_dilithium_verify_final(const struct lc_dilithium_sig *sig,
                                            struct lc_dilithium_ctx *ctx,
                                            const struct lc_dilithium_pk *pk)
{
        if (!pk || !sig || sig->dilithium_type != pk->dilithium_type)
                return -EINVAL;
 
        switch (pk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_verify_final(&sig->sig.sig_87, ctx,
                                                    &pk->key.pk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_verify_final(&sig->sig.sig_65, ctx,
                                                    &pk->key.pk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_verify_final(&sig->sig.sig_44, ctx,
                                                    &pk->key.pk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
/****************************** Dilithium ED25510 *****************************/
 
#ifdef LC_DILITHIUM_ED25519_SIG
 
struct lc_dilithium_ed25519_sk {
        enum lc_dilithium_type dilithium_type;
        union {
#ifdef LC_DILITHIUM_87_ENABLED
                struct lc_dilithium_87_ed25519_sk sk_87;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
                struct lc_dilithium_65_ed25519_sk sk_65;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
                struct lc_dilithium_44_ed25519_sk sk_44;
#endif
        } key;
};
 
struct lc_dilithium_ed25519_pk {
        enum lc_dilithium_type dilithium_type;
        union {
#ifdef LC_DILITHIUM_87_ENABLED
                struct lc_dilithium_87_ed25519_pk pk_87;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
                struct lc_dilithium_65_ed25519_pk pk_65;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
                struct lc_dilithium_44_ed25519_pk pk_44;
#endif
        } key;
};
 
struct lc_dilithium_ed25519_sig {
        enum lc_dilithium_type dilithium_type;
        union {
#ifdef LC_DILITHIUM_87_ENABLED
                struct lc_dilithium_87_ed25519_sig sig_87;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
                struct lc_dilithium_65_ed25519_sig sig_65;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
                struct lc_dilithium_44_ed25519_sig sig_44;
#endif
        } sig;
};
 
static inline int lc_dilithium_ed25519_ctx_alloc(
        struct lc_dilithium_ed25519_ctx **ctx)
{
        if (!ctx)
                return -EINVAL;
 
#ifdef LC_DILITHIUM_87_ENABLED
        return lc_dilithium_87_ed25519_ctx_alloc(ctx);
#elif defined(LC_DILITHIUM_65_ENABLED)
        return lc_dilithium_65_ed25519_ctx_alloc(ctx);
#elif defined(LC_DILITHIUM_44_ENABLED)
        return lc_dilithium_44_ed25519_ctx_alloc(ctx);
#else
        return -EOPNOTSUPP;
#endif
}
 
static inline void lc_dilithium_ed25519_ctx_zero_free(
        struct lc_dilithium_ed25519_ctx *ctx)
{
        if (!ctx)
                return;
 
#ifdef LC_DILITHIUM_87_ENABLED
        lc_dilithium_87_ed25519_ctx_zero_free(ctx);
#elif defined(LC_DILITHIUM_65_ENABLED)
        lc_dilithium_65_ed25519_ctx_zero_free(ctx);
#elif defined(LC_DILITHIUM_44_ENABLED)
        lc_dilithium_44_ed25519_ctx_zero_free(ctx);
#endif
}
 
static inline void lc_dilithium_ed25519_ctx_zero(
        struct lc_dilithium_ed25519_ctx *ctx)
{
        if (!ctx)
                return;
 
#ifdef LC_DILITHIUM_87_ENABLED
        lc_dilithium_87_ed25519_ctx_zero(ctx);
#elif defined(LC_DILITHIUM_65_ENABLED)
        lc_dilithium_65_ed25519_ctx_zero(ctx);
#elif defined(LC_DILITHIUM_44_ENABLED)
        lc_dilithium_44_ed25519_ctx_zero(ctx);
#endif
}
 
static inline enum lc_dilithium_type
lc_dilithium_ed25519_sk_type(const struct lc_dilithium_ed25519_sk *sk)
{
        if (!sk)
                return LC_DILITHIUM_UNKNOWN;
        return sk->dilithium_type;
}
 
static inline enum lc_dilithium_type
lc_dilithium_ed25519_pk_type(const struct lc_dilithium_ed25519_pk *pk)
{
        if (!pk)
                return LC_DILITHIUM_UNKNOWN;
        return pk->dilithium_type;
}
 
static inline enum lc_dilithium_type
lc_dilithium_ed25519_sig_type(const struct lc_dilithium_ed25519_sig *sig)
{
        if (!sig)
                return LC_DILITHIUM_UNKNOWN;
        return sig->dilithium_type;
}
 
LC_PURE
static inline unsigned int
lc_dilithium_ed25519_sk_size(enum lc_dilithium_type dilithium_type)
{
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_sk,
                                      key.sk_87);
#else
                return 0;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_sk,
                                      key.sk_65);
#else
                return 0;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_sk,
                                      key.sk_44);
#else
                return 0;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return 0;
        }
}
 
LC_PURE
static inline unsigned int
lc_dilithium_ed25519_pk_size(enum lc_dilithium_type dilithium_type)
{
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_pk,
                                      key.pk_87);
#else
                return 0;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_pk,
                                      key.pk_65);
#else
                return 0;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_pk,
                                      key.pk_44);
#else
                return 0;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return 0;
        }
}
 
LC_PURE
static inline unsigned int
lc_dilithium_ed25519_sig_size(enum lc_dilithium_type dilithium_type)
{
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_sig,
                                      sig.sig_87);
#else
                return 0;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_sig,
                                      sig.sig_65);
#else
                return 0;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_member_size(struct lc_dilithium_ed25519_sig,
                                      sig.sig_44);
#else
                return 0;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return 0;
        }
}
 
static inline int lc_dilithium_ed25519_sk_load(
        struct lc_dilithium_ed25519_sk *sk, const uint8_t *dilithium_src_key,
        size_t dilithium_src_key_len, const uint8_t *ed25519_src_key,
        size_t ed25519_src_key_len)
{
        if (!sk || !dilithium_src_key || !ed25519_src_key ||
            ed25519_src_key_len != LC_ED25519_SECRETKEYBYTES) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (dilithium_src_key_len ==
                   lc_dilithium_sk_size(LC_DILITHIUM_87)) {
                struct lc_dilithium_87_ed25519_sk *_sk = &sk->key.sk_87;
 
                memcpy(_sk->sk.sk, dilithium_src_key, dilithium_src_key_len);
                memcpy(_sk->sk_ed25519.sk, ed25519_src_key,
                       ed25519_src_key_len);
                sk->dilithium_type = LC_DILITHIUM_87;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (dilithium_src_key_len ==
                   lc_dilithium_sk_size(LC_DILITHIUM_65)) {
                struct lc_dilithium_65_ed25519_sk *_sk = &sk->key.sk_65;
 
                memcpy(_sk->sk.sk, dilithium_src_key, dilithium_src_key_len);
                memcpy(_sk->sk_ed25519.sk, ed25519_src_key,
                       ed25519_src_key_len);
                sk->dilithium_type = LC_DILITHIUM_65;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (dilithium_src_key_len ==
                   lc_dilithium_sk_size(LC_DILITHIUM_44)) {
                struct lc_dilithium_44_ed25519_sk *_sk = &sk->key.sk_44;
 
                memcpy(_sk->sk.sk, dilithium_src_key, dilithium_src_key_len);
                memcpy(_sk->sk_ed25519.sk, ed25519_src_key,
                       ed25519_src_key_len);
                sk->dilithium_type = LC_DILITHIUM_44;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_ed25519_pk_load(
        struct lc_dilithium_ed25519_pk *pk, const uint8_t *dilithium_src_key,
        size_t dilithium_src_key_len, const uint8_t *ed25519_src_key,
        size_t ed25519_src_key_len)
{
        if (!pk || !dilithium_src_key || !ed25519_src_key ||
            ed25519_src_key_len != LC_ED25519_PUBLICKEYBYTES) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (dilithium_src_key_len ==
                   lc_dilithium_pk_size(LC_DILITHIUM_87)) {
                struct lc_dilithium_87_ed25519_pk *_pk = &pk->key.pk_87;
 
                memcpy(_pk->pk.pk, dilithium_src_key, dilithium_src_key_len);
                memcpy(_pk->pk_ed25519.pk, ed25519_src_key,
                       ed25519_src_key_len);
                pk->dilithium_type = LC_DILITHIUM_87;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (dilithium_src_key_len ==
                   lc_dilithium_pk_size(LC_DILITHIUM_65)) {
                struct lc_dilithium_65_ed25519_pk *_pk = &pk->key.pk_65;
 
                memcpy(_pk->pk.pk, dilithium_src_key, dilithium_src_key_len);
                memcpy(_pk->pk_ed25519.pk, ed25519_src_key,
                       ed25519_src_key_len);
                pk->dilithium_type = LC_DILITHIUM_65;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (dilithium_src_key_len ==
                   lc_dilithium_pk_size(LC_DILITHIUM_44)) {
                struct lc_dilithium_44_ed25519_pk *_pk = &pk->key.pk_44;
 
                memcpy(_pk->pk.pk, dilithium_src_key, dilithium_src_key_len);
                memcpy(_pk->pk_ed25519.pk, ed25519_src_key,
                       ed25519_src_key_len);
                pk->dilithium_type = LC_DILITHIUM_44;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_ed25519_sig_load(
        struct lc_dilithium_ed25519_sig *sig, const uint8_t *dilithium_src_sig,
        size_t dilithium_src_sig_len, const uint8_t *ed25519_src_sig,
        size_t ed25519_src_sig_len)
{
        if (!sig || !dilithium_src_sig || !ed25519_src_sig ||
            ed25519_src_sig_len != LC_ED25519_SIGBYTES) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (dilithium_src_sig_len ==
                   lc_dilithium_sig_size(LC_DILITHIUM_87)) {
                struct lc_dilithium_87_ed25519_sig *_sig = &sig->sig.sig_87;
 
                memcpy(_sig->sig.sig, dilithium_src_sig, dilithium_src_sig_len);
                memcpy(_sig->sig_ed25519.sig, ed25519_src_sig,
                       ed25519_src_sig_len);
                sig->dilithium_type = LC_DILITHIUM_87;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (dilithium_src_sig_len ==
                   lc_dilithium_sig_size(LC_DILITHIUM_65)) {
                struct lc_dilithium_65_ed25519_sig *_sig = &sig->sig.sig_65;
 
                memcpy(_sig->sig.sig, dilithium_src_sig, dilithium_src_sig_len);
                memcpy(_sig->sig_ed25519.sig, ed25519_src_sig,
                       ed25519_src_sig_len);
                sig->dilithium_type = LC_DILITHIUM_65;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (dilithium_src_sig_len ==
                   lc_dilithium_sig_size(LC_DILITHIUM_44)) {
                struct lc_dilithium_44_ed25519_sig *_sig = &sig->sig.sig_44;
 
                memcpy(_sig->sig.sig, dilithium_src_sig, dilithium_src_sig_len);
                memcpy(_sig->sig_ed25519.sig, ed25519_src_sig,
                       ed25519_src_sig_len);
                sig->dilithium_type = LC_DILITHIUM_44;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int
lc_dilithium_ed25519_sk_ptr(uint8_t **dilithium_key, size_t *dilithium_key_len,
                            uint8_t **ed25519_key, size_t *ed25519_key_len,
                            struct lc_dilithium_ed25519_sk *sk)
{
        if (!sk || !dilithium_key || !dilithium_key_len || !ed25519_key ||
            !ed25519_key_len) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (sk->dilithium_type == LC_DILITHIUM_87) {
                struct lc_dilithium_87_ed25519_sk *_sk = &sk->key.sk_87;
 
                *dilithium_key = _sk->sk.sk;
                *dilithium_key_len = lc_dilithium_sk_size(sk->dilithium_type);
                *ed25519_key = _sk->sk_ed25519.sk;
                *ed25519_key_len = LC_ED25519_SECRETKEYBYTES;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (sk->dilithium_type == LC_DILITHIUM_65) {
                struct lc_dilithium_65_ed25519_sk *_sk = &sk->key.sk_65;
 
                *dilithium_key = _sk->sk.sk;
                *dilithium_key_len = lc_dilithium_sk_size(sk->dilithium_type);
                *ed25519_key = _sk->sk_ed25519.sk;
                *ed25519_key_len = LC_ED25519_SECRETKEYBYTES;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (sk->dilithium_type == LC_DILITHIUM_44) {
                struct lc_dilithium_44_ed25519_sk *_sk = &sk->key.sk_44;
 
                *dilithium_key = _sk->sk.sk;
                *dilithium_key_len = lc_dilithium_sk_size(sk->dilithium_type);
                *ed25519_key = _sk->sk_ed25519.sk;
                *ed25519_key_len = LC_ED25519_SECRETKEYBYTES;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int
lc_dilithium_ed25519_pk_ptr(uint8_t **dilithium_key, size_t *dilithium_key_len,
                            uint8_t **ed25519_key, size_t *ed25519_key_len,
                            struct lc_dilithium_ed25519_pk *pk)
{
        if (!pk || !dilithium_key || !dilithium_key_len || !ed25519_key ||
            !ed25519_key_len) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (pk->dilithium_type == LC_DILITHIUM_87) {
                struct lc_dilithium_87_ed25519_pk *_pk = &pk->key.pk_87;
 
                *dilithium_key = _pk->pk.pk;
                *dilithium_key_len = lc_dilithium_pk_size(pk->dilithium_type);
                *ed25519_key = _pk->pk_ed25519.pk;
                *ed25519_key_len = LC_ED25519_PUBLICKEYBYTES;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (pk->dilithium_type == LC_DILITHIUM_65) {
                struct lc_dilithium_65_ed25519_pk *_pk = &pk->key.pk_65;
 
                *dilithium_key = _pk->pk.pk;
                *dilithium_key_len = lc_dilithium_pk_size(pk->dilithium_type);
                *ed25519_key = _pk->pk_ed25519.pk;
                *ed25519_key_len = LC_ED25519_PUBLICKEYBYTES;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (pk->dilithium_type == LC_DILITHIUM_44) {
                struct lc_dilithium_44_ed25519_pk *_pk = &pk->key.pk_44;
 
                *dilithium_key = _pk->pk.pk;
                *dilithium_key_len = lc_dilithium_pk_size(pk->dilithium_type);
                *ed25519_key = _pk->pk_ed25519.pk;
                *ed25519_key_len = LC_ED25519_PUBLICKEYBYTES;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int
lc_dilithium_ed25519_sig_ptr(uint8_t **dilithium_sig, size_t *dilithium_sig_len,
                             uint8_t **ed25519_sig, size_t *ed25519_sig_len,
                             struct lc_dilithium_ed25519_sig *sig)
{
        if (!sig || !dilithium_sig || !dilithium_sig_len || !ed25519_sig ||
            !ed25519_sig_len) {
                return -EINVAL;
#ifdef LC_DILITHIUM_87_ENABLED
        } else if (sig->dilithium_type == LC_DILITHIUM_87) {
                struct lc_dilithium_87_ed25519_sig *_sig = &sig->sig.sig_87;
 
                *dilithium_sig = _sig->sig.sig;
                *dilithium_sig_len = lc_dilithium_sig_size(sig->dilithium_type);
                *ed25519_sig = _sig->sig_ed25519.sig;
                *ed25519_sig_len = LC_ED25519_SIGBYTES;
                return 0;
#endif
#ifdef LC_DILITHIUM_65_ENABLED
        } else if (sig->dilithium_type == LC_DILITHIUM_65) {
                struct lc_dilithium_65_ed25519_sig *_sig = &sig->sig.sig_65;
 
                *dilithium_sig = _sig->sig.sig;
                *dilithium_sig_len = lc_dilithium_sig_size(sig->dilithium_type);
                *ed25519_sig = _sig->sig_ed25519.sig;
                *ed25519_sig_len = LC_ED25519_SIGBYTES;
                return 0;
#endif
#ifdef LC_DILITHIUM_44_ENABLED
        } else if (sig->dilithium_type == LC_DILITHIUM_44) {
                struct lc_dilithium_44_ed25519_sig *_sig = &sig->sig.sig_44;
 
                *dilithium_sig = _sig->sig.sig;
                *dilithium_sig_len = lc_dilithium_sig_size(sig->dilithium_type);
                *ed25519_sig = _sig->sig_ed25519.sig;
                *ed25519_sig_len = LC_ED25519_SIGBYTES;
                return 0;
#endif
        } else {
                return -EINVAL;
        }
}
 
static inline int lc_dilithium_ed25519_keypair(
        struct lc_dilithium_ed25519_pk *pk, struct lc_dilithium_ed25519_sk *sk,
        struct lc_rng_ctx *rng_ctx, enum lc_dilithium_type dilithium_type)
{
        if (!pk || !sk)
                return -EINVAL;
 
        switch (dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_87_ed25519_keypair(&pk->key.pk_87,
                                                       &sk->key.sk_87, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_65_ed25519_keypair(&pk->key.pk_65,
                                                       &sk->key.sk_65, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                pk->dilithium_type = dilithium_type;
                sk->dilithium_type = dilithium_type;
                return lc_dilithium_44_ed25519_keypair(&pk->key.pk_44,
                                                       &sk->key.sk_44, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_ed25519_sign(
        struct lc_dilithium_ed25519_sig *sig, const uint8_t *m, size_t mlen,
        const struct lc_dilithium_ed25519_sk *sk, struct lc_rng_ctx *rng_ctx)
{
        if (!sk || !sig)
                return -EINVAL;
 
        switch (sk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                sig->dilithium_type = LC_DILITHIUM_87;
                return lc_dilithium_87_ed25519_sign(&sig->sig.sig_87, m, mlen,
                                                    &sk->key.sk_87, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                sig->dilithium_type = LC_DILITHIUM_65;
                return lc_dilithium_65_ed25519_sign(&sig->sig.sig_65, m, mlen,
                                                    &sk->key.sk_65, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                sig->dilithium_type = LC_DILITHIUM_44;
                return lc_dilithium_44_ed25519_sign(&sig->sig.sig_44, m, mlen,
                                                    &sk->key.sk_44, rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_ed25519_sign_init(
        struct lc_dilithium_ed25519_ctx *ctx,
        const struct lc_dilithium_ed25519_sk *sk)
{
        if (!ctx || !sk)
                return -EINVAL;
 
        switch (sk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_ed25519_sign_init(ctx, &sk->key.sk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_ed25519_sign_init(ctx, &sk->key.sk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_ed25519_sign_init(ctx, &sk->key.sk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_ed25519_sign_update(
        struct lc_dilithium_ed25519_ctx *ctx, const uint8_t *m, size_t mlen)
{
        if (!ctx)
                return -EINVAL;
 
#ifdef LC_DILITHIUM_87_ENABLED
        return lc_dilithium_87_ed25519_sign_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_65_ENABLED)
        return lc_dilithium_65_ed25519_sign_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_44_ENABLED)
        return lc_dilithium_44_ed25519_sign_update(ctx, m, mlen);
#else
        return -EOPNOTSUPP;
#endif
}
 
static inline int lc_dilithium_ed25519_sign_final(
        struct lc_dilithium_ed25519_sig *sig,
        struct lc_dilithium_ed25519_ctx *ctx,
        const struct lc_dilithium_ed25519_sk *sk, struct lc_rng_ctx *rng_ctx)
{
        if (!sk || !sig || !ctx)
                return -EINVAL;
 
        switch (sk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                sig->dilithium_type = LC_DILITHIUM_87;
                return lc_dilithium_87_ed25519_sign_final(&sig->sig.sig_87, ctx,
                                                          &sk->key.sk_87,
                                                          rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                sig->dilithium_type = LC_DILITHIUM_65;
                return lc_dilithium_65_ed25519_sign_final(&sig->sig.sig_65, ctx,
                                                          &sk->key.sk_65,
                                                          rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                sig->dilithium_type = LC_DILITHIUM_44;
                return lc_dilithium_44_ed25519_sign_final(&sig->sig.sig_44, ctx,
                                                          &sk->key.sk_44,
                                                          rng_ctx);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int
lc_dilithium_ed25519_verify(const struct lc_dilithium_ed25519_sig *sig,
                            const uint8_t *m, size_t mlen,
                            const struct lc_dilithium_ed25519_pk *pk)
{
        if (!pk || !sig || sig->dilithium_type != pk->dilithium_type)
                return -EINVAL;
 
        switch (pk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_ed25519_verify(&sig->sig.sig_87, m, mlen,
                                                      &pk->key.pk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_ed25519_verify(&sig->sig.sig_65, m, mlen,
                                                      &pk->key.pk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_ed25519_verify(&sig->sig.sig_44, m, mlen,
                                                      &pk->key.pk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_ed25519_verify_init(
        struct lc_dilithium_ed25519_ctx *ctx,
        const struct lc_dilithium_ed25519_pk *pk)
{
        if (!pk || !ctx)
                return -EINVAL;
 
        switch (pk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_ed25519_verify_init(ctx, &pk->key.pk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_ed25519_verify_init(ctx, &pk->key.pk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_ed25519_verify_init(ctx, &pk->key.pk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
static inline int lc_dilithium_ed25519_verify_update(
        struct lc_dilithium_ed25519_ctx *ctx, const uint8_t *m, size_t mlen)
{
        if (!ctx)
                return -EINVAL;
 
#ifdef LC_DILITHIUM_87_ENABLED
        return lc_dilithium_87_ed25519_verify_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_65_ENABLED)
        return lc_dilithium_65_ed25519_verify_update(ctx, m, mlen);
#elif defined(LC_DILITHIUM_44_ENABLED)
        return lc_dilithium_44_ed25519_verify_update(ctx, m, mlen);
#else
        return -EOPNOTSUPP;
#endif
}
 
static inline int lc_dilithium_ed25519_verify_final(
        const struct lc_dilithium_ed25519_sig *sig,
        struct lc_dilithium_ed25519_ctx *ctx,
        const struct lc_dilithium_ed25519_pk *pk)
{
        if (!ctx || !pk || !sig || sig->dilithium_type != pk->dilithium_type)
                return -EINVAL;
 
        switch (pk->dilithium_type) {
        case LC_DILITHIUM_87:
#ifdef LC_DILITHIUM_87_ENABLED
                return lc_dilithium_87_ed25519_verify_final(&sig->sig.sig_87,
                                                            ctx,
                                                            &pk->key.pk_87);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_65:
#ifdef LC_DILITHIUM_65_ENABLED
                return lc_dilithium_65_ed25519_verify_final(&sig->sig.sig_65,
                                                            ctx,
                                                            &pk->key.pk_65);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_44:
#ifdef LC_DILITHIUM_44_ENABLED
                return lc_dilithium_44_ed25519_verify_final(&sig->sig.sig_44,
                                                            ctx,
                                                            &pk->key.pk_44);
#else
                return -EOPNOTSUPP;
#endif
        case LC_DILITHIUM_UNKNOWN:
        default:
                return -EOPNOTSUPP;
        }
}
 
#endif /* LC_DILITHIUM_ED25519_SIG */
 
#ifdef __cplusplus
}
#endif
 
#endif /* LC_DILITHIUM_H */