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FIPS202: Consolidate backend MLD_USE_NATIVE_* flags #1207

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FIPS202: Consolidate backend MLD_USE_NATIVE_* flags #1207

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2 changes: 1 addition & 1 deletion dev/fips202/aarch64/x1_scalar.h
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Expand Up @@ -8,7 +8,7 @@
#define MLD_DEV_FIPS202_AARCH64_X1_SCALAR_H

/* Part of backend API */
#define MLD_USE_FIPS202_X1_NATIVE
#define MLD_USE_NATIVE_FIPS202_X1
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X1_SCALAR

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2 changes: 1 addition & 1 deletion dev/fips202/aarch64/x1_v84a.h
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Expand Up @@ -12,7 +12,7 @@
#endif

/* Part of backend API */
#define MLD_USE_FIPS202_X1_NATIVE
#define MLD_USE_NATIVE_FIPS202_X1
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X1_V84A

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2 changes: 1 addition & 1 deletion dev/fips202/aarch64/x2_v84a.h
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Expand Up @@ -12,7 +12,7 @@
#endif

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X2_V84A

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2 changes: 1 addition & 1 deletion dev/fips202/aarch64/x4_v8a_scalar.h
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Expand Up @@ -8,7 +8,7 @@
#define MLD_DEV_FIPS202_AARCH64_X4_V8A_SCALAR_H

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X4_V8A_SCALAR_HYBRID

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2 changes: 1 addition & 1 deletion dev/fips202/aarch64/x4_v8a_v84a_scalar.h
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Expand Up @@ -12,7 +12,7 @@
#endif

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X4_V8A_V84A_SCALAR_HYBRID

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6 changes: 3 additions & 3 deletions dev/fips202/armv81m/mve.h
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Expand Up @@ -10,9 +10,9 @@
#define MLD_FIPS202_NATIVE_ARMV81M

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE
#define MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
#define MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES
#define MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES
/* Guard for assembly file */
#define MLD_FIPS202_ARMV81M_NEED_X4

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2 changes: 1 addition & 1 deletion dev/fips202/x86_64/keccak_f1600_x4_avx2.h
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Expand Up @@ -12,7 +12,7 @@
#define MLD_FIPS202_X86_64_NEED_X4_AVX2

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4

#if !defined(__ASSEMBLER__)
#include "../api.h"
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4 changes: 2 additions & 2 deletions examples/custom_backend/README.md
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Expand Up @@ -31,7 +31,7 @@ The configuration file [mldsa_native_config.h](mldsa_native/mldsa_native_config.

A custom backend consists of:
1. A metadata header (e.g., [custom.h](mldsa_native/src/fips202/native/custom/custom.h)) that:
- Sets `MLD_USE_FIPS202_X1_NATIVE` (and/or `X4`) to indicate which functions are replaced
- Sets `MLD_USE_NATIVE_FIPS202_X1` (and/or `X4`) to indicate which functions are replaced
- Includes the implementation header
2. An implementation providing `mld_keccakf1600_native()` (and/or batched variants)

Expand All @@ -41,7 +41,7 @@ Example backend metadata file:
#define CUSTOM_FIPS202_BACKEND_H

/* Indicate we're replacing 1-fold Keccak-f1600 */
#define MLD_USE_FIPS202_X1_NATIVE
#define MLD_USE_NATIVE_FIPS202_X1

/* Include the implementation */
#include "custom/src/keccak_impl.h"
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2 changes: 1 addition & 1 deletion examples/custom_backend/mldsa_native/src/fips202/native/custom/custom.h
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Expand Up @@ -10,7 +10,7 @@
#include "../api.h"
#include "src/sha3.h"
/* Replace (single) Keccak-F1600 by tiny-SHA3's */
#define MLD_USE_FIPS202_X1_NATIVE
#define MLD_USE_NATIVE_FIPS202_X1
static MLD_INLINE int mld_keccak_f1600_x1_native(uint64_t *state)
{
tiny_sha3_keccakf(state);
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18 changes: 9 additions & 9 deletions mldsa/mldsa_native.c
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Expand Up @@ -626,23 +626,23 @@
/* mldsa/src/fips202/native/aarch64/x1_scalar.h */
#undef MLD_FIPS202_AARCH64_NEED_X1_SCALAR
#undef MLD_FIPS202_NATIVE_AARCH64_X1_SCALAR_H
#undef MLD_USE_FIPS202_X1_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X1
/* mldsa/src/fips202/native/aarch64/x1_v84a.h */
#undef MLD_FIPS202_AARCH64_NEED_X1_V84A
#undef MLD_FIPS202_NATIVE_AARCH64_X1_V84A_H
#undef MLD_USE_FIPS202_X1_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X1
/* mldsa/src/fips202/native/aarch64/x2_v84a.h */
#undef MLD_FIPS202_AARCH64_NEED_X2_V84A
#undef MLD_FIPS202_NATIVE_AARCH64_X2_V84A_H
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
/* mldsa/src/fips202/native/aarch64/x4_v8a_scalar.h */
#undef MLD_FIPS202_AARCH64_NEED_X4_V8A_SCALAR_HYBRID
#undef MLD_FIPS202_NATIVE_AARCH64_X4_V8A_SCALAR_H
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
/* mldsa/src/fips202/native/aarch64/x4_v8a_v84a_scalar.h */
#undef MLD_FIPS202_AARCH64_NEED_X4_V8A_V84A_SCALAR_HYBRID
#undef MLD_FIPS202_NATIVE_AARCH64_X4_V8A_V84A_SCALAR_H
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
#endif /* MLD_SYS_AARCH64 */
#if defined(MLD_SYS_X86_64)
/*
Expand All @@ -651,7 +651,7 @@
/* mldsa/src/fips202/native/x86_64/keccak_f1600_x4_avx2.h */
#undef MLD_FIPS202_NATIVE_X86_64_KECCAK_F1600_X4_AVX2_H
#undef MLD_FIPS202_X86_64_NEED_X4_AVX2
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
/* mldsa/src/fips202/native/x86_64/src/fips202_native_x86_64.h */
#undef MLD_FIPS202_NATIVE_X86_64_SRC_FIPS202_NATIVE_X86_64_H
#undef mld_keccak_f1600_x4_avx2_asm
Expand All @@ -667,9 +667,9 @@
#undef MLD_FIPS202_ARMV81M_NEED_X4
#undef MLD_FIPS202_NATIVE_ARMV81M
#undef MLD_FIPS202_NATIVE_ARMV81M_MVE_H
#undef MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
#undef MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES
#undef MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES
#undef mld_keccak_f1600_x4_native_impl
#undef mld_keccak_f1600_x4_state_extract_bytes
#undef mld_keccak_f1600_x4_state_xor_bytes
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18 changes: 9 additions & 9 deletions mldsa/mldsa_native_asm.S
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Expand Up @@ -639,23 +639,23 @@
/* mldsa/src/fips202/native/aarch64/x1_scalar.h */
#undef MLD_FIPS202_AARCH64_NEED_X1_SCALAR
#undef MLD_FIPS202_NATIVE_AARCH64_X1_SCALAR_H
#undef MLD_USE_FIPS202_X1_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X1
/* mldsa/src/fips202/native/aarch64/x1_v84a.h */
#undef MLD_FIPS202_AARCH64_NEED_X1_V84A
#undef MLD_FIPS202_NATIVE_AARCH64_X1_V84A_H
#undef MLD_USE_FIPS202_X1_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X1
/* mldsa/src/fips202/native/aarch64/x2_v84a.h */
#undef MLD_FIPS202_AARCH64_NEED_X2_V84A
#undef MLD_FIPS202_NATIVE_AARCH64_X2_V84A_H
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
/* mldsa/src/fips202/native/aarch64/x4_v8a_scalar.h */
#undef MLD_FIPS202_AARCH64_NEED_X4_V8A_SCALAR_HYBRID
#undef MLD_FIPS202_NATIVE_AARCH64_X4_V8A_SCALAR_H
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
/* mldsa/src/fips202/native/aarch64/x4_v8a_v84a_scalar.h */
#undef MLD_FIPS202_AARCH64_NEED_X4_V8A_V84A_SCALAR_HYBRID
#undef MLD_FIPS202_NATIVE_AARCH64_X4_V8A_V84A_SCALAR_H
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
#endif /* MLD_SYS_AARCH64 */
#if defined(MLD_SYS_X86_64)
/*
Expand All @@ -664,7 +664,7 @@
/* mldsa/src/fips202/native/x86_64/keccak_f1600_x4_avx2.h */
#undef MLD_FIPS202_NATIVE_X86_64_KECCAK_F1600_X4_AVX2_H
#undef MLD_FIPS202_X86_64_NEED_X4_AVX2
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
/* mldsa/src/fips202/native/x86_64/src/fips202_native_x86_64.h */
#undef MLD_FIPS202_NATIVE_X86_64_SRC_FIPS202_NATIVE_X86_64_H
#undef mld_keccak_f1600_x4_avx2_asm
Expand All @@ -680,9 +680,9 @@
#undef MLD_FIPS202_ARMV81M_NEED_X4
#undef MLD_FIPS202_NATIVE_ARMV81M
#undef MLD_FIPS202_NATIVE_ARMV81M_MVE_H
#undef MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE
#undef MLD_USE_FIPS202_X4_NATIVE
#undef MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE
#undef MLD_USE_NATIVE_FIPS202_X4
#undef MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES
#undef MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES
#undef mld_keccak_f1600_x4_native_impl
#undef mld_keccak_f1600_x4_state_extract_bytes
#undef mld_keccak_f1600_x4_state_xor_bytes
Expand Down
16 changes: 8 additions & 8 deletions mldsa/src/fips202/keccakf1600.c
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Expand Up @@ -123,14 +123,14 @@ void mld_keccakf1600x4_extract_bytes(uint64_t *state, unsigned char *data0,
unsigned char *data3, unsigned offset,
unsigned length)
{
#if defined(MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE)
#if defined(MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES)
if (mld_keccakf1600_extract_bytes_x4_native(state, data0, data1, data2, data3,
offset, length) ==
MLD_NATIVE_FUNC_SUCCESS)
{
return;
}
#endif /* MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE */
#endif /* MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES */
mld_keccakf1600x4_extract_bytes_c(state, data0, data1, data2, data3, offset,
length);
}
Expand Down Expand Up @@ -173,27 +173,27 @@ void mld_keccakf1600x4_xor_bytes(uint64_t *state, const unsigned char *data0,
const unsigned char *data3, unsigned offset,
unsigned length)
{
#if defined(MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE)
#if defined(MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES)
if (mld_keccakf1600_xor_bytes_x4_native(state, data0, data1, data2, data3,
offset,
length) == MLD_NATIVE_FUNC_SUCCESS)
{
return;
}
#endif /* MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE */
#endif /* MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES */
mld_keccakf1600x4_xor_bytes_c(state, data0, data1, data2, data3, offset,
length);
}

MLD_INTERNAL_API
void mld_keccakf1600x4_permute(uint64_t *state)
{
#if defined(MLD_USE_FIPS202_X4_NATIVE)
#if defined(MLD_USE_NATIVE_FIPS202_X4)
if (mld_keccak_f1600_x4_native(state) == MLD_NATIVE_FUNC_SUCCESS)
{
return;
}
#endif /* MLD_USE_FIPS202_X4_NATIVE */
#endif /* MLD_USE_NATIVE_FIPS202_X4 */
mld_keccakf1600_permute(state + MLD_KECCAK_LANES * 0);
mld_keccakf1600_permute(state + MLD_KECCAK_LANES * 1);
mld_keccakf1600_permute(state + MLD_KECCAK_LANES * 2);
Expand Down Expand Up @@ -491,12 +491,12 @@ __contract__(
MLD_INTERNAL_API
void mld_keccakf1600_permute(uint64_t *state)
{
#if defined(MLD_USE_FIPS202_X1_NATIVE)
#if defined(MLD_USE_NATIVE_FIPS202_X1)
if (mld_keccak_f1600_x1_native(state) == MLD_NATIVE_FUNC_SUCCESS)
{
return;
}
#endif /* MLD_USE_FIPS202_X1_NATIVE */
#endif /* MLD_USE_NATIVE_FIPS202_X1 */
mld_keccakf1600_permute_c(state);
}

Expand Down
2 changes: 1 addition & 1 deletion mldsa/src/fips202/native/aarch64/x1_scalar.h
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Expand Up @@ -8,7 +8,7 @@
#define MLD_FIPS202_NATIVE_AARCH64_X1_SCALAR_H

/* Part of backend API */
#define MLD_USE_FIPS202_X1_NATIVE
#define MLD_USE_NATIVE_FIPS202_X1
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X1_SCALAR

Expand Down
2 changes: 1 addition & 1 deletion mldsa/src/fips202/native/aarch64/x1_v84a.h
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Expand Up @@ -12,7 +12,7 @@
#endif

/* Part of backend API */
#define MLD_USE_FIPS202_X1_NATIVE
#define MLD_USE_NATIVE_FIPS202_X1
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X1_V84A

Expand Down
2 changes: 1 addition & 1 deletion mldsa/src/fips202/native/aarch64/x2_v84a.h
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Expand Up @@ -12,7 +12,7 @@
#endif

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X2_V84A

Expand Down
2 changes: 1 addition & 1 deletion mldsa/src/fips202/native/aarch64/x4_v8a_scalar.h
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Expand Up @@ -8,7 +8,7 @@
#define MLD_FIPS202_NATIVE_AARCH64_X4_V8A_SCALAR_H

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X4_V8A_SCALAR_HYBRID

Expand Down
2 changes: 1 addition & 1 deletion mldsa/src/fips202/native/aarch64/x4_v8a_v84a_scalar.h
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Expand Up @@ -12,7 +12,7 @@
#endif

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
/* Guard for assembly file */
#define MLD_FIPS202_AARCH64_NEED_X4_V8A_V84A_SCALAR_HYBRID

Expand Down
22 changes: 11 additions & 11 deletions mldsa/src/fips202/native/api.h
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Expand Up @@ -39,13 +39,13 @@
* A _backend_ is a specific implementation of parts of this interface.
*
* You can replace 1-fold or 4-fold batched Keccak-F1600.
* To enable, set MLD_USE_FIPS202_X1_NATIVE or MLD_USE_FIPS202_X4_NATIVE
* To enable, set MLD_USE_NATIVE_FIPS202_X1 or MLD_USE_NATIVE_FIPS202_X4
* in your backend, and define the inline wrappers mld_keccak_f1600_x1_native()
* and/or mld_keccak_f1600_x4_native(), respectively, to forward to your
* implementation.
*/

#if defined(MLD_USE_FIPS202_X1_NATIVE)
#if defined(MLD_USE_NATIVE_FIPS202_X1)
MLD_MUST_CHECK_RETURN_VALUE
static MLD_INLINE int mld_keccak_f1600_x1_native(uint64_t *state)
__contract__(
Expand All @@ -54,8 +54,8 @@ __contract__(
ensures(return_value == MLD_NATIVE_FUNC_FALLBACK || return_value == MLD_NATIVE_FUNC_SUCCESS)
ensures((return_value == MLD_NATIVE_FUNC_FALLBACK) ==> array_unchanged_u64(state, 25 * 1))
);
#endif /* MLD_USE_FIPS202_X1_NATIVE */
#if defined(MLD_USE_FIPS202_X4_NATIVE)
#endif /* MLD_USE_NATIVE_FIPS202_X1 */
#if defined(MLD_USE_NATIVE_FIPS202_X4)
MLD_MUST_CHECK_RETURN_VALUE
static MLD_INLINE int mld_keccak_f1600_x4_native(uint64_t *state)
__contract__(
Expand All @@ -64,7 +64,7 @@ __contract__(
ensures(return_value == MLD_NATIVE_FUNC_FALLBACK || return_value == MLD_NATIVE_FUNC_SUCCESS)
ensures((return_value == MLD_NATIVE_FUNC_FALLBACK) ==> array_unchanged_u64(state, 25 * 4))
);
#endif /* MLD_USE_FIPS202_X4_NATIVE */
#endif /* MLD_USE_NATIVE_FIPS202_X4 */

/*
* Native x4 XOR bytes and extract bytes interface.
Expand All @@ -78,12 +78,12 @@ __contract__(
* NOTE: We assume that the custom representation of the zero state is the
* all-zero state.
*
* MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE: Backend provides native XOR bytes
* MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE: Backend provides native extract
* MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES: Backend provides native XOR bytes
* MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES: Backend provides native extract
* bytes
*/

#if defined(MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE)
#if defined(MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES)
MLD_MUST_CHECK_RETURN_VALUE
static MLD_INLINE int mld_keccakf1600_xor_bytes_x4_native(
uint64_t *state, const unsigned char *data0, const unsigned char *data1,
Expand All @@ -103,9 +103,9 @@ __contract__(
assigns(memory_slice(state, sizeof(uint64_t) * 25 * 4))
ensures(return_value == MLD_NATIVE_FUNC_FALLBACK || return_value == MLD_NATIVE_FUNC_SUCCESS)
ensures((return_value == MLD_NATIVE_FUNC_FALLBACK) ==> array_unchanged_u64(state, 25 * 4)));
#endif /* MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE */
#endif /* MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES */

#if defined(MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE)
#if defined(MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES)
MLD_MUST_CHECK_RETURN_VALUE
static MLD_INLINE int mld_keccakf1600_extract_bytes_x4_native(
uint64_t *state, unsigned char *data0, unsigned char *data1,
Expand All @@ -124,6 +124,6 @@ __contract__(
assigns(memory_slice(data2, length))
assigns(memory_slice(data3, length))
ensures(return_value == MLD_NATIVE_FUNC_FALLBACK || return_value == MLD_NATIVE_FUNC_SUCCESS));
#endif /* MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE */
#endif /* MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES */

#endif /* !MLD_FIPS202_NATIVE_API_H */
6 changes: 3 additions & 3 deletions mldsa/src/fips202/native/armv81m/mve.h
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Expand Up @@ -10,9 +10,9 @@
#define MLD_FIPS202_NATIVE_ARMV81M

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_FIPS202_X4_XOR_BYTES_NATIVE
#define MLD_USE_FIPS202_X4_EXTRACT_BYTES_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4
#define MLD_USE_NATIVE_FIPS202_X4_XOR_BYTES
#define MLD_USE_NATIVE_FIPS202_X4_EXTRACT_BYTES
/* Guard for assembly file */
#define MLD_FIPS202_ARMV81M_NEED_X4

Expand Down
2 changes: 1 addition & 1 deletion mldsa/src/fips202/native/x86_64/keccak_f1600_x4_avx2.h
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Expand Up @@ -12,7 +12,7 @@
#define MLD_FIPS202_X86_64_NEED_X4_AVX2

/* Part of backend API */
#define MLD_USE_FIPS202_X4_NATIVE
#define MLD_USE_NATIVE_FIPS202_X4

#if !defined(__ASSEMBLER__)
#include "../api.h"
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