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Merged
merged 9 commits into from
Nov 3, 2025
Merged

Monobuild changes #588

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be1ca08
Introduce poly_kl.h
mkannwischer Nov 1, 2025
8a30017
Correct namespacing for mld_polyvecl and mld_polyveck
mkannwischer Nov 1, 2025
7129e69
Exclude pre-hashing code from NO_SHARED-builds
mkannwischer Nov 1, 2025
71922da
Move mld_zeroize to ct.h
mkannwischer Nov 1, 2025
87bc0d1
Exclude FIPS202 code from NO_SHARED-builds
mkannwischer Nov 1, 2025
2758d33
Add namespacing to static functions to enable multi-level SCU builds
mkannwischer Nov 1, 2025
677b887
Undefine macros at end of c file to facilitate SCU builds
mkannwischer Nov 1, 2025
b0aed66
poly_kl.c: Switch to NAMESPACE_KL
mkannwischer Nov 1, 2025
5dc659b
Make MLD_EMPTY_CU include a parameter-set-specific namespace
mkannwischer Nov 1, 2025
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4 changes: 2 additions & 2 deletions BIBLIOGRAPHY.md
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Expand Up @@ -48,8 +48,8 @@ source code and documentation.
* Referenced from:
- [README.md](README.md)
- [examples/bring_your_own_fips202/mldsa_native/mldsa_native.h](examples/bring_your_own_fips202/mldsa_native/mldsa_native.h)
- [examples/bring_your_own_fips202/mldsa_native/src/common.h](examples/bring_your_own_fips202/mldsa_native/src/common.h)
- [examples/bring_your_own_fips202/mldsa_native/src/config.h](examples/bring_your_own_fips202/mldsa_native/src/config.h)
- [examples/bring_your_own_fips202/mldsa_native/src/ct.h](examples/bring_your_own_fips202/mldsa_native/src/ct.h)
- [examples/bring_your_own_fips202/mldsa_native/src/ntt.h](examples/bring_your_own_fips202/mldsa_native/src/ntt.h)
- [examples/bring_your_own_fips202/mldsa_native/src/poly.c](examples/bring_your_own_fips202/mldsa_native/src/poly.c)
- [examples/bring_your_own_fips202/mldsa_native/src/poly_kl.c](examples/bring_your_own_fips202/mldsa_native/src/poly_kl.c)
Expand All @@ -58,8 +58,8 @@ source code and documentation.
- [examples/bring_your_own_fips202/mldsa_native/src/sign.c](examples/bring_your_own_fips202/mldsa_native/src/sign.c)
- [examples/bring_your_own_fips202/mldsa_native/src/sign.h](examples/bring_your_own_fips202/mldsa_native/src/sign.h)
- [mldsa/mldsa_native.h](mldsa/mldsa_native.h)
- [mldsa/src/common.h](mldsa/src/common.h)
- [mldsa/src/config.h](mldsa/src/config.h)
- [mldsa/src/ct.h](mldsa/src/ct.h)
- [mldsa/src/fips202/fips202.c](mldsa/src/fips202/fips202.c)
- [mldsa/src/fips202/fips202x4.c](mldsa/src/fips202/fips202x4.c)
- [mldsa/src/ntt.h](mldsa/src/ntt.h)
Expand Down
1 change: 1 addition & 0 deletions examples/bring_your_own_fips202/mldsa_native/src/poly_kl.h
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@@ -0,0 +1 @@
../../../../mldsa/src/poly_kl.h
24 changes: 12 additions & 12 deletions integration/liboqs/ML-DSA-44_META.yml
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Expand Up @@ -31,10 +31,10 @@ implementations:
sources: integration/liboqs/config_c.h integration/liboqs/fips202_glue.h integration/liboqs/fips202x4_glue.h
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/ntt.c mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h
mldsa/src/params.h mldsa/src/poly.c mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c
mldsa/src/polyvec.h mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h
mldsa/src/reduce.h mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h
mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/params.h mldsa/src/poly.c mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h
mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c mldsa/src/prehash.h
mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h mldsa/src/sign.c
mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
- name: x86_64
version: FIPS204
folder_name: .
Expand All @@ -47,10 +47,10 @@ implementations:
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/native/api.h mldsa/src/native/meta.h mldsa/src/ntt.c
mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h mldsa/src/params.h mldsa/src/poly.c
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c
mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h
mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/native/x86_64
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h mldsa/src/polyvec.c mldsa/src/polyvec.h
mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h
mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h
mldsa/src/zetas.inc mldsa/src/native/x86_64
supported_platforms:
- architecture: x86_64
operating_systems:
Expand All @@ -72,10 +72,10 @@ implementations:
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/native/api.h mldsa/src/native/meta.h mldsa/src/ntt.c
mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h mldsa/src/params.h mldsa/src/poly.c
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c
mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h
mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/native/aarch64
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h mldsa/src/polyvec.c mldsa/src/polyvec.h
mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h
mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h
mldsa/src/zetas.inc mldsa/src/native/aarch64
supported_platforms:
- architecture: arm_8
operating_systems:
Expand Down
24 changes: 12 additions & 12 deletions integration/liboqs/ML-DSA-65_META.yml
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Expand Up @@ -31,10 +31,10 @@ implementations:
sources: integration/liboqs/config_c.h integration/liboqs/fips202_glue.h integration/liboqs/fips202x4_glue.h
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/ntt.c mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h
mldsa/src/params.h mldsa/src/poly.c mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c
mldsa/src/polyvec.h mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h
mldsa/src/reduce.h mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h
mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/params.h mldsa/src/poly.c mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h
mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c mldsa/src/prehash.h
mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h mldsa/src/sign.c
mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
- name: x86_64
version: FIPS204
folder_name: .
Expand All @@ -47,10 +47,10 @@ implementations:
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/native/api.h mldsa/src/native/meta.h mldsa/src/ntt.c
mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h mldsa/src/params.h mldsa/src/poly.c
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c
mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h
mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/native/x86_64
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h mldsa/src/polyvec.c mldsa/src/polyvec.h
mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h
mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h
mldsa/src/zetas.inc mldsa/src/native/x86_64
supported_platforms:
- architecture: x86_64
operating_systems:
Expand All @@ -72,10 +72,10 @@ implementations:
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/native/api.h mldsa/src/native/meta.h mldsa/src/ntt.c
mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h mldsa/src/params.h mldsa/src/poly.c
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c
mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h
mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/native/aarch64
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h mldsa/src/polyvec.c mldsa/src/polyvec.h
mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h
mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h
mldsa/src/zetas.inc mldsa/src/native/aarch64
supported_platforms:
- architecture: arm_8
operating_systems:
Expand Down
24 changes: 12 additions & 12 deletions integration/liboqs/ML-DSA-87_META.yml
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Expand Up @@ -31,10 +31,10 @@ implementations:
sources: integration/liboqs/config_c.h integration/liboqs/fips202_glue.h integration/liboqs/fips202x4_glue.h
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/ntt.c mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h
mldsa/src/params.h mldsa/src/poly.c mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c
mldsa/src/polyvec.h mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h
mldsa/src/reduce.h mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h
mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/params.h mldsa/src/poly.c mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h
mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c mldsa/src/prehash.h
mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h mldsa/src/sign.c
mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
- name: x86_64
version: FIPS204
folder_name: .
Expand All @@ -47,10 +47,10 @@ implementations:
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/native/api.h mldsa/src/native/meta.h mldsa/src/ntt.c
mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h mldsa/src/params.h mldsa/src/poly.c
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c
mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h
mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/native/x86_64
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h mldsa/src/polyvec.c mldsa/src/polyvec.h
mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h
mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h
mldsa/src/zetas.inc mldsa/src/native/x86_64
supported_platforms:
- architecture: x86_64
operating_systems:
Expand All @@ -71,10 +71,10 @@ implementations:
mldsa/src/cbmc.h mldsa/src/common.h mldsa/src/ct.c mldsa/src/ct.h mldsa/src/debug.c
mldsa/src/debug.h mldsa/src/native/api.h mldsa/src/native/meta.h mldsa/src/ntt.c
mldsa/src/ntt.h mldsa/src/packing.c mldsa/src/packing.h mldsa/src/params.h mldsa/src/poly.c
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/polyvec.c mldsa/src/polyvec.h mldsa/src/prehash.c
mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h mldsa/src/rounding.h
mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h mldsa/src/zetas.inc
mldsa/src/native/aarch64
mldsa/src/poly.h mldsa/src/poly_kl.c mldsa/src/poly_kl.h mldsa/src/polyvec.c mldsa/src/polyvec.h
mldsa/src/prehash.c mldsa/src/prehash.h mldsa/src/randombytes.h mldsa/src/reduce.h
mldsa/src/rounding.h mldsa/src/sign.c mldsa/src/sign.h mldsa/src/symmetric.h mldsa/src/sys.h
mldsa/src/zetas.inc mldsa/src/native/aarch64
supported_platforms:
- architecture: arm_8
operating_systems:
Expand Down
59 changes: 1 addition & 58 deletions mldsa/src/common.h
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Expand Up @@ -3,15 +3,6 @@
* SPDX-License-Identifier: Apache-2.0 OR ISC OR MIT
*/

/* References
* ==========
*
* - [FIPS204]
* FIPS 204 Module-Lattice-Based Digital Signature Standard
* National Institute of Standards and Technology
* https://csrc.nist.gov/pubs/fips/204/final
*/

#ifndef MLD_COMMON_H
#define MLD_COMMON_H

Expand Down Expand Up @@ -104,60 +95,12 @@
* all source files are included, even those that are not needed.
* Those files are appropriately guarded and will be empty when unneeded.
* The following is to avoid compilers complaining about this. */
#define MLD_EMPTY_CU(s) extern int MLD_NAMESPACE(empty_cu_##s);
#define MLD_EMPTY_CU(s) extern int MLD_NAMESPACE_KL(empty_cu_##s);

#if defined(MLD_CONFIG_USE_NATIVE_BACKEND_FIPS202)
#include MLD_CONFIG_FIPS202_BACKEND_FILE
#endif

#if !defined(__ASSEMBLER__)
#include <string.h>

/*************************************************
* Name: mld_zeroize
*
* Description: Force-zeroize a buffer.
* @[FIPS204, Section 3.6.3] Destruction of intermediate values.
*
* Arguments: void *ptr: pointer to buffer to be zeroed
* size_t len: Amount of bytes to be zeroed
**************************************************/
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
__contract__(
requires(memory_no_alias(ptr, len))
assigns(memory_slice(ptr, len))
);

#if defined(MLD_CONFIG_CUSTOM_ZEROIZE)
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
{
mld_zeroize_native(ptr, len);
}
#elif defined(MLD_SYS_WINDOWS)
#include <windows.h>
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
{
SecureZeroMemory(ptr, len);
}
#elif defined(MLD_HAVE_INLINE_ASM)
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
{
memset(ptr, 0, len);
/* This follows OpenSSL and seems sufficient to prevent the compiler
* from optimizing away the memset.
*
* If there was a reliable way to detect availability of memset_s(),
* that would be preferred. */
__asm__ __volatile__("" : : "r"(ptr) : "memory");
}
#else /* !MLD_CONFIG_CUSTOM_ZEROIZE && !MLD_SYS_WINDOWS && MLD_HAVE_INLINE_ASM \
*/
#error No plausibly-secure implementation of mld_zeroize available. Please provide your own using MLD_CONFIG_CUSTOM_ZEROIZE.
#endif /* !MLD_CONFIG_CUSTOM_ZEROIZE && !MLD_SYS_WINDOWS && \
!MLD_HAVE_INLINE_ASM */

#endif /* !__ASSEMBLER__ */

#if !defined(MLD_CONFIG_FIPS202_CUSTOM_HEADER)
#define MLD_FIPS202_HEADER_FILE "fips202/fips202.h"
#else
Expand Down
54 changes: 54 additions & 0 deletions mldsa/src/ct.h
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Expand Up @@ -7,6 +7,11 @@
/* References
* ==========
*
* - [FIPS204]
* FIPS 204 Module-Lattice-Based Digital Signature Standard
* National Institute of Standards and Technology
* https://csrc.nist.gov/pubs/fips/204/final
*
* - [libmceliece]
* libmceliece implementation of Classic McEliece
* Bernstein, Chou
Expand Down Expand Up @@ -232,5 +237,54 @@ __contract__(
return mld_ct_sel_int32(-x, x, mld_ct_cmask_neg_i32(x));
}

#if !defined(__ASSEMBLER__)
#include <string.h>

/*************************************************
* Name: mld_zeroize
*
* Description: Force-zeroize a buffer.
* @[FIPS204, Section 3.6.3] Destruction of intermediate
*values.
*
* Arguments: void *ptr: pointer to buffer to be zeroed
* size_t len: Amount of bytes to be zeroed
**************************************************/
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
__contract__(
requires(memory_no_alias(ptr, len))
assigns(memory_slice(ptr, len))
);

#if defined(MLD_CONFIG_CUSTOM_ZEROIZE)
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
{
mld_zeroize_native(ptr, len);
}
#elif defined(MLD_SYS_WINDOWS)
#include <windows.h>
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
{
SecureZeroMemory(ptr, len);
}
#elif defined(MLD_HAVE_INLINE_ASM)
static MLD_INLINE void mld_zeroize(void *ptr, size_t len)
{
memset(ptr, 0, len);
/* This follows OpenSSL and seems sufficient to prevent the compiler
* from optimizing away the memset.
*
* If there was a reliable way to detect availability of memset_s(),
* that would be preferred. */
__asm__ __volatile__("" : : "r"(ptr) : "memory");
}
#else /* !MLD_CONFIG_CUSTOM_ZEROIZE && !MLD_SYS_WINDOWS && MLD_HAVE_INLINE_ASM \
*/
#error No plausibly-secure implementation of mld_zeroize available. Please provide your own using MLD_CONFIG_CUSTOM_ZEROIZE.
#endif /* !MLD_CONFIG_CUSTOM_ZEROIZE && !MLD_SYS_WINDOWS && \
!MLD_HAVE_INLINE_ASM */

#endif /* !__ASSEMBLER__ */


#endif /* !MLD_CT_H */
5 changes: 5 additions & 0 deletions mldsa/src/fips202/fips202.c
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Expand Up @@ -34,8 +34,11 @@
#include <stddef.h>
#include <stdint.h>

#include "../common.h"
#include "../ct.h"
#include "fips202.h"
#include "keccakf1600.h"
#if !defined(MLD_CONFIG_MULTILEVEL_NO_SHARED)

#define NROUNDS 24

Expand Down Expand Up @@ -259,3 +262,5 @@ void mld_shake256(uint8_t *out, size_t outlen, const uint8_t *in, size_t inlen)
mld_shake256_squeeze(out, outlen, &state);
mld_shake256_release(&state);
}

#endif /* !MLD_CONFIG_MULTILEVEL_NO_SHARED */
4 changes: 4 additions & 0 deletions mldsa/src/fips202/fips202x4.c
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Expand Up @@ -14,8 +14,10 @@
*/

#include "../common.h"
#if !defined(MLD_CONFIG_MULTILEVEL_NO_SHARED)

#include <string.h>
#include "../ct.h"
#include "fips202.h"
#include "fips202x4.h"
#include "keccakf1600.h"
Expand Down Expand Up @@ -163,3 +165,5 @@ void mld_shake256x4_release(mld_shake256x4ctx *state)
/* @[FIPS204, Section 3.6.3] Destruction of intermediate values. */
mld_zeroize(state, sizeof(mld_shake256x4ctx));
}

#endif /* !MLD_CONFIG_MULTILEVEL_NO_SHARED */
7 changes: 7 additions & 0 deletions mldsa/src/packing.c
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,13 @@
#include "poly.h"
#include "polyvec.h"

/* Parameter set namespacing
* This is to facilitate building multiple instances
* of mldsa-native (e.g. with varying parameter sets)
* within a single compilation unit. */
#define mld_unpack_hints MLD_ADD_PARAM_SET(mld_unpack_hints)
/* End of parameter set namespacing */

MLD_INTERNAL_API
void mld_pack_pk(uint8_t pk[CRYPTO_PUBLICKEYBYTES],
const uint8_t rho[MLDSA_SEEDBYTES], const mld_polyveck *t1)
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