CBMC: Document and enforce 4 GiB limit of forall/exists quantifiers

[hanno-becker]

This commit ports pq-code-package/mlkem-native#1694.

The forall/exists macros in cbmc.h declared the quantified variable as unsigned, which on 64-bit platforms is 32 bits wide. When applied to a size_t bound, this silently truncated the upper bound: the quantifier only ranged over indices up to UINT32_MAX rather than the full size_t range, leaving the predicate unchecked for any larger indices.

mldsa-native does accept arbitrarily large buffers at the top-level API: the message, context, and pre-string passed into mld_sign / mld_sign_verify / mld_H / mld_shake256_absorb are bounded only by MLD_MAX_BUFFER_SIZE = SIZE_MAX >> 12 (~2^52 on 64-bit), and keccak_absorb walks them in a size_t loop. However, those buffers never feed into a quantified predicate -- they appear only as arguments to memory_no_alias / memory_slice and as scalar loop invariants.

Hence, the restricted scope of forall has no impact on the CBMC safety guarantees for mldsa-native's top-level API.

The only size_t-bounded quantifier in the entire tree is mld_ct_memcmp in ct.h, and it already requires len <= UINT16_MAX.

For now, make the limitation explicit rather than widening the quantifier:

• Explicitly cast the lower and upper bounds to uint32_t, so passing a wider bound triggers CBMC's conversion check rather than silently truncating.
• Declare the quantified variable as uint32_t (was unsigned) as a robustness improvement towards the implementation-defined size of unsigned.

Note: the upstream PR also tightened mlk_ct_cmov_zero's precondition to UINT32_MAX. mldsa-native has no equivalent function, so no analogous change is needed.

We may still want to consider widening the quantifier variable as a follow-up, but this is a more intrusive change that prior experiments have proved to significantly impact proof performance.

[oqs-bot]

CBMC Results (ML-DSA-44, REDUCE-RAM)

Full Results (198 proofs)

Proof	Status	Current	Previous	Change
**TOTAL**	✅	1464s	1502s	-2.5%
poly_pointwise_montgomery_c	✅	174s	189s	-8%
rej_uniform_native	✅	109s	112s	-3%
mld_invntt_layer	✅	106s	113s	-6%
polyvec_matrix_pointwise_montgomery_yvec	✅	94s	88s	+7%
mld_ct_memcmp	✅	70s	78s	-10%
mld_ntt_layer	✅	44s	45s	-2%
fqmul	✅	29s	30s	-3%
mld_attempt_signature_generation	✅	26s	26s	+0%
keccakf1600x4_permute_native	✅	22s	23s	-4%
rej_uniform	✅	20s	20s	+0%
rej_uniform_c	✅	19s	19s	+0%
sign_verify_internal	✅	19s	19s	+0%
polyeta_unpack	✅	18s	17s	+6%
mld_ntt_butterfly_block	✅	16s	15s	+7%
mld_check_pct	✅	14s	16s	-12%
keccak_absorb_once_x4	✅	13s	10s	+30%
poly_chknorm_c	✅	13s	15s	-13%
poly_uniform_eta_4x	✅	13s	13s	+0%
polyz_unpack_c	✅	13s	12s	+8%
polyvec_matrix_pointwise_montgomery_row	✅	11s	11s	+0%
poly_add	✅	10s	11s	-9%
polyt0_unpack	✅	10s	10s	+0%
polyveck_chknorm	✅	10s	11s	-9%
compute_pack_t0_t1	✅	9s	8s	+12%
keccak_absorb	✅	9s	6s	+50%
poly_decompose_c	✅	9s	8s	+12%
poly_invntt_tomont_c	✅	9s	8s	+12%
poly_power2round	✅	8s	8s	+0%
mld_keccakf1600_permute_c	✅	7s	7s	+0%
pointwise_acc_native_x86_64	✅	7s	4s	+75%
poly_caddq_c	✅	7s	7s	+0%
sign_keypair_internal	✅	7s	3s	+133%
sign_signature_internal	✅	7s	4s	+75%
mld_compute_pack_z	✅	6s	7s	-14%
poly_shiftl	✅	6s	8s	-25%
poly_uniform	✅	6s	3s	+100%
polyveck_invntt_tomont	✅	6s	4s	+50%
rej_eta_c	✅	6s	3s	+100%
sign_pk_from_sk	✅	6s	5s	+20%
sign_signature_pre_hash_shake256	✅	6s	7s	-14%
sign_verify_extmu	✅	6s	8s	-25%
keccak_init	✅	5s	2s	+150%
keccak_squeezeblocks_x4	✅	5s	4s	+25%
keccakf1600x4_extract_bytes_native	✅	5s	2s	+150%
keccakf1600x4_permute	✅	5s	3s	+67%
mld_prepare_domain_separation_prefix	✅	5s	4s	+25%
pointwise_acc_native_aarch64	✅	5s	6s	-17%
poly_challenge	✅	5s	5s	+0%
poly_chknorm_native_aarch64	✅	5s	3s	+67%
poly_ntt	✅	5s	1s	+400%
poly_pointwise_montgomery_native	✅	5s	2s	+150%
poly_uniform_gamma1_4x	✅	5s	2s	+150%
polyvec_matrix_expand	✅	5s	2s	+150%
rej_eta_native	✅	5s	4s	+25%
shake128x4_squeezeblocks	✅	5s	1s	+400%
sign	✅	5s	7s	-29%
sign_open	✅	5s	7s	-29%
caddq	✅	4s	5s	-20%
decompose	✅	4s	3s	+33%
keccak_f1600_x4_native_avx2	✅	4s	1s	+300%
keccakf1600_extract_bytes (big endian)	✅	4s	4s	+0%
keccakf1600x4_xor_bytes	✅	4s	3s	+33%
mld_polymat_expand_entry	✅	4s	3s	+33%
mld_sample_s1_s2_serial	✅	4s	3s	+33%
mld_value_barrier_i64	✅	4s	2s	+100%
ntt_native_x86_64	✅	4s	2s	+100%
pack_sk_rho_key_tr_s2	✅	4s	4s	+0%
pointwise_native_x86_64	✅	4s	2s	+100%
poly_caddq	✅	4s	3s	+33%
poly_chknorm_native	✅	4s	3s	+33%
poly_uniform_eta	✅	4s	4s	+0%
polyvec_matrix_expand_serial	✅	4s	4s	+0%
polyveck_decompose	✅	4s	4s	+0%
polyveck_pack_eta	✅	4s	2s	+100%
polyveck_pack_w1	✅	4s	2s	+100%
polyveck_reduce	✅	4s	5s	-20%
polyvecl_ntt	✅	4s	5s	-20%
polyvecl_uniform_gamma1	✅	4s	3s	+33%
polyvecl_unpack_eta	✅	4s	2s	+100%
polyw1_pack	✅	4s	3s	+33%
polyz_pack	✅	4s	2s	+100%
sign_signature_extmu	✅	4s	4s	+0%
sign_signature_pre_hash_internal	✅	4s	4s	+0%
sign_verify_pre_hash_internal	✅	4s	7s	-43%
sign_verify_pre_hash_shake256	✅	4s	6s	-33%
sys_check_capability	✅	4s	4s	+0%
unpack_sk	✅	4s	1s	+300%
use_hint	✅	4s	3s	+33%
fqscale	✅	3s	2s	+50%
intt_native_aarch64	✅	3s	2s	+50%
keccak_f1600_x4_native_aarch64_v8a_scalar_hybrid	✅	3s	2s	+50%
keccak_finalize	✅	3s	1s	+200%
keccakf1600_permute	✅	3s	2s	+50%
keccakf1600x4_extract_bytes	✅	3s	2s	+50%
make_hint	✅	3s	3s	+0%
mld_ct_cmask_nonzero_u32	✅	3s	2s	+50%
mld_ct_cmask_nonzero_u8	✅	3s	4s	-25%
mld_ct_get_optblocker_u8	✅	3s	2s	+50%
mld_h	✅	3s	3s	+0%
mld_keccakf1600_extract_bytes	✅	3s	4s	-25%
montgomery_reduce	✅	3s	2s	+50%
ntt_native_aarch64	✅	3s	7s	-57%
nttunpack_native_x86_64	✅	3s	2s	+50%
pack_sig_c	✅	3s	2s	+50%
pack_sig_z	✅	3s	3s	+0%
poly_chknorm	✅	3s	4s	-25%
poly_decompose	✅	3s	2s	+50%
poly_invntt_tomont	✅	3s	3s	+0%
poly_invntt_tomont_native	✅	3s	3s	+0%
poly_ntt_c	✅	3s	3s	+0%
poly_ntt_native	✅	3s	2s	+50%
poly_permute_bitrev_to_custom_optional	✅	3s	3s	+0%
poly_pointwise_montgomery	✅	3s	2s	+50%
poly_reduce	✅	3s	1s	+200%
poly_uniform_gamma1	✅	3s	3s	+0%
poly_use_hint_native	✅	3s	4s	-25%
poly_use_hint_native_aarch64	✅	3s	3s	+0%
polyt0_pack	✅	3s	4s	-25%
polyt1_pack	✅	3s	3s	+0%
polyveck_caddq	✅	3s	7s	-57%
polyveck_unpack_eta	✅	3s	4s	-25%
polyvecl_chknorm	✅	3s	5s	-40%
polyvecl_pointwise_acc_montgomery	✅	3s	3s	+0%
polyvecl_pointwise_acc_montgomery_c	✅	3s	3s	+0%
polyz_unpack_17_native_aarch64	✅	3s	4s	-25%
polyz_unpack_19_native_aarch64	✅	3s	4s	-25%
reduce32	✅	3s	4s	-25%
shake128_absorb	✅	3s	3s	+0%
shake128_init	✅	3s	4s	-25%
shake128_release	✅	3s	4s	-25%
shake256_absorb	✅	3s	3s	+0%
shake256_init	✅	3s	2s	+50%
shake256_release	✅	3s	5s	-40%
sig_unpack_hints	✅	3s	3s	+0%
sign_keypair	✅	3s	3s	+0%
sign_signature	✅	3s	4s	-25%
sign_verify	✅	3s	3s	+0%
sk_t0hat_get_poly	✅	3s	4s	-25%
unpack_sk_t0hat	✅	3s	2s	+50%
yvec_get_poly	✅	3s	1s	+200%
intt_native_x86_64	✅	2s	3s	-33%
keccak_f1600_x1_native_aarch64	✅	2s	3s	-33%
keccak_f1600_x1_native_aarch64_v84a	✅	2s	2s	+0%
keccak_f1600_x4_native_aarch64_v84a	✅	2s	3s	-33%
keccak_f1600_x4_native_aarch64_v8a_v84a_scalar_hybrid	✅	2s	3s	-33%
keccak_squeeze	✅	2s	4s	-50%
keccakf1600_xor_bytes	✅	2s	2s	+0%
keccakf1600_xor_bytes (big endian)	✅	2s	2s	+0%
mld_ct_abs_i32	✅	2s	1s	+100%
mld_ct_cmask_neg_i32	✅	2s	1s	+100%
mld_ct_get_optblocker_i64	✅	2s	3s	-33%
mld_ct_get_optblocker_u32	✅	2s	1s	+100%
mld_keccakf1600x4_extract_bytes_c	✅	2s	4s	-50%
mld_keccakf1600x4_xor_bytes_c	✅	2s	3s	-33%
mld_sample_s1_s2	✅	2s	3s	-33%
mld_value_barrier_u8	✅	2s	2s	+0%
pack_sig_h	✅	2s	3s	-33%
pack_sk_s1	✅	2s	4s	-50%
poly_caddq_native	✅	2s	2s	+0%
poly_caddq_native_aarch64	✅	2s	5s	-60%
poly_decompose_32_native_aarch64	✅	2s	3s	-33%
poly_decompose_88_native_aarch64	✅	2s	4s	-50%
poly_permute_bitrev_to_custom_optional_native	✅	2s	3s	-33%
poly_sub	✅	2s	4s	-50%
poly_use_hint	✅	2s	1s	+100%
poly_use_hint_c	✅	2s	2s	+0%
polyeta_pack	✅	2s	4s	-50%
polyt1_unpack	✅	2s	2s	+0%
polyveck_ntt	✅	2s	3s	-33%
polyvecl_pack_eta	✅	2s	3s	-33%
polyvecl_pointwise_acc_montgomery_native	✅	2s	5s	-60%
polyvecl_uniform_gamma1_serial	✅	2s	2s	+0%
polyz_unpack	✅	2s	3s	-33%
polyz_unpack_native	✅	2s	3s	-33%
rej_eta	✅	2s	2s	+0%
shake128_finalize	✅	2s	3s	-33%
shake128_squeeze	✅	2s	2s	+0%
shake256_finalize	✅	2s	3s	-33%
shake256_squeeze	✅	2s	3s	-33%
shake256x4_absorb_once	✅	2s	4s	-50%
shake256x4_squeezeblocks	✅	2s	2s	+0%
sk_s1hat_get_poly	✅	2s	3s	-33%
sk_s2hat_get_poly	✅	2s	5s	-60%
unpack_pk_t1	✅	2s	3s	-33%
unpack_sk_s1hat	✅	2s	2s	+0%
yvec_init	✅	2s	3s	-33%
keccakf1600_permute_native	✅	1s	4s	-75%
keccakf1600x4_xor_bytes_native	✅	1s	1s	+0%
mld_ct_sel_int32	✅	1s	6s	-83%
mld_value_barrier_u32	✅	1s	4s	-75%
pointwise_native_aarch64	✅	1s	4s	-75%
poly_decompose_native	✅	1s	3s	-67%
poly_uniform_4x	✅	1s	4s	-75%
polyvecl_unpack_z	✅	1s	3s	-67%
power2round	✅	1s	4s	-75%
shake128x4_absorb_once	✅	1s	3s	-67%
shake256	✅	1s	2s	-50%
unpack_sk_s2hat	✅	1s	4s	-75%

[oqs-bot]

CBMC Results (ML-DSA-65, REDUCE-RAM)

⚠️ Attention Required

Proof	Status	Current	Previous	Change
sign_verify_internal	⚠️	26s	17s	+53%

Full Results (198 proofs)

Proof	Status	Current	Previous	Change
**TOTAL**	✅	1535s	1532s	+0.2%
poly_pointwise_montgomery_c	✅	180s	178s	+1%
polyvec_matrix_pointwise_montgomery_yvec	✅	162s	158s	+3%
rej_uniform_native	✅	109s	110s	-1%
mld_invntt_layer	✅	104s	104s	+0%
mld_ct_memcmp	✅	71s	74s	-4%
mld_ntt_layer	✅	43s	42s	+2%
fqmul	✅	29s	29s	+0%
mld_attempt_signature_generation	✅	29s	27s	+7%
sign_verify_internal	⚠️	26s	17s	+53%
keccakf1600x4_permute_native	✅	22s	25s	-12%
rej_uniform	✅	20s	19s	+5%
polyvecl_chknorm	✅	19s	19s	+0%
rej_uniform_c	✅	19s	19s	+0%
mld_ntt_butterfly_block	✅	16s	15s	+7%
mld_check_pct	✅	14s	14s	+0%
poly_chknorm_c	✅	14s	14s	+0%
poly_uniform_eta_4x	✅	14s	10s	+40%
polyveck_decompose	✅	13s	14s	-7%
poly_add	✅	12s	12s	+0%
keccak_absorb_once_x4	✅	11s	9s	+22%
poly_invntt_tomont_c	✅	10s	6s	+67%
polyt0_unpack	✅	10s	12s	-17%
polyveck_caddq	✅	10s	9s	+11%
polyvec_matrix_pointwise_montgomery_row	✅	9s	8s	+12%
sign	✅	9s	7s	+29%
compute_pack_t0_t1	✅	8s	9s	-11%
poly_caddq_c	✅	8s	9s	-11%
polyz_unpack_c	✅	8s	6s	+33%
keccak_absorb	✅	7s	7s	+0%
mld_keccakf1600_permute_c	✅	7s	8s	-12%
mld_sample_s1_s2	✅	7s	7s	+0%
pointwise_acc_native_aarch64	✅	7s	4s	+75%
polyveck_reduce	✅	7s	6s	+17%
sign_pk_from_sk	✅	7s	7s	+0%
pointwise_acc_native_x86_64	✅	6s	9s	-33%
poly_chknorm_native	✅	6s	2s	+200%
poly_power2round	✅	6s	9s	-33%
poly_shiftl	✅	6s	7s	-14%
poly_use_hint_native	✅	6s	3s	+100%
polyvecl_ntt	✅	6s	10s	-40%
polyvecl_uniform_gamma1	✅	6s	3s	+100%
sign_keypair	✅	6s	3s	+100%
sign_signature	✅	6s	2s	+200%
sign_verify_pre_hash_internal	✅	6s	2s	+200%
keccak_squeezeblocks_x4	✅	5s	5s	+0%
keccakf1600x4_extract_bytes_native	✅	5s	5s	+0%
mld_compute_pack_z	✅	5s	6s	-17%
pack_sig_h	✅	5s	1s	+400%
poly_decompose_c	✅	5s	4s	+25%
poly_ntt_c	✅	5s	1s	+400%
poly_uniform	✅	5s	4s	+25%
poly_uniform_eta	✅	5s	5s	+0%
polyveck_invntt_tomont	✅	5s	6s	-17%
polyvecl_pack_eta	✅	5s	4s	+25%
polyvecl_pointwise_acc_montgomery_c	✅	5s	2s	+150%
reduce32	✅	5s	2s	+150%
decompose	✅	4s	3s	+33%
keccak_init	✅	4s	2s	+100%
keccakf1600x4_extract_bytes	✅	4s	3s	+33%
mld_ct_sel_int32	✅	4s	2s	+100%
mld_h	✅	4s	5s	-20%
mld_keccakf1600x4_xor_bytes_c	✅	4s	2s	+100%
mld_sample_s1_s2_serial	✅	4s	4s	+0%
pack_sig_c	✅	4s	2s	+100%
pack_sk_rho_key_tr_s2	✅	4s	4s	+0%
poly_caddq_native_aarch64	✅	4s	4s	+0%
poly_challenge	✅	4s	3s	+33%
poly_permute_bitrev_to_custom_optional_native	✅	4s	1s	+300%
poly_use_hint_native_aarch64	✅	4s	2s	+100%
polyeta_unpack	✅	4s	3s	+33%
polyvec_matrix_expand	✅	4s	2s	+100%
polyvec_matrix_expand_serial	✅	4s	2s	+100%
polyveck_chknorm	✅	4s	5s	-20%
polyvecl_pointwise_acc_montgomery_native	✅	4s	3s	+33%
polyz_unpack	✅	4s	3s	+33%
polyz_unpack_19_native_aarch64	✅	4s	5s	-20%
rej_eta_native	✅	4s	3s	+33%
shake128_init	✅	4s	2s	+100%
shake256_squeeze	✅	4s	3s	+33%
sign_keypair_internal	✅	4s	5s	-20%
sign_open	✅	4s	4s	+0%
sign_signature_internal	✅	4s	4s	+0%
sign_signature_pre_hash_internal	✅	4s	4s	+0%
sk_s1hat_get_poly	✅	4s	2s	+100%
unpack_sk	✅	4s	4s	+0%
fqscale	✅	3s	3s	+0%
intt_native_aarch64	✅	3s	3s	+0%
keccak_f1600_x1_native_aarch64_v84a	✅	3s	3s	+0%
keccakf1600_xor_bytes	✅	3s	1s	+200%
keccakf1600_xor_bytes (big endian)	✅	3s	3s	+0%
mld_ct_cmask_neg_i32	✅	3s	3s	+0%
mld_ct_cmask_nonzero_u8	✅	3s	2s	+50%
mld_ct_get_optblocker_i64	✅	3s	2s	+50%
mld_ct_get_optblocker_u32	✅	3s	3s	+0%
mld_keccakf1600_extract_bytes	✅	3s	2s	+50%
mld_value_barrier_u32	✅	3s	2s	+50%
mld_value_barrier_u8	✅	3s	2s	+50%
ntt_native_aarch64	✅	3s	4s	-25%
nttunpack_native_x86_64	✅	3s	3s	+0%
pack_sk_s1	✅	3s	2s	+50%
pointwise_native_aarch64	✅	3s	3s	+0%
poly_caddq_native	✅	3s	4s	-25%
poly_chknorm	✅	3s	4s	-25%
poly_decompose_32_native_aarch64	✅	3s	4s	-25%
poly_invntt_tomont	✅	3s	2s	+50%
poly_ntt	✅	3s	4s	-25%
poly_pointwise_montgomery	✅	3s	3s	+0%
poly_pointwise_montgomery_native	✅	3s	4s	-25%
poly_sub	✅	3s	2s	+50%
poly_uniform_4x	✅	3s	3s	+0%
polyeta_pack	✅	3s	4s	-25%
polyt0_pack	✅	3s	4s	-25%
polyt1_pack	✅	3s	3s	+0%
polyveck_pack_w1	✅	3s	4s	-25%
polyveck_unpack_eta	✅	3s	3s	+0%
polyvecl_pointwise_acc_montgomery	✅	3s	4s	-25%
polyvecl_uniform_gamma1_serial	✅	3s	3s	+0%
polyvecl_unpack_eta	✅	3s	4s	-25%
polyw1_pack	✅	3s	2s	+50%
polyz_unpack_17_native_aarch64	✅	3s	1s	+200%
power2round	✅	3s	2s	+50%
rej_eta_c	✅	3s	3s	+0%
shake128_squeeze	✅	3s	4s	-25%
shake256_absorb	✅	3s	3s	+0%
shake256x4_absorb_once	✅	3s	3s	+0%
shake256x4_squeezeblocks	✅	3s	2s	+50%
sign_signature_pre_hash_shake256	✅	3s	3s	+0%
sign_verify	✅	3s	4s	-25%
sign_verify_extmu	✅	3s	3s	+0%
sign_verify_pre_hash_shake256	✅	3s	3s	+0%
sk_s2hat_get_poly	✅	3s	3s	+0%
unpack_sk_s2hat	✅	3s	4s	-25%
unpack_sk_t0hat	✅	3s	3s	+0%
caddq	✅	2s	3s	-33%
intt_native_x86_64	✅	2s	1s	+100%
keccak_f1600_x4_native_aarch64_v84a	✅	2s	3s	-33%
keccak_f1600_x4_native_aarch64_v8a_scalar_hybrid	✅	2s	3s	-33%
keccak_f1600_x4_native_avx2	✅	2s	2s	+0%
keccakf1600_extract_bytes (big endian)	✅	2s	2s	+0%
keccakf1600_permute_native	✅	2s	2s	+0%
keccakf1600x4_permute	✅	2s	2s	+0%
keccakf1600x4_xor_bytes_native	✅	2s	1s	+100%
make_hint	✅	2s	4s	-50%
mld_ct_cmask_nonzero_u32	✅	2s	2s	+0%
mld_keccakf1600x4_extract_bytes_c	✅	2s	1s	+100%
mld_polymat_expand_entry	✅	2s	3s	-33%
mld_prepare_domain_separation_prefix	✅	2s	4s	-50%
montgomery_reduce	✅	2s	4s	-50%
ntt_native_x86_64	✅	2s	5s	-60%
pointwise_native_x86_64	✅	2s	1s	+100%
poly_caddq	✅	2s	3s	-33%
poly_chknorm_native_aarch64	✅	2s	4s	-50%
poly_decompose	✅	2s	2s	+0%
poly_decompose_native	✅	2s	2s	+0%
poly_ntt_native	✅	2s	5s	-60%
poly_permute_bitrev_to_custom_optional	✅	2s	3s	-33%
poly_reduce	✅	2s	6s	-67%
poly_uniform_gamma1	✅	2s	3s	-33%
poly_uniform_gamma1_4x	✅	2s	4s	-50%
poly_use_hint	✅	2s	3s	-33%
poly_use_hint_c	✅	2s	2s	+0%
polyt1_unpack	✅	2s	3s	-33%
polyveck_ntt	✅	2s	4s	-50%
polyveck_pack_eta	✅	2s	2s	+0%
polyz_pack	✅	2s	2s	+0%
rej_eta	✅	2s	3s	-33%
shake128_absorb	✅	2s	2s	+0%
shake128_release	✅	2s	3s	-33%
shake128x4_absorb_once	✅	2s	2s	+0%
shake128x4_squeezeblocks	✅	2s	3s	-33%
shake256	✅	2s	3s	-33%
shake256_finalize	✅	2s	3s	-33%
shake256_release	✅	2s	1s	+100%
sig_unpack_hints	✅	2s	2s	+0%
sign_signature_extmu	✅	2s	5s	-60%
sk_t0hat_get_poly	✅	2s	6s	-67%
sys_check_capability	✅	2s	4s	-50%
unpack_pk_t1	✅	2s	2s	+0%
unpack_sk_s1hat	✅	2s	5s	-60%
use_hint	✅	2s	2s	+0%
yvec_get_poly	✅	2s	5s	-60%
yvec_init	✅	2s	3s	-33%
keccak_f1600_x1_native_aarch64	✅	1s	1s	+0%
keccak_f1600_x4_native_aarch64_v8a_v84a_scalar_hybrid	✅	1s	2s	-50%
keccak_finalize	✅	1s	3s	-67%
keccak_squeeze	✅	1s	2s	-50%
keccakf1600_permute	✅	1s	4s	-75%
keccakf1600x4_xor_bytes	✅	1s	2s	-50%
mld_ct_abs_i32	✅	1s	5s	-80%
mld_ct_get_optblocker_u8	✅	1s	4s	-75%
mld_value_barrier_i64	✅	1s	2s	-50%
pack_sig_z	✅	1s	3s	-67%
poly_decompose_88_native_aarch64	✅	1s	2s	-50%
poly_invntt_tomont_native	✅	1s	4s	-75%
polyvecl_unpack_z	✅	1s	4s	-75%
polyz_unpack_native	✅	1s	2s	-50%
shake128_finalize	✅	1s	3s	-67%
shake256_init	✅	1s	1s	+0%

[oqs-bot]

CBMC Results (ML-DSA-87, REDUCE-RAM)

Full Results (198 proofs)

Proof	Status	Current	Previous	Change
**TOTAL**	✅	1586s	1514s	+4.8%
poly_pointwise_montgomery_c	✅	194s	175s	+11%
polyvec_matrix_pointwise_montgomery_yvec	✅	134s	131s	+2%
rej_uniform_native	✅	115s	108s	+6%
mld_invntt_layer	✅	110s	104s	+6%
mld_ct_memcmp	✅	72s	75s	-4%
mld_ntt_layer	✅	43s	45s	-4%
sign_verify_internal	✅	36s	40s	-10%
fqmul	✅	29s	27s	+7%
mld_attempt_signature_generation	✅	27s	27s	+0%
keccakf1600x4_permute_native	✅	21s	21s	+0%
rej_uniform	✅	21s	19s	+11%
rej_uniform_c	✅	20s	17s	+18%
mld_ntt_butterfly_block	✅	16s	15s	+7%
polyeta_unpack	✅	16s	16s	+0%
poly_chknorm_c	✅	14s	15s	-7%
mld_check_pct	✅	13s	11s	+18%
polyveck_decompose	✅	13s	16s	-19%
poly_add	✅	12s	10s	+20%
poly_uniform_eta_4x	✅	12s	13s	-8%
keccak_absorb_once_x4	✅	11s	10s	+10%
polyt0_unpack	✅	11s	9s	+22%
poly_invntt_tomont_c	✅	10s	9s	+11%
polyvec_matrix_pointwise_montgomery_row	✅	10s	8s	+25%
compute_pack_t0_t1	✅	9s	6s	+50%
polyvecl_ntt	✅	9s	8s	+12%
polyz_unpack_c	✅	8s	8s	+0%
sign_signature_pre_hash_shake256	✅	8s	3s	+167%
keccak_absorb	✅	7s	7s	+0%
pointwise_acc_native_aarch64	✅	7s	7s	+0%
pointwise_acc_native_x86_64	✅	7s	8s	-12%
poly_caddq_c	✅	7s	8s	-12%
poly_ntt	✅	7s	4s	+75%
poly_power2round	✅	7s	10s	-30%
poly_shiftl	✅	7s	8s	-12%
polyveck_reduce	✅	7s	8s	-12%
sign	✅	7s	11s	-36%
unpack_pk_t1	✅	7s	3s	+133%
make_hint	✅	6s	2s	+200%
mld_ct_cmask_nonzero_u8	✅	6s	3s	+100%
mld_keccakf1600_permute_c	✅	6s	6s	+0%
mld_sample_s1_s2_serial	✅	6s	5s	+20%
mld_value_barrier_u32	✅	6s	1s	+500%
poly_challenge	✅	6s	3s	+100%
poly_ntt_c	✅	6s	1s	+500%
polyveck_chknorm	✅	6s	4s	+50%
polyveck_invntt_tomont	✅	6s	7s	-14%
shake256_squeeze	✅	6s	4s	+50%
sign_signature_extmu	✅	6s	5s	+20%
yvec_get_poly	✅	6s	4s	+50%
keccak_f1600_x4_native_aarch64_v8a_scalar_hybrid	✅	5s	2s	+150%
keccak_squeezeblocks_x4	✅	5s	5s	+0%
keccakf1600x4_permute	✅	5s	2s	+150%
mld_compute_pack_z	✅	5s	6s	-17%
mld_sample_s1_s2	✅	5s	5s	+0%
montgomery_reduce	✅	5s	4s	+25%
poly_caddq_native_aarch64	✅	5s	3s	+67%
poly_decompose_c	✅	5s	5s	+0%
poly_use_hint_native_aarch64	✅	5s	2s	+150%
polyveck_caddq	✅	5s	7s	-29%
polyveck_unpack_eta	✅	5s	4s	+25%
rej_eta_c	✅	5s	3s	+67%
rej_eta_native	✅	5s	6s	-17%
shake128_init	✅	5s	2s	+150%
sign_open	✅	5s	8s	-38%
sign_pk_from_sk	✅	5s	6s	-17%
sign_signature_internal	✅	5s	4s	+25%
sign_verify_pre_hash_shake256	✅	5s	4s	+25%
caddq	✅	4s	3s	+33%
keccak_init	✅	4s	2s	+100%
keccakf1600_extract_bytes (big endian)	✅	4s	4s	+0%
keccakf1600_permute	✅	4s	2s	+100%
keccakf1600_permute_native	✅	4s	4s	+0%
keccakf1600x4_extract_bytes	✅	4s	2s	+100%
mld_keccakf1600x4_extract_bytes_c	✅	4s	3s	+33%
pack_sk_s1	✅	4s	4s	+0%
poly_caddq_native	✅	4s	2s	+100%
poly_chknorm	✅	4s	4s	+0%
poly_invntt_tomont	✅	4s	2s	+100%
poly_uniform_eta	✅	4s	4s	+0%
poly_use_hint_c	✅	4s	2s	+100%
polyveck_pack_eta	✅	4s	2s	+100%
polyveck_pack_w1	✅	4s	2s	+100%
polyvecl_chknorm	✅	4s	3s	+33%
polyvecl_unpack_eta	✅	4s	2s	+100%
polyvecl_unpack_z	✅	4s	2s	+100%
polyz_unpack	✅	4s	2s	+100%
polyz_unpack_19_native_aarch64	✅	4s	3s	+33%
polyz_unpack_native	✅	4s	3s	+33%
reduce32	✅	4s	1s	+300%
sig_unpack_hints	✅	4s	3s	+33%
sign_keypair	✅	4s	3s	+33%
sign_keypair_internal	✅	4s	4s	+0%
sign_verify	✅	4s	4s	+0%
sign_verify_extmu	✅	4s	3s	+33%
sk_t0hat_get_poly	✅	4s	2s	+100%
intt_native_x86_64	✅	3s	3s	+0%
keccak_f1600_x1_native_aarch64_v84a	✅	3s	3s	+0%
keccak_f1600_x4_native_avx2	✅	3s	2s	+50%
keccak_finalize	✅	3s	2s	+50%
keccakf1600x4_extract_bytes_native	✅	3s	3s	+0%
keccakf1600x4_xor_bytes	✅	3s	2s	+50%
keccakf1600x4_xor_bytes_native	✅	3s	1s	+200%
mld_ct_cmask_neg_i32	✅	3s	2s	+50%
mld_ct_cmask_nonzero_u32	✅	3s	4s	-25%
mld_ct_get_optblocker_i64	✅	3s	1s	+200%
mld_ct_get_optblocker_u32	✅	3s	2s	+50%
mld_ct_sel_int32	✅	3s	3s	+0%
mld_h	✅	3s	3s	+0%
mld_prepare_domain_separation_prefix	✅	3s	3s	+0%
mld_value_barrier_i64	✅	3s	4s	-25%
mld_value_barrier_u8	✅	3s	4s	-25%
ntt_native_aarch64	✅	3s	5s	-40%
ntt_native_x86_64	✅	3s	2s	+50%
nttunpack_native_x86_64	✅	3s	3s	+0%
pack_sig_c	✅	3s	4s	-25%
pack_sig_h	✅	3s	6s	-50%
pointwise_native_aarch64	✅	3s	3s	+0%
pointwise_native_x86_64	✅	3s	3s	+0%
poly_decompose	✅	3s	1s	+200%
poly_decompose_88_native_aarch64	✅	3s	2s	+50%
poly_invntt_tomont_native	✅	3s	2s	+50%
poly_ntt_native	✅	3s	4s	-25%
poly_permute_bitrev_to_custom_optional_native	✅	3s	3s	+0%
poly_reduce	✅	3s	5s	-40%
poly_sub	✅	3s	3s	+0%
poly_uniform_4x	✅	3s	4s	-25%
poly_uniform_gamma1_4x	✅	3s	2s	+50%
polyeta_pack	✅	3s	3s	+0%
polyt0_pack	✅	3s	4s	-25%
polyveck_ntt	✅	3s	2s	+50%
polyvecl_pointwise_acc_montgomery_c	✅	3s	2s	+50%
polyvecl_uniform_gamma1	✅	3s	2s	+50%
polyw1_pack	✅	3s	2s	+50%
polyz_pack	✅	3s	2s	+50%
shake128_release	✅	3s	1s	+200%
shake256_absorb	✅	3s	2s	+50%
shake256_finalize	✅	3s	3s	+0%
sign_signature	✅	3s	5s	-40%
sign_signature_pre_hash_internal	✅	3s	4s	-25%
sign_verify_pre_hash_internal	✅	3s	3s	+0%
sk_s2hat_get_poly	✅	3s	4s	-25%
sys_check_capability	✅	3s	5s	-40%
unpack_sk_s2hat	✅	3s	4s	-25%
unpack_sk_t0hat	✅	3s	3s	+0%
use_hint	✅	3s	3s	+0%
decompose	✅	2s	2s	+0%
fqscale	✅	2s	2s	+0%
intt_native_aarch64	✅	2s	3s	-33%
keccak_f1600_x1_native_aarch64	✅	2s	3s	-33%
keccak_f1600_x4_native_aarch64_v84a	✅	2s	1s	+100%
keccak_squeeze	✅	2s	3s	-33%
keccakf1600_xor_bytes	✅	2s	1s	+100%
mld_ct_get_optblocker_u8	✅	2s	3s	-33%
mld_keccakf1600_extract_bytes	✅	2s	5s	-60%
mld_polymat_expand_entry	✅	2s	3s	-33%
pack_sig_z	✅	2s	4s	-50%
pack_sk_rho_key_tr_s2	✅	2s	3s	-33%
poly_caddq	✅	2s	2s	+0%
poly_chknorm_native	✅	2s	4s	-50%
poly_chknorm_native_aarch64	✅	2s	2s	+0%
poly_decompose_32_native_aarch64	✅	2s	2s	+0%
poly_decompose_native	✅	2s	3s	-33%
poly_permute_bitrev_to_custom_optional	✅	2s	3s	-33%
poly_pointwise_montgomery	✅	2s	3s	-33%
poly_pointwise_montgomery_native	✅	2s	4s	-50%
poly_uniform	✅	2s	5s	-60%
poly_uniform_gamma1	✅	2s	2s	+0%
poly_use_hint	✅	2s	1s	+100%
poly_use_hint_native	✅	2s	3s	-33%
polyt1_pack	✅	2s	2s	+0%
polyt1_unpack	✅	2s	2s	+0%
polyvec_matrix_expand	✅	2s	2s	+0%
polyvec_matrix_expand_serial	✅	2s	4s	-50%
polyvecl_pack_eta	✅	2s	4s	-50%
polyvecl_pointwise_acc_montgomery	✅	2s	2s	+0%
polyvecl_pointwise_acc_montgomery_native	✅	2s	3s	-33%
polyvecl_uniform_gamma1_serial	✅	2s	3s	-33%
polyz_unpack_17_native_aarch64	✅	2s	2s	+0%
rej_eta	✅	2s	4s	-50%
shake128_absorb	✅	2s	3s	-33%
shake128_finalize	✅	2s	2s	+0%
shake128_squeeze	✅	2s	3s	-33%
shake128x4_absorb_once	✅	2s	2s	+0%
shake256_init	✅	2s	3s	-33%
shake256x4_absorb_once	✅	2s	3s	-33%
shake256x4_squeezeblocks	✅	2s	2s	+0%
sk_s1hat_get_poly	✅	2s	3s	-33%
unpack_sk	✅	2s	2s	+0%
unpack_sk_s1hat	✅	2s	2s	+0%
yvec_init	✅	2s	2s	+0%
keccak_f1600_x4_native_aarch64_v8a_v84a_scalar_hybrid	✅	1s	3s	-67%
keccakf1600_xor_bytes (big endian)	✅	1s	2s	-50%
mld_ct_abs_i32	✅	1s	3s	-67%
mld_keccakf1600x4_xor_bytes_c	✅	1s	3s	-67%
power2round	✅	1s	3s	-67%
shake128x4_squeezeblocks	✅	1s	5s	-80%
shake256	✅	1s	3s	-67%
shake256_release	✅	1s	2s	-50%

[oqs-bot]

CBMC Results (ML-DSA-44)

Full Results (198 proofs)

Proof	Status	Current	Previous	Change
**TOTAL**	✅	1683s	1698s	-0.9%
polyvecl_pointwise_acc_montgomery_c	✅	246s	257s	-4%
rej_uniform_native	✅	121s	124s	-2%
poly_pointwise_montgomery_c	✅	92s	96s	-4%
mld_invntt_layer	✅	90s	95s	-5%
mld_ct_memcmp	✅	68s	80s	-15%
mld_attempt_signature_generation	✅	53s	56s	-5%
mld_ntt_layer	✅	44s	42s	+5%
sign_signature_internal	✅	28s	29s	-3%
fqmul	✅	27s	28s	-4%
polyvec_matrix_expand	✅	27s	28s	-4%
sign_verify_internal	✅	27s	27s	+0%
keccakf1600x4_permute_native	✅	24s	22s	+9%
polyvec_matrix_pointwise_montgomery_yvec	✅	17s	14s	+21%
polyvecl_chknorm	✅	17s	16s	+6%
rej_uniform_c	✅	17s	18s	-6%
mld_check_pct	✅	16s	16s	+0%
mld_ntt_butterfly_block	✅	15s	17s	-12%
polyt0_unpack	✅	15s	13s	+15%
rej_uniform	✅	15s	18s	-17%
compute_pack_t0_t1	✅	14s	14s	+0%
poly_chknorm_c	✅	14s	16s	-12%
poly_uniform_eta_4x	✅	13s	16s	-19%
polyvec_matrix_expand_serial	✅	13s	9s	+44%
poly_power2round	✅	12s	7s	+71%
poly_uniform_4x	✅	12s	13s	-8%
polyz_unpack_c	✅	12s	14s	-14%
polyeta_unpack	✅	11s	13s	-15%
poly_add	✅	10s	12s	-17%
sign	✅	10s	6s	+67%
keccak_absorb_once_x4	✅	9s	8s	+12%
keccak_absorb	✅	8s	7s	+14%
poly_decompose_c	✅	8s	9s	-11%
polyveck_decompose	✅	8s	7s	+14%
mld_ct_cmask_nonzero_u32	✅	7s	4s	+75%
ntt_native_aarch64	✅	7s	2s	+250%
poly_challenge	✅	7s	4s	+75%
poly_invntt_tomont_c	✅	7s	8s	-12%
sign_verify_pre_hash_shake256	✅	7s	4s	+75%
fqscale	✅	6s	2s	+200%
mld_compute_pack_z	✅	6s	6s	+0%
pointwise_native_x86_64	✅	6s	4s	+50%
poly_uniform	✅	6s	2s	+200%
sign_verify_extmu	✅	6s	3s	+100%
decompose	✅	5s	3s	+67%
intt_native_x86_64	✅	5s	3s	+67%
keccak_squeezeblocks_x4	✅	5s	7s	-29%
keccakf1600x4_extract_bytes	✅	5s	3s	+67%
mld_keccakf1600_extract_bytes	✅	5s	1s	+400%
mld_keccakf1600_permute_c	✅	5s	9s	-44%
pack_sk_rho_key_tr_s2	✅	5s	5s	+0%
pointwise_acc_native_x86_64	✅	5s	4s	+25%
pointwise_native_aarch64	✅	5s	5s	+0%
poly_caddq_native_aarch64	✅	5s	2s	+150%
poly_decompose_88_native_aarch64	✅	5s	2s	+150%
poly_decompose_native	✅	5s	3s	+67%
poly_use_hint_c	✅	5s	3s	+67%
polyveck_chknorm	✅	5s	4s	+25%
polyveck_invntt_tomont	✅	5s	3s	+67%
polyveck_ntt	✅	5s	2s	+150%
polyvecl_ntt	✅	5s	5s	+0%
polyvecl_pointwise_acc_montgomery_native	✅	5s	3s	+67%
polyz_unpack_19_native_aarch64	✅	5s	2s	+150%
shake128_absorb	✅	5s	2s	+150%
shake128x4_absorb_once	✅	5s	2s	+150%
shake256_init	✅	5s	5s	+0%
sign_keypair	✅	5s	5s	+0%
sign_open	✅	5s	6s	-17%
sign_signature_pre_hash_shake256	✅	5s	6s	-17%
sk_s1hat_get_poly	✅	5s	2s	+150%
intt_native_aarch64	✅	4s	3s	+33%
keccak_f1600_x4_native_aarch64_v8a_v84a_scalar_hybrid	✅	4s	2s	+100%
keccak_f1600_x4_native_avx2	✅	4s	4s	+0%
keccakf1600_permute_native	✅	4s	4s	+0%
keccakf1600x4_permute	✅	4s	4s	+0%
mld_ct_abs_i32	✅	4s	2s	+100%
mld_ct_cmask_nonzero_u8	✅	4s	4s	+0%
mld_ct_get_optblocker_i64	✅	4s	2s	+100%
mld_sample_s1_s2	✅	4s	4s	+0%
mld_value_barrier_u8	✅	4s	3s	+33%
nttunpack_native_x86_64	✅	4s	2s	+100%
pointwise_acc_native_aarch64	✅	4s	5s	-20%
poly_chknorm	✅	4s	2s	+100%
poly_chknorm_native_aarch64	✅	4s	3s	+33%
poly_invntt_tomont	✅	4s	5s	-20%
poly_invntt_tomont_native	✅	4s	2s	+100%
poly_pointwise_montgomery_native	✅	4s	4s	+0%
poly_sub	✅	4s	2s	+100%
poly_use_hint_native_aarch64	✅	4s	3s	+33%
polyt0_pack	✅	4s	3s	+33%
polyt1_unpack	✅	4s	5s	-20%
polyvecl_uniform_gamma1	✅	4s	2s	+100%
polyvecl_uniform_gamma1_serial	✅	4s	3s	+33%
polyvecl_unpack_z	✅	4s	3s	+33%
polyz_unpack_native	✅	4s	3s	+33%
reduce32	✅	4s	3s	+33%
shake256_release	✅	4s	2s	+100%
sig_unpack_hints	✅	4s	2s	+100%
sign_pk_from_sk	✅	4s	6s	-33%
sign_verify	✅	4s	6s	-33%
sign_verify_pre_hash_internal	✅	4s	2s	+100%
sys_check_capability	✅	4s	2s	+100%
unpack_sk	✅	4s	3s	+33%
unpack_sk_t0hat	✅	4s	5s	-20%
yvec_init	✅	4s	3s	+33%
keccak_finalize	✅	3s	4s	-25%
keccak_init	✅	3s	3s	+0%
keccak_squeeze	✅	3s	2s	+50%
keccakf1600_permute	✅	3s	2s	+50%
keccakf1600x4_extract_bytes_native	✅	3s	4s	-25%
mld_prepare_domain_separation_prefix	✅	3s	3s	+0%
mld_sample_s1_s2_serial	✅	3s	6s	-50%
mld_value_barrier_u32	✅	3s	5s	-40%
montgomery_reduce	✅	3s	3s	+0%
ntt_native_x86_64	✅	3s	2s	+50%
pack_sig_c	✅	3s	2s	+50%
pack_sig_h	✅	3s	2s	+50%
pack_sk_s1	✅	3s	2s	+50%
poly_caddq	✅	3s	3s	+0%
poly_caddq_native	✅	3s	5s	-40%
poly_chknorm_native	✅	3s	4s	-25%
poly_decompose	✅	3s	4s	-25%
poly_decompose_32_native_aarch64	✅	3s	2s	+50%
poly_ntt_c	✅	3s	3s	+0%
poly_reduce	✅	3s	4s	-25%
poly_shiftl	✅	3s	4s	-25%
poly_uniform_eta	✅	3s	5s	-40%
poly_uniform_gamma1_4x	✅	3s	5s	-40%
poly_use_hint	✅	3s	2s	+50%
polyeta_pack	✅	3s	2s	+50%
polyvec_matrix_pointwise_montgomery_row	✅	3s	2s	+50%
polyveck_caddq	✅	3s	2s	+50%
polyveck_pack_eta	✅	3s	2s	+50%
polyveck_reduce	✅	3s	2s	+50%
polyvecl_pointwise_acc_montgomery	✅	3s	6s	-50%
polyvecl_unpack_eta	✅	3s	2s	+50%
polyz_unpack	✅	3s	3s	+0%
power2round	✅	3s	3s	+0%
rej_eta	✅	3s	2s	+50%
rej_eta_c	✅	3s	8s	-62%
rej_eta_native	✅	3s	5s	-40%
shake128_release	✅	3s	2s	+50%
shake128x4_squeezeblocks	✅	3s	2s	+50%
shake256	✅	3s	3s	+0%
shake256_absorb	✅	3s	5s	-40%
shake256_squeeze	✅	3s	2s	+50%
shake256x4_absorb_once	✅	3s	4s	-25%
shake256x4_squeezeblocks	✅	3s	2s	+50%
sign_keypair_internal	✅	3s	6s	-50%
sign_signature	✅	3s	4s	-25%
sign_signature_extmu	✅	3s	3s	+0%
sign_signature_pre_hash_internal	✅	3s	7s	-57%
sk_s2hat_get_poly	✅	3s	2s	+50%
sk_t0hat_get_poly	✅	3s	3s	+0%
unpack_pk_t1	✅	3s	2s	+50%
unpack_sk_s1hat	✅	3s	1s	+200%
unpack_sk_s2hat	✅	3s	3s	+0%
caddq	✅	2s	3s	-33%
keccak_f1600_x1_native_aarch64_v84a	✅	2s	3s	-33%
keccak_f1600_x4_native_aarch64_v8a_scalar_hybrid	✅	2s	2s	+0%
keccakf1600_xor_bytes	✅	2s	3s	-33%
keccakf1600_xor_bytes (big endian)	✅	2s	2s	+0%
keccakf1600x4_xor_bytes	✅	2s	5s	-60%
keccakf1600x4_xor_bytes_native	✅	2s	2s	+0%
make_hint	✅	2s	6s	-67%
mld_ct_get_optblocker_u32	✅	2s	3s	-33%
mld_ct_get_optblocker_u8	✅	2s	3s	-33%
mld_h	✅	2s	6s	-67%
mld_keccakf1600x4_extract_bytes_c	✅	2s	3s	-33%
mld_keccakf1600x4_xor_bytes_c	✅	2s	2s	+0%
mld_polymat_expand_entry	✅	2s	3s	-33%
mld_value_barrier_i64	✅	2s	1s	+100%
pack_sig_z	✅	2s	4s	-50%
poly_caddq_c	✅	2s	5s	-60%
poly_ntt	✅	2s	3s	-33%
poly_ntt_native	✅	2s	4s	-50%
poly_permute_bitrev_to_custom_optional	✅	2s	2s	+0%
poly_permute_bitrev_to_custom_optional_native	✅	2s	2s	+0%
poly_pointwise_montgomery	✅	2s	2s	+0%
poly_uniform_gamma1	✅	2s	4s	-50%
poly_use_hint_native	✅	2s	3s	-33%
polyt1_pack	✅	2s	4s	-50%
polyveck_pack_w1	✅	2s	5s	-60%
polyveck_unpack_eta	✅	2s	4s	-50%
polyvecl_pack_eta	✅	2s	1s	+100%
polyw1_pack	✅	2s	2s	+0%
polyz_pack	✅	2s	2s	+0%
polyz_unpack_17_native_aarch64	✅	2s	4s	-50%
shake128_finalize	✅	2s	5s	-60%
shake128_init	✅	2s	4s	-50%
shake128_squeeze	✅	2s	4s	-50%
shake256_finalize	✅	2s	2s	+0%
use_hint	✅	2s	3s	-33%
yvec_get_poly	✅	2s	3s	-33%
keccak_f1600_x1_native_aarch64	✅	1s	4s	-75%
keccak_f1600_x4_native_aarch64_v84a	✅	1s	2s	-50%
keccakf1600_extract_bytes (big endian)	✅	1s	2s	-50%
mld_ct_cmask_neg_i32	✅	1s	2s	-50%
mld_ct_sel_int32	✅	1s	2s	-50%

[oqs-bot]

CBMC Results (ML-DSA-87)

⚠️ Attention Required

Proof	Status	Current	Previous	Change
sign_verify_internal	⚠️	92s	60s	+53%

Full Results (198 proofs)

Proof	Status	Current	Previous	Change
**TOTAL**	✅	2099s	1932s	+8.6%
polyvecl_pointwise_acc_montgomery_c	✅	284s	237s	+20%
polyvec_matrix_expand	✅	180s	170s	+6%
rej_uniform_native	✅	128s	118s	+8%
mld_attempt_signature_generation	✅	104s	96s	+8%
poly_pointwise_montgomery_c	✅	102s	93s	+10%
mld_invntt_layer	✅	99s	90s	+10%
sign_verify_internal	⚠️	92s	60s	+53%
mld_ct_memcmp	✅	75s	71s	+6%
sign_signature_internal	✅	54s	52s	+4%
mld_ntt_layer	✅	43s	42s	+2%
polyvec_matrix_expand_serial	✅	38s	36s	+6%
fqmul	✅	30s	27s	+11%
compute_pack_t0_t1	✅	25s	25s	+0%
polyvec_matrix_pointwise_montgomery_yvec	✅	24s	21s	+14%
keccakf1600x4_permute_native	✅	22s	25s	-12%
rej_uniform_c	✅	19s	18s	+6%
mld_ntt_butterfly_block	✅	18s	17s	+6%
poly_uniform_eta_4x	✅	16s	15s	+7%
polyt0_unpack	✅	16s	12s	+33%
rej_uniform	✅	16s	16s	+0%
mld_check_pct	✅	15s	16s	-6%
poly_chknorm_c	✅	15s	16s	-6%
polyeta_unpack	✅	13s	11s	+18%
polyveck_ntt	✅	13s	11s	+18%
poly_add	✅	12s	10s	+20%
poly_uniform_4x	✅	12s	10s	+20%
polyveck_decompose	✅	12s	12s	+0%
keccak_absorb_once_x4	✅	11s	11s	+0%
poly_invntt_tomont_c	✅	10s	7s	+43%
poly_power2round	✅	9s	9s	+0%
polyveck_chknorm	✅	9s	6s	+50%
polyveck_invntt_tomont	✅	9s	8s	+12%
sign	✅	9s	8s	+12%
keccak_absorb	✅	8s	6s	+33%
mld_compute_pack_z	✅	8s	8s	+0%
polyvecl_ntt	✅	8s	5s	+60%
sign_pk_from_sk	✅	8s	5s	+60%
mld_keccakf1600_permute_c	✅	7s	8s	-12%
mld_sample_s1_s2_serial	✅	7s	4s	+75%
pointwise_acc_native_aarch64	✅	7s	8s	-12%
polyveck_caddq	✅	7s	7s	+0%
fqscale	✅	6s	4s	+50%
mld_h	✅	6s	2s	+200%
poly_caddq_c	✅	6s	4s	+50%
polyvecl_chknorm	✅	6s	4s	+50%
polyz_unpack_c	✅	6s	6s	+0%
sign_keypair_internal	✅	6s	5s	+20%
sign_verify	✅	6s	6s	+0%
intt_native_aarch64	✅	5s	2s	+150%
intt_native_x86_64	✅	5s	4s	+25%
mld_sample_s1_s2	✅	5s	7s	-29%
ntt_native_aarch64	✅	5s	2s	+150%
pack_sig_h	✅	5s	1s	+400%
pack_sk_rho_key_tr_s2	✅	5s	4s	+25%
pointwise_acc_native_x86_64	✅	5s	7s	-29%
poly_caddq_native_aarch64	✅	5s	3s	+67%
poly_challenge	✅	5s	3s	+67%
poly_decompose_c	✅	5s	4s	+25%
poly_invntt_tomont_native	✅	5s	5s	+0%
poly_ntt_native	✅	5s	4s	+25%
poly_use_hint_c	✅	5s	5s	+0%
poly_use_hint_native_aarch64	✅	5s	5s	+0%
polyveck_unpack_eta	✅	5s	3s	+67%
rej_eta_c	✅	5s	4s	+25%
shake128_release	✅	5s	4s	+25%
shake256_squeeze	✅	5s	3s	+67%
sign_keypair	✅	5s	4s	+25%
sign_open	✅	5s	4s	+25%
sk_s1hat_get_poly	✅	5s	2s	+150%
keccak_f1600_x1_native_aarch64	✅	4s	2s	+100%
keccak_f1600_x4_native_avx2	✅	4s	4s	+0%
keccak_finalize	✅	4s	3s	+33%
pointwise_native_x86_64	✅	4s	4s	+0%
poly_chknorm_native	✅	4s	2s	+100%
poly_ntt_c	✅	4s	3s	+33%
poly_permute_bitrev_to_custom_optional	✅	4s	3s	+33%
poly_pointwise_montgomery	✅	4s	3s	+33%
poly_shiftl	✅	4s	6s	-33%
poly_uniform	✅	4s	4s	+0%
poly_uniform_eta	✅	4s	2s	+100%
polyvec_matrix_pointwise_montgomery_row	✅	4s	2s	+100%
polyveck_reduce	✅	4s	4s	+0%
polyvecl_pointwise_acc_montgomery_native	✅	4s	2s	+100%
polyvecl_uniform_gamma1_serial	✅	4s	4s	+0%
polyvecl_unpack_z	✅	4s	2s	+100%
polyw1_pack	✅	4s	2s	+100%
polyz_unpack_19_native_aarch64	✅	4s	2s	+100%
rej_eta_native	✅	4s	4s	+0%
shake128_finalize	✅	4s	3s	+33%
shake256	✅	4s	3s	+33%
sign_signature	✅	4s	3s	+33%
sign_signature_extmu	✅	4s	2s	+100%
sign_signature_pre_hash_internal	✅	4s	4s	+0%
sign_signature_pre_hash_shake256	✅	4s	8s	-50%
sign_verify_pre_hash_internal	✅	4s	2s	+100%
sign_verify_pre_hash_shake256	✅	4s	6s	-33%
unpack_sk	✅	4s	4s	+0%
unpack_sk_s1hat	✅	4s	3s	+33%
use_hint	✅	4s	3s	+33%
yvec_init	✅	4s	3s	+33%
caddq	✅	3s	3s	+0%
decompose	✅	3s	1s	+200%
keccak_f1600_x1_native_aarch64_v84a	✅	3s	2s	+50%
keccak_f1600_x4_native_aarch64_v84a	✅	3s	2s	+50%
keccak_squeeze	✅	3s	2s	+50%
keccakf1600x4_extract_bytes	✅	3s	2s	+50%
keccakf1600x4_extract_bytes_native	✅	3s	1s	+200%
keccakf1600x4_permute	✅	3s	2s	+50%
keccakf1600x4_xor_bytes	✅	3s	4s	-25%
make_hint	✅	3s	2s	+50%
mld_ct_cmask_nonzero_u32	✅	3s	2s	+50%
mld_ct_get_optblocker_i64	✅	3s	2s	+50%
mld_ct_get_optblocker_u8	✅	3s	3s	+0%
mld_polymat_expand_entry	✅	3s	2s	+50%
mld_prepare_domain_separation_prefix	✅	3s	4s	-25%
mld_value_barrier_i64	✅	3s	2s	+50%
mld_value_barrier_u32	✅	3s	1s	+200%
montgomery_reduce	✅	3s	5s	-40%
nttunpack_native_x86_64	✅	3s	3s	+0%
pack_sig_z	✅	3s	1s	+200%
pack_sk_s1	✅	3s	4s	-25%
pointwise_native_aarch64	✅	3s	3s	+0%
poly_caddq_native	✅	3s	2s	+50%
poly_chknorm_native_aarch64	✅	3s	1s	+200%
poly_decompose	✅	3s	3s	+0%
poly_decompose_32_native_aarch64	✅	3s	2s	+50%
poly_decompose_native	✅	3s	5s	-40%
poly_invntt_tomont	✅	3s	2s	+50%
poly_ntt	✅	3s	4s	-25%
poly_permute_bitrev_to_custom_optional_native	✅	3s	4s	-25%
poly_pointwise_montgomery_native	✅	3s	5s	-40%
poly_uniform_gamma1_4x	✅	3s	3s	+0%
poly_use_hint	✅	3s	2s	+50%
poly_use_hint_native	✅	3s	2s	+50%
polyt0_pack	✅	3s	6s	-50%
polyt1_pack	✅	3s	2s	+50%
polyt1_unpack	✅	3s	5s	-40%
polyvecl_pack_eta	✅	3s	2s	+50%
polyz_unpack_native	✅	3s	2s	+50%
power2round	✅	3s	2s	+50%
reduce32	✅	3s	3s	+0%
rej_eta	✅	3s	4s	-25%
shake128_squeeze	✅	3s	1s	+200%
shake128x4_absorb_once	✅	3s	3s	+0%
shake256_finalize	✅	3s	4s	-25%
sig_unpack_hints	✅	3s	3s	+0%
sk_s2hat_get_poly	✅	3s	2s	+50%
sys_check_capability	✅	3s	2s	+50%
unpack_sk_t0hat	✅	3s	4s	-25%
yvec_get_poly	✅	3s	2s	+50%
keccak_f1600_x4_native_aarch64_v8a_scalar_hybrid	✅	2s	2s	+0%
keccak_f1600_x4_native_aarch64_v8a_v84a_scalar_hybrid	✅	2s	3s	-33%
keccak_init	✅	2s	3s	-33%
keccak_squeezeblocks_x4	✅	2s	4s	-50%
keccakf1600_extract_bytes (big endian)	✅	2s	1s	+100%
keccakf1600_permute	✅	2s	2s	+0%
keccakf1600_permute_native	✅	2s	2s	+0%
keccakf1600_xor_bytes (big endian)	✅	2s	5s	-60%
keccakf1600x4_xor_bytes_native	✅	2s	3s	-33%
mld_ct_abs_i32	✅	2s	3s	-33%
mld_ct_cmask_neg_i32	✅	2s	3s	-33%
mld_ct_cmask_nonzero_u8	✅	2s	3s	-33%
mld_ct_get_optblocker_u32	✅	2s	3s	-33%
mld_keccakf1600_extract_bytes	✅	2s	2s	+0%
mld_keccakf1600x4_xor_bytes_c	✅	2s	3s	-33%
mld_value_barrier_u8	✅	2s	2s	+0%
ntt_native_x86_64	✅	2s	6s	-67%
pack_sig_c	✅	2s	5s	-60%
poly_caddq	✅	2s	2s	+0%
poly_chknorm	✅	2s	2s	+0%
poly_decompose_88_native_aarch64	✅	2s	5s	-60%
poly_reduce	✅	2s	1s	+100%
poly_sub	✅	2s	4s	-50%
polyeta_pack	✅	2s	3s	-33%
polyveck_pack_eta	✅	2s	2s	+0%
polyveck_pack_w1	✅	2s	3s	-33%
polyvecl_uniform_gamma1	✅	2s	4s	-50%
polyz_pack	✅	2s	3s	-33%
polyz_unpack	✅	2s	3s	-33%
polyz_unpack_17_native_aarch64	✅	2s	5s	-60%
shake128_init	✅	2s	5s	-60%
shake128x4_squeezeblocks	✅	2s	3s	-33%
shake256_init	✅	2s	4s	-50%
sign_verify_extmu	✅	2s	5s	-60%
sk_t0hat_get_poly	✅	2s	3s	-33%
unpack_sk_s2hat	✅	2s	3s	-33%
keccakf1600_xor_bytes	✅	1s	4s	-75%
mld_ct_sel_int32	✅	1s	4s	-75%
mld_keccakf1600x4_extract_bytes_c	✅	1s	6s	-83%
poly_uniform_gamma1	✅	1s	3s	-67%
polyvecl_pointwise_acc_montgomery	✅	1s	4s	-75%
polyvecl_unpack_eta	✅	1s	5s	-80%
shake128_absorb	✅	1s	2s	-50%
shake256_absorb	✅	1s	3s	-67%
shake256_release	✅	1s	3s	-67%
shake256x4_absorb_once	✅	1s	2s	-50%
shake256x4_squeezeblocks	✅	1s	3s	-67%
unpack_pk_t1	✅	1s	3s	-67%

[oqs-bot]

CBMC Results (ML-DSA-65)

Full Results (198 proofs)

Proof	Status	Current	Previous	Change
**TOTAL**	✅	1947s	1911s	+1.9%
polyvecl_pointwise_acc_montgomery_c	✅	303s	284s	+7%
polyvec_matrix_expand	✅	151s	146s	+3%
rej_uniform_native	✅	128s	121s	+6%
poly_pointwise_montgomery_c	✅	100s	96s	+4%
mld_invntt_layer	✅	95s	94s	+1%
sign_verify_internal	✅	73s	55s	+33%
mld_ct_memcmp	✅	72s	76s	-5%
mld_attempt_signature_generation	✅	69s	71s	-3%
sign_signature_internal	✅	48s	45s	+7%
mld_ntt_layer	✅	44s	43s	+2%
fqmul	✅	30s	30s	+0%
polyvec_matrix_pointwise_montgomery_yvec	✅	27s	28s	-4%
keccakf1600x4_permute_native	✅	24s	22s	+9%
polyvec_matrix_expand_serial	✅	22s	25s	-12%
rej_uniform_c	✅	19s	20s	-5%
poly_chknorm_c	✅	16s	15s	+7%
rej_uniform	✅	16s	17s	-6%
mld_check_pct	✅	15s	11s	+36%
poly_uniform_eta_4x	✅	15s	14s	+7%
polyt0_unpack	✅	15s	14s	+7%
compute_pack_t0_t1	✅	14s	11s	+27%
mld_ntt_butterfly_block	✅	14s	15s	-7%
poly_uniform_4x	✅	14s	11s	+27%
polyveck_decompose	✅	13s	14s	-7%
keccak_absorb_once_x4	✅	11s	10s	+10%
poly_add	✅	11s	11s	+0%
polyveck_chknorm	✅	11s	9s	+22%
poly_invntt_tomont_c	✅	10s	7s	+43%
mld_compute_pack_z	✅	8s	5s	+60%
mld_sample_s1_s2_serial	✅	8s	5s	+60%
poly_power2round	✅	8s	7s	+14%
poly_uniform	✅	8s	4s	+100%
polyveck_caddq	✅	8s	7s	+14%
polyveck_ntt	✅	8s	6s	+33%
keccak_absorb	✅	7s	8s	-12%
pointwise_acc_native_aarch64	✅	7s	9s	-22%
pointwise_acc_native_x86_64	✅	7s	6s	+17%
poly_decompose_c	✅	7s	7s	+0%
polyveck_invntt_tomont	✅	7s	7s	+0%
polyvecl_ntt	✅	7s	10s	-30%
sign	✅	6s	8s	-25%
sign_keypair	✅	6s	3s	+100%
sign_keypair_internal	✅	6s	3s	+100%
sign_signature_pre_hash_shake256	✅	6s	4s	+50%
unpack_sk_s1hat	✅	6s	2s	+200%
intt_native_x86_64	✅	5s	2s	+150%
keccak_squeezeblocks_x4	✅	5s	4s	+25%
mld_h	✅	5s	5s	+0%
mld_keccakf1600_permute_c	✅	5s	7s	-29%
ntt_native_aarch64	✅	5s	3s	+67%
ntt_native_x86_64	✅	5s	2s	+150%
pack_sig_c	✅	5s	1s	+400%
poly_challenge	✅	5s	4s	+25%
poly_pointwise_montgomery	✅	5s	3s	+67%
polyeta_unpack	✅	5s	3s	+67%
polyvecl_uniform_gamma1_serial	✅	5s	3s	+67%
rej_eta_c	✅	5s	4s	+25%
sign_pk_from_sk	✅	5s	6s	-17%
sign_verify_pre_hash_shake256	✅	5s	4s	+25%
unpack_sk_t0hat	✅	5s	4s	+25%
yvec_init	✅	5s	5s	+0%
caddq	✅	4s	2s	+100%
make_hint	✅	4s	2s	+100%
mld_prepare_domain_separation_prefix	✅	4s	2s	+100%
mld_sample_s1_s2	✅	4s	4s	+0%
mld_value_barrier_u8	✅	4s	3s	+33%
pack_sk_s1	✅	4s	2s	+100%
pointwise_native_aarch64	✅	4s	2s	+100%
poly_caddq_c	✅	4s	5s	-20%
poly_chknorm_native_aarch64	✅	4s	3s	+33%
poly_decompose	✅	4s	2s	+100%
poly_ntt_native	✅	4s	3s	+33%
poly_permute_bitrev_to_custom_optional	✅	4s	3s	+33%
poly_shiftl	✅	4s	5s	-20%
poly_uniform_gamma1	✅	4s	3s	+33%
poly_uniform_gamma1_4x	✅	4s	4s	+0%
poly_use_hint_native	✅	4s	4s	+0%
polyveck_unpack_eta	✅	4s	3s	+33%
polyvecl_chknorm	✅	4s	4s	+0%
polyvecl_pointwise_acc_montgomery_native	✅	4s	1s	+300%
polyvecl_uniform_gamma1	✅	4s	4s	+0%
polyz_unpack_17_native_aarch64	✅	4s	2s	+100%
rej_eta_native	✅	4s	4s	+0%
shake128_squeeze	✅	4s	1s	+300%
shake128x4_absorb_once	✅	4s	1s	+300%
shake256	✅	4s	3s	+33%
sign_open	✅	4s	4s	+0%
sign_verify_pre_hash_internal	✅	4s	6s	-33%
unpack_pk_t1	✅	4s	2s	+100%
unpack_sk	✅	4s	7s	-43%
decompose	✅	3s	4s	-25%
fqscale	✅	3s	3s	+0%
keccak_f1600_x4_native_aarch64_v8a_v84a_scalar_hybrid	✅	3s	2s	+50%
keccak_f1600_x4_native_avx2	✅	3s	2s	+50%
keccak_finalize	✅	3s	4s	-25%
keccakf1600_extract_bytes (big endian)	✅	3s	2s	+50%
keccakf1600_xor_bytes	✅	3s	3s	+0%
keccakf1600_xor_bytes (big endian)	✅	3s	2s	+50%
keccakf1600x4_extract_bytes	✅	3s	3s	+0%
keccakf1600x4_xor_bytes	✅	3s	1s	+200%
keccakf1600x4_xor_bytes_native	✅	3s	2s	+50%
mld_ct_cmask_nonzero_u32	✅	3s	4s	-25%
mld_ct_cmask_nonzero_u8	✅	3s	2s	+50%
mld_ct_sel_int32	✅	3s	3s	+0%
mld_keccakf1600_extract_bytes	✅	3s	2s	+50%
montgomery_reduce	✅	3s	3s	+0%
pack_sig_z	✅	3s	4s	-25%
pack_sk_rho_key_tr_s2	✅	3s	4s	-25%
pointwise_native_x86_64	✅	3s	3s	+0%
poly_caddq_native	✅	3s	4s	-25%
poly_ntt_c	✅	3s	2s	+50%
poly_permute_bitrev_to_custom_optional_native	✅	3s	4s	-25%
poly_uniform_eta	✅	3s	6s	-50%
poly_use_hint	✅	3s	3s	+0%
polyeta_pack	✅	3s	2s	+50%
polyt0_pack	✅	3s	3s	+0%
polyt1_unpack	✅	3s	2s	+50%
polyveck_reduce	✅	3s	4s	-25%
polyvecl_pointwise_acc_montgomery	✅	3s	4s	-25%
polyvecl_unpack_eta	✅	3s	2s	+50%
polyz_pack	✅	3s	3s	+0%
polyz_unpack_19_native_aarch64	✅	3s	7s	-57%
polyz_unpack_c	✅	3s	4s	-25%
polyz_unpack_native	✅	3s	4s	-25%
rej_eta	✅	3s	3s	+0%
shake128_absorb	✅	3s	4s	-25%
shake128_finalize	✅	3s	2s	+50%
shake128_init	✅	3s	1s	+200%
shake128_release	✅	3s	3s	+0%
shake256_finalize	✅	3s	2s	+50%
shake256_init	✅	3s	2s	+50%
sign_signature	✅	3s	5s	-40%
sign_signature_extmu	✅	3s	6s	-50%
sign_verify	✅	3s	4s	-25%
sign_verify_extmu	✅	3s	7s	-57%
sk_s1hat_get_poly	✅	3s	2s	+50%
sk_s2hat_get_poly	✅	3s	2s	+50%
sys_check_capability	✅	3s	3s	+0%
use_hint	✅	3s	2s	+50%
intt_native_aarch64	✅	2s	3s	-33%
keccak_f1600_x1_native_aarch64	✅	2s	1s	+100%
keccak_f1600_x1_native_aarch64_v84a	✅	2s	2s	+0%
keccak_f1600_x4_native_aarch64_v84a	✅	2s	2s	+0%
keccak_init	✅	2s	1s	+100%
keccak_squeeze	✅	2s	5s	-60%
keccakf1600_permute	✅	2s	6s	-67%
keccakf1600_permute_native	✅	2s	4s	-50%
keccakf1600x4_extract_bytes_native	✅	2s	3s	-33%
keccakf1600x4_permute	✅	2s	4s	-50%
mld_ct_abs_i32	✅	2s	2s	+0%
mld_ct_get_optblocker_u32	✅	2s	2s	+0%
mld_ct_get_optblocker_u8	✅	2s	2s	+0%
mld_keccakf1600x4_extract_bytes_c	✅	2s	3s	-33%
mld_keccakf1600x4_xor_bytes_c	✅	2s	4s	-50%
mld_polymat_expand_entry	✅	2s	3s	-33%
nttunpack_native_x86_64	✅	2s	2s	+0%
pack_sig_h	✅	2s	5s	-60%
poly_caddq	✅	2s	2s	+0%
poly_caddq_native_aarch64	✅	2s	6s	-67%
poly_chknorm	✅	2s	3s	-33%
poly_chknorm_native	✅	2s	3s	-33%
poly_decompose_32_native_aarch64	✅	2s	4s	-50%
poly_decompose_88_native_aarch64	✅	2s	3s	-33%
poly_decompose_native	✅	2s	4s	-50%
poly_invntt_tomont	✅	2s	7s	-71%
poly_invntt_tomont_native	✅	2s	3s	-33%
poly_reduce	✅	2s	5s	-60%
poly_use_hint_c	✅	2s	4s	-50%
poly_use_hint_native_aarch64	✅	2s	3s	-33%
polyt1_pack	✅	2s	3s	-33%
polyvec_matrix_pointwise_montgomery_row	✅	2s	4s	-50%
polyveck_pack_eta	✅	2s	4s	-50%
polyveck_pack_w1	✅	2s	5s	-60%
polyvecl_pack_eta	✅	2s	3s	-33%
polyw1_pack	✅	2s	2s	+0%
polyz_unpack	✅	2s	2s	+0%
power2round	✅	2s	4s	-50%
reduce32	✅	2s	3s	-33%
shake256_release	✅	2s	4s	-50%
shake256_squeeze	✅	2s	2s	+0%
sig_unpack_hints	✅	2s	2s	+0%
sign_signature_pre_hash_internal	✅	2s	3s	-33%
unpack_sk_s2hat	✅	2s	2s	+0%
yvec_get_poly	✅	2s	3s	-33%
keccak_f1600_x4_native_aarch64_v8a_scalar_hybrid	✅	1s	4s	-75%
mld_ct_cmask_neg_i32	✅	1s	4s	-75%
mld_ct_get_optblocker_i64	✅	1s	3s	-67%
mld_value_barrier_i64	✅	1s	5s	-80%
mld_value_barrier_u32	✅	1s	1s	+0%
poly_ntt	✅	1s	3s	-67%
poly_pointwise_montgomery_native	✅	1s	1s	+0%
poly_sub	✅	1s	3s	-67%
polyvecl_unpack_z	✅	1s	6s	-83%
shake128x4_squeezeblocks	✅	1s	2s	-50%
shake256_absorb	✅	1s	3s	-67%
shake256x4_absorb_once	✅	1s	2s	-50%
shake256x4_squeezeblocks	✅	1s	3s	-67%
sk_t0hat_get_poly	✅	1s	2s	-50%