CI: Add OpenTitan build test #928

mkannwischer · 2026-01-31T03:33:05Z

Add CI workflow to verify that mldsa-native builds correctly
within the OpenTitan (expo) build system. Only builds the test
binary without running the Verilator simulation, as ML-DSA is
too slow for simulation in CI.

Resolves CI: Test OpenTitan integration #886

oqs-bot · 2026-01-31T04:54:38Z

CBMC Results (ML-DSA-87)

Full Results (174 proofs)

Proof	Status	Current	Previous	Change
`TOTAL`	✅	2225s	2238s	-0.6%
`mld_attempt_signature_generation`	✅	230s	234s	-2%
`sign_verify_internal`	✅	217s	218s	-0%
`polyvecl_pointwise_acc_montgomery_c`	✅	172s	164s	+5%
`polyvec_matrix_expand`	✅	132s	131s	+1%
`poly_pointwise_montgomery_c`	✅	130s	133s	-2%
`rej_uniform_native`	✅	129s	127s	+2%
`polyvec_matrix_expand_serial`	✅	98s	105s	-7%
`mld_ct_memcmp`	✅	77s	75s	+3%
`mld_invntt_layer`	✅	68s	69s	-1%
`mld_ntt_layer`	✅	54s	51s	+6%
`keccak_squeezeblocks_x4`	✅	43s	43s	+0%
`sign_signature_internal`	✅	38s	42s	-10%
`mld_compute_t0_t1_tr_from_sk_components`	✅	25s	23s	+9%
`polymat_permute_bitrev_to_custom`	✅	24s	25s	-4%
`fqmul`	✅	20s	17s	+18%
`rej_uniform`	✅	19s	20s	-5%
`rej_uniform_c`	✅	19s	18s	+6%
`poly_chknorm_c`	✅	17s	19s	-11%
`polyveck_add`	✅	17s	13s	+31%
`keccakf1600x4_permute_native`	✅	16s	15s	+7%
`poly_uniform_eta_4x`	✅	16s	16s	+0%
`polyvec_matrix_pointwise_montgomery`	✅	16s	15s	+7%
`polyt0_unpack`	✅	15s	15s	+0%
`poly_uniform_4x`	✅	14s	13s	+8%
`polyveck_power2round`	✅	14s	14s	+0%
`polyeta_unpack`	✅	13s	13s	+0%
`keccak_absorb_once_x4`	✅	12s	13s	-8%
`mld_ntt_butterfly_block`	✅	10s	13s	-23%
`mld_polyvecl_permute_bitrev_to_custom_native`	✅	10s	10s	+0%
`polyveck_caddq`	✅	10s	9s	+11%
`mld_sample_s1_s2_serial`	✅	9s	8s	+12%
`poly_invntt_tomont_c`	✅	9s	10s	-10%
`polyveck_invntt_tomont`	✅	9s	10s	-10%
`polyveck_reduce`	✅	9s	10s	-10%
`polyvecl_ntt`	✅	9s	6s	+50%
`sign`	✅	9s	7s	+29%
`mld_check_pct`	✅	8s	10s	-20%
`poly_decompose_c`	✅	8s	7s	+14%
`polyveck_chknorm`	✅	8s	8s	+0%
`polyveck_unpack_eta`	✅	8s	5s	+60%
`sign_pk_from_sk`	✅	8s	7s	+14%
`keccakf1600_permute`	✅	7s	8s	-12%
`keccakf1600_permute_native`	✅	7s	9s	-22%
`mld_sample_s1_s2`	✅	7s	7s	+0%
`polyveck_decompose`	✅	7s	5s	+40%
`polyveck_ntt`	✅	7s	7s	+0%
`polyveck_pointwise_poly_montgomery`	✅	7s	6s	+17%
`polyveck_shiftl`	✅	7s	6s	+17%
`polyveck_use_hint`	✅	7s	6s	+17%
`unpack_sig`	✅	7s	2s	+250%
`keccak_absorb`	✅	6s	5s	+20%
`poly_power2round`	✅	6s	5s	+20%
`polyt0_pack`	✅	6s	4s	+50%
`sign_signature`	✅	6s	4s	+50%
`sign_verify`	✅	6s	5s	+20%
`unpack_hints`	✅	6s	4s	+50%
`mld_compute_pack_z`	✅	5s	7s	-29%
`ntt_native_x86_64`	✅	5s	2s	+150%
`poly_ntt_c`	✅	5s	2s	+150%
`poly_ntt_native`	✅	5s	2s	+150%
`poly_uniform`	✅	5s	3s	+67%
`polyvecl_chknorm`	✅	5s	6s	-17%
`polyvecl_unpack_z`	✅	5s	3s	+67%
`polyz_unpack_c`	✅	5s	5s	+0%
`rej_eta_c`	✅	5s	3s	+67%
`shake256_finalize`	✅	5s	2s	+150%
`sign_keypair_internal`	✅	5s	5s	+0%
`unpack_sk`	✅	5s	5s	+0%
`caddq`	✅	4s	2s	+100%
`decompose`	✅	4s	4s	+0%
`keccak_finalize`	✅	4s	2s	+100%
`mld_ct_abs_i32`	✅	4s	2s	+100%
`mld_h`	✅	4s	3s	+33%
`montgomery_reduce`	✅	4s	2s	+100%
`poly_add`	✅	4s	5s	-20%
`poly_challenge`	✅	4s	4s	+0%
`poly_chknorm_native`	✅	4s	3s	+33%
`poly_invntt_tomont`	✅	4s	6s	-33%
`poly_uniform_eta`	✅	4s	5s	-20%
`polyeta_pack`	✅	4s	4s	+0%
`polyveck_pack_t0`	✅	4s	7s	-43%
`polyveck_sub`	✅	4s	8s	-50%
`polyveck_unpack_t0`	✅	4s	3s	+33%
`polyvecl_permute_bitrev_to_custom`	✅	4s	3s	+33%
`polyvecl_pointwise_acc_montgomery`	✅	4s	5s	-20%
`polyz_pack`	✅	4s	3s	+33%
`rej_eta_native`	✅	4s	5s	-20%
`shake128_finalize`	✅	4s	2s	+100%
`shake128x4_absorb_once`	✅	4s	3s	+33%
`sign_signature_pre_hash_internal`	✅	4s	3s	+33%
`sign_signature_pre_hash_shake256`	✅	4s	5s	-20%
`sign_verify_extmu`	✅	4s	3s	+33%
`sign_verify_pre_hash_internal`	✅	4s	5s	-20%
`sign_verify_pre_hash_shake256`	✅	4s	6s	-33%
`unpack_pk`	✅	4s	2s	+100%
`keccakf1600_xor_bytes (big endian)`	✅	3s	3s	+0%
`keccakf1600x4_xor_bytes`	✅	3s	2s	+50%
`mld_ct_get_optblocker_u32`	✅	3s	1s	+200%
`mld_ct_sel_int32`	✅	3s	2s	+50%
`mld_keccakf1600_extract_bytes`	✅	3s	2s	+50%
`mld_prepare_domain_separation_prefix`	✅	3s	4s	-25%
`poly_caddq_native_aarch64`	✅	3s	2s	+50%
`poly_invntt_tomont_native`	✅	3s	3s	+0%
`poly_make_hint`	✅	3s	2s	+50%
`poly_ntt`	✅	3s	4s	-25%
`poly_pointwise_montgomery`	✅	3s	3s	+0%
`poly_pointwise_montgomery_native`	✅	3s	4s	-25%
`poly_reduce`	✅	3s	2s	+50%
`poly_sub`	✅	3s	3s	+0%
`poly_uniform_gamma1_4x`	✅	3s	7s	-57%
`poly_use_hint_c`	✅	3s	4s	-25%
`poly_use_hint_native`	✅	3s	2s	+50%
`polyt1_pack`	✅	3s	3s	+0%
`polyveck_make_hint`	✅	3s	3s	+0%
`polyveck_pack_eta`	✅	3s	3s	+0%
`polyveck_pack_w1`	✅	3s	4s	-25%
`polyvecl_pack_eta`	✅	3s	5s	-40%
`polyvecl_pointwise_acc_montgomery_native`	✅	3s	5s	-40%
`polyvecl_uniform_gamma1`	✅	3s	4s	-25%
`polyvecl_uniform_gamma1_serial`	✅	3s	5s	-40%
`polyz_unpack_native`	✅	3s	2s	+50%
`power2round`	✅	3s	4s	-25%
`shake128_init`	✅	3s	3s	+0%
`shake256_release`	✅	3s	2s	+50%
`shake256x4_absorb_once`	✅	3s	4s	-25%
`shake256x4_squeezeblocks`	✅	3s	2s	+50%
`sign_open`	✅	3s	4s	-25%
`sign_signature_extmu`	✅	3s	5s	-40%
`sys_check_capability`	✅	3s	3s	+0%
`fqscale`	✅	2s	4s	-50%
`keccak_init`	✅	2s	4s	-50%
`keccak_squeeze`	✅	2s	3s	-33%
`keccakf1600_extract_bytes (big endian)`	✅	2s	5s	-60%
`keccakf1600_xor_bytes`	✅	2s	2s	+0%
`keccakf1600x4_extract_bytes`	✅	2s	3s	-33%
`keccakf1600x4_permute`	✅	2s	5s	-60%
`make_hint`	✅	2s	2s	+0%
`mld_ct_cmask_neg_i32`	✅	2s	2s	+0%
`mld_ct_cmask_nonzero_u32`	✅	2s	4s	-50%
`mld_ct_cmask_nonzero_u8`	✅	2s	5s	-60%
`mld_ct_get_optblocker_i64`	✅	2s	1s	+100%
`mld_value_barrier_u32`	✅	2s	2s	+0%
`mld_value_barrier_u8`	✅	2s	2s	+0%
`pack_pk`	✅	2s	4s	-50%
`pack_sig_c_h`	✅	2s	3s	-33%
`pack_sig_z`	✅	2s	4s	-50%
`pack_sk`	✅	2s	3s	-33%
`poly_caddq`	✅	2s	4s	-50%
`poly_caddq_c`	✅	2s	3s	-33%
`poly_caddq_native`	✅	2s	3s	-33%
`poly_chknorm`	✅	2s	4s	-50%
`poly_decompose`	✅	2s	4s	-50%
`poly_decompose_native`	✅	2s	3s	-33%
`poly_shiftl`	✅	2s	3s	-33%
`poly_uniform_gamma1`	✅	2s	3s	-33%
`poly_use_hint`	✅	2s	2s	+0%
`polyt1_unpack`	✅	2s	2s	+0%
`polyw1_pack`	✅	2s	2s	+0%
`polyz_unpack`	✅	2s	3s	-33%
`reduce32`	✅	2s	3s	-33%
`rej_eta`	✅	2s	2s	+0%
`shake128_absorb`	✅	2s	2s	+0%
`shake128_release`	✅	2s	4s	-50%
`shake128_squeeze`	✅	2s	3s	-33%
`shake128x4_squeezeblocks`	✅	2s	2s	+0%
`shake256`	✅	2s	2s	+0%
`shake256_absorb`	✅	2s	2s	+0%
`shake256_init`	✅	2s	3s	-33%
`shake256_squeeze`	✅	2s	3s	-33%
`sign_keypair`	✅	2s	4s	-50%
`use_hint`	✅	2s	2s	+0%
`mld_ct_get_optblocker_u8`	✅	1s	1s	+0%
`mld_value_barrier_i64`	✅	1s	2s	-50%
`polyvecl_unpack_eta`	✅	1s	4s	-75%

oqs-bot · 2026-01-31T04:54:39Z

CBMC Results (ML-DSA-44)

Full Results (174 proofs)

Proof	Status	Current	Previous	Change
`TOTAL`	✅	2075s	1980s	+4.8%
`sign_verify_internal`	✅	257s	243s	+6%
`mld_attempt_signature_generation`	✅	213s	206s	+3%
`polyvecl_pointwise_acc_montgomery_c`	✅	210s	192s	+9%
`poly_pointwise_montgomery_c`	✅	132s	119s	+11%
`rej_uniform_native`	✅	128s	125s	+2%
`mld_invntt_layer`	✅	120s	113s	+6%
`mld_ct_memcmp`	✅	77s	73s	+5%
`sign_signature_internal`	✅	45s	45s	+0%
`keccak_squeezeblocks_x4`	✅	44s	44s	+0%
`mld_ntt_layer`	✅	44s	45s	-2%
`polyvec_matrix_expand`	✅	27s	26s	+4%
`rej_uniform`	✅	23s	19s	+21%
`fqmul`	✅	21s	19s	+11%
`rej_uniform_c`	✅	19s	16s	+19%
`polymat_permute_bitrev_to_custom`	✅	17s	14s	+21%
`poly_chknorm_c`	✅	16s	16s	+0%
`poly_uniform_eta_4x`	✅	16s	16s	+0%
`poly_uniform_4x`	✅	14s	14s	+0%
`keccak_absorb_once_x4`	✅	13s	12s	+8%
`keccakf1600x4_permute_native`	✅	13s	15s	-13%
`mld_compute_t0_t1_tr_from_sk_components`	✅	13s	15s	-13%
`polyt0_unpack`	✅	13s	16s	-19%
`mld_check_pct`	✅	12s	9s	+33%
`mld_ntt_butterfly_block`	✅	12s	12s	+0%
`polyeta_unpack`	✅	12s	13s	-8%
`polyz_unpack_c`	✅	10s	12s	-17%
`mld_polyvecl_permute_bitrev_to_custom_native`	✅	9s	9s	+0%
`sign_keypair_internal`	✅	9s	3s	+200%
`keccak_absorb`	✅	8s	5s	+60%
`keccakf1600_permute`	✅	8s	7s	+14%
`polyveck_add`	✅	8s	7s	+14%
`polyveck_reduce`	✅	8s	5s	+60%
`sign_signature_pre_hash_internal`	✅	8s	6s	+33%
`keccakf1600_permute_native`	✅	7s	7s	+0%
`polyvec_matrix_expand_serial`	✅	7s	8s	-12%
`polyvec_matrix_pointwise_montgomery`	✅	7s	6s	+17%
`sign_pk_from_sk`	✅	7s	7s	+0%
`sign_verify_pre_hash_internal`	✅	7s	5s	+40%
`fqscale`	✅	6s	2s	+200%
`keccakf1600_xor_bytes`	✅	6s	4s	+50%
`mld_compute_pack_z`	✅	6s	6s	+0%
`poly_caddq`	✅	6s	4s	+50%
`poly_use_hint`	✅	6s	3s	+100%
`polyveck_caddq`	✅	6s	4s	+50%
`polyveck_power2round`	✅	6s	6s	+0%
`polyvecl_chknorm`	✅	6s	5s	+20%
`sign`	✅	6s	7s	-14%
`unpack_sig`	✅	6s	2s	+200%
`unpack_sk`	✅	6s	5s	+20%
`montgomery_reduce`	✅	5s	4s	+25%
`pack_sk`	✅	5s	2s	+150%
`poly_caddq_native_aarch64`	✅	5s	5s	+0%
`poly_invntt_tomont_c`	✅	5s	7s	-29%
`poly_reduce`	✅	5s	3s	+67%
`poly_shiftl`	✅	5s	6s	-17%
`poly_use_hint_c`	✅	5s	3s	+67%
`polyveck_chknorm`	✅	5s	4s	+25%
`polyveck_decompose`	✅	5s	5s	+0%
`polyveck_invntt_tomont`	✅	5s	5s	+0%
`polyveck_ntt`	✅	5s	4s	+25%
`polyveck_pack_w1`	✅	5s	3s	+67%
`polyveck_sub`	✅	5s	5s	+0%
`polyveck_use_hint`	✅	5s	9s	-44%
`polyvecl_ntt`	✅	5s	7s	-29%
`power2round`	✅	5s	3s	+67%
`reduce32`	✅	5s	3s	+67%
`sign_open`	✅	5s	3s	+67%
`sign_signature_pre_hash_shake256`	✅	5s	4s	+25%
`sign_verify_extmu`	✅	5s	2s	+150%
`decompose`	✅	4s	6s	-33%
`keccak_init`	✅	4s	3s	+33%
`keccak_squeeze`	✅	4s	2s	+100%
`pack_pk`	✅	4s	2s	+100%
`poly_caddq_c`	✅	4s	2s	+100%
`poly_decompose_native`	✅	4s	3s	+33%
`poly_ntt_c`	✅	4s	1s	+300%
`poly_uniform_gamma1_4x`	✅	4s	3s	+33%
`polyveck_pack_eta`	✅	4s	4s	+0%
`polyveck_pointwise_poly_montgomery`	✅	4s	6s	-33%
`polyvecl_permute_bitrev_to_custom`	✅	4s	3s	+33%
`polyvecl_uniform_gamma1`	✅	4s	3s	+33%
`polyvecl_unpack_eta`	✅	4s	2s	+100%
`rej_eta_c`	✅	4s	3s	+33%
`rej_eta_native`	✅	4s	6s	-33%
`shake256_finalize`	✅	4s	1s	+300%
`shake256_release`	✅	4s	1s	+300%
`shake256_squeeze`	✅	4s	3s	+33%
`sign_signature_extmu`	✅	4s	6s	-33%
`sign_verify`	✅	4s	3s	+33%
`sign_verify_pre_hash_shake256`	✅	4s	2s	+100%
`unpack_hints`	✅	4s	6s	-33%
`keccakf1600x4_xor_bytes`	✅	3s	1s	+200%
`make_hint`	✅	3s	3s	+0%
`mld_ct_cmask_neg_i32`	✅	3s	2s	+50%
`mld_ct_cmask_nonzero_u32`	✅	3s	2s	+50%
`mld_ct_get_optblocker_i64`	✅	3s	3s	+0%
`mld_ct_get_optblocker_u32`	✅	3s	2s	+50%
`mld_ct_sel_int32`	✅	3s	3s	+0%
`mld_h`	✅	3s	5s	-40%
`mld_keccakf1600_extract_bytes`	✅	3s	3s	+0%
`mld_prepare_domain_separation_prefix`	✅	3s	7s	-57%
`mld_sample_s1_s2`	✅	3s	3s	+0%
`mld_value_barrier_i64`	✅	3s	4s	-25%
`mld_value_barrier_u32`	✅	3s	3s	+0%
`poly_add`	✅	3s	4s	-25%
`poly_challenge`	✅	3s	5s	-40%
`poly_chknorm`	✅	3s	2s	+50%
`poly_decompose`	✅	3s	2s	+50%
`poly_decompose_c`	✅	3s	2s	+50%
`poly_invntt_tomont_native`	✅	3s	3s	+0%
`poly_ntt_native`	✅	3s	3s	+0%
`poly_power2round`	✅	3s	2s	+50%
`poly_sub`	✅	3s	3s	+0%
`poly_uniform`	✅	3s	4s	-25%
`poly_uniform_eta`	✅	3s	4s	-25%
`poly_use_hint_native`	✅	3s	6s	-50%
`polyt0_pack`	✅	3s	3s	+0%
`polyt1_pack`	✅	3s	1s	+200%
`polyveck_make_hint`	✅	3s	4s	-25%
`polyveck_pack_t0`	✅	3s	4s	-25%
`polyveck_shiftl`	✅	3s	5s	-40%
`polyveck_unpack_eta`	✅	3s	3s	+0%
`polyvecl_pack_eta`	✅	3s	2s	+50%
`polyvecl_pointwise_acc_montgomery`	✅	3s	3s	+0%
`polyvecl_pointwise_acc_montgomery_native`	✅	3s	4s	-25%
`polyvecl_uniform_gamma1_serial`	✅	3s	4s	-25%
`polyvecl_unpack_z`	✅	3s	2s	+50%
`polyz_pack`	✅	3s	4s	-25%
`rej_eta`	✅	3s	3s	+0%
`shake128_init`	✅	3s	2s	+50%
`shake128_squeeze`	✅	3s	4s	-25%
`shake256`	✅	3s	3s	+0%
`shake256x4_absorb_once`	✅	3s	4s	-25%
`shake256x4_squeezeblocks`	✅	3s	1s	+200%
`sign_keypair`	✅	3s	3s	+0%
`sign_signature`	✅	3s	4s	-25%
`unpack_pk`	✅	3s	3s	+0%
`use_hint`	✅	3s	3s	+0%
`caddq`	✅	2s	4s	-50%
`keccak_finalize`	✅	2s	1s	+100%
`keccakf1600x4_permute`	✅	2s	4s	-50%
`mld_ct_get_optblocker_u8`	✅	2s	3s	-33%
`mld_sample_s1_s2_serial`	✅	2s	4s	-50%
`mld_value_barrier_u8`	✅	2s	2s	+0%
`ntt_native_x86_64`	✅	2s	3s	-33%
`pack_sig_c_h`	✅	2s	3s	-33%
`pack_sig_z`	✅	2s	3s	-33%
`poly_caddq_native`	✅	2s	3s	-33%
`poly_chknorm_native`	✅	2s	4s	-50%
`poly_invntt_tomont`	✅	2s	3s	-33%
`poly_make_hint`	✅	2s	3s	-33%
`poly_ntt`	✅	2s	4s	-50%
`poly_pointwise_montgomery`	✅	2s	2s	+0%
`poly_pointwise_montgomery_native`	✅	2s	2s	+0%
`polyeta_pack`	✅	2s	5s	-60%
`polyt1_unpack`	✅	2s	3s	-33%
`polyveck_unpack_t0`	✅	2s	2s	+0%
`polyw1_pack`	✅	2s	4s	-50%
`polyz_unpack`	✅	2s	2s	+0%
`polyz_unpack_native`	✅	2s	2s	+0%
`shake128_absorb`	✅	2s	3s	-33%
`shake128_finalize`	✅	2s	3s	-33%
`shake128_release`	✅	2s	2s	+0%
`shake128x4_absorb_once`	✅	2s	1s	+100%
`shake128x4_squeezeblocks`	✅	2s	4s	-50%
`shake256_absorb`	✅	2s	4s	-50%
`shake256_init`	✅	2s	1s	+100%
`sys_check_capability`	✅	2s	2s	+0%
`keccakf1600_extract_bytes (big endian)`	✅	1s	2s	-50%
`keccakf1600_xor_bytes (big endian)`	✅	1s	4s	-75%
`keccakf1600x4_extract_bytes`	✅	1s	2s	-50%
`mld_ct_abs_i32`	✅	1s	2s	-50%
`mld_ct_cmask_nonzero_u8`	✅	1s	2s	-50%
`poly_uniform_gamma1`	✅	1s	2s	-50%

oqs-bot · 2026-01-31T04:56:52Z

CBMC Results (ML-DSA-65)

Full Results (174 proofs)

Proof	Status	Current	Previous	Change
`TOTAL`	✅	2479s	2486s	-0.3%
`sign_verify_internal`	✅	373s	376s	-1%
`polyvecl_pointwise_acc_montgomery_c`	✅	257s	255s	+1%
`mld_attempt_signature_generation`	✅	211s	213s	-1%
`poly_pointwise_montgomery_c`	✅	154s	140s	+10%
`rej_uniform_native`	✅	136s	137s	-1%
`polyvec_matrix_expand`	✅	97s	99s	-2%
`mld_ct_memcmp`	✅	87s	86s	+1%
`mld_invntt_layer`	✅	74s	75s	-1%
`polyvec_matrix_expand_serial`	✅	66s	67s	-1%
`mld_ntt_layer`	✅	52s	57s	-9%
`keccak_squeezeblocks_x4`	✅	47s	46s	+2%
`sign_signature_internal`	✅	44s	44s	+0%
`mld_compute_t0_t1_tr_from_sk_components`	✅	26s	27s	-4%
`rej_uniform`	✅	21s	19s	+11%
`polymat_permute_bitrev_to_custom`	✅	20s	19s	+5%
`rej_uniform_c`	✅	20s	19s	+5%
`fqmul`	✅	19s	19s	+0%
`poly_uniform_eta_4x`	✅	19s	19s	+0%
`poly_chknorm_c`	✅	18s	18s	+0%
`polyveck_decompose`	✅	17s	18s	-6%
`polyt0_unpack`	✅	16s	17s	-6%
`poly_uniform_4x`	✅	15s	16s	-6%
`keccakf1600x4_permute_native`	✅	14s	13s	+8%
`polyvec_matrix_pointwise_montgomery`	✅	14s	16s	-12%
`mld_ntt_butterfly_block`	✅	13s	13s	+0%
`keccak_absorb_once_x4`	✅	12s	13s	-8%
`sign`	✅	12s	11s	+9%
`mld_compute_pack_z`	✅	10s	9s	+11%
`poly_invntt_tomont_c`	✅	10s	8s	+25%
`keccakf1600_permute_native`	✅	9s	9s	+0%
`mld_check_pct`	✅	9s	9s	+0%
`mld_polyvecl_permute_bitrev_to_custom_native`	✅	9s	7s	+29%
`polyveck_pointwise_poly_montgomery`	✅	9s	6s	+50%
`polyveck_power2round`	✅	9s	9s	+0%
`polyveck_sub`	✅	9s	8s	+12%
`polyveck_add`	✅	8s	9s	-11%
`polyveck_caddq`	✅	8s	10s	-20%
`polyveck_chknorm`	✅	8s	5s	+60%
`polyveck_invntt_tomont`	✅	8s	8s	+0%
`polyveck_ntt`	✅	8s	10s	-20%
`polyveck_use_hint`	✅	8s	7s	+14%
`sign_pk_from_sk`	✅	8s	9s	-11%
`sign_verify_extmu`	✅	8s	2s	+300%
`keccak_absorb`	✅	7s	7s	+0%
`keccakf1600_permute`	✅	7s	7s	+0%
`mld_sample_s1_s2`	✅	7s	8s	-12%
`poly_challenge`	✅	7s	9s	-22%
`poly_decompose_c`	✅	7s	10s	-30%
`poly_power2round`	✅	7s	5s	+40%
`poly_uniform`	✅	7s	5s	+40%
`polyveck_reduce`	✅	7s	9s	-22%
`polyvecl_uniform_gamma1`	✅	7s	3s	+133%
`polyz_unpack_c`	✅	7s	7s	+0%
`sign_keypair_internal`	✅	7s	5s	+40%
`poly_use_hint_c`	✅	6s	5s	+20%
`polyeta_unpack`	✅	6s	8s	-25%
`polyveck_make_hint`	✅	6s	4s	+50%
`polyvecl_ntt`	✅	6s	6s	+0%
`polyvecl_pointwise_acc_montgomery`	✅	6s	2s	+200%
`rej_eta_native`	✅	6s	4s	+50%
`sign_signature`	✅	6s	8s	-25%
`unpack_sk`	✅	6s	5s	+20%
`decompose`	✅	5s	2s	+150%
`pack_pk`	✅	5s	4s	+25%
`pack_sig_c_h`	✅	5s	5s	+0%
`poly_caddq_native_aarch64`	✅	5s	2s	+150%
`poly_chknorm_native`	✅	5s	5s	+0%
`poly_decompose_native`	✅	5s	5s	+0%
`poly_uniform_eta`	✅	5s	7s	-29%
`polyt0_pack`	✅	5s	4s	+25%
`polyveck_shiftl`	✅	5s	6s	-17%
`polyveck_unpack_eta`	✅	5s	4s	+25%
`polyveck_unpack_t0`	✅	5s	6s	-17%
`polyvecl_chknorm`	✅	5s	6s	-17%
`polyvecl_unpack_eta`	✅	5s	2s	+150%
`shake128x4_squeezeblocks`	✅	5s	4s	+25%
`sign_signature_pre_hash_internal`	✅	5s	2s	+150%
`sign_signature_pre_hash_shake256`	✅	5s	2s	+150%
`sign_verify_pre_hash_shake256`	✅	5s	6s	-17%
`unpack_hints`	✅	5s	5s	+0%
`keccakf1600x4_permute`	✅	4s	4s	+0%
`mld_h`	✅	4s	5s	-20%
`mld_sample_s1_s2_serial`	✅	4s	5s	-20%
`ntt_native_x86_64`	✅	4s	5s	-20%
`pack_sig_z`	✅	4s	3s	+33%
`pack_sk`	✅	4s	3s	+33%
`poly_caddq_native`	✅	4s	4s	+0%
`poly_invntt_tomont`	✅	4s	2s	+100%
`poly_ntt`	✅	4s	2s	+100%
`poly_ntt_c`	✅	4s	3s	+33%
`poly_pointwise_montgomery`	✅	4s	5s	-20%
`poly_reduce`	✅	4s	3s	+33%
`poly_shiftl`	✅	4s	2s	+100%
`polyeta_pack`	✅	4s	3s	+33%
`polyt1_unpack`	✅	4s	2s	+100%
`polyveck_pack_eta`	✅	4s	2s	+100%
`polyvecl_pointwise_acc_montgomery_native`	✅	4s	6s	-33%
`shake128_init`	✅	4s	3s	+33%
`shake128_release`	✅	4s	4s	+0%
`sign_signature_extmu`	✅	4s	3s	+33%
`sign_verify`	✅	4s	4s	+0%
`sign_verify_pre_hash_internal`	✅	4s	4s	+0%
`sys_check_capability`	✅	4s	2s	+100%
`unpack_sig`	✅	4s	3s	+33%
`caddq`	✅	3s	2s	+50%
`fqscale`	✅	3s	4s	-25%
`keccak_squeeze`	✅	3s	3s	+0%
`keccakf1600_extract_bytes (big endian)`	✅	3s	2s	+50%
`keccakf1600_xor_bytes`	✅	3s	3s	+0%
`mld_ct_cmask_neg_i32`	✅	3s	2s	+50%
`mld_ct_cmask_nonzero_u32`	✅	3s	2s	+50%
`mld_ct_get_optblocker_i64`	✅	3s	2s	+50%
`mld_ct_get_optblocker_u32`	✅	3s	1s	+200%
`mld_ct_get_optblocker_u8`	✅	3s	1s	+200%
`mld_prepare_domain_separation_prefix`	✅	3s	5s	-40%
`mld_value_barrier_u32`	✅	3s	4s	-25%
`poly_add`	✅	3s	4s	-25%
`poly_caddq`	✅	3s	3s	+0%
`poly_caddq_c`	✅	3s	3s	+0%
`poly_chknorm`	✅	3s	5s	-40%
`poly_decompose`	✅	3s	3s	+0%
`poly_invntt_tomont_native`	✅	3s	5s	-40%
`poly_make_hint`	✅	3s	3s	+0%
`poly_pointwise_montgomery_native`	✅	3s	2s	+50%
`poly_sub`	✅	3s	3s	+0%
`poly_use_hint`	✅	3s	4s	-25%
`poly_use_hint_native`	✅	3s	4s	-25%
`polyveck_pack_t0`	✅	3s	5s	-40%
`polyvecl_permute_bitrev_to_custom`	✅	3s	5s	-40%
`polyvecl_uniform_gamma1_serial`	✅	3s	5s	-40%
`polyz_unpack`	✅	3s	3s	+0%
`power2round`	✅	3s	2s	+50%
`reduce32`	✅	3s	2s	+50%
`rej_eta`	✅	3s	4s	-25%
`rej_eta_c`	✅	3s	3s	+0%
`shake128x4_absorb_once`	✅	3s	3s	+0%
`shake256_absorb`	✅	3s	4s	-25%
`shake256_init`	✅	3s	4s	-25%
`shake256x4_absorb_once`	✅	3s	2s	+50%
`shake256x4_squeezeblocks`	✅	3s	3s	+0%
`sign_open`	✅	3s	4s	-25%
`unpack_pk`	✅	3s	2s	+50%
`use_hint`	✅	3s	3s	+0%
`keccak_finalize`	✅	2s	2s	+0%
`keccakf1600_xor_bytes (big endian)`	✅	2s	3s	-33%
`keccakf1600x4_extract_bytes`	✅	2s	4s	-50%
`keccakf1600x4_xor_bytes`	✅	2s	3s	-33%
`make_hint`	✅	2s	5s	-60%
`mld_ct_abs_i32`	✅	2s	2s	+0%
`mld_ct_cmask_nonzero_u8`	✅	2s	3s	-33%
`mld_keccakf1600_extract_bytes`	✅	2s	3s	-33%
`mld_value_barrier_u8`	✅	2s	3s	-33%
`montgomery_reduce`	✅	2s	4s	-50%
`poly_ntt_native`	✅	2s	4s	-50%
`poly_uniform_gamma1`	✅	2s	3s	-33%
`poly_uniform_gamma1_4x`	✅	2s	6s	-67%
`polyt1_pack`	✅	2s	3s	-33%
`polyveck_pack_w1`	✅	2s	5s	-60%
`polyvecl_pack_eta`	✅	2s	4s	-50%
`polyvecl_unpack_z`	✅	2s	2s	+0%
`polyw1_pack`	✅	2s	2s	+0%
`polyz_pack`	✅	2s	4s	-50%
`polyz_unpack_native`	✅	2s	3s	-33%
`shake128_absorb`	✅	2s	3s	-33%
`shake128_finalize`	✅	2s	3s	-33%
`shake128_squeeze`	✅	2s	3s	-33%
`shake256`	✅	2s	4s	-50%
`shake256_finalize`	✅	2s	3s	-33%
`shake256_release`	✅	2s	2s	+0%
`shake256_squeeze`	✅	2s	8s	-75%
`sign_keypair`	✅	2s	5s	-60%
`keccak_init`	✅	1s	2s	-50%
`mld_ct_sel_int32`	✅	1s	4s	-75%
`mld_value_barrier_i64`	✅	1s	4s	-75%

Add CI workflow to verify that mldsa-native builds correctly within the OpenTitan (expo) build system. Only builds the test binary without running the Verilator simulation, as ML-DSA is too slow for simulation in CI. - Resolves #886 Signed-off-by: Matthias J. Kannwischer <matthias@kannwischer.eu>

hanno-becker · 2026-02-03T04:10:22Z

.github/actions/setup-opentitan/action.yml

+    - name: Cache Verilator
+      id: cache-verilator
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0
+      with:
+        path: /tools/verilator/4.210
+        key: verilator-4.210-ubuntu22-${{ runner.os }}
+
+    - name: Install Verilator
+      if: steps.cache-verilator.outputs.cache-hit != 'true'
+      shell: bash
+      run: |
+        # Install build-time dependencies for Verilator
+        sudo apt install -y make autoconf bison flex libfl-dev gcc-11 g++-11
+
+        # Build and install Verilator
+        export VERILATOR_VERSION=4.210
+        git clone https://github.com/verilator/verilator.git
+        cd verilator
+        git checkout v$VERILATOR_VERSION
+        autoconf
+        CC=gcc-11 CXX=g++-11 ./configure --prefix=/tools/verilator/$VERILATOR_VERSION
+        CC=gcc-11 CXX=g++-11 make -j$(nproc)
+        sudo CC=gcc-11 CXX=g++-11 make install
+
+    - name: Add Verilator to PATH
+      shell: bash
+      run: |


Not needed I suppose? Are we keeping it in case we want to simulate in CI at some point, after all?

That is what I hoped too. Unfortunately, just building the hardware requires to run verilator.
I have not found a way yet to run the build without it.

hanno-becker

The Verilator setup seems unnecessary given that we only build, but it allows us to keep the setup action synchronized with mlkem-native, which is worthwhile.

mkannwischer force-pushed the ot-ci branch 5 times, most recently from a55a291 to 6a6b7c0 Compare January 31, 2026 03:57

mkannwischer mentioned this pull request Jan 31, 2026

Installation of Python dependencies fails during jsonschema2md build zerorisc/expo#183

Closed

mkannwischer force-pushed the ot-ci branch 4 times, most recently from b0f4c60 to 20d851f Compare January 31, 2026 04:36

mkannwischer marked this pull request as ready for review January 31, 2026 05:02

mkannwischer requested a review from a team as a code owner January 31, 2026 05:02

mkannwischer force-pushed the ot-ci branch from 20d851f to e36013f Compare January 31, 2026 05:03

hanno-becker reviewed Feb 3, 2026

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CI: Add OpenTitan build test #928

CI: Add OpenTitan build test #928

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CBMC Results (ML-DSA-87)

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