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Add SSV size coverage to sakke_op_test

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This commit is contained in:
Jeremiah Mackey
2026-05-12 17:01:38 +00:00
parent cd34cefbad
commit e346cf93cc
1 changed files with 67 additions and 0 deletions
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wolfcrypt/test/test.c
+67
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@@ -58430,6 +58430,73 @@ static wc_test_ret_t sakke_op_test(SakkeKey* priv, SakkeKey* pub, WC_RNG* rng,
authSz);
if (ret != 0)
return WC_TEST_RET_ENC_EC(ret);
{
/* All three SSV entry points reject ssvSz=0 and ssvSz>n. */
word16 zeroSz = 0;
word16 hugeSz = 0xFFFF;
ret = wc_GenerateSakkeSSV(pub, rng, ssv, &zeroSz);
if (ret != WC_NO_ERR_TRACE(BAD_FUNC_ARG))
return WC_TEST_RET_ENC_NC;
zeroSz = 0;
ret = wc_MakeSakkeEncapsulatedSSV(pub, WC_HASH_TYPE_SHA256, ssv, zeroSz,
auth, &authSz);
if (ret != WC_NO_ERR_TRACE(BAD_FUNC_ARG))
return WC_TEST_RET_ENC_NC;
ret = wc_DeriveSakkeSSV(priv, WC_HASH_TYPE_SHA256, ssv, zeroSz, auth,
authSz);
if (ret != WC_NO_ERR_TRACE(BAD_FUNC_ARG))
return WC_TEST_RET_ENC_NC;
ret = wc_GenerateSakkeSSV(pub, rng, ssv, &hugeSz);
if (ret != WC_NO_ERR_TRACE(BAD_FUNC_ARG))
return WC_TEST_RET_ENC_NC;
hugeSz = 0xFFFF;
ret = wc_MakeSakkeEncapsulatedSSV(pub, WC_HASH_TYPE_SHA256, ssv, hugeSz,
auth, &authSz);
if (ret != WC_NO_ERR_TRACE(BAD_FUNC_ARG))
return WC_TEST_RET_ENC_NC;
ret = wc_DeriveSakkeSSV(priv, WC_HASH_TYPE_SHA256, ssv, hugeSz, auth,
authSz);
if (ret != WC_NO_ERR_TRACE(BAD_FUNC_ARG))
return WC_TEST_RET_ENC_NC;
}
{
/* Round-trip encap/derive across ssvSz shapes that exercise the
* multi-iteration paths in sakke_xor_in_v. SHA-256 hashSz=32:
* 48: 2 iterations, partial first block.
* 72: 3 iterations, exercises the len-clamp on the middle iter.
* 64: 2 iterations, exact-multiple (skip==0). */
static const word16 extSzs[3] = { 48, 72, 64 };
byte ssvExt[72];
byte ssvRef[72];
word16 extAuthSz;
int i;
for (i = 0; i < 3; i++) {
word16 extSz = extSzs[i];
ret = wc_RNG_GenerateBlock(rng, ssvRef, extSz);
if (ret != 0)
return WC_TEST_RET_ENC_EC(ret);
XMEMCPY(ssvExt, ssvRef, extSz);
extAuthSz = 257;
ret = wc_MakeSakkeEncapsulatedSSV(pub, WC_HASH_TYPE_SHA256, ssvExt,
extSz, auth, &extAuthSz);
if (ret != 0)
return WC_TEST_RET_ENC_EC(ret);
ret = wc_DeriveSakkeSSV(priv, WC_HASH_TYPE_SHA256, ssvExt, extSz,
auth, extAuthSz);
if (ret != 0)
return WC_TEST_RET_ENC_EC(ret);
if (XMEMCMP(ssvExt, ssvRef, extSz) != 0)
return WC_TEST_RET_ENC_NC;
}
}
return 0;
}