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test_pkey.rb: Add PQC algorithm SLH-DSA (FIPS 205) test #1113

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test_pkey.rb: Add PQC algorithm SLH-DSA (FIPS 205) test #1113

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23 changes: 23 additions & 0 deletions test/openssl/test_pkey.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -290,6 +290,29 @@ def test_ml_dsa
assert_equal(true, pub3.verify(nil, sig, "data"))
end

def test_slh_dsa
# SLH-DSA (FIPS 205) is supported on OpenSSL 3.5 or later.
return unless openssl?(3, 5, 0)

pkey = OpenSSL::PKey.generate_key("SLH-DSA-SHA2-128s")
assert_match(/type_name=SLH-DSA-SHA2-128s/, pkey.inspect)
sig = pkey.sign(nil, "data")
# See FIPS 205 Section 11 Parameter Sets - Table 2. SLH-DSA parameter sets -
# row: SLH-DSA-SHA2-128s, column: sig bytes
assert_equal(7856, sig.bytesize)
assert_equal(true, pkey.verify(nil, sig, "data"))

pub2 = OpenSSL::PKey.read(pkey.public_to_der)
assert_equal(true, pub2.verify(nil, sig, "data"))

raw_public_key = pkey.raw_public_key
# See FIPS 205 Section 11 Parameter Sets - Table 2. SLH-DSA parameter sets -
# row: SLH-DSA-SHA2-128s, column: pk bytes
assert_equal(32, raw_public_key.bytesize)
pub3 = OpenSSL::PKey.new_raw_public_key("SLH-DSA-SHA2-128s", raw_public_key)
assert_equal(true, pub3.verify(nil, sig, "data"))
end

def test_ml_kem
# EVP_PKEY KEM APIs were added in OpenSSL 3.0.
omit "ML-KEM is not supported" unless openssl?(3, 5, 0)
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