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Signed-off-by: Kamal Tufekcic <kamal@lo.sh>
55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
"""Tests for primitive cryptographic operations."""
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import soliton
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def test_sha3_256_known_vector():
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"""FIPS 202 test vector: SHA3-256("abc")."""
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result = soliton.sha3_256(b"abc")
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expected = bytes.fromhex(
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"3a985da74fe225b2045c172d6bd390bd"
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"855f086e3e9d525b46bfe24511431532"
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)
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assert result == expected
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def test_sha3_256_empty():
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"""FIPS 202 test vector: SHA3-256("")."""
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result = soliton.sha3_256(b"")
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expected = bytes.fromhex(
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"a7ffc6f8bf1ed76651c14756a061d662"
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"f580ff4de43b49fa82d80a4b80f8434a"
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)
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assert result == expected
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def test_fingerprint_hex():
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result = soliton.fingerprint_hex(b"abc")
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assert isinstance(result, str)
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assert len(result) == 64 # 32 bytes hex-encoded
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def test_hmac_sha3_256():
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key = b"\x0b" * 32
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data = b"Hi There"
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tag = soliton.hmac_sha3_256(key, data)
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assert len(tag) == 32
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def test_hmac_sha3_256_verify():
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key = b"\x0b" * 32
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data = b"Hi There"
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tag = soliton.hmac_sha3_256(key, data)
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assert soliton.hmac_sha3_256_verify(tag, tag) is True
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# Tampered tag should fail.
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tampered = bytearray(tag)
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tampered[0] ^= 0xFF
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assert soliton.hmac_sha3_256_verify(tag, bytes(tampered)) is False
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def test_hkdf_sha3_256():
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salt = b"\x00" * 32
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ikm = b"\x0b" * 32
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info = b"test"
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okm = soliton.hkdf_sha3_256(salt, ikm, info, length=64)
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assert len(okm) == 64
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