chia 0.32.0

A meta-crate that exports all of the Chia crates in the workspace.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247

from chia_rs import (
    SpendBundle,
    CoinSpend,
    Program,
    G1Element,
    GTElement,
    PrivateKey,
    AugSchemeMPL,
    G2Element,
    BLSCache,
    Coin,
    ConsensusConstants,
    validate_clvm_and_signature,
    ENABLE_KECCAK_OPS_OUTSIDE_GUARD,
    COST_CONDITIONS,
)
from chia_rs.sized_bytes import bytes32
from chia_rs.sized_ints import uint8, uint16, uint32, uint64, uint128
from run_gen import DEFAULT_CONSTANTS
import pytest


def test_instantiation() -> None:
    bls_cache = BLSCache()
    assert bls_cache.len() == 0
    assert BLSCache is not None
    seed: bytes = bytes.fromhex(
        "003206f418c701193458c013120c5906dc12663ad1520c3e596eb6092c14fe16"
    )

    sk: PrivateKey = AugSchemeMPL.key_gen(seed)
    pk: G1Element = sk.get_g1()
    msg = b"hello"
    sig: G2Element = AugSchemeMPL.sign(sk, msg)
    pks: list[G1Element] = [pk]
    msgs: list[bytes] = [msg]
    result = bls_cache.aggregate_verify(pks, msgs, sig)
    assert result
    assert bls_cache.len() == 1
    result = bls_cache.aggregate_verify(pks, msgs, sig)
    assert result
    assert bls_cache.len() == 1
    pks.append(pk)

    msg = b"world"
    msgs.append(msg)
    sig = AugSchemeMPL.aggregate([sig, AugSchemeMPL.sign(sk, msg)])
    result = bls_cache.aggregate_verify(pks, msgs, sig)
    assert result
    assert bls_cache.len() == 2


def test_cache_limit() -> None:
    bls_cache = BLSCache(3)
    assert bls_cache.len() == 0
    assert BLSCache is not None
    seed: bytes = bytes.fromhex(
        "003206f418c701193458c013120c5906dc12663ad1520c3e596eb6092c14fe16"
    )

    sk: PrivateKey = AugSchemeMPL.key_gen(seed)
    pk: G1Element = sk.get_g1()
    pks: list[G1Element] = []
    msgs: list[bytes] = []
    sigs: list[G2Element] = []
    for i in [0xCAFE, 0xF00D, 0xABCD, 0x1234]:
        msgs.append(i.to_bytes(8, byteorder="little"))
        pks.append(pk)
        sigs.append(AugSchemeMPL.sign(sk, i.to_bytes(8, byteorder="little")))
    result = bls_cache.aggregate_verify(pks, msgs, AugSchemeMPL.aggregate(sigs))
    assert result
    assert bls_cache.len() == 3


# old Python tests ported
def test_cached_bls() -> None:
    cached_bls = BLSCache()
    n_keys = 10
    seed = b"a" * 31
    sks = [AugSchemeMPL.key_gen(seed + bytes([i])) for i in range(n_keys)]
    pks = [sk.get_g1() for sk in sks]
    pks_bytes = [bytes(sk.get_g1()) for sk in sks]

    msgs = [("msg-%d" % (i,)).encode() for i in range(n_keys)]
    sigs = [AugSchemeMPL.sign(sk, msg) for sk, msg in zip(sks, msgs)]
    agg_sig = AugSchemeMPL.aggregate(sigs)

    pks_half = pks[: n_keys // 2]
    pks_half_bytes = pks_bytes[: n_keys // 2]
    msgs_half = msgs[: n_keys // 2]
    sigs_half = sigs[: n_keys // 2]
    agg_sig_half = AugSchemeMPL.aggregate(sigs_half)

    assert AugSchemeMPL.aggregate_verify([pk for pk in pks], msgs, agg_sig)

    # Verify with empty cache and populate it
    assert cached_bls.aggregate_verify(pks_half, msgs_half, agg_sig_half)

    # Verify with partial cache hit
    assert cached_bls.aggregate_verify(pks, msgs, agg_sig)

    # Verify with full cache hit
    assert cached_bls.aggregate_verify(pks, msgs, agg_sig)

    # Use a small cache which can not accommodate all pairings
    bls_cache = BLSCache(n_keys // 2)
    # Verify signatures and cache pairings one at a time
    for pk, msg, sig in zip(pks_half, msgs_half, sigs_half):
        assert bls_cache.aggregate_verify([pk], [msg], sig)

    # Verify the same messages with aggregated signature (full cache hit)
    assert bls_cache.aggregate_verify(pks_half, msgs_half, agg_sig_half)

    # Verify more messages (partial cache hit)
    assert bls_cache.aggregate_verify(pks, msgs, agg_sig)


def test_cached_bls_flattening() -> None:
    cached_bls = BLSCache()
    n_keys = 10
    seed = b"a" * 31
    sks = [AugSchemeMPL.key_gen(seed + bytes([i])) for i in range(n_keys)]
    pks = [sk.get_g1() for sk in sks]
    aggsig = AugSchemeMPL.aggregate(
        [AugSchemeMPL.sign(sk, b"foobar", pk) for sk, pk in zip(sks, pks)]
    )

    assert cached_bls.aggregate_verify(pks, [b"foobar"] * n_keys, aggsig)
    assert len(cached_bls.items()) == n_keys
    gts = [pk.pair(AugSchemeMPL.g2_from_message(bytes(pk) + b"foobar")) for pk in pks]
    for key, value in cached_bls.items():
        assert isinstance(key, bytes)
        assert isinstance(value, GTElement)
        assert value in gts
        gts.remove(value)

    cache_copy = BLSCache()
    cache_copy.update(cached_bls.items())

    assert len(cache_copy.items()) == n_keys
    gts = [pk.pair(AugSchemeMPL.g2_from_message(bytes(pk) + b"foobar")) for pk in pks]
    for key, value in cache_copy.items():
        assert isinstance(key, bytes)
        assert isinstance(value, GTElement)
        assert value in gts
        gts.remove(value)


def test_cached_bls_repeat_pk() -> None:
    cached_bls = BLSCache()
    n_keys = 400
    seed = b"a" * 32
    sks = [AugSchemeMPL.key_gen(seed) for _ in range(n_keys)]
    pks = [sk.get_g1() for sk in sks]

    msgs = [("msg-%d" % (i,)).encode() for i in range(n_keys)]
    sigs = [AugSchemeMPL.sign(sk, msg) for sk, msg in zip(sks, msgs)]
    agg_sig = AugSchemeMPL.aggregate(sigs)

    assert AugSchemeMPL.aggregate_verify([pk for pk in pks], msgs, agg_sig)

    assert cached_bls.aggregate_verify(pks, msgs, agg_sig)


def test_empty_sig() -> None:
    sig = AugSchemeMPL.aggregate([])
    cached_bls = BLSCache()
    assert cached_bls.aggregate_verify([], [], sig)


def test_bad_cache_size() -> None:
    with pytest.raises(ValueError):
        bls_cache = BLSCache(0)

    assert pytest.raises(
        expected_exception=ValueError, match="Cannot have a cache size less than one."
    )

    with pytest.raises(OverflowError):
        bls_cache = BLSCache(-1)

    assert pytest.raises(
        expected_exception=OverflowError, match="can't convert negative int to unsigned"
    )

    with pytest.raises(OverflowError):
        bls_cache = BLSCache(-100000)

    assert pytest.raises(
        expected_exception=OverflowError, match="can't convert negative int to unsigned"
    )

    with pytest.raises(OverflowError):
        bls_cache = BLSCache(-9223372036854775809)

    assert pytest.raises(
        expected_exception=OverflowError, match="can't convert negative int to unsigned"
    )

    with pytest.raises(OverflowError):
        bls_cache = BLSCache(9223372036854775809)

    assert pytest.raises(
        expected_exception=OverflowError,
        match="out of range integral type conversion attempted",
    )


def test_validate_clvm_and_sig() -> None:
    cache = BLSCache()
    puz_reveal = Program.to(1)
    coin = Coin(
        bytes.fromhex(
            "4444444444444444444444444444444444444444444444444444444444444444"
        ),
        puz_reveal.get_tree_hash(),
        uint64(200),
    )

    sol_bytes = bytes.fromhex(
        "ffff32ffb08578d10c07f5f086b08145a40f2b4b55f5cafeb8e6ed8c3c60e3ef92a66b608131225eb15d71fb32285bd7e1c461655fff8568656c6c6f8080"
    )
    # ((50 0x8578d10c07f5f086b08145a40f2b4b55f5cafeb8e6ed8c3c60e3ef92a66b608131225eb15d71fb32285bd7e1c461655f "hello"))
    solution = Program.from_bytes(sol_bytes)
    coin_spends = [CoinSpend(coin, puz_reveal, solution)]
    sk = AugSchemeMPL.key_gen(
        bytes.fromhex(
            "52d75c4707e39595b27314547f9723e5530c01198af3fc5849d9a7af65631efb"
        )
    )
    sig = AugSchemeMPL.sign(
        sk,
        (b"hello" + coin.name() + DEFAULT_CONSTANTS.AGG_SIG_ME_ADDITIONAL_DATA),  # noqa
    )

    new_spend = SpendBundle(coin_spends, sig)

    (sbc, additions, duration) = validate_clvm_and_signature(
        new_spend,
        DEFAULT_CONSTANTS.MAX_BLOCK_COST_CLVM,
        DEFAULT_CONSTANTS,
        ENABLE_KECCAK_OPS_OUTSIDE_GUARD | COST_CONDITIONS,
    )

    assert sbc is not None
    assert additions is not None
    assert duration is not None