mirror of
https://github.com/aljazceru/nutshell.git
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e9f33337db
* payment_hash -> hash * add aes encryption * urlsafe base64 for free * move files to crypto * use random hash instead of encryption * get rid of useless code * simplify
107 lines
2.9 KiB
Python
107 lines
2.9 KiB
Python
import pytest
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from cashu.core.crypto.b_dhke import hash_to_curve, step1_alice, step2_bob, step3_alice
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from cashu.core.crypto.secp import PrivateKey, PublicKey
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def test_hash_to_curve():
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result = hash_to_curve(
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bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000000"
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)
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)
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assert (
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result.serialize().hex()
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== "0266687aadf862bd776c8fc18b8e9f8e20089714856ee233b3902a591d0d5f2925"
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)
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result = hash_to_curve(
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bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000001"
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)
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)
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assert (
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result.serialize().hex()
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== "02ec4916dd28fc4c10d78e287ca5d9cc51ee1ae73cbfde08c6b37324cbfaac8bc5"
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)
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def test_hash_to_curve_iteration():
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"""This input causes multiple rounds of the hash_to_curve algorithm."""
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result = hash_to_curve(
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bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000002"
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)
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)
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assert (
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result.serialize().hex()
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== "02076c988b353fcbb748178ecb286bc9d0b4acf474d4ba31ba62334e46c97c416a"
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)
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def test_step1():
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""""""
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B_, blinding_factor = step1_alice(
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"test_message",
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blinding_factor=bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000001"
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), # 32 bytes
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)
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assert (
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B_.serialize().hex()
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== "02a9acc1e48c25eeeb9289b5031cc57da9fe72f3fe2861d264bdc074209b107ba2"
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)
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assert blinding_factor.private_key == bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000001"
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)
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def test_step2():
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B_, _ = step1_alice(
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"test_message",
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blinding_factor=bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000001"
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), # 32 bytes
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)
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a = PrivateKey(
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privkey=bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000001"
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),
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raw=True,
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)
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C_ = step2_bob(B_, a)
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assert (
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C_.serialize().hex()
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== "02a9acc1e48c25eeeb9289b5031cc57da9fe72f3fe2861d264bdc074209b107ba2"
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)
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def test_step3():
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# C = C_ - A.mult(r)
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C_ = PublicKey(
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bytes.fromhex(
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"02a9acc1e48c25eeeb9289b5031cc57da9fe72f3fe2861d264bdc074209b107ba2"
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),
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raw=True,
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)
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r = PrivateKey(
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privkey=bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000001"
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)
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)
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A = PublicKey(
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pubkey=b"\x02"
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+ bytes.fromhex(
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"0000000000000000000000000000000000000000000000000000000000000001",
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),
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raw=True,
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)
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C = step3_alice(C_, r, A)
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assert (
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C.serialize().hex()
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== "03c724d7e6a5443b39ac8acf11f40420adc4f99a02e7cc1b57703d9391f6d129cd"
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)
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