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23 lines
962 B
Python
23 lines
962 B
Python
q = 0x40000000000000000000000000000000224698fc0994a8dd8c46eb2100000001
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K = GF(q)
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a = K(0x00)
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b = K(0x05)
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E = EllipticCurve(K, (a, b))
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G = E(0x40000000000000000000000000000000224698fc0994a8dd8c46eb2100000000, 0x02)
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E.set_order(0x40000000000000000000000000000000224698fc094cf91b992d30ed00000001 * 0x01)
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p = 0x40000000000000000000000000000000224698fc094cf91b992d30ed00000001
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Scalar = GF(p)
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A = E(0x40000000000000000000000000000000224698fc0994a8dd8c46eb2100000000, 0x0000000000000000000000000000000000000000000000000000000000000002)
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x = Scalar(0x0000000000000000000000000000000000000000000000000000000000000057)
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print(int(x))
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#print([hex(x) for x in (x * A).xy()])
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B = E(0x04cbd122b054187ff98f0726651096de7f55a213c233902764fe87d376eeb99c, 0x2d5c8c632b1f33eb42726cda0af9f95eaf3dfa8511e6a7b657713dbf62bb13a5)
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assert int(x) * A == B
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yy = Scalar(0x40000000000000000000000000000000224698fc094cf91b992d30ecfffffffe)
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y = x - Scalar(90)
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print(hex(int(y)))
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assert yy == y
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