$ ctf42

Elliptic_Curve_Cryptography

Misc No technique tags yet.
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Flag format: LYKNCTF{...}

whitequeen_frenchazo

the flag is hidden some where in this curve (100-bit?) look at the p,a and x params

[ { "field": { "p": "0x0fffffffffffffffffffffff67" }, "a": "0x0fffffffffffffffffffffff64", "b": "0x00000000000000000000000abb", "order": "0x0ffffffffffff918654d8534a1", "subgroups": [ { "x": "0x00000000000000000000000001", "y": "0x05a0248e58b8beaa670036b766", "order": "0xffffffffffff918654d8534a1", "cofactor": "0x1", "points": [ { "x": "0x00000000000000000000000001", "y": "0x05a0248e58b8beaa670036b766", "order": "0xffffffffffff918654d8534a1" } ] } ], "meta": { "j": "112789750583074789140677749659", "discriminant": "1267650600228229401493443331063", "embedding_degree": "1267650600228227457995237569696", "frobenius": "1943501465635527", "cm_discriminant": "-1293404453985476069488808253163", "conductor": "1" } }]

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