CryptICS

Take elliptic curve E: y2 ≡ x3 + 6x + 26 over ℤ89

Reciprocal value table, if needed
x 1 2 3 4 5 6 7 8 9 10
x-1 mod 89 1 45 30 67 18 15 51 78 10 9
x 11 12 13 14 15 16 17 18 19 20
x-1 mod 89 81 52 48 70 6 39 21 5 75 49
x 21 22 23 24 25 26 27 28 29 30
x-1 mod 89 17 85 31 26 57 24 33 35 43 3
x 31 32 33 34 35 36 37 38 39 40
x-1 mod 89 23 64 27 55 28 47 77 82 16 69
x 41 42 43 44 45 46 47 48 49 50
x-1 mod 89 76 53 29 87 2 60 36 13 20 73
x 51 52 53 54 55 56 57 58 59 60
x-1 mod 89 7 12 42 61 34 62 25 66 86 46
x 61 62 63 64 65 66 67 68 69 70
x-1 mod 89 54 56 65 32 63 58 4 72 40 14
x 71 72 73 74 75 76 77 78 79 80
x-1 mod 89 84 68 50 83 19 41 37 8 80 79
x 81 82 83 84 85 86 87
x-1 mod 89 11 38 74 71 22 59 44