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add coprime check

This commit is contained in:
filifa 2025-11-15 19:41:41 -05:00
parent 73c750d317
commit 6d74fdb5e3
1 changed files with 5 additions and 0 deletions
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5
cmd/multiplicativeOrder.go
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@ -38,6 +38,11 @@ func multiplicativeOrder(cmd *cobra.Command, args []string) {
cobra.CheckErr("invalid modulus " + multiplicativeOrderModulus)
}
gcd := new(big.Int).GCD(nil, nil, g, m)
if gcd.Cmp(big.NewInt(1)) != 0 {
cobra.CheckErr("base " + multiplicativeOrderBase + " and modulus " + multiplicativeOrderModulus + " are not coprime")
}
k := lib.MultiplicativeOrder(g, m)
fmt.Println(k)
}