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28 lines
492 B
Go
28 lines
492 B
Go
package crypto
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import (
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"crypto/rand"
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"fmt"
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"math/big"
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)
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type PasscodeGenerator interface {
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Generate() (string, error)
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}
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type passcodeGenerator struct {
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}
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func NewPasscodeGenerator() PasscodeGenerator {
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return &passcodeGenerator{}
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}
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func (g *passcodeGenerator) Generate() (string, error) {
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max := big.NewInt(999999)
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n, err := rand.Int(rand.Reader, max)
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if err != nil {
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return "", fmt.Errorf("failed to generate random number: %w", err)
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}
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return fmt.Sprintf("%06d", n), nil
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}
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