21 lines
413 B
Go
21 lines
413 B
Go
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package usecase
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import (
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"crypto/rand"
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"encoding/base64"
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"errors"
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"io"
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)
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const opaqueTokenBytes = 32
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type CryptoTokenGenerator struct{}
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func (CryptoTokenGenerator) NewToken() (string, error) {
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value := make([]byte, opaqueTokenBytes)
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if _, err := io.ReadFull(rand.Reader, value); err != nil {
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return "", errors.New("generate opaque token")
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}
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return base64.RawURLEncoding.EncodeToString(value), nil
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}
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