30 lines
805 B
Go
30 lines
805 B
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package roottoken
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import (
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"encoding/base64"
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"fmt"
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"github.com/hashicorp/vault/sdk/helper/xor"
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)
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// EncodeToken gets a token and an OTP and encodes the token.
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// The OTP must have the same length as the token.
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func EncodeToken(token, otp string) (string, error) {
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if len(token) == 0 {
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return "", fmt.Errorf("no token provided")
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} else if len(otp) == 0 {
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return "", fmt.Errorf("no otp provided")
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}
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// This function performs decoding checks so rather than decode the OTP,
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// just encode the value we're passing in.
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tokenBytes, err := xor.XORBytes([]byte(otp), []byte(token))
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if err != nil {
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return "", fmt.Errorf("xor of root token failed: %w", err)
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}
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return base64.RawStdEncoding.EncodeToString(tokenBytes), nil
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}
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