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31 lines
689 B
31 lines
689 B
3 years ago
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package chromium
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import (
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"encoding/base64"
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"errors"
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"github.com/smallstep/cli/utils"
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"github.com/tidwall/gjson"
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)
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var (
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errDecodeMasterKeyFailed = errors.New("decode master key failed")
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)
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func (c *chromium) GetMasterKey() ([]byte, error) {
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keyFile, err := utils.ReadFile(item.TempChromiumKey)
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if err != nil {
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return nil, err
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}
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encryptedKey := gjson.Get(keyFile, "os_crypt.encrypted_key")
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if encryptedKey.Exists() {
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pureKey, err := base64.StdEncoding.DecodeString(encryptedKey.String())
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if err != nil {
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return nil, errDecodeMasterKeyFailed
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}
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c.browserInfo.masterKey, err = decrypter.DPApi(pureKey[5:])
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return c.browserInfo.masterKey, err
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}
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return nil, nil
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}
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