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44 lines
1.3 KiB
44 lines
1.3 KiB
// Copyright (c) 2022 Proton Technologies AG |
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// |
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// This file is part of ProtonMail Bridge. |
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// |
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// ProtonMail Bridge is free software: you can redistribute it and/or modify |
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// it under the terms of the GNU General Public License as published by |
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// the Free Software Foundation, either version 3 of the License, or |
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// (at your option) any later version. |
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// |
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// ProtonMail Bridge is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with ProtonMail Bridge. If not, see <https://www.gnu.org/licenses/>. |
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package pmapi |
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import ( |
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"encoding/base64" |
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"github.com/ProtonMail/go-srp" |
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"github.com/pkg/errors" |
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) |
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// HashMailboxPassword expectects 128bit long salt encoded by standard base64. |
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func HashMailboxPassword(password []byte, salt string) ([]byte, error) { |
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if salt == "" { |
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return password, nil |
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} |
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decodedSalt, err := base64.StdEncoding.DecodeString(salt) |
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if err != nil { |
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return nil, errors.Wrap(err, "failed to decode salt") |
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} |
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hash, err := srp.MailboxPassword(password, decodedSalt) |
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if err != nil { |
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return nil, errors.Wrap(err, "failed to hash password") |
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} |
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return hash[len(hash)-31:], nil |
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}
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