mirror of
https://github.com/go-gitea/gitea.git
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30 lines
740 B
Go
30 lines
740 B
Go
// Copyright 2026 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package actions
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import (
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"crypto/hmac"
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"crypto/sha256"
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"encoding/binary"
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"io"
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"gitea.dev/modules/setting"
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)
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type tagType string
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// BuildSignature builds a hmac signature for the input values.
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// "tag" is an internal pre-defined static string to distinguish the signatures for different purpose.
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func BuildSignature(tag tagType, vals ...string) []byte {
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m := hmac.New(sha256.New, setting.GetGeneralTokenSigningSecret())
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_, _ = io.WriteString(m, string(tag))
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var buf8 [8]byte
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for _, v := range vals {
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binary.LittleEndian.PutUint64(buf8[:], uint64(len(v)))
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_, _ = m.Write(buf8[:])
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_, _ = io.WriteString(m, v)
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}
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return m.Sum(nil)
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}
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