mirror of
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synced 2024-11-10 06:16:53 -05:00
32 lines
923 B
Go
32 lines
923 B
Go
package shadowsocks2022
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import (
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"lukechampine.com/blake3"
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"github.com/v2fly/v2ray-core/v5/common/buf"
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)
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func newBLAKE3KeyDerivation() *BLAKE3KeyDerivation {
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return &BLAKE3KeyDerivation{}
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}
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type BLAKE3KeyDerivation struct{}
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func (b BLAKE3KeyDerivation) GetSessionSubKey(effectivePsk, salt []byte, outKey []byte) error {
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keyingMaterialBuffer := buf.New()
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keyingMaterialBuffer.Write(effectivePsk)
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keyingMaterialBuffer.Write(salt)
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blake3.DeriveKey(outKey, "shadowsocks 2022 session subkey", keyingMaterialBuffer.Bytes())
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keyingMaterialBuffer.Release()
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return nil
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}
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func (b BLAKE3KeyDerivation) GetIdentitySubKey(effectivePsk, salt []byte, outKey []byte) error {
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keyingMaterialBuffer := buf.New()
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keyingMaterialBuffer.Write(effectivePsk)
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keyingMaterialBuffer.Write(salt)
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blake3.DeriveKey(outKey, "shadowsocks 2022 identity subkey", keyingMaterialBuffer.Bytes())
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keyingMaterialBuffer.Release()
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return nil
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}
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