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mirror of https://github.com/v2fly/v2ray-core.git synced 2024-12-23 02:26:49 -05:00
v2fly/proxy/shadowsocks2022/kdf_blake3.go
2023-11-19 13:16:28 +00:00

32 lines
923 B
Go

package shadowsocks2022
import (
"lukechampine.com/blake3"
"github.com/v2fly/v2ray-core/v5/common/buf"
)
func newBLAKE3KeyDerivation() *BLAKE3KeyDerivation {
return &BLAKE3KeyDerivation{}
}
type BLAKE3KeyDerivation struct{}
func (b BLAKE3KeyDerivation) GetSessionSubKey(effectivePsk, salt []byte, outKey []byte) error {
keyingMaterialBuffer := buf.New()
keyingMaterialBuffer.Write(effectivePsk)
keyingMaterialBuffer.Write(salt)
blake3.DeriveKey(outKey, "shadowsocks 2022 session subkey", keyingMaterialBuffer.Bytes())
keyingMaterialBuffer.Release()
return nil
}
func (b BLAKE3KeyDerivation) GetIdentitySubKey(effectivePsk, salt []byte, outKey []byte) error {
keyingMaterialBuffer := buf.New()
keyingMaterialBuffer.Write(effectivePsk)
keyingMaterialBuffer.Write(salt)
blake3.DeriveKey(outKey, "shadowsocks 2022 identity subkey", keyingMaterialBuffer.Bytes())
keyingMaterialBuffer.Release()
return nil
}