1f0976a26c
Cross-platform API (get operation) Handshake initiation creation process Outbound packet flow Fixes from code-review
65 lines
1.2 KiB
Go
65 lines
1.2 KiB
Go
package main
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import (
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"encoding/hex"
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"errors"
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"golang.org/x/crypto/chacha20poly1305"
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)
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const (
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NoisePublicKeySize = 32
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NoisePrivateKeySize = 32
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)
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type (
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NoisePublicKey [NoisePublicKeySize]byte
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NoisePrivateKey [NoisePrivateKeySize]byte
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NoiseSymmetricKey [chacha20poly1305.KeySize]byte
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NoiseNonce uint64 // padded to 12-bytes
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)
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func loadExactHex(dst []byte, src string) error {
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slice, err := hex.DecodeString(src)
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if err != nil {
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return err
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}
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if len(slice) != len(dst) {
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return errors.New("Hex string does not fit the slice")
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}
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copy(dst, slice)
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return nil
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}
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func (key NoisePrivateKey) IsZero() bool {
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for _, b := range key[:] {
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if b != 0 {
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return false
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}
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}
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return true
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}
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func (key *NoisePrivateKey) FromHex(src string) error {
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return loadExactHex(key[:], src)
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}
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func (key NoisePrivateKey) ToHex() string {
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return hex.EncodeToString(key[:])
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}
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func (key *NoisePublicKey) FromHex(src string) error {
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return loadExactHex(key[:], src)
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}
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func (key NoisePublicKey) ToHex() string {
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return hex.EncodeToString(key[:])
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}
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func (key *NoiseSymmetricKey) FromHex(src string) error {
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return loadExactHex(key[:], src)
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}
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func (key NoiseSymmetricKey) ToHex() string {
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return hex.EncodeToString(key[:])
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}
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