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noise: only type-assert once (#1691)
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This commit is contained in:
Jack Doan
2026-04-24 13:12:42 -05:00
committed by GitHub
parent db85d61c23
commit 5f890dbc34
1 changed files with 6 additions and 8 deletions
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14
noise.go
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@@ -15,14 +15,12 @@ type endianness interface {
var noiseEndianness endianness = binary.BigEndian var noiseEndianness endianness = binary.BigEndian
type NebulaCipherState struct { type NebulaCipherState struct {
c noise.Cipher c cipher.AEAD
//k [32]byte
//n uint64
} }
func NewNebulaCipherState(s *noise.CipherState) *NebulaCipherState { func NewNebulaCipherState(s *noise.CipherState) *NebulaCipherState {
return &NebulaCipherState{c: s.Cipher()} x := s.Cipher()
return &NebulaCipherState{c: x.(cipher.AEAD)}
} }
// EncryptDanger encrypts and authenticates a given payload. // EncryptDanger encrypts and authenticates a given payload.
@@ -46,7 +44,7 @@ func (s *NebulaCipherState) EncryptDanger(out, ad, plaintext []byte, n uint64, n
nb[2] = 0 nb[2] = 0
nb[3] = 0 nb[3] = 0
noiseEndianness.PutUint64(nb[4:], n) noiseEndianness.PutUint64(nb[4:], n)
out = s.c.(cipher.AEAD).Seal(out, nb, plaintext, ad) out = s.c.Seal(out, nb, plaintext, ad)
//l.Debugf("Encryption: outlen: %d, nonce: %d, ad: %s, plainlen %d", len(out), n, ad, len(plaintext)) //l.Debugf("Encryption: outlen: %d, nonce: %d, ad: %s, plainlen %d", len(out), n, ad, len(plaintext))
return out, nil return out, nil
} else { } else {
@@ -61,7 +59,7 @@ func (s *NebulaCipherState) DecryptDanger(out, ad, ciphertext []byte, n uint64,
nb[2] = 0 nb[2] = 0
nb[3] = 0 nb[3] = 0
noiseEndianness.PutUint64(nb[4:], n) noiseEndianness.PutUint64(nb[4:], n)
return s.c.(cipher.AEAD).Open(out, nb, ciphertext, ad) return s.c.Open(out, nb, ciphertext, ad)
} else { } else {
return []byte{}, nil return []byte{}, nil
} }
@@ -69,7 +67,7 @@ func (s *NebulaCipherState) DecryptDanger(out, ad, ciphertext []byte, n uint64,
func (s *NebulaCipherState) Overhead() int { func (s *NebulaCipherState) Overhead() int {
if s != nil { if s != nil {
return s.c.(cipher.AEAD).Overhead() return s.c.Overhead()
} }
return 0 return 0
} }