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REALITY protocol: Add ChaCha20-Poly1305 auth mode (#4)

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Co-authored-by: RPRX <63339210+RPRX@users.noreply.github.com>
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Hellojack 2023-06-13 15:58:28 +08:00 committed by GitHub
parent 176a94313e
commit e07c3b04b9
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1 changed files with 10 additions and 4 deletions
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14
tls.go
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@ -36,6 +36,7 @@ import (
"time" "time"
"github.com/pires/go-proxyproto" "github.com/pires/go-proxyproto"
"golang.org/x/crypto/chacha20poly1305"
"golang.org/x/crypto/curve25519" "golang.org/x/crypto/curve25519"
"golang.org/x/crypto/hkdf" "golang.org/x/crypto/hkdf"
) )
@ -189,11 +190,16 @@ func Server(ctx context.Context, conn net.Conn, config *Config) (*Conn, error) {
if _, err = hkdf.New(sha256.New, hs.c.AuthKey, hs.clientHello.random[:20], []byte("REALITY")).Read(hs.c.AuthKey); err != nil { if _, err = hkdf.New(sha256.New, hs.c.AuthKey, hs.clientHello.random[:20], []byte("REALITY")).Read(hs.c.AuthKey); err != nil {
break break
} }
if config.Show { var aead cipher.AEAD
fmt.Printf("REALITY remoteAddr: %v\ths.c.AuthKey[:16]: %v\n", remoteAddr, hs.c.AuthKey[:16]) if aesgcmPreferred(hs.clientHello.cipherSuites) {
}
block, _ := aes.NewCipher(hs.c.AuthKey) block, _ := aes.NewCipher(hs.c.AuthKey)
aead, _ := cipher.NewGCM(block) aead, _ = cipher.NewGCM(block)
} else {
aead, _ = chacha20poly1305.New(hs.c.AuthKey)
}
if config.Show {
fmt.Printf("REALITY remoteAddr: %v\ths.c.AuthKey[:16]: %v\tAEAD: %T\n", remoteAddr, hs.c.AuthKey[:16], aead)
}
ciphertext := make([]byte, 32) ciphertext := make([]byte, 32)
plainText := make([]byte, 32) plainText := make([]byte, 32)
copy(ciphertext, hs.clientHello.sessionId) copy(ciphertext, hs.clientHello.sessionId)