comments

common/crypto/chacha20.go

@@ -6,6 +6,8 @@ import (
 	"github.com/v2ray/v2ray-core/common/crypto/internal"
 )
 
+// NewChaCha20Stream creates a new Chacha20 encryption/descryption stream based on give key and IV.
+// Caller must ensure the length of key is 32 bytes, and length of IV is either 8 or 12 bytes.
 func NewChaCha20Stream(key []byte, iv []byte) cipher.Stream {
 	return internal.NewChaCha20Stream(key, iv, 20)
 }