package crypto import ( "crypto/cipher" "v2ray.com/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) }