vendor/golang.org/x/crypto/chacha20poly1305.chacha20poly1305.Open (method, view implemented interface methods)

one use

	vendor/golang.org/x/crypto/chacha20poly1305 (current package)
		chacha20poly1305.go#L71: func (c *chacha20poly1305) Open(dst, nonce, ciphertext, additionalData []byte) ([]byte, error) {