//go:build wasm
//:build wasm

package poly1305

import (
	p1305 "vendor/golang.org/x/crypto/internal/poly1305"
)

func MAC(key, data []byte) (buf []byte) {
	if len(key) != 32 {
		return nil
	}
	var k [32]byte
	copy(k[:], key)
	var out [16]byte
	p1305.Sum(&out, data, &k)
	return out[:]
}

func Verify(key, data, tag []byte) (ok bool) {
	if len(key) != 32 || len(tag) != 16 {
		return false
	}
	var k [32]byte
	var t [16]byte
	copy(k[:], key)
	copy(t[:], tag)
	return p1305.Verify(&t, data, &k)
}