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// SPDX-License-Identifier: BSD-2-Clause
// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
package main
import (
"crypto/sha256"
)
// validateNonce checks if the nonce for the proof of work challenge is valid
// for the given identifier.
func validateNonce(identifier, nonce []byte) bool {
h := sha256.New()
h.Write(identifier)
h.Write(nonce)
ck := h.Sum(nil)
return validateBitZeros(ck, global.NeedBits)
}
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