Class CHash256

src/hash.h:24–46

A hasher class for Bitcoin's 256-bit hash (double SHA-256). */

/** A hasher class for Bitcoin's 256-bit hash (double SHA-256). */
class CHash256 {
private:
    CSHA256 sha;
public:
    static const size_t OUTPUT_SIZE = CSHA256::OUTPUT_SIZE;

    void Finalize(Span<unsigned char> output) {
        assert(output.size() == OUTPUT_SIZE);
        unsigned char buf[CSHA256::OUTPUT_SIZE];
        sha.Finalize(buf);
        sha.Reset().Write(buf, CSHA256::OUTPUT_SIZE).Finalize(output.data());
    }

    CHash256& Write(Span<const unsigned char> input) {
        sha.Write(input.data(), input.size());
        return *this;
    }

    CHash256& Reset() {
        sha.Reset();
        return *this;
    }
};

/** A hasher class for Bitcoin's 160-bit hash (SHA-256 + RIPEMD-160). */
class CHash160 {