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xenomancer/sha2.h

Created July 7, 2022 14:40
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  1. xenomancer created this gist Jul 7, 2022.
    982 changes: 982 additions & 0 deletions sha2.h
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    Original file line number Diff line number Diff line change
    @@ -0,0 +1,982 @@
    #pragma once
    #include <stdlib>
    #include <vector>
    #include <string>

    #define SHA2_SHFR(x, n) (x >> n)
    #define SHA2_ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n)))
    #define SHA2_ROTL(x, n) ((x << n) | (x >> ((sizeof(x) << 3) - n)))
    #define SHA2_CH(x, y, z) ((x & y) ^ (~x & z))
    #define SHA2_MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z))

    #define SHA2_UNPACK32(x, str) \
    { \
    *((str) + 3) = (unsigned char) ((x) ); \
    *((str) + 2) = (unsigned char) ((x) >> 8); \
    *((str) + 1) = (unsigned char) ((x) >> 16); \
    *((str) + 0) = (unsigned char) ((x) >> 24); \
    }
    #define SHA2_PACK32(str, x) \
    { \
    *(x) = ((unsigned int) *((str) + 3) ) \
    | ((unsigned int) *((str) + 2) << 8) \
    | ((unsigned int) *((str) + 1) << 16) \
    | ((unsigned int) *((str) + 0) << 24); \
    }

    #define SHA2_UNPACK64(x, str) \
    { \
    *((str) + 7) = (unsigned char) ((x) ); \
    *((str) + 6) = (unsigned char) ((x) >> 8); \
    *((str) + 5) = (unsigned char) ((x) >> 16); \
    *((str) + 4) = (unsigned char) ((x) >> 24); \
    *((str) + 3) = (unsigned char) ((x) >> 32); \
    *((str) + 2) = (unsigned char) ((x) >> 40); \
    *((str) + 1) = (unsigned char) ((x) >> 48); \
    *((str) + 0) = (unsigned char) ((x) >> 56); \
    }
    #define SHA2_PACK64(str, x) \
    { \
    *(x) = ((unsigned long long) *((str) + 7) ) \
    | ((unsigned long long) *((str) + 6) << 8) \
    | ((unsigned long long) *((str) + 5) << 16) \
    | ((unsigned long long) *((str) + 4) << 24) \
    | ((unsigned long long) *((str) + 3) << 32) \
    | ((unsigned long long) *((str) + 2) << 40) \
    | ((unsigned long long) *((str) + 1) << 48) \
    | ((unsigned long long) *((str) + 0) << 56); \
    }

    #define SHA256_F1(x) (SHA2_ROTR(x, 2) ^ SHA2_ROTR(x, 13) ^ SHA2_ROTR(x, 22))
    #define SHA256_F2(x) (SHA2_ROTR(x, 6) ^ SHA2_ROTR(x, 11) ^ SHA2_ROTR(x, 25))
    #define SHA256_F3(x) (SHA2_ROTR(x, 7) ^ SHA2_ROTR(x, 18) ^ SHA2_SHFR(x, 3))
    #define SHA256_F4(x) (SHA2_ROTR(x, 17) ^ SHA2_ROTR(x, 19) ^ SHA2_SHFR(x, 10))

    #define SHA512_F1(x) (SHA2_ROTR(x, 28) ^ SHA2_ROTR(x, 34) ^ SHA2_ROTR(x, 39))
    #define SHA512_F2(x) (SHA2_ROTR(x, 14) ^ SHA2_ROTR(x, 18) ^ SHA2_ROTR(x, 41))
    #define SHA512_F3(x) (SHA2_ROTR(x, 1) ^ SHA2_ROTR(x, 8) ^ SHA2_SHFR(x, 7))
    #define SHA512_F4(x) (SHA2_ROTR(x, 19) ^ SHA2_ROTR(x, 61) ^ SHA2_SHFR(x, 6))

    inline std::vector<unsigned char> sha224(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha224(const unsigned char* aInput, size_t aLength);
    inline std::vector<unsigned char> sha224(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha224(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::vector<unsigned char> sha224(const std::vector<unsigned char>& aInput);
    inline std::vector<unsigned char> sha224(const std::string& aInput);
    inline std::string sha224_str(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::string sha224_str(const unsigned char* aInput, size_t aLength);
    inline std::string sha224_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::string sha224_str(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::string sha224_str(const std::vector<unsigned char>& aInput);
    inline std::string sha224_str(const std::string& aInput);

    inline std::vector<unsigned char> sha256(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha256(const unsigned char* aInput, size_t aLength);
    inline std::vector<unsigned char> sha256(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha256(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::vector<unsigned char> sha256(const std::vector<unsigned char>& aInput);
    inline std::vector<unsigned char> sha256(const std::string& aInput);
    inline std::string sha256_str(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::string sha256_str(const unsigned char* aInput, size_t aLength);
    inline std::string sha256_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::string sha256_str(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::string sha256_str(const std::vector<unsigned char>& aInput);
    inline std::string sha256_str(const std::string& aInput);

    inline std::vector<unsigned char> sha384(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha384(const unsigned char* aInput, size_t aLength);
    inline std::vector<unsigned char> sha384(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha384(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::vector<unsigned char> sha384(const std::vector<unsigned char>& aInput);
    inline std::vector<unsigned char> sha384(const std::string& aInput);
    inline std::string sha384_str(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::string sha384_str(const unsigned char* aInput, size_t aLength);
    inline std::string sha384_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::string sha384_str(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::string sha384_str(const std::vector<unsigned char>& aInput);
    inline std::string sha384_str(const std::string& aInput);

    inline std::vector<unsigned char> sha512(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha512(const unsigned char* aInput, size_t aLength);
    inline std::vector<unsigned char> sha512(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::vector<unsigned char> sha512(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::vector<unsigned char> sha512(const std::vector<unsigned char>& aInput);
    inline std::vector<unsigned char> sha512(const std::string& aInput);
    inline std::string sha512_str(const unsigned char* aInput, size_t aOffset, size_t aLength);
    inline std::string sha512_str(const unsigned char* aInput, size_t aLength);
    inline std::string sha512_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength);
    inline std::string sha512_str(const std::vector<unsigned char>& aInput, size_t aLength);
    inline std::string sha512_str(const std::vector<unsigned char>& aInput);
    inline std::string sha512_str(const std::string& aInput);

    class SHA224 {
    protected:
    constexpr static unsigned int sha256_k[] = {
    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
    0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
    0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
    0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
    0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
    0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
    0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
    };
    static const unsigned int SHA224_256_BLOCK_SIZE = (512 / 8);
    unsigned int m_tot_len;
    unsigned int m_len;
    unsigned char m_block[2 * SHA224_256_BLOCK_SIZE];
    unsigned int m_h[8];

    void transform(const unsigned char *message, unsigned int block_nb) {
    unsigned int w[64];
    unsigned int wv[8];
    unsigned int t1, t2;
    const unsigned char *sub_block;
    int i;
    int j;
    for (i = 0; i < (int)block_nb; i++) {
    sub_block = message + (i << 6);
    for (j = 0; j < 16; j++) {
    SHA2_PACK32(&sub_block[j << 2], &w[j]);
    }
    for (j = 16; j < 64; j++) {
    w[j] = SHA256_F4(w[j - 2]) + w[j - 7] + SHA256_F3(w[j - 15]) + w[j - 16];
    }
    for (j = 0; j < 8; j++) {
    wv[j] = m_h[j];
    }
    for (j = 0; j < 64; j++) {
    t1 = wv[7] + SHA256_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
    + sha256_k[j] + w[j];
    t2 = SHA256_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
    wv[7] = wv[6];
    wv[6] = wv[5];
    wv[5] = wv[4];
    wv[4] = wv[3] + t1;
    wv[3] = wv[2];
    wv[2] = wv[1];
    wv[1] = wv[0];
    wv[0] = t1 + t2;
    }
    for (j = 0; j < 8; j++) {
    m_h[j] += wv[j];
    }
    }
    }

    public:
    typedef SHA224 self_type;

    static const unsigned int DIGEST_SIZE = (224 / 8);

    void init() {
    m_h[0] = 0xc1059ed8;
    m_h[1] = 0x367cd507;
    m_h[2] = 0x3070dd17;
    m_h[3] = 0xf70e5939;
    m_h[4] = 0xffc00b31;
    m_h[5] = 0x68581511;
    m_h[6] = 0x64f98fa7;
    m_h[7] = 0xbefa4fa4;
    m_len = 0;
    m_tot_len = 0;
    }
    void update(const unsigned char *message, unsigned int len) {
    unsigned int block_nb;
    unsigned int new_len, rem_len, tmp_len;
    const unsigned char *shifted_message;
    tmp_len = SHA224_256_BLOCK_SIZE - m_len;
    rem_len = len < tmp_len ? len : tmp_len;
    memcpy(&m_block[m_len], message, rem_len);
    if (m_len + len < SHA224_256_BLOCK_SIZE) {
    m_len += len;
    return;
    }
    new_len = len - rem_len;
    block_nb = new_len / SHA224_256_BLOCK_SIZE;
    shifted_message = message + rem_len;
    transform(m_block, 1);
    transform(shifted_message, block_nb);
    rem_len = new_len % SHA224_256_BLOCK_SIZE;
    memcpy(m_block, &shifted_message[block_nb << 6], rem_len);
    m_len = rem_len;
    m_tot_len += (block_nb + 1) << 6;
    }
    void final(unsigned char *digest) {
    unsigned int block_nb;
    unsigned int pm_len;
    unsigned int len_b;
    int i;
    block_nb = (1 + ((SHA224_256_BLOCK_SIZE - 9)
    < (m_len % SHA224_256_BLOCK_SIZE)));
    len_b = (m_tot_len + m_len) << 3;
    pm_len = block_nb << 6;
    memset(m_block + m_len, 0, pm_len - m_len);
    m_block[m_len] = 0x80;
    SHA2_UNPACK32(len_b, m_block + pm_len - 4);
    transform(m_block, block_nb);
    for (i = 0; i < 7; i++) {
    SHA2_UNPACK32(m_h[i], &digest[i << 2]);
    }
    }

    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput + aOffset, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash(((const unsigned char*)aInput.data()) + aOffset, aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput) {
    return get_hash((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::vector<unsigned char> get_hash(const std::string& aInput) {
    return get_hash((const unsigned char*)aInput.c_str(), aInput.length());
    }

    static inline std::string get_hash_str(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aOffset, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const unsigned char* aInput, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aOffset, aInput.size());
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput) {
    return get_hash_str((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::string get_hash_str(const std::string& aInput) {
    return get_hash_str((const unsigned char*)aInput.c_str(), aInput.length());
    }

    friend inline std::vector<unsigned char> sha224(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA224::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha224(const unsigned char* aInput, size_t aLength) { return SHA224::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha224(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA224::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha224(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA224::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha224(const std::vector<unsigned char>& aInput) { return SHA224::get_hash(aInput); }
    friend inline std::vector<unsigned char> sha224(const std::string& aInput) { return SHA224::get_hash(aInput); }
    friend inline std::string sha224_str(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA224::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha224_str(const unsigned char* aInput, size_t aLength) { return SHA224::get_hash_str(aInput, aLength); }
    friend inline std::string sha224_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA224::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha224_str(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA224::get_hash_str(aInput, aLength); }
    friend inline std::string sha224_str(const std::vector<unsigned char>& aInput) { return SHA224::get_hash_str(aInput); }
    friend inline std::string sha224_str(const std::string& aInput) { return SHA224::get_hash_str(aInput); }

    };

    class SHA256 {
    protected:
    constexpr static unsigned int sha256_k[] = {
    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
    0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
    0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
    0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
    0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
    0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
    0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
    0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
    0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
    };
    static const unsigned int SHA224_256_BLOCK_SIZE = (512 / 8);
    unsigned int m_tot_len;
    unsigned int m_len;
    unsigned char m_block[2 * SHA224_256_BLOCK_SIZE];
    unsigned int m_h[8];

    void transform(const unsigned char *message, unsigned int block_nb) {
    unsigned int w[64];
    unsigned int wv[8];
    unsigned int t1, t2;
    const unsigned char *sub_block;
    int i;
    int j;
    for (i = 0; i < (int)block_nb; i++) {
    sub_block = message + (i << 6);
    for (j = 0; j < 16; j++) {
    SHA2_PACK32(&sub_block[j << 2], &w[j]);
    }
    for (j = 16; j < 64; j++) {
    w[j] = SHA256_F4(w[j - 2]) + w[j - 7] + SHA256_F3(w[j - 15]) + w[j - 16];
    }
    for (j = 0; j < 8; j++) {
    wv[j] = m_h[j];
    }
    for (j = 0; j < 64; j++) {
    t1 = wv[7] + SHA256_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
    + sha256_k[j] + w[j];
    t2 = SHA256_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
    wv[7] = wv[6];
    wv[6] = wv[5];
    wv[5] = wv[4];
    wv[4] = wv[3] + t1;
    wv[3] = wv[2];
    wv[2] = wv[1];
    wv[1] = wv[0];
    wv[0] = t1 + t2;
    }
    for (j = 0; j < 8; j++) {
    m_h[j] += wv[j];
    }
    }
    }

    public:
    typedef SHA256 self_type;

    static const unsigned int DIGEST_SIZE = (256 / 8);

    void init() {
    m_h[0] = 0x6a09e667;
    m_h[1] = 0xbb67ae85;
    m_h[2] = 0x3c6ef372;
    m_h[3] = 0xa54ff53a;
    m_h[4] = 0x510e527f;
    m_h[5] = 0x9b05688c;
    m_h[6] = 0x1f83d9ab;
    m_h[7] = 0x5be0cd19;
    m_len = 0;
    m_tot_len = 0;
    }
    void update(const unsigned char *message, unsigned int len) {
    unsigned int block_nb;
    unsigned int new_len, rem_len, tmp_len;
    const unsigned char *shifted_message;
    tmp_len = SHA224_256_BLOCK_SIZE - m_len;
    rem_len = len < tmp_len ? len : tmp_len;
    memcpy(&m_block[m_len], message, rem_len);
    if (m_len + len < SHA224_256_BLOCK_SIZE) {
    m_len += len;
    return;
    }
    new_len = len - rem_len;
    block_nb = new_len / SHA224_256_BLOCK_SIZE;
    shifted_message = message + rem_len;
    transform(m_block, 1);
    transform(shifted_message, block_nb);
    rem_len = new_len % SHA224_256_BLOCK_SIZE;
    memcpy(m_block, &shifted_message[block_nb << 6], rem_len);
    m_len = rem_len;
    m_tot_len += (block_nb + 1) << 6;
    }
    void final(unsigned char *digest) {
    unsigned int block_nb;
    unsigned int pm_len;
    unsigned int len_b;
    int i;
    block_nb = (1 + ((SHA224_256_BLOCK_SIZE - 9)
    < (m_len % SHA224_256_BLOCK_SIZE)));
    len_b = (m_tot_len + m_len) << 3;
    pm_len = block_nb << 6;
    memset(m_block + m_len, 0, pm_len - m_len);
    m_block[m_len] = 0x80;
    SHA2_UNPACK32(len_b, m_block + pm_len - 4);
    transform(m_block, block_nb);
    for (i = 0; i < 8; i++) {
    SHA2_UNPACK32(m_h[i], &digest[i << 2]);
    }
    }

    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput + aOffset, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash(((const unsigned char*)aInput.data()) + aOffset, aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput) {
    return get_hash((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::vector<unsigned char> get_hash(const std::string& aInput) {
    return get_hash((const unsigned char*)aInput.c_str(), aInput.length());
    }

    static inline std::string get_hash_str(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aOffset, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const unsigned char* aInput, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aOffset, aInput.size());
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput) {
    return get_hash_str((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::string get_hash_str(const std::string& aInput) {
    return get_hash_str((const unsigned char*)aInput.c_str(), aInput.length());
    }

    friend inline std::vector<unsigned char> sha256(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA256::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha256(const unsigned char* aInput, size_t aLength) { return SHA256::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha256(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA256::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha256(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA256::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha256(const std::vector<unsigned char>& aInput) { return SHA256::get_hash(aInput); }
    friend inline std::vector<unsigned char> sha256(const std::string& aInput) { return SHA256::get_hash(aInput); }
    friend inline std::string sha256_str(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA256::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha256_str(const unsigned char* aInput, size_t aLength) { return SHA256::get_hash_str(aInput, aLength); }
    friend inline std::string sha256_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA256::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha256_str(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA256::get_hash_str(aInput, aLength); }
    friend inline std::string sha256_str(const std::vector<unsigned char>& aInput) { return SHA256::get_hash_str(aInput); }
    friend inline std::string sha256_str(const std::string& aInput) { return SHA256::get_hash_str(aInput); }

    };

    class SHA384 {
    protected:
    constexpr static unsigned long long sha512_k[] = {
    0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
    0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
    0xd807aa98a3030242ULL, 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
    0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
    0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
    0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
    0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
    0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
    0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
    0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
    0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
    0xd192e819d6ef5218ULL, 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
    0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
    0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
    0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
    0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
    0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
    0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
    0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
    0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
    };
    static const unsigned int SHA384_512_BLOCK_SIZE = (1024 / 8);
    unsigned int m_tot_len;
    unsigned int m_len;
    unsigned char m_block[2 * SHA384_512_BLOCK_SIZE];
    unsigned long long m_h[8];

    void transform(const unsigned char *message, unsigned int block_nb) {
    unsigned long long w[80];
    unsigned long long wv[8];
    unsigned long long t1, t2;
    const unsigned char *sub_block;
    int i, j;
    for (i = 0; i < (int)block_nb; i++) {
    sub_block = message + (i << 7);
    for (j = 0; j < 16; j++) {
    SHA2_PACK64(&sub_block[j << 3], &w[j]);
    }
    for (j = 16; j < 80; j++) {
    w[j] = SHA512_F4(w[j - 2]) + w[j - 7] + SHA512_F3(w[j - 15]) + w[j - 16];
    }
    for (j = 0; j < 8; j++) {
    wv[j] = m_h[j];
    }
    for (j = 0; j < 80; j++) {
    t1 = wv[7] + SHA512_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
    + sha512_k[j] + w[j];
    t2 = SHA512_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
    wv[7] = wv[6];
    wv[6] = wv[5];
    wv[5] = wv[4];
    wv[4] = wv[3] + t1;
    wv[3] = wv[2];
    wv[2] = wv[1];
    wv[1] = wv[0];
    wv[0] = t1 + t2;
    }
    for (j = 0; j < 8; j++) {
    m_h[j] += wv[j];
    }

    }
    }

    public:
    typedef SHA384 self_type;

    static const unsigned int DIGEST_SIZE = (384 / 8);

    void init() {
    m_h[0] = 0xcbbb9d5dc1059ed8ULL;
    m_h[1] = 0x629a292a367cd507ULL;
    m_h[2] = 0x9159015a3070dd17ULL;
    m_h[3] = 0x152fecd8f70e5939ULL;
    m_h[4] = 0x67332667ffc00b31ULL;
    m_h[5] = 0x8eb44a8768581511ULL;
    m_h[6] = 0xdb0c2e0d64f98fa7ULL;
    m_h[7] = 0x47b5481dbefa4fa4ULL;
    m_len = 0;
    m_tot_len = 0;
    }
    void update(const unsigned char *message, unsigned int len) {
    unsigned int block_nb;
    unsigned int new_len, rem_len, tmp_len;
    const unsigned char *shifted_message;
    tmp_len = SHA384_512_BLOCK_SIZE - m_len;
    rem_len = len < tmp_len ? len : tmp_len;
    memcpy(&m_block[m_len], message, rem_len);
    if (m_len + len < SHA384_512_BLOCK_SIZE) {
    m_len += len;
    return;
    }
    new_len = len - rem_len;
    block_nb = new_len / SHA384_512_BLOCK_SIZE;
    shifted_message = message + rem_len;
    transform(m_block, 1);
    transform(shifted_message, block_nb);
    rem_len = new_len % SHA384_512_BLOCK_SIZE;
    memcpy(m_block, &shifted_message[block_nb << 7], rem_len);
    m_len = rem_len;
    m_tot_len += (block_nb + 1) << 7;
    }
    void final(unsigned char *digest) {
    unsigned int block_nb;
    unsigned int pm_len;
    unsigned int len_b;
    int i;
    block_nb = (1 + ((SHA384_512_BLOCK_SIZE - 17)
    < (m_len % SHA384_512_BLOCK_SIZE)));
    len_b = (m_tot_len + m_len) << 3;
    pm_len = block_nb << 7;
    memset(m_block + m_len, 0, pm_len - m_len);
    m_block[m_len] = 0x80;
    SHA2_UNPACK32(len_b, m_block + pm_len - 4);
    transform(m_block, block_nb);
    for (i = 0; i < 6; i++) {
    SHA2_UNPACK64(m_h[i], &digest[i << 3]);
    }
    }

    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput + aOffset, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash(((const unsigned char*)aInput.data()) + aOffset, aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput) {
    return get_hash((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::vector<unsigned char> get_hash(const std::string& aInput) {
    return get_hash((const unsigned char*)aInput.c_str(), aInput.length());
    }

    static inline std::string get_hash_str(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aOffset, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const unsigned char* aInput, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aOffset, aInput.size());
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput) {
    return get_hash_str((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::string get_hash_str(const std::string& aInput) {
    return get_hash_str((const unsigned char*)aInput.c_str(), aInput.length());
    }

    friend inline std::vector<unsigned char> sha384(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA384::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha384(const unsigned char* aInput, size_t aLength) { return SHA384::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha384(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA384::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha384(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA384::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha384(const std::vector<unsigned char>& aInput) { return SHA384::get_hash(aInput); }
    friend inline std::vector<unsigned char> sha384(const std::string& aInput) { return SHA384::get_hash(aInput); }
    friend inline std::string sha384_str(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA384::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha384_str(const unsigned char* aInput, size_t aLength) { return SHA384::get_hash_str(aInput, aLength); }
    friend inline std::string sha384_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA384::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha384_str(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA384::get_hash_str(aInput, aLength); }
    friend inline std::string sha384_str(const std::vector<unsigned char>& aInput) { return SHA384::get_hash_str(aInput); }
    friend inline std::string sha384_str(const std::string& aInput) { return SHA384::get_hash_str(aInput); }

    };

    class SHA512 {
    protected:
    constexpr static unsigned long long sha512_k[] = {
    0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL, 0xe9b5dba58189dbbcULL,
    0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL,
    0xd807aa98a3030242ULL, 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL,
    0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL, 0xc19bf174cf692694ULL,
    0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL,
    0x2de92c6f592b0275ULL, 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL,
    0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL, 0xbf597fc7beef0ee4ULL,
    0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL,
    0x27b70a8546d22ffcULL, 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL,
    0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL, 0x92722c851482353bULL,
    0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL,
    0xd192e819d6ef5218ULL, 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL,
    0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL, 0x34b0bcb5e19b48a8ULL,
    0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL,
    0x748f82ee5defb2fcULL, 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL,
    0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL, 0xc67178f2e372532bULL,
    0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL,
    0x06f067aa72176fbaULL, 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL,
    0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL, 0x431d67c49c100d4cULL,
    0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL
    };
    static const unsigned int SHA384_512_BLOCK_SIZE = (1024 / 8);
    unsigned int m_tot_len;
    unsigned int m_len;
    unsigned char m_block[2 * SHA384_512_BLOCK_SIZE];
    unsigned long long m_h[8];

    void transform(const unsigned char *message, unsigned int block_nb) {
    unsigned long long w[80];
    unsigned long long wv[8];
    unsigned long long t1, t2;
    const unsigned char *sub_block;
    int i, j;
    for (i = 0; i < (int)block_nb; i++) {
    sub_block = message + (i << 7);
    for (j = 0; j < 16; j++) {
    SHA2_PACK64(&sub_block[j << 3], &w[j]);
    }
    for (j = 16; j < 80; j++) {
    w[j] = SHA512_F4(w[j - 2]) + w[j - 7] + SHA512_F3(w[j - 15]) + w[j - 16];
    }
    for (j = 0; j < 8; j++) {
    wv[j] = m_h[j];
    }
    for (j = 0; j < 80; j++) {
    t1 = wv[7] + SHA512_F2(wv[4]) + SHA2_CH(wv[4], wv[5], wv[6])
    + sha512_k[j] + w[j];
    t2 = SHA512_F1(wv[0]) + SHA2_MAJ(wv[0], wv[1], wv[2]);
    wv[7] = wv[6];
    wv[6] = wv[5];
    wv[5] = wv[4];
    wv[4] = wv[3] + t1;
    wv[3] = wv[2];
    wv[2] = wv[1];
    wv[1] = wv[0];
    wv[0] = t1 + t2;
    }
    for (j = 0; j < 8; j++) {
    m_h[j] += wv[j];
    }

    }
    }

    public:
    typedef SHA512 self_type;

    static const unsigned int DIGEST_SIZE = (512 / 8);

    void init() {
    m_h[0] = 0x6a09e667f3bcc908ULL;
    m_h[1] = 0xbb67ae8584caa73bULL;
    m_h[2] = 0x3c6ef372fe94f82bULL;
    m_h[3] = 0xa54ff53a5f1d36f1ULL;
    m_h[4] = 0x510e527fade682d1ULL;
    m_h[5] = 0x9b05688c2b3e6c1fULL;
    m_h[6] = 0x1f83d9abfb41bd6bULL;
    m_h[7] = 0x5be0cd19137e2179ULL;
    m_len = 0;
    m_tot_len = 0;
    }
    void update(const unsigned char *message, unsigned int len) {
    unsigned int block_nb;
    unsigned int new_len, rem_len, tmp_len;
    const unsigned char *shifted_message;
    tmp_len = SHA384_512_BLOCK_SIZE - m_len;
    rem_len = len < tmp_len ? len : tmp_len;
    memcpy(&m_block[m_len], message, rem_len);
    if (m_len + len < SHA384_512_BLOCK_SIZE) {
    m_len += len;
    return;
    }
    new_len = len - rem_len;
    block_nb = new_len / SHA384_512_BLOCK_SIZE;
    shifted_message = message + rem_len;
    transform(m_block, 1);
    transform(shifted_message, block_nb);
    rem_len = new_len % SHA384_512_BLOCK_SIZE;
    memcpy(m_block, &shifted_message[block_nb << 7], rem_len);
    m_len = rem_len;
    m_tot_len += (block_nb + 1) << 7;
    }
    void final(unsigned char *digest) {
    unsigned int block_nb;
    unsigned int pm_len;
    unsigned int len_b;
    int i;
    block_nb = 1 + ((SHA384_512_BLOCK_SIZE - 17)
    < (m_len % SHA384_512_BLOCK_SIZE));
    len_b = (m_tot_len + m_len) << 3;
    pm_len = block_nb << 7;
    memset(m_block + m_len, 0, pm_len - m_len);
    m_block[m_len] = 0x80;
    SHA2_UNPACK32(len_b, m_block + pm_len - 4);
    transform(m_block, block_nb);
    for (i = 0; i < 8; i++) {
    SHA2_UNPACK64(m_h[i], &digest[i << 3]);
    }
    }

    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput + aOffset, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const unsigned char* aInput, size_t aLength) {
    unsigned char digest[DIGEST_SIZE];
    self_type ctx = self_type();
    std::vector<unsigned char> res(DIGEST_SIZE);

    memset(digest, 0, DIGEST_SIZE);

    ctx.init();
    ctx.update(aInput, aLength);
    ctx.final(digest);

    for (int i = 0; i < DIGEST_SIZE; i++) {
    res[i] = digest[i];
    }

    return res;
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash(((const unsigned char*)aInput.data()) + aOffset, aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::vector<unsigned char> get_hash(const std::vector<unsigned char>& aInput) {
    return get_hash((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::vector<unsigned char> get_hash(const std::string& aInput) {
    return get_hash((const unsigned char*)aInput.c_str(), aInput.length());
    }

    static inline std::string get_hash_str(const unsigned char* aInput, size_t aOffset, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aOffset, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const unsigned char* aInput, size_t aLength) {
    std::vector<unsigned char> tmp = get_hash(aInput, aLength);
    char buf[2 * DIGEST_SIZE + 1];

    buf[2 * DIGEST_SIZE] = 0;
    for (int i = 0; i < DIGEST_SIZE; i++) {
    std::snprintf(buf + i * 2, 2 * DIGEST_SIZE + 1 - (i * 2), "%02x", tmp[i]);
    }

    return std::string(buf);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aOffset, aInput.size());
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput, size_t aLength) {
    return get_hash_str((const unsigned char*)aInput.data(), aLength);
    }
    static inline std::string get_hash_str(const std::vector<unsigned char>& aInput) {
    return get_hash_str((const unsigned char*)aInput.data(), aInput.size());
    }
    static inline std::string get_hash_str(const std::string& aInput) {
    return get_hash_str((const unsigned char*)aInput.c_str(), aInput.length());
    }

    friend inline std::vector<unsigned char> sha512(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA512::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha512(const unsigned char* aInput, size_t aLength) { return SHA512::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha512(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA512::get_hash(aInput, aOffset, aLength); }
    friend inline std::vector<unsigned char> sha512(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA512::get_hash(aInput, aLength); }
    friend inline std::vector<unsigned char> sha512(const std::vector<unsigned char>& aInput) { return SHA512::get_hash(aInput); }
    friend inline std::vector<unsigned char> sha512(const std::string& aInput) { return SHA512::get_hash(aInput); }
    friend inline std::string sha512_str(const unsigned char* aInput, size_t aOffset, size_t aLength) { return SHA512::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha512_str(const unsigned char* aInput, size_t aLength) { return SHA512::get_hash_str(aInput, aLength); }
    friend inline std::string sha512_str(const std::vector<unsigned char>& aInput, size_t aOffset, size_t aLength) { return SHA512::get_hash_str(aInput, aOffset, aLength); }
    friend inline std::string sha512_str(const std::vector<unsigned char>& aInput, size_t aLength) { return SHA512::get_hash_str(aInput, aLength); }
    friend inline std::string sha512_str(const std::vector<unsigned char>& aInput) { return SHA512::get_hash_str(aInput); }
    friend inline std::string sha512_str(const std::string& aInput) { return SHA512::get_hash_str(aInput); }

    };