/* MIT License
 *
 * Copyright (c) 2016-2020 INRIA, CMU and Microsoft Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */


#include "internal/Hacl_Hash_Blake2b_256.h"

#include "internal/Hacl_Kremlib.h"
#include "internal/Hacl_Hash_Blake2.h"

static FStar_UInt128_uint128
update_blake2b_256(
  Lib_IntVector_Intrinsics_vec256 *s,
  FStar_UInt128_uint128 totlen,
  uint8_t *block
)
{
  Lib_IntVector_Intrinsics_vec256 wv[4U];
  for (uint32_t _i = 0U; _i < (uint32_t)4U; ++_i)
    wv[_i] = Lib_IntVector_Intrinsics_vec256_zero;
  FStar_UInt128_uint128
  totlen1 =
    FStar_UInt128_add_mod(totlen,
      FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)128U));
  uint64_t m_w[16U] = { 0U };
  for (uint32_t i = (uint32_t)0U; i < (uint32_t)16U; i++)
  {
    uint64_t *os = m_w;
    uint8_t *bj = block + i * (uint32_t)8U;
    uint64_t u = load64_le(bj);
    uint64_t r = u;
    uint64_t x = r;
    os[i] = x;
  }
  Lib_IntVector_Intrinsics_vec256 mask = Lib_IntVector_Intrinsics_vec256_zero;
  uint64_t wv_14 = (uint64_t)0U;
  uint64_t wv_15 = (uint64_t)0U;
  mask =
    Lib_IntVector_Intrinsics_vec256_load64s(FStar_UInt128_uint128_to_uint64(totlen1),
      FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(totlen1, (uint32_t)64U)),
      wv_14,
      wv_15);
  memcpy(wv, s, (uint32_t)4U * (uint32_t)1U * sizeof (Lib_IntVector_Intrinsics_vec256));
  Lib_IntVector_Intrinsics_vec256 *wv3 = wv + (uint32_t)3U * (uint32_t)1U;
  wv3[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv3[0U], mask);
  for (uint32_t i = (uint32_t)0U; i < (uint32_t)12U; i++)
  {
    uint32_t start_idx = i % (uint32_t)10U * (uint32_t)16U;
    KRML_CHECK_SIZE(sizeof (Lib_IntVector_Intrinsics_vec256), (uint32_t)4U * (uint32_t)1U);
    Lib_IntVector_Intrinsics_vec256 m_st[(uint32_t)4U * (uint32_t)1U];
    for (uint32_t _i = 0U; _i < (uint32_t)4U * (uint32_t)1U; ++_i)
      m_st[_i] = Lib_IntVector_Intrinsics_vec256_zero;
    Lib_IntVector_Intrinsics_vec256 *r0 = m_st + (uint32_t)0U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r1 = m_st + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r20 = m_st + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r30 = m_st + (uint32_t)3U * (uint32_t)1U;
    uint32_t s0 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx];
    uint32_t s1 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)1U];
    uint32_t s2 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)2U];
    uint32_t s3 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)3U];
    uint32_t s4 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)4U];
    uint32_t s5 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)5U];
    uint32_t s6 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)6U];
    uint32_t s7 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)7U];
    uint32_t s8 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)8U];
    uint32_t s9 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)9U];
    uint32_t s10 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)10U];
    uint32_t s11 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)11U];
    uint32_t s12 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)12U];
    uint32_t s13 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)13U];
    uint32_t s14 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)14U];
    uint32_t s15 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)15U];
    r0[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s0], m_w[s2], m_w[s4], m_w[s6]);
    r1[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s1], m_w[s3], m_w[s5], m_w[s7]);
    r20[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s8], m_w[s10], m_w[s12], m_w[s14]);
    r30[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s9], m_w[s11], m_w[s13], m_w[s15]);
    Lib_IntVector_Intrinsics_vec256 *x = m_st + (uint32_t)0U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *y = m_st + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *z = m_st + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *w = m_st + (uint32_t)3U * (uint32_t)1U;
    uint32_t a = (uint32_t)0U;
    uint32_t b0 = (uint32_t)1U;
    uint32_t c0 = (uint32_t)2U;
    uint32_t d0 = (uint32_t)3U;
    Lib_IntVector_Intrinsics_vec256 *wv_a0 = wv + a * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b0 = wv + b0 * (uint32_t)1U;
    wv_a0[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a0[0U], wv_b0[0U]);
    wv_a0[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a0[0U], x[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a1 = wv + d0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b1 = wv + a * (uint32_t)1U;
    wv_a1[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a1[0U], wv_b1[0U]);
    wv_a1[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a1[0U], (uint32_t)32U);
    Lib_IntVector_Intrinsics_vec256 *wv_a2 = wv + c0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b2 = wv + d0 * (uint32_t)1U;
    wv_a2[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a2[0U], wv_b2[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a3 = wv + b0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b3 = wv + c0 * (uint32_t)1U;
    wv_a3[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a3[0U], wv_b3[0U]);
    wv_a3[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a3[0U], (uint32_t)24U);
    Lib_IntVector_Intrinsics_vec256 *wv_a4 = wv + a * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b4 = wv + b0 * (uint32_t)1U;
    wv_a4[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a4[0U], wv_b4[0U]);
    wv_a4[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a4[0U], y[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a5 = wv + d0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b5 = wv + a * (uint32_t)1U;
    wv_a5[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a5[0U], wv_b5[0U]);
    wv_a5[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a5[0U], (uint32_t)16U);
    Lib_IntVector_Intrinsics_vec256 *wv_a6 = wv + c0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b6 = wv + d0 * (uint32_t)1U;
    wv_a6[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a6[0U], wv_b6[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a7 = wv + b0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b7 = wv + c0 * (uint32_t)1U;
    wv_a7[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a7[0U], wv_b7[0U]);
    wv_a7[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a7[0U], (uint32_t)63U);
    Lib_IntVector_Intrinsics_vec256 *r10 = wv + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r21 = wv + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r31 = wv + (uint32_t)3U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 v00 = r10[0U];
    Lib_IntVector_Intrinsics_vec256
    v1 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v00, (uint32_t)1U);
    r10[0U] = v1;
    Lib_IntVector_Intrinsics_vec256 v01 = r21[0U];
    Lib_IntVector_Intrinsics_vec256
    v10 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v01, (uint32_t)2U);
    r21[0U] = v10;
    Lib_IntVector_Intrinsics_vec256 v02 = r31[0U];
    Lib_IntVector_Intrinsics_vec256
    v11 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v02, (uint32_t)3U);
    r31[0U] = v11;
    uint32_t a0 = (uint32_t)0U;
    uint32_t b = (uint32_t)1U;
    uint32_t c = (uint32_t)2U;
    uint32_t d = (uint32_t)3U;
    Lib_IntVector_Intrinsics_vec256 *wv_a = wv + a0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b8 = wv + b * (uint32_t)1U;
    wv_a[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a[0U], wv_b8[0U]);
    wv_a[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a[0U], z[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a8 = wv + d * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b9 = wv + a0 * (uint32_t)1U;
    wv_a8[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a8[0U], wv_b9[0U]);
    wv_a8[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a8[0U], (uint32_t)32U);
    Lib_IntVector_Intrinsics_vec256 *wv_a9 = wv + c * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b10 = wv + d * (uint32_t)1U;
    wv_a9[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a9[0U], wv_b10[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a10 = wv + b * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b11 = wv + c * (uint32_t)1U;
    wv_a10[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a10[0U], wv_b11[0U]);
    wv_a10[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a10[0U], (uint32_t)24U);
    Lib_IntVector_Intrinsics_vec256 *wv_a11 = wv + a0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b12 = wv + b * (uint32_t)1U;
    wv_a11[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a11[0U], wv_b12[0U]);
    wv_a11[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a11[0U], w[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a12 = wv + d * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b13 = wv + a0 * (uint32_t)1U;
    wv_a12[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a12[0U], wv_b13[0U]);
    wv_a12[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a12[0U], (uint32_t)16U);
    Lib_IntVector_Intrinsics_vec256 *wv_a13 = wv + c * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b14 = wv + d * (uint32_t)1U;
    wv_a13[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a13[0U], wv_b14[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a14 = wv + b * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b = wv + c * (uint32_t)1U;
    wv_a14[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a14[0U], wv_b[0U]);
    wv_a14[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a14[0U], (uint32_t)63U);
    Lib_IntVector_Intrinsics_vec256 *r11 = wv + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r2 = wv + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r3 = wv + (uint32_t)3U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 v0 = r11[0U];
    Lib_IntVector_Intrinsics_vec256
    v12 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v0, (uint32_t)3U);
    r11[0U] = v12;
    Lib_IntVector_Intrinsics_vec256 v03 = r2[0U];
    Lib_IntVector_Intrinsics_vec256
    v13 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v03, (uint32_t)2U);
    r2[0U] = v13;
    Lib_IntVector_Intrinsics_vec256 v04 = r3[0U];
    Lib_IntVector_Intrinsics_vec256
    v14 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v04, (uint32_t)1U);
    r3[0U] = v14;
  }
  Lib_IntVector_Intrinsics_vec256 *s0 = s + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *s1 = s + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r0 = wv + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r1 = wv + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r2 = wv + (uint32_t)2U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r3 = wv + (uint32_t)3U * (uint32_t)1U;
  s0[0U] = Lib_IntVector_Intrinsics_vec256_xor(s0[0U], r0[0U]);
  s0[0U] = Lib_IntVector_Intrinsics_vec256_xor(s0[0U], r2[0U]);
  s1[0U] = Lib_IntVector_Intrinsics_vec256_xor(s1[0U], r1[0U]);
  s1[0U] = Lib_IntVector_Intrinsics_vec256_xor(s1[0U], r3[0U]);
  return totlen1;
}

void
Hacl_Hash_Blake2b_256_finish_blake2b_256(
  Lib_IntVector_Intrinsics_vec256 *s,
  FStar_UInt128_uint128 ev,
  uint8_t *dst
)
{
  uint32_t double_row = (uint32_t)2U * ((uint32_t)4U * (uint32_t)8U);
  KRML_CHECK_SIZE(sizeof (uint8_t), double_row);
  uint8_t b[double_row];
  memset(b, 0U, double_row * sizeof (uint8_t));
  uint8_t *first = b;
  uint8_t *second = b + (uint32_t)4U * (uint32_t)8U;
  Lib_IntVector_Intrinsics_vec256 *row0 = s + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *row1 = s + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256_store64_le(first, row0[0U]);
  Lib_IntVector_Intrinsics_vec256_store64_le(second, row1[0U]);
  uint8_t *final = b;
  memcpy(dst, final, (uint32_t)64U * sizeof (uint8_t));
  Lib_Memzero0_memzero(b, double_row * sizeof (b[0U]));
}

FStar_UInt128_uint128
Hacl_Hash_Blake2b_256_update_multi_blake2b_256(
  Lib_IntVector_Intrinsics_vec256 *s,
  FStar_UInt128_uint128 ev,
  uint8_t *blocks,
  uint32_t n_blocks
)
{
  for (uint32_t i = (uint32_t)0U; i < n_blocks; i++)
  {
    uint32_t sz = (uint32_t)128U;
    uint8_t *block = blocks + sz * i;
    FStar_UInt128_uint128
    v_ =
      update_blake2b_256(s,
        FStar_UInt128_add_mod(ev,
          FStar_UInt128_uint64_to_uint128((uint64_t)i * (uint64_t)(uint32_t)128U)),
        block);
  }
  return
    FStar_UInt128_add_mod(ev,
      FStar_UInt128_uint64_to_uint128((uint64_t)n_blocks * (uint64_t)(uint32_t)128U));
}

FStar_UInt128_uint128
Hacl_Hash_Blake2b_256_update_last_blake2b_256(
  Lib_IntVector_Intrinsics_vec256 *s,
  FStar_UInt128_uint128 ev,
  FStar_UInt128_uint128 prev_len,
  uint8_t *input,
  uint32_t input_len
)
{
  uint32_t blocks_n = input_len / (uint32_t)128U;
  uint32_t blocks_len0 = blocks_n * (uint32_t)128U;
  uint32_t rest_len0 = input_len - blocks_len0;
  K___uint32_t_uint32_t_uint32_t scrut;
  if (rest_len0 == (uint32_t)0U && blocks_n > (uint32_t)0U)
  {
    uint32_t blocks_n1 = blocks_n - (uint32_t)1U;
    uint32_t blocks_len1 = blocks_len0 - (uint32_t)128U;
    uint32_t rest_len1 = (uint32_t)128U;
    scrut =
      ((K___uint32_t_uint32_t_uint32_t){ .fst = blocks_n1, .snd = blocks_len1, .thd = rest_len1 });
  }
  else
  {
    scrut =
      ((K___uint32_t_uint32_t_uint32_t){ .fst = blocks_n, .snd = blocks_len0, .thd = rest_len0 });
  }
  uint32_t num_blocks0 = scrut.fst;
  uint32_t blocks_len = scrut.snd;
  uint32_t rest_len1 = scrut.thd;
  uint8_t *blocks0 = input;
  uint8_t *rest0 = input + blocks_len;
  K___uint32_t_uint32_t_uint32_t__uint8_t___uint8_t_
  scrut0 =
    { .fst = num_blocks0, .snd = blocks_len, .thd = rest_len1, .f3 = blocks0, .f4 = rest0 };
  uint32_t num_blocks = scrut0.fst;
  uint32_t rest_len = scrut0.thd;
  uint8_t *blocks = scrut0.f3;
  uint8_t *rest = scrut0.f4;
  FStar_UInt128_uint128
  ev_ = Hacl_Hash_Blake2b_256_update_multi_blake2b_256(s, ev, blocks, num_blocks);
  KRML_CHECK_SIZE(sizeof (Lib_IntVector_Intrinsics_vec256), (uint32_t)4U * (uint32_t)1U);
  Lib_IntVector_Intrinsics_vec256 wv[(uint32_t)4U * (uint32_t)1U];
  for (uint32_t _i = 0U; _i < (uint32_t)4U * (uint32_t)1U; ++_i)
    wv[_i] = Lib_IntVector_Intrinsics_vec256_zero;
  uint8_t tmp[128U] = { 0U };
  uint8_t *tmp_rest = tmp;
  memcpy(tmp_rest, rest, rest_len * sizeof (uint8_t));
  FStar_UInt128_uint128
  totlen = FStar_UInt128_add_mod(ev_, FStar_UInt128_uint64_to_uint128((uint64_t)rest_len));
  uint64_t m_w[16U] = { 0U };
  for (uint32_t i = (uint32_t)0U; i < (uint32_t)16U; i++)
  {
    uint64_t *os = m_w;
    uint8_t *bj = tmp + i * (uint32_t)8U;
    uint64_t u = load64_le(bj);
    uint64_t r = u;
    uint64_t x = r;
    os[i] = x;
  }
  Lib_IntVector_Intrinsics_vec256 mask = Lib_IntVector_Intrinsics_vec256_zero;
  uint64_t wv_14 = (uint64_t)0xFFFFFFFFFFFFFFFFU;
  uint64_t wv_15 = (uint64_t)0U;
  mask =
    Lib_IntVector_Intrinsics_vec256_load64s(FStar_UInt128_uint128_to_uint64(totlen),
      FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(totlen, (uint32_t)64U)),
      wv_14,
      wv_15);
  memcpy(wv, s, (uint32_t)4U * (uint32_t)1U * sizeof (Lib_IntVector_Intrinsics_vec256));
  Lib_IntVector_Intrinsics_vec256 *wv3 = wv + (uint32_t)3U * (uint32_t)1U;
  wv3[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv3[0U], mask);
  for (uint32_t i = (uint32_t)0U; i < (uint32_t)12U; i++)
  {
    uint32_t start_idx = i % (uint32_t)10U * (uint32_t)16U;
    KRML_CHECK_SIZE(sizeof (Lib_IntVector_Intrinsics_vec256), (uint32_t)4U * (uint32_t)1U);
    Lib_IntVector_Intrinsics_vec256 m_st[(uint32_t)4U * (uint32_t)1U];
    for (uint32_t _i = 0U; _i < (uint32_t)4U * (uint32_t)1U; ++_i)
      m_st[_i] = Lib_IntVector_Intrinsics_vec256_zero;
    Lib_IntVector_Intrinsics_vec256 *r0 = m_st + (uint32_t)0U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r1 = m_st + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r20 = m_st + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r30 = m_st + (uint32_t)3U * (uint32_t)1U;
    uint32_t s0 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx];
    uint32_t s1 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)1U];
    uint32_t s2 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)2U];
    uint32_t s3 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)3U];
    uint32_t s4 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)4U];
    uint32_t s5 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)5U];
    uint32_t s6 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)6U];
    uint32_t s7 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)7U];
    uint32_t s8 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)8U];
    uint32_t s9 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)9U];
    uint32_t s10 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)10U];
    uint32_t s11 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)11U];
    uint32_t s12 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)12U];
    uint32_t s13 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)13U];
    uint32_t s14 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)14U];
    uint32_t s15 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)15U];
    r0[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s0], m_w[s2], m_w[s4], m_w[s6]);
    r1[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s1], m_w[s3], m_w[s5], m_w[s7]);
    r20[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s8], m_w[s10], m_w[s12], m_w[s14]);
    r30[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s9], m_w[s11], m_w[s13], m_w[s15]);
    Lib_IntVector_Intrinsics_vec256 *x = m_st + (uint32_t)0U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *y = m_st + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *z = m_st + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *w = m_st + (uint32_t)3U * (uint32_t)1U;
    uint32_t a = (uint32_t)0U;
    uint32_t b0 = (uint32_t)1U;
    uint32_t c0 = (uint32_t)2U;
    uint32_t d0 = (uint32_t)3U;
    Lib_IntVector_Intrinsics_vec256 *wv_a0 = wv + a * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b0 = wv + b0 * (uint32_t)1U;
    wv_a0[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a0[0U], wv_b0[0U]);
    wv_a0[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a0[0U], x[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a1 = wv + d0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b1 = wv + a * (uint32_t)1U;
    wv_a1[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a1[0U], wv_b1[0U]);
    wv_a1[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a1[0U], (uint32_t)32U);
    Lib_IntVector_Intrinsics_vec256 *wv_a2 = wv + c0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b2 = wv + d0 * (uint32_t)1U;
    wv_a2[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a2[0U], wv_b2[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a3 = wv + b0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b3 = wv + c0 * (uint32_t)1U;
    wv_a3[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a3[0U], wv_b3[0U]);
    wv_a3[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a3[0U], (uint32_t)24U);
    Lib_IntVector_Intrinsics_vec256 *wv_a4 = wv + a * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b4 = wv + b0 * (uint32_t)1U;
    wv_a4[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a4[0U], wv_b4[0U]);
    wv_a4[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a4[0U], y[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a5 = wv + d0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b5 = wv + a * (uint32_t)1U;
    wv_a5[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a5[0U], wv_b5[0U]);
    wv_a5[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a5[0U], (uint32_t)16U);
    Lib_IntVector_Intrinsics_vec256 *wv_a6 = wv + c0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b6 = wv + d0 * (uint32_t)1U;
    wv_a6[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a6[0U], wv_b6[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a7 = wv + b0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b7 = wv + c0 * (uint32_t)1U;
    wv_a7[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a7[0U], wv_b7[0U]);
    wv_a7[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a7[0U], (uint32_t)63U);
    Lib_IntVector_Intrinsics_vec256 *r10 = wv + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r21 = wv + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r31 = wv + (uint32_t)3U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 v00 = r10[0U];
    Lib_IntVector_Intrinsics_vec256
    v1 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v00, (uint32_t)1U);
    r10[0U] = v1;
    Lib_IntVector_Intrinsics_vec256 v01 = r21[0U];
    Lib_IntVector_Intrinsics_vec256
    v10 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v01, (uint32_t)2U);
    r21[0U] = v10;
    Lib_IntVector_Intrinsics_vec256 v02 = r31[0U];
    Lib_IntVector_Intrinsics_vec256
    v11 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v02, (uint32_t)3U);
    r31[0U] = v11;
    uint32_t a0 = (uint32_t)0U;
    uint32_t b = (uint32_t)1U;
    uint32_t c = (uint32_t)2U;
    uint32_t d = (uint32_t)3U;
    Lib_IntVector_Intrinsics_vec256 *wv_a = wv + a0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b8 = wv + b * (uint32_t)1U;
    wv_a[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a[0U], wv_b8[0U]);
    wv_a[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a[0U], z[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a8 = wv + d * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b9 = wv + a0 * (uint32_t)1U;
    wv_a8[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a8[0U], wv_b9[0U]);
    wv_a8[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a8[0U], (uint32_t)32U);
    Lib_IntVector_Intrinsics_vec256 *wv_a9 = wv + c * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b10 = wv + d * (uint32_t)1U;
    wv_a9[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a9[0U], wv_b10[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a10 = wv + b * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b11 = wv + c * (uint32_t)1U;
    wv_a10[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a10[0U], wv_b11[0U]);
    wv_a10[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a10[0U], (uint32_t)24U);
    Lib_IntVector_Intrinsics_vec256 *wv_a11 = wv + a0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b12 = wv + b * (uint32_t)1U;
    wv_a11[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a11[0U], wv_b12[0U]);
    wv_a11[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a11[0U], w[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a12 = wv + d * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b13 = wv + a0 * (uint32_t)1U;
    wv_a12[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a12[0U], wv_b13[0U]);
    wv_a12[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a12[0U], (uint32_t)16U);
    Lib_IntVector_Intrinsics_vec256 *wv_a13 = wv + c * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b14 = wv + d * (uint32_t)1U;
    wv_a13[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a13[0U], wv_b14[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a14 = wv + b * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b = wv + c * (uint32_t)1U;
    wv_a14[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a14[0U], wv_b[0U]);
    wv_a14[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a14[0U], (uint32_t)63U);
    Lib_IntVector_Intrinsics_vec256 *r11 = wv + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r2 = wv + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r3 = wv + (uint32_t)3U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 v0 = r11[0U];
    Lib_IntVector_Intrinsics_vec256
    v12 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v0, (uint32_t)3U);
    r11[0U] = v12;
    Lib_IntVector_Intrinsics_vec256 v03 = r2[0U];
    Lib_IntVector_Intrinsics_vec256
    v13 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v03, (uint32_t)2U);
    r2[0U] = v13;
    Lib_IntVector_Intrinsics_vec256 v04 = r3[0U];
    Lib_IntVector_Intrinsics_vec256
    v14 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v04, (uint32_t)1U);
    r3[0U] = v14;
  }
  Lib_IntVector_Intrinsics_vec256 *s0 = s + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *s1 = s + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r0 = wv + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r1 = wv + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r2 = wv + (uint32_t)2U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r3 = wv + (uint32_t)3U * (uint32_t)1U;
  s0[0U] = Lib_IntVector_Intrinsics_vec256_xor(s0[0U], r0[0U]);
  s0[0U] = Lib_IntVector_Intrinsics_vec256_xor(s0[0U], r2[0U]);
  s1[0U] = Lib_IntVector_Intrinsics_vec256_xor(s1[0U], r1[0U]);
  s1[0U] = Lib_IntVector_Intrinsics_vec256_xor(s1[0U], r3[0U]);
  return FStar_UInt128_uint64_to_uint128((uint64_t)0U);
}

void Hacl_Hash_Blake2b_256_hash_blake2b_256(uint8_t *input, uint32_t input_len, uint8_t *dst)
{
  Hacl_Blake2b_256_blake2b((uint32_t)64U, dst, input_len, input, (uint32_t)0U, NULL);
}

static inline void
blake2b_update_block(
  Lib_IntVector_Intrinsics_vec256 *wv,
  Lib_IntVector_Intrinsics_vec256 *hash,
  bool flag,
  FStar_UInt128_uint128 totlen,
  uint8_t *d
)
{
  uint64_t m_w[16U] = { 0U };
  for (uint32_t i = (uint32_t)0U; i < (uint32_t)16U; i++)
  {
    uint64_t *os = m_w;
    uint8_t *bj = d + i * (uint32_t)8U;
    uint64_t u = load64_le(bj);
    uint64_t r = u;
    uint64_t x = r;
    os[i] = x;
  }
  Lib_IntVector_Intrinsics_vec256 mask = Lib_IntVector_Intrinsics_vec256_zero;
  uint64_t wv_14;
  if (flag)
  {
    wv_14 = (uint64_t)0xFFFFFFFFFFFFFFFFU;
  }
  else
  {
    wv_14 = (uint64_t)0U;
  }
  uint64_t wv_15 = (uint64_t)0U;
  mask =
    Lib_IntVector_Intrinsics_vec256_load64s(FStar_UInt128_uint128_to_uint64(totlen),
      FStar_UInt128_uint128_to_uint64(FStar_UInt128_shift_right(totlen, (uint32_t)64U)),
      wv_14,
      wv_15);
  memcpy(wv, hash, (uint32_t)4U * (uint32_t)1U * sizeof (Lib_IntVector_Intrinsics_vec256));
  Lib_IntVector_Intrinsics_vec256 *wv3 = wv + (uint32_t)3U * (uint32_t)1U;
  wv3[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv3[0U], mask);
  for (uint32_t i = (uint32_t)0U; i < (uint32_t)12U; i++)
  {
    uint32_t start_idx = i % (uint32_t)10U * (uint32_t)16U;
    KRML_CHECK_SIZE(sizeof (Lib_IntVector_Intrinsics_vec256), (uint32_t)4U * (uint32_t)1U);
    Lib_IntVector_Intrinsics_vec256 m_st[(uint32_t)4U * (uint32_t)1U];
    for (uint32_t _i = 0U; _i < (uint32_t)4U * (uint32_t)1U; ++_i)
      m_st[_i] = Lib_IntVector_Intrinsics_vec256_zero;
    Lib_IntVector_Intrinsics_vec256 *r0 = m_st + (uint32_t)0U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r1 = m_st + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r20 = m_st + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r30 = m_st + (uint32_t)3U * (uint32_t)1U;
    uint32_t s0 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx];
    uint32_t s1 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)1U];
    uint32_t s2 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)2U];
    uint32_t s3 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)3U];
    uint32_t s4 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)4U];
    uint32_t s5 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)5U];
    uint32_t s6 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)6U];
    uint32_t s7 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)7U];
    uint32_t s8 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)8U];
    uint32_t s9 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)9U];
    uint32_t s10 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)10U];
    uint32_t s11 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)11U];
    uint32_t s12 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)12U];
    uint32_t s13 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)13U];
    uint32_t s14 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)14U];
    uint32_t s15 = Hacl_Impl_Blake2_Constants_sigmaTable[start_idx + (uint32_t)15U];
    r0[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s0], m_w[s2], m_w[s4], m_w[s6]);
    r1[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s1], m_w[s3], m_w[s5], m_w[s7]);
    r20[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s8], m_w[s10], m_w[s12], m_w[s14]);
    r30[0U] = Lib_IntVector_Intrinsics_vec256_load64s(m_w[s9], m_w[s11], m_w[s13], m_w[s15]);
    Lib_IntVector_Intrinsics_vec256 *x = m_st + (uint32_t)0U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *y = m_st + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *z = m_st + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *w = m_st + (uint32_t)3U * (uint32_t)1U;
    uint32_t a = (uint32_t)0U;
    uint32_t b0 = (uint32_t)1U;
    uint32_t c0 = (uint32_t)2U;
    uint32_t d10 = (uint32_t)3U;
    Lib_IntVector_Intrinsics_vec256 *wv_a0 = wv + a * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b0 = wv + b0 * (uint32_t)1U;
    wv_a0[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a0[0U], wv_b0[0U]);
    wv_a0[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a0[0U], x[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a1 = wv + d10 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b1 = wv + a * (uint32_t)1U;
    wv_a1[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a1[0U], wv_b1[0U]);
    wv_a1[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a1[0U], (uint32_t)32U);
    Lib_IntVector_Intrinsics_vec256 *wv_a2 = wv + c0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b2 = wv + d10 * (uint32_t)1U;
    wv_a2[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a2[0U], wv_b2[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a3 = wv + b0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b3 = wv + c0 * (uint32_t)1U;
    wv_a3[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a3[0U], wv_b3[0U]);
    wv_a3[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a3[0U], (uint32_t)24U);
    Lib_IntVector_Intrinsics_vec256 *wv_a4 = wv + a * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b4 = wv + b0 * (uint32_t)1U;
    wv_a4[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a4[0U], wv_b4[0U]);
    wv_a4[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a4[0U], y[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a5 = wv + d10 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b5 = wv + a * (uint32_t)1U;
    wv_a5[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a5[0U], wv_b5[0U]);
    wv_a5[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a5[0U], (uint32_t)16U);
    Lib_IntVector_Intrinsics_vec256 *wv_a6 = wv + c0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b6 = wv + d10 * (uint32_t)1U;
    wv_a6[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a6[0U], wv_b6[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a7 = wv + b0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b7 = wv + c0 * (uint32_t)1U;
    wv_a7[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a7[0U], wv_b7[0U]);
    wv_a7[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a7[0U], (uint32_t)63U);
    Lib_IntVector_Intrinsics_vec256 *r10 = wv + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r21 = wv + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r31 = wv + (uint32_t)3U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 v00 = r10[0U];
    Lib_IntVector_Intrinsics_vec256
    v1 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v00, (uint32_t)1U);
    r10[0U] = v1;
    Lib_IntVector_Intrinsics_vec256 v01 = r21[0U];
    Lib_IntVector_Intrinsics_vec256
    v10 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v01, (uint32_t)2U);
    r21[0U] = v10;
    Lib_IntVector_Intrinsics_vec256 v02 = r31[0U];
    Lib_IntVector_Intrinsics_vec256
    v11 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v02, (uint32_t)3U);
    r31[0U] = v11;
    uint32_t a0 = (uint32_t)0U;
    uint32_t b = (uint32_t)1U;
    uint32_t c = (uint32_t)2U;
    uint32_t d1 = (uint32_t)3U;
    Lib_IntVector_Intrinsics_vec256 *wv_a = wv + a0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b8 = wv + b * (uint32_t)1U;
    wv_a[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a[0U], wv_b8[0U]);
    wv_a[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a[0U], z[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a8 = wv + d1 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b9 = wv + a0 * (uint32_t)1U;
    wv_a8[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a8[0U], wv_b9[0U]);
    wv_a8[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a8[0U], (uint32_t)32U);
    Lib_IntVector_Intrinsics_vec256 *wv_a9 = wv + c * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b10 = wv + d1 * (uint32_t)1U;
    wv_a9[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a9[0U], wv_b10[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a10 = wv + b * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b11 = wv + c * (uint32_t)1U;
    wv_a10[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a10[0U], wv_b11[0U]);
    wv_a10[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a10[0U], (uint32_t)24U);
    Lib_IntVector_Intrinsics_vec256 *wv_a11 = wv + a0 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b12 = wv + b * (uint32_t)1U;
    wv_a11[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a11[0U], wv_b12[0U]);
    wv_a11[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a11[0U], w[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a12 = wv + d1 * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b13 = wv + a0 * (uint32_t)1U;
    wv_a12[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a12[0U], wv_b13[0U]);
    wv_a12[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a12[0U], (uint32_t)16U);
    Lib_IntVector_Intrinsics_vec256 *wv_a13 = wv + c * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b14 = wv + d1 * (uint32_t)1U;
    wv_a13[0U] = Lib_IntVector_Intrinsics_vec256_add64(wv_a13[0U], wv_b14[0U]);
    Lib_IntVector_Intrinsics_vec256 *wv_a14 = wv + b * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *wv_b = wv + c * (uint32_t)1U;
    wv_a14[0U] = Lib_IntVector_Intrinsics_vec256_xor(wv_a14[0U], wv_b[0U]);
    wv_a14[0U] = Lib_IntVector_Intrinsics_vec256_rotate_right64(wv_a14[0U], (uint32_t)63U);
    Lib_IntVector_Intrinsics_vec256 *r11 = wv + (uint32_t)1U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r2 = wv + (uint32_t)2U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 *r3 = wv + (uint32_t)3U * (uint32_t)1U;
    Lib_IntVector_Intrinsics_vec256 v0 = r11[0U];
    Lib_IntVector_Intrinsics_vec256
    v12 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v0, (uint32_t)3U);
    r11[0U] = v12;
    Lib_IntVector_Intrinsics_vec256 v03 = r2[0U];
    Lib_IntVector_Intrinsics_vec256
    v13 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v03, (uint32_t)2U);
    r2[0U] = v13;
    Lib_IntVector_Intrinsics_vec256 v04 = r3[0U];
    Lib_IntVector_Intrinsics_vec256
    v14 = Lib_IntVector_Intrinsics_vec256_rotate_right_lanes64(v04, (uint32_t)1U);
    r3[0U] = v14;
  }
  Lib_IntVector_Intrinsics_vec256 *s0 = hash + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *s1 = hash + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r0 = wv + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r1 = wv + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r2 = wv + (uint32_t)2U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r3 = wv + (uint32_t)3U * (uint32_t)1U;
  s0[0U] = Lib_IntVector_Intrinsics_vec256_xor(s0[0U], r0[0U]);
  s0[0U] = Lib_IntVector_Intrinsics_vec256_xor(s0[0U], r2[0U]);
  s1[0U] = Lib_IntVector_Intrinsics_vec256_xor(s1[0U], r1[0U]);
  s1[0U] = Lib_IntVector_Intrinsics_vec256_xor(s1[0U], r3[0U]);
}

inline void
Hacl_Blake2b_256_blake2b_init(Lib_IntVector_Intrinsics_vec256 *hash, uint32_t kk, uint32_t nn)
{
  Lib_IntVector_Intrinsics_vec256 *r0 = hash + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r1 = hash + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r2 = hash + (uint32_t)2U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *r3 = hash + (uint32_t)3U * (uint32_t)1U;
  uint64_t iv0 = Hacl_Impl_Blake2_Constants_ivTable_B[0U];
  uint64_t iv1 = Hacl_Impl_Blake2_Constants_ivTable_B[1U];
  uint64_t iv2 = Hacl_Impl_Blake2_Constants_ivTable_B[2U];
  uint64_t iv3 = Hacl_Impl_Blake2_Constants_ivTable_B[3U];
  uint64_t iv4 = Hacl_Impl_Blake2_Constants_ivTable_B[4U];
  uint64_t iv5 = Hacl_Impl_Blake2_Constants_ivTable_B[5U];
  uint64_t iv6 = Hacl_Impl_Blake2_Constants_ivTable_B[6U];
  uint64_t iv7 = Hacl_Impl_Blake2_Constants_ivTable_B[7U];
  r2[0U] = Lib_IntVector_Intrinsics_vec256_load64s(iv0, iv1, iv2, iv3);
  r3[0U] = Lib_IntVector_Intrinsics_vec256_load64s(iv4, iv5, iv6, iv7);
  uint64_t kk_shift_8 = (uint64_t)kk << (uint32_t)8U;
  uint64_t iv0_ = iv0 ^ ((uint64_t)0x01010000U ^ (kk_shift_8 ^ (uint64_t)nn));
  r0[0U] = Lib_IntVector_Intrinsics_vec256_load64s(iv0_, iv1, iv2, iv3);
  r1[0U] = Lib_IntVector_Intrinsics_vec256_load64s(iv4, iv5, iv6, iv7);
}

inline void
Hacl_Blake2b_256_blake2b_update_key(
  Lib_IntVector_Intrinsics_vec256 *wv,
  Lib_IntVector_Intrinsics_vec256 *hash,
  uint32_t kk,
  uint8_t *k,
  uint32_t ll
)
{
  FStar_UInt128_uint128 lb = FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)128U);
  uint8_t b[128U] = { 0U };
  memcpy(b, k, kk * sizeof (uint8_t));
  if (ll == (uint32_t)0U)
  {
    blake2b_update_block(wv, hash, true, lb, b);
  }
  else
  {
    blake2b_update_block(wv, hash, false, lb, b);
  }
  Lib_Memzero0_memzero(b, (uint32_t)128U * sizeof (b[0U]));
}

inline void
Hacl_Blake2b_256_blake2b_update_multi(
  uint32_t len,
  Lib_IntVector_Intrinsics_vec256 *wv,
  Lib_IntVector_Intrinsics_vec256 *hash,
  FStar_UInt128_uint128 prev,
  uint8_t *blocks,
  uint32_t nb
)
{
  for (uint32_t i = (uint32_t)0U; i < nb; i++)
  {
    FStar_UInt128_uint128
    totlen =
      FStar_UInt128_add_mod(prev,
        FStar_UInt128_uint64_to_uint128((uint64_t)((i + (uint32_t)1U) * (uint32_t)128U)));
    uint8_t *b = blocks + i * (uint32_t)128U;
    blake2b_update_block(wv, hash, false, totlen, b);
  }
}

inline void
Hacl_Blake2b_256_blake2b_update_last(
  uint32_t len,
  Lib_IntVector_Intrinsics_vec256 *wv,
  Lib_IntVector_Intrinsics_vec256 *hash,
  FStar_UInt128_uint128 prev,
  uint32_t rem,
  uint8_t *d
)
{
  uint8_t b[128U] = { 0U };
  uint8_t *last = d + len - rem;
  memcpy(b, last, rem * sizeof (uint8_t));
  FStar_UInt128_uint128
  totlen = FStar_UInt128_add_mod(prev, FStar_UInt128_uint64_to_uint128((uint64_t)len));
  blake2b_update_block(wv, hash, true, totlen, b);
  Lib_Memzero0_memzero(b, (uint32_t)128U * sizeof (b[0U]));
}

static inline void
blake2b_update_blocks(
  uint32_t len,
  Lib_IntVector_Intrinsics_vec256 *wv,
  Lib_IntVector_Intrinsics_vec256 *hash,
  FStar_UInt128_uint128 prev,
  uint8_t *blocks
)
{
  uint32_t nb0 = len / (uint32_t)128U;
  uint32_t rem0 = len % (uint32_t)128U;
  K___uint32_t_uint32_t scrut;
  if (rem0 == (uint32_t)0U && nb0 > (uint32_t)0U)
  {
    uint32_t nb_ = nb0 - (uint32_t)1U;
    uint32_t rem_ = (uint32_t)128U;
    scrut = ((K___uint32_t_uint32_t){ .fst = nb_, .snd = rem_ });
  }
  else
  {
    scrut = ((K___uint32_t_uint32_t){ .fst = nb0, .snd = rem0 });
  }
  uint32_t nb = scrut.fst;
  uint32_t rem = scrut.snd;
  Hacl_Blake2b_256_blake2b_update_multi(len, wv, hash, prev, blocks, nb);
  Hacl_Blake2b_256_blake2b_update_last(len, wv, hash, prev, rem, blocks);
}

static inline void
blake2b_update(
  Lib_IntVector_Intrinsics_vec256 *wv,
  Lib_IntVector_Intrinsics_vec256 *hash,
  uint32_t kk,
  uint8_t *k,
  uint32_t ll,
  uint8_t *d
)
{
  FStar_UInt128_uint128 lb = FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)128U);
  if (kk > (uint32_t)0U)
  {
    Hacl_Blake2b_256_blake2b_update_key(wv, hash, kk, k, ll);
    if (!(ll == (uint32_t)0U))
    {
      blake2b_update_blocks(ll, wv, hash, lb, d);
      return;
    }
    return;
  }
  blake2b_update_blocks(ll,
    wv,
    hash,
    FStar_UInt128_uint64_to_uint128((uint64_t)(uint32_t)0U),
    d);
}

inline void
Hacl_Blake2b_256_blake2b_finish(
  uint32_t nn,
  uint8_t *output,
  Lib_IntVector_Intrinsics_vec256 *hash
)
{
  uint32_t double_row = (uint32_t)2U * ((uint32_t)4U * (uint32_t)8U);
  KRML_CHECK_SIZE(sizeof (uint8_t), double_row);
  uint8_t b[double_row];
  memset(b, 0U, double_row * sizeof (uint8_t));
  uint8_t *first = b;
  uint8_t *second = b + (uint32_t)4U * (uint32_t)8U;
  Lib_IntVector_Intrinsics_vec256 *row0 = hash + (uint32_t)0U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 *row1 = hash + (uint32_t)1U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256_store64_le(first, row0[0U]);
  Lib_IntVector_Intrinsics_vec256_store64_le(second, row1[0U]);
  uint8_t *final = b;
  memcpy(output, final, nn * sizeof (uint8_t));
  Lib_Memzero0_memzero(b, double_row * sizeof (b[0U]));
}

void
Hacl_Blake2b_256_blake2b(
  uint32_t nn,
  uint8_t *output,
  uint32_t ll,
  uint8_t *d,
  uint32_t kk,
  uint8_t *k
)
{
  uint32_t stlen = (uint32_t)4U * (uint32_t)1U;
  Lib_IntVector_Intrinsics_vec256 stzero = Lib_IntVector_Intrinsics_vec256_zero;
  KRML_CHECK_SIZE(sizeof (Lib_IntVector_Intrinsics_vec256), stlen);
  Lib_IntVector_Intrinsics_vec256 b[stlen];
  for (uint32_t _i = 0U; _i < stlen; ++_i)
    b[_i] = stzero;
  KRML_CHECK_SIZE(sizeof (Lib_IntVector_Intrinsics_vec256), stlen);
  Lib_IntVector_Intrinsics_vec256 b1[stlen];
  for (uint32_t _i = 0U; _i < stlen; ++_i)
    b1[_i] = stzero;
  Hacl_Blake2b_256_blake2b_init(b, kk, nn);
  blake2b_update(b1, b, kk, k, ll, d);
  Hacl_Blake2b_256_blake2b_finish(nn, output, b);
  Lib_Memzero0_memzero(b1, stlen * sizeof (b1[0U]));
  Lib_Memzero0_memzero(b, stlen * sizeof (b[0U]));
}