concrete/compiler/lib/Runtime/wrappers.cpp

// Part of the Concrete Compiler Project, under the BSD3 License with Zama
// Exceptions. See
// https://github.com/zama-ai/concrete-compiler-internal/blob/main/LICENSE.txt
// for license information.

#include "concretelang/Runtime/wrappers.h"
#include <assert.h>
#include <stdio.h>
#include <string.h>

void memref_expand_lut_in_trivial_glwe_ct_u64(
    uint64_t *glwe_ct_allocated, uint64_t *glwe_ct_aligned,
    uint64_t glwe_ct_offset, uint64_t glwe_ct_size, uint64_t glwe_ct_stride,
    uint32_t poly_size, uint32_t glwe_dimension, uint32_t out_precision,
    uint64_t *lut_allocated, uint64_t *lut_aligned, uint64_t lut_offset,
    uint64_t lut_size, uint64_t lut_stride) {

  assert(lut_stride == 1 && "Runtime: stride not equal to 1, check "
                            "memref_expand_lut_in_trivial_glwe_ct_u64");

  assert(glwe_ct_stride == 1 && "Runtime: stride not equal to 1, check "
                                "memref_expand_lut_in_trivial_glwe_ct_u64");

  expand_lut_in_trivial_glwe_ct_u64(glwe_ct_aligned, poly_size, glwe_dimension,
                                    out_precision, lut_aligned, lut_size);

  return;
}

void memref_add_lwe_ciphertexts_u64(
    uint64_t *out_allocated, uint64_t *out_aligned, uint64_t out_offset,
    uint64_t out_size, uint64_t out_stride, uint64_t *ct0_allocated,
    uint64_t *ct0_aligned, uint64_t ct0_offset, uint64_t ct0_size,
    uint64_t ct0_stride, uint64_t *ct1_allocated, uint64_t *ct1_aligned,
    uint64_t ct1_offset, uint64_t ct1_size, uint64_t ct1_stride) {
  assert(out_size == ct0_size && out_size == ct1_size &&
         "size of lwe buffer are incompatible");
  size_t lwe_dimension = {out_size - 1};
  add_two_lwe_ciphertexts_u64(out_aligned + out_offset,
                              ct0_aligned + ct0_offset,
                              ct1_aligned + ct1_offset, lwe_dimension);
}

void memref_add_plaintext_lwe_ciphertext_u64(
    uint64_t *out_allocated, uint64_t *out_aligned, uint64_t out_offset,
    uint64_t out_size, uint64_t out_stride, uint64_t *ct0_allocated,
    uint64_t *ct0_aligned, uint64_t ct0_offset, uint64_t ct0_size,
    uint64_t ct0_stride, uint64_t plaintext) {
  assert(out_size == ct0_size && "size of lwe buffer are incompatible");
  size_t lwe_dimension = {out_size - 1};
  add_plaintext_to_lwe_ciphertext_u64(out_aligned + out_offset,
                                      ct0_aligned + ct0_offset, plaintext,
                                      lwe_dimension);
}

void memref_mul_cleartext_lwe_ciphertext_u64(
    uint64_t *out_allocated, uint64_t *out_aligned, uint64_t out_offset,
    uint64_t out_size, uint64_t out_stride, uint64_t *ct0_allocated,
    uint64_t *ct0_aligned, uint64_t ct0_offset, uint64_t ct0_size,
    uint64_t ct0_stride, uint64_t cleartext) {
  assert(out_size == ct0_size && "size of lwe buffer are incompatible");
  size_t lwe_dimension = {out_size - 1};
  mul_cleartext_lwe_ciphertext_u64(out_aligned + out_offset,
                                   ct0_aligned + ct0_offset, cleartext,
                                   lwe_dimension);
}

void memref_negate_lwe_ciphertext_u64(
    uint64_t *out_allocated, uint64_t *out_aligned, uint64_t out_offset,
    uint64_t out_size, uint64_t out_stride, uint64_t *ct0_allocated,
    uint64_t *ct0_aligned, uint64_t ct0_offset, uint64_t ct0_size,
    uint64_t ct0_stride) {
  assert(out_size == ct0_size && "size of lwe buffer are incompatible");
  size_t lwe_dimension = {out_size - 1};
  neg_lwe_ciphertext_u64(out_aligned + out_offset, ct0_aligned + ct0_offset,
                         lwe_dimension);
}

void memref_keyswitch_lwe_u64(uint64_t *out_allocated, uint64_t *out_aligned,
                              uint64_t out_offset, uint64_t out_size,
                              uint64_t out_stride, uint64_t *ct0_allocated,
                              uint64_t *ct0_aligned, uint64_t ct0_offset,
                              uint64_t ct0_size, uint64_t ct0_stride,
                              mlir::concretelang::RuntimeContext *context) {
  keyswitch_lwe_u64(get_engine(context), get_keyswitch_key_u64(context),
                    out_aligned + out_offset, ct0_aligned + ct0_offset);
}

void memref_bootstrap_lwe_u64(
    uint64_t *out_allocated, uint64_t *out_aligned, uint64_t out_offset,
    uint64_t out_size, uint64_t out_stride, uint64_t *ct0_allocated,
    uint64_t *ct0_aligned, uint64_t ct0_offset, uint64_t ct0_size,
    uint64_t ct0_stride, uint64_t *glwe_ct_allocated, uint64_t *glwe_ct_aligned,
    uint64_t glwe_ct_offset, uint64_t glwe_ct_size, uint64_t glwe_ct_stride,
    mlir::concretelang::RuntimeContext *context) {
  bootstrap_lwe_u64(get_engine(context), get_bootstrap_key_u64(context),
                    out_aligned + out_offset, ct0_aligned + ct0_offset,
                    glwe_ct_aligned + glwe_ct_offset);
}

void memref_copy_one_rank(uint64_t *src_allocated, uint64_t *src_aligned,
                          uint64_t src_offset, uint64_t src_size,
                          uint64_t src_stride, uint64_t *dst_allocated,
                          uint64_t *dst_aligned, uint64_t dst_offset,
                          uint64_t dst_size, uint64_t dst_stride) {
  assert(src_size == dst_size && "memref_copy_one_rank size differs");
  if (src_stride == dst_stride) {
    memcpy(dst_aligned + dst_offset, src_aligned + src_offset,
           src_size * sizeof(uint64_t));
    return;
  }
  for (size_t i = 0; i < src_size; i++) {
    dst_aligned[dst_offset + i * dst_stride] =
        src_aligned[src_offset + i * src_stride];
  }
}