user: Demonstrate the C code that generates the assembly output below:

```asm
<crypto_aead_encrypt>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0xb8,%rsp
  mov    %rdi,(%rsp)
  mov    %rsi,0x28(%rsp)
  mov    %rdx,%r15
  mov    %rcx,%r12
  mov    %r8,%r14
  mov    %r9,0x8(%rsp)
  mov    0xf8(%rsp),%rbp
  mov    0x100(%rsp),%rax
  mov    %rax,0x20(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0xa8(%rsp)
  xor    %eax,%eax
  movq   $0x0,0x36(%rsp)
  test   %rcx,%rcx
  je     L87
  lea    0x5(%rcx),%rax
  mov    %rax,%rsi
  movabs $0xaaaaaaaaaaaaaaab,%rdx
  mov    %rax,0x10(%rsp)
  mul    %rdx
  shr    $0x2,%rdx
  lea    (%rdx,%rdx,2),%rax
  add    %rax,%rax
  cmp    %rax,%rsi
  je     L164
  movabs $0xaaaaaaaaaaaaaaab,%rdx
  mov    %rsi,%rax
  mul    %rdx
  shr    $0x2,%rdx
  lea    0x3(%rdx,%rdx,2),%rax
  add    %rax,%rax
  mov    %rax,0x10(%rsp)
L164:
  mov    0x10(%rsp),%rbx
  mov    %rbx,%rdi
  call   <malloc@plt>
  mov    %rax,%r13
  mov    %rbx,%rcx
  mov    %rax,%rdx
  mov    %r12,%rsi
  mov    %r15,%rdi
  call   <padding@plt>
L19:
  movq   $0x0,0x18(%rsp)
  mov    0x8(%rsp),%rax
  test   %rax,%rax
  je     L45
  lea    0x5(%rax),%rbx
  movabs $0xaaaaaaaaaaaaaaab,%rdx
  mov    %rbx,%rax
  mul    %rdx
  shr    $0x2,%rdx
  lea    (%rdx,%rdx,2),%rax
  add    %rax,%rax
  cmp    %rax,%rbx
  je     L190
  movabs $0xaaaaaaaaaaaaaaab,%rdx
  mov    %rbx,%rax
  mul    %rdx
  shr    $0x2,%rdx
  lea    0x3(%rdx,%rdx,2),%rax
  lea    (%rax,%rax,1),%rbx
L190:
  mov    %rbx,%rdi
  call   <malloc@plt>
  mov    %rax,0x18(%rsp)
  mov    %rbx,%rcx
  mov    %rax,%rdx
  mov    0x8(%rsp),%rsi
  mov    %r14,%rdi
  call   <padding@plt>
  mov    %rbx,0x8(%rsp)
L45:
  lea    0x50(%rsp),%rbx
  mov    %rbx,%rdx
  mov    0x20(%rsp),%r14
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <E@plt>
  lea    0x58(%rsp),%rdx
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <E@plt>
  mov    $0x0,%eax
  lea    0x56(%rsp),%rcx
L65:
  movzbl (%rcx,%rax,1),%edx
  mov    %dl,0x46(%rsp,%rax,1)
  add    $0x1,%rax
  cmp    $0xa,%rax
  jne    L65
  lea    0x36(%rsp),%rdi
  lea    0x50(%rsp),%rsi
  mov    %rdi,%rdx
  call   <E@plt>
  cmpq   $0x0,0x8(%rsp)
  je     L40
  mov    $0x0,%ebp
  lea    0x60(%rsp),%r14
  jmp    L44
L87:
  mov    $0x0,%edi
  call   <malloc@plt>
  mov    %rax,%r13
  mov    $0x0,%ecx
  mov    %rax,%rdx
  mov    $0x0,%esi
  mov    %r15,%rdi
  call   <padding@plt>
  mov    %r12,0x10(%rsp)
  jmp    L19
L181:
  add    $0x6,%rbp
  cmp    %rbp,0x8(%rsp)
  jbe    L40
L44:
  lea    0x46(%rsp),%rdi
  mov    %r14,%rsi
  call   <KS@plt>
  lea    0x36(%rsp),%rbx
  mov    %rbx,%rdx
  mov    %r14,%rsi
  mov    %rbx,%rdi
  call   <G@plt>
  mov    0x18(%rsp),%rax
  add    %rbp,%rax
  lea    0x3c(%rsp),%rcx
L2:
  movzbl (%rax),%edx
  xor    %dl,0x2(%rbx)
  add    $0x1,%rbx
  add    $0x1,%rax
  cmp    %rcx,%rbx
  jne    L2
  jmp    L181
L40:
  cmpq   $0x0,0x10(%rsp)
  je     L51
  lea    0x30(%rsp),%r14
  mov    $0x6,%ebp
  lea    0x60(%rsp),%rax
  mov    %rax,0x8(%rsp)
  jmp    L142
L127:
  add    $0x1,%rbx
  add    $0x1,%rax
  cmp    %rbp,%rax
  je     L151
L124:
  movzbl 0x0(%r13,%rax,1),%edx
  xor    %dl,0x2(%rbx)
  cmp    %r12,%rax
  jae    L127
  movzbl (%r15,%rax,1),%edx
  xor    (%r14,%rax,1),%dl
  mov    (%rsp),%rsi
  mov    %dl,(%rsi,%rax,1)
  jmp    L127
L151:
  lea    0x6(%rbp),%rax
  sub    $0x6,%r14
  cmp    %rbp,0x10(%rsp)
  jbe    L51
  mov    %rax,%rbp
L142:
  lea    0x46(%rsp),%rdi
  mov    0x8(%rsp),%rsi
  call   <KS@plt>
  lea    0x30(%rsp),%rcx
  lea    0x36(%rsp),%rbx
  mov    %rbx,%rdx
  mov    0x8(%rsp),%rsi
  mov    %rbx,%rdi
  call   <Gleak@plt>
  lea    -0x6(%rbp),%rax
  jmp    L124
L51:
  lea    0x3e(%rsp),%rdx
  lea    0x36(%rsp),%rdi
  mov    0x20(%rsp),%rsi
  call   <E@plt>
  mov    $0x0,%eax
  mov    (%rsp),%rdx
  add    %r12,%rdx
L12:
  movzbl 0x3e(%rsp,%rax,1),%ecx
  mov    %cl,(%rdx,%rax,1)
  add    $0x1,%rax
  cmp    $0x8,%rax
  jne    L12
  add    $0x8,%r12
  mov    0x28(%rsp),%rax
  mov    %r12,(%rax)
  mov    0xa8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L106
  mov    $0x0,%eax
  add    $0xb8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L106:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int crypto_aead_encrypt(unsigned char *c, unsigned long long *clen, const unsigned char *m, unsigned long long mlen, const unsigned char *ad, unsigned long long adlen, const unsigned char *nsec, const unsigned char *npub, const unsigned char *k) {
  unsigned char *mpad;
  unsigned long long mpadlen;
  unsigned char *adpad = NULL;
  unsigned long long adpadlen;
  unsigned char ukey[16];
  unsigned char datastate[8] = {0}, keystate[10], leak[6];
  unsigned char subkey[16 * 4];
  unsigned char tag[8];
  int i, j;
  if (mlen == 0) {
    mpadlen = 0;
    mpad = (unsigned char *)malloc(mpadlen);
    padding(m, mlen, mpad, mpadlen);
  } else {
    if ((mlen + 5) % 6 == 0) {
      mpadlen = mlen + 5;
    } else {
      mpadlen = ((mlen + 5) / 6 + 1) * 6;
    }
    mpad = (unsigned char *)malloc(mpadlen);
    padding(m, mlen, mpad, mpadlen);
  }
  if (adlen == 0) {
    adpadlen = 0;
  } else {
    if ((adlen + 5) % 6 == 0) {
      adpadlen = adlen + 5;
    } else {
      adpadlen = ((adlen + 5) / 6 + 1) * 6;
    }
    adpad = (unsigned char *)malloc(adpadlen);
    padding(ad, adlen, adpad, adpadlen);
  }
  E(npub, k, ukey);
  E(ukey, k, ukey + 8);
  for (i = 0; i < 10; i++) {
    keystate[i] = ukey[i + 6];
  }
  E(datastate, ukey, datastate);
  for (i = 0; i < adpadlen; i += 6) {
    KS(keystate, subkey);
    G(datastate, subkey, datastate);
    for (j = 0; j < 6; j++) {
      datastate[j + 2] ^= adpad[i + j];
    }
  }
  for (i = 0; i < mpadlen; i += 6) {
    KS(keystate, subkey);
    Gleak(datastate, subkey, datastate, leak);
    for (j = 0; j < 6; j++) {
      datastate[j + 2] ^= mpad[i + j];
      if ((i + j) < mlen) {
        c[i + j] = m[i + j] ^ leak[j];
      }
    }
  }
  E(datastate, k, tag);
  for (i = 0; i < 8; i++) {
    c[mlen + i] = tag[i];
  }
  *clen = mlen + 8;
  return 0;
}
```