1use base2k::{Encoding, FFT64, SvpPPolOps, VecZnx, VecZnxApi, VmpPMat};
  2use rlwe::{
  3    ciphertext::{Ciphertext, new_gadget_ciphertext},
  4    decryptor::decrypt_rlwe_thread_safe,
  5    encryptor::{encrypt_grlwe_sk_thread_safe, encrypt_grlwe_sk_tmp_bytes},
  6    evaluator::{gadget_product_inplace, gadget_product_tmp_bytes},
  7    key_generator::gen_switching_key_thread_safe_tmp_bytes,
  8    keys::SecretKey,
  9    parameters::{Parameters, ParametersLiteral},
 10    plaintext::Plaintext,
 11};
 12use sampling::source::Source;
 13
 14fn main() {
 15    let params_lit: ParametersLiteral = ParametersLiteral {
 16        log_n: 4,
 17        log_q: 68,
 18        log_p: 17,
 19        log_base2k: 17,
 20        log_scale: 20,
 21        xe: 3.2,
 22        xs: 8,
 23    };
 24
 25    let params: Parameters = Parameters::new::<FFT64>(&params_lit);
 26
 27    let mut tmp_bytes: Vec<u8> = vec![
 28        0u8;
 29        params.decrypt_rlwe_thread_safe_tmp_byte(params.log_q())
 30            | params.encrypt_rlwe_sk_tmp_bytes(params.log_q())
 31            | gen_switching_key_thread_safe_tmp_bytes(
 32                params.module(),
 33                params.log_base2k(),
 34                params.limbs_q(),
 35                params.log_q()
 36            )
 37            | gadget_product_tmp_bytes(
 38                params.module(),
 39                params.log_base2k(),
 40                params.log_q(),
 41                params.log_q(),
 42                params.limbs_q(),
 43                params.log_qp()
 44            )
 45            | encrypt_grlwe_sk_tmp_bytes(
 46                params.module(),
 47                params.log_base2k(),
 48                params.limbs_qp(),
 49                params.log_qp()
 50            )
 51    ];
 52
 53    let mut source: Source = Source::new([3; 32]);
 54
 55    let mut sk0: SecretKey = SecretKey::new(params.module());
 56    let mut sk1: SecretKey = SecretKey::new(params.module());
 57
 58    sk0.fill_ternary_hw(params.xs(), &mut source);
 59    sk1.fill_ternary_hw(params.xs(), &mut source);
 60
 61    let mut want = vec![i64::default(); params.n()];
 62
 63    want.iter_mut().enumerate().for_each(|(i, x)| *x = i as i64);
 64
 65    let log_base2k = params.log_base2k();
 66
 67    let log_k: usize = params.log_q() - 2 * log_base2k;
 68
 69    let mut source_xe: Source = Source::new([4; 32]);
 70    let mut source_xa: Source = Source::new([5; 32]);
 71
 72    let mut sk0_svp_ppol: base2k::SvpPPol = params.module().new_svp_ppol();
 73    params.module().svp_prepare(&mut sk0_svp_ppol, &sk0.0);
 74
 75    let mut sk1_svp_ppol: base2k::SvpPPol = params.module().new_svp_ppol();
 76    params.module().svp_prepare(&mut sk1_svp_ppol, &sk1.0);
 77
 78    let mut gadget_ct: Ciphertext<VmpPMat> = new_gadget_ciphertext(
 79        params.module(),
 80        log_base2k,
 81        params.limbs_q(),
 82        params.log_qp(),
 83    );
 84
 85    encrypt_grlwe_sk_thread_safe(
 86        params.module(),
 87        &mut gadget_ct,
 88        &sk0.0,
 89        &sk1_svp_ppol,
 90        &mut source_xa,
 91        &mut source_xe,
 92        params.xe(),
 93        &mut tmp_bytes,
 94    );
 95
 96    let mut pt: Plaintext<VecZnx> =
 97        Plaintext::<VecZnx>::new(params.module(), params.log_base2k(), params.log_q());
 98
 99    let mut want = vec![i64::default(); params.n()];
100    want.iter_mut().enumerate().for_each(|(i, x)| *x = i as i64);
101    pt.0.value[0].encode_vec_i64(log_base2k, log_k, &want, 32);
102    pt.0.value[0].normalize(log_base2k, &mut tmp_bytes);
103
104    let mut ct: Ciphertext<VecZnx> = params.new_ciphertext(params.log_q());
105
106    params.encrypt_rlwe_sk_thread_safe(
107        &mut ct,
108        Some(&pt),
109        &sk0_svp_ppol,
110        &mut source_xa,
111        &mut source_xe,
112        &mut tmp_bytes,
113    );
114
115    gadget_product_inplace::<true, _>(params.module(), &mut ct.0, &gadget_ct, &mut tmp_bytes);
116
117    println!("ct.limbs()={}", ct.cols());
118    println!("gadget_ct.rows()={}", gadget_ct.rows());
119    println!("gadget_ct.cols()={}", gadget_ct.cols());
120    println!("res.limbs()={}", ct.cols());
121    println!();
122
123    decrypt_rlwe_thread_safe(
124        params.module(),
125        &mut pt.0,
126        &ct.0,
127        &sk1_svp_ppol,
128        &mut tmp_bytes,
129    );
130
131    pt.0.value[0].print(pt.cols(), 16);
132
133    let mut have: Vec<i64> = vec![i64::default(); params.n()];
134
135    println!("pt: {}", log_k);
136    pt.0.value[0].decode_vec_i64(pt.log_base2k(), log_k, &mut have);
137
138    println!("want: {:?}", &want[..16]);
139    println!("have: {:?}", &have[..16]);
140}