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use crate::integer::block_decomposition::{BlockDecomposer, DecomposableInto};
use crate::integer::ciphertext::{IntegerRadixCiphertext, RadixCiphertext};
use crate::integer::ServerKey;
use rayon::prelude::*;
impl ServerKey {
pub fn unchecked_scalar_bitand_parallelized<T, Scalar>(&self, lhs: &T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let mut result = lhs.clone();
self.unchecked_scalar_bitand_assign_parallelized(&mut result, rhs);
result
}
pub fn unchecked_scalar_bitand_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let message_modulus = self.key.message_modulus.0;
assert!(message_modulus.is_power_of_two());
let clear_blocks = BlockDecomposer::with_early_stop_at_zero(rhs, message_modulus.ilog2())
.iter_as::<u8>()
.collect::<Vec<_>>();
lhs.blocks_mut()
.par_iter_mut()
.zip(clear_blocks.par_iter().copied())
.for_each(|(lhs_block, clear_block)| {
self.key
.unchecked_scalar_bitand_assign(lhs_block, clear_block);
});
let num_clear_blocks = clear_blocks.len();
if num_clear_blocks < lhs.blocks().len() {
// Blocks beyond clear_blocks.len() should be 'bitanded'
// with '0', however, no matter the block value the result will be 0
for block in &mut lhs.blocks_mut()[num_clear_blocks..] {
self.key.create_trivial_assign(block, 0);
}
}
}
pub fn smart_scalar_bitand_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
let mut result = lhs.clone();
self.unchecked_scalar_bitand_assign_parallelized(&mut result, rhs);
result
}
pub fn smart_scalar_bitand_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
self.unchecked_scalar_bitand_assign_parallelized(lhs, rhs);
}
/// Computes homomorphically a bitand between a ciphertexts and a clear value
///
/// # Example
///
/// ```rust
/// use tfhe::integer::gen_keys_radix;
/// use tfhe::shortint::parameters::PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128;
///
/// // Generate the client key and the server key:
/// let num_blocks = 4;
/// let (cks, sks) = gen_keys_radix(PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128, num_blocks);
///
/// let msg1 = 14u8;
/// let msg2 = 97u8;
///
/// let ct1 = cks.encrypt(msg1);
///
/// let ct_res = sks.scalar_bitand_parallelized(&ct1, msg2);
///
/// // Decrypt:
/// let dec_result: u8 = cks.decrypt(&ct_res);
/// assert_eq!(dec_result, msg1 & msg2);
/// ```
pub fn scalar_bitand_parallelized<T, Scalar>(&self, lhs: &T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let mut result = lhs.clone();
self.scalar_bitand_assign_parallelized(&mut result, rhs);
result
}
/// Computes homomorphically a bitand between a ciphertexts and a clear value
///
/// # Example
///
/// ```rust
/// use tfhe::integer::gen_keys_radix;
/// use tfhe::shortint::parameters::PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128;
///
/// // Generate the client key and the server key:
/// let num_blocks = 4;
/// let (cks, sks) = gen_keys_radix(PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128, num_blocks);
///
/// let msg1 = 123u8;
/// let msg2 = 34u8;
///
/// let mut ct1 = cks.encrypt(msg1);
///
/// sks.scalar_bitand_assign_parallelized(&mut ct1, msg2);
///
/// // Decrypt:
/// let dec_result: u8 = cks.decrypt(&ct1);
/// assert_eq!(dec_result, msg1 & msg2);
/// ```
pub fn scalar_bitand_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
self.unchecked_scalar_bitand_assign_parallelized(lhs, rhs);
}
pub fn unchecked_scalar_bitor_parallelized<T, Scalar>(&self, lhs: &T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let mut result = lhs.clone();
self.unchecked_scalar_bitor_assign_parallelized(&mut result, rhs);
result
}
pub fn unchecked_scalar_bitor_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let message_modulus = self.key.message_modulus.0;
assert!(message_modulus.is_power_of_two());
let clear_blocks = BlockDecomposer::with_early_stop_at_zero(rhs, message_modulus.ilog2())
.iter_as::<u8>()
.collect::<Vec<_>>();
lhs.blocks_mut()
.par_iter_mut()
.zip(clear_blocks.par_iter().copied())
.for_each(|(lhs_block, clear_block)| {
self.key
.unchecked_scalar_bitor_assign(lhs_block, clear_block);
});
// Blocks beyond clear_blocks.len() should be 'ored'
// with '0', which means they keep their value
}
pub fn smart_scalar_bitor_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
let mut result = lhs.clone();
self.unchecked_scalar_bitor_assign_parallelized(&mut result, rhs);
result
}
pub fn smart_scalar_bitor_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
self.unchecked_scalar_bitor_assign_parallelized(lhs, rhs);
}
/// Computes homomorphically a bitor between a ciphertexts and a clear value
///
/// # Example
///
/// ```rust
/// use tfhe::integer::gen_keys_radix;
/// use tfhe::shortint::parameters::PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128;
///
/// // Generate the client key and the server key:
/// let num_blocks = 4;
/// let (cks, sks) = gen_keys_radix(PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128, num_blocks);
///
/// let msg1 = 14u8;
/// let msg2 = 97u8;
///
/// let ct1 = cks.encrypt(msg1);
///
/// let ct_res = sks.scalar_bitor_parallelized(&ct1, msg2);
///
/// // Decrypt:
/// let dec_result: u8 = cks.decrypt(&ct_res);
/// assert_eq!(dec_result, msg1 | msg2);
/// ```
pub fn scalar_bitor_parallelized<T, Scalar>(&self, lhs: &T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let mut result = lhs.clone();
self.scalar_bitor_assign_parallelized(&mut result, rhs);
result
}
/// Computes homomorphically a bitor between a ciphertexts and a clear value
///
/// # Example
///
/// ```rust
/// use tfhe::integer::gen_keys_radix;
/// use tfhe::shortint::parameters::PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128;
///
/// // Generate the client key and the server key:
/// let num_blocks = 4;
/// let (cks, sks) = gen_keys_radix(PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128, num_blocks);
///
/// let msg1 = 123u8;
/// let msg2 = 34u8;
///
/// let mut ct1 = cks.encrypt(msg1);
///
/// sks.scalar_bitor_assign_parallelized(&mut ct1, msg2);
///
/// // Decrypt:
/// let dec_result: u8 = cks.decrypt(&ct1);
/// assert_eq!(dec_result, msg1 | msg2);
/// ```
pub fn scalar_bitor_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
self.unchecked_scalar_bitor_assign_parallelized(lhs, rhs);
}
pub fn unchecked_scalar_bitxor_parallelized<T, Scalar>(&self, lhs: &T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let mut result = lhs.clone();
self.unchecked_scalar_bitxor_assign_parallelized(&mut result, rhs);
result
}
pub fn unchecked_scalar_bitxor_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let message_modulus = self.key.message_modulus.0;
assert!(message_modulus.is_power_of_two());
let clear_blocks = BlockDecomposer::with_early_stop_at_zero(rhs, message_modulus.ilog2())
.iter_as::<u8>()
.collect::<Vec<_>>();
lhs.blocks_mut()
.par_iter_mut()
.zip(clear_blocks.par_iter().copied())
.for_each(|(lhs_block, clear_block)| {
self.key
.unchecked_scalar_bitxor_assign(lhs_block, clear_block);
});
// Blocks beyond clear_blocks.len() should be 'xored'
// with '0', which means they keep their value
}
pub fn smart_scalar_bitxor_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
let mut result = lhs.clone();
self.unchecked_scalar_bitxor_assign_parallelized(&mut result, rhs);
result
}
pub fn smart_scalar_bitxor_assign_parallelized<T, Scalar>(
&self,
lhs: &mut RadixCiphertext,
rhs: Scalar,
) where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
self.unchecked_scalar_bitxor_assign_parallelized(lhs, rhs);
}
/// Computes homomorphically a bitxor between a ciphertexts and a clear value
///
/// # Example
///
/// ```rust
/// use tfhe::integer::gen_keys_radix;
/// use tfhe::shortint::parameters::PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128;
///
/// // Generate the client key and the server key:
/// let num_blocks = 4;
/// let (cks, sks) = gen_keys_radix(PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128, num_blocks);
///
/// let msg1 = 14u8;
/// let msg2 = 97u8;
///
/// let ct1 = cks.encrypt(msg1);
///
/// let ct_res = sks.scalar_bitxor_parallelized(&ct1, msg2);
///
/// // Decrypt:
/// let dec_result: u8 = cks.decrypt(&ct_res);
/// assert_eq!(dec_result, msg1 ^ msg2);
/// ```
pub fn scalar_bitxor_parallelized<T, Scalar>(&self, lhs: &T, rhs: Scalar) -> T
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
let mut result = lhs.clone();
self.scalar_bitxor_assign_parallelized(&mut result, rhs);
result
}
/// Computes homomorphically a bitxor between a ciphertexts and a clear value
///
/// # Example
///
/// ```rust
/// use tfhe::integer::gen_keys_radix;
/// use tfhe::shortint::parameters::PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128;
///
/// // Generate the client key and the server key:
/// let num_blocks = 4;
/// let (cks, sks) = gen_keys_radix(PARAM_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M128, num_blocks);
///
/// let msg1 = 123u8;
/// let msg2 = 34u8;
///
/// let mut ct1 = cks.encrypt(msg1);
///
/// sks.scalar_bitxor_assign_parallelized(&mut ct1, msg2);
///
/// // Decrypt:
/// let dec_result: u8 = cks.decrypt(&ct1);
/// assert_eq!(dec_result, msg1 ^ msg2);
/// ```
pub fn scalar_bitxor_assign_parallelized<T, Scalar>(&self, lhs: &mut T, rhs: Scalar)
where
T: IntegerRadixCiphertext,
Scalar: DecomposableInto<u8>,
{
if !lhs.block_carries_are_empty() {
self.full_propagate(lhs);
}
self.unchecked_scalar_bitxor_assign_parallelized(lhs, rhs);
}
}