tfhe 1.6.0

TFHE-rs is a fully homomorphic encryption (FHE) library that implements Zama's variant of TFHE.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117

use crate::core_crypto::gpu::{get_number_of_gpus, CudaStreams};
use crate::integer::gpu::ciphertext::CudaUnsignedRadixCiphertext;
use crate::integer::gpu::server_key::radix::tests_signed::GpuMultiDeviceFunctionExecutor;
use crate::integer::gpu::server_key::radix::tests_unsigned::{
    create_gpu_parameterized_test, GpuFunctionExecutor,
};
use crate::integer::gpu::CudaServerKey;
use crate::integer::server_key::radix_parallel::tests_cases_unsigned::{
    default_add_test, default_sum_ciphertexts_vec_test, unchecked_add_assign_test,
    unchecked_add_test,
};
use crate::integer::server_key::radix_parallel::tests_unsigned::test_add::default_overflowing_add_test;
use crate::shortint::parameters::test_params::*;
use crate::shortint::parameters::*;

create_gpu_parameterized_test!(integer_unchecked_add {
    PARAM_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_4_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M64,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M64,
});
create_gpu_parameterized_test!(integer_unchecked_add_assign {
    PARAM_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_4_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M64,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M64,
});
create_gpu_parameterized_test!(integer_add {
    PARAM_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_4_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M64,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M64,
});
create_gpu_parameterized_test!(multi_device_integer_add {
    PARAM_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_4_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M128,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_3_CARRY_3_KS_PBS_GAUSSIAN_2M64,
    TEST_PARAM_GPU_MULTI_BIT_GROUP_3_MESSAGE_2_CARRY_2_KS_PBS_GAUSSIAN_2M64,
});
create_gpu_parameterized_test!(integer_sum_ciphertexts_vec);
create_gpu_parameterized_test!(integer_default_overflowing_add);
create_gpu_parameterized_test!(multi_device_integer_default_overflowing_add);

fn integer_unchecked_add<P>(param: P)
where
    P: Into<TestParameters>,
{
    let executor = GpuFunctionExecutor::new(&CudaServerKey::unchecked_add);
    unchecked_add_test(param, executor);
}

fn integer_unchecked_add_assign<P>(param: P)
where
    P: Into<TestParameters>,
{
    let executor = GpuFunctionExecutor::new(&CudaServerKey::unchecked_add_assign);
    unchecked_add_assign_test(param, executor);
}

fn integer_add<P>(param: P)
where
    P: Into<TestParameters>,
{
    let executor = GpuFunctionExecutor::new(&CudaServerKey::add);
    default_add_test(param, executor);
}

fn multi_device_integer_add<P>(param: P)
where
    P: Into<TestParameters>,
{
    let executor = GpuMultiDeviceFunctionExecutor::new(&CudaServerKey::add);
    let num_gpus = get_number_of_gpus();
    if num_gpus > 1 {
        default_add_test(param, executor);
    }
}

fn integer_sum_ciphertexts_vec<P>(param: P)
where
    P: Into<TestParameters>,
{
    // Without this the compiler seems lost, and outputs errors about
    // 'one type is more general than the other' probably because the
    // `sum_ciphertexts_parallelized` is generic over the input collection
    let sum_vec = |sks: &CudaServerKey,
                   ctxt: Vec<CudaUnsignedRadixCiphertext>|
     -> Option<CudaUnsignedRadixCiphertext> {
        let streams = CudaStreams::new_multi_gpu();
        sks.sum_ciphertexts(ctxt, &streams)
    };
    let executor = GpuFunctionExecutor::new(sum_vec);
    default_sum_ciphertexts_vec_test(param, executor);
}

fn integer_default_overflowing_add<P>(param: P)
where
    P: Into<TestParameters>,
{
    let executor = GpuFunctionExecutor::new(&CudaServerKey::unsigned_overflowing_add);
    default_overflowing_add_test(param, executor);
}

fn multi_device_integer_default_overflowing_add<P>(param: P)
where
    P: Into<TestParameters>,
{
    let executor = GpuMultiDeviceFunctionExecutor::new(&CudaServerKey::unsigned_overflowing_add);
    let num_gpus = get_number_of_gpus();
    if num_gpus > 1 {
        default_overflowing_add_test(param, executor);
    }
}