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54 lines
1.6 KiB
Markdown
54 lines
1.6 KiB
Markdown
# FINAL
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## Faster FHE instantiated with NTRU and LWE
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The FINAL library contains the implementation of the fully homorphic encryption schemes
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presented in the paper ["FINAL: Faster FHE instantiated with NTRU and LWE"](http://eprint.iacr.org/2022/074),
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by Charlotte Bonte (<charlotte.bonte@intel.com>), Ilia Iliashenko (<ilia@esat.kuleuven.be>), Jeongeun Park (<Jeongeun.Park@esat.kuleuven.be>), Hilder V. L. Pereira (<HilderVitor.LimaPereira@esat.kuleuven.be>), and Nigel P. Smart (<nigel.smart@kuleuven.be>).
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It is distributed under the MIT license. Please, check the LICENSE file for more details.
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### Requirements
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A C++ compiler, the [NTL](https://libntl.org) and [FFTW 3](http://www.fftw.org) libraries.
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## Run the code
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1. Run `make` in the main repository folder.
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2. Run the `test` program and check that all the homomorphic gates are computed correctly.
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## Usage
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Use `test.cpp` and `Makefile` as reference points to create and compile your own program with FINAL.
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### Example
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```c++
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// Input bits
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int b1 = 0;
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int b2 = 1;
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// LWE encryption base scheme
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SchemeLWE s;
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// LWE ciphertexts
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Ctxt_LWE ct1, ct2, ct_or, ct_nand, ct_xor, ct_and, ct_not;
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// Encryption of bits
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s.encrypt(ct1, b1);
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s.encrypt(ct2, b2);
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// Computes AND
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s.and_gate(ct_and, ct1, ct2);
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assert(s.decrypt(ct_and) == 0);
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// Computes NAND
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s.nand_gate(ct_nand, ct1, ct2);
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assert(s.decrypt(ct_nand) == 1);
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// Computes OR
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s.or_gate(ct_or, ct1, ct2);
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assert(s.decrypt(ct_or) == 1);
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// Computes XOR
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s.xor_gate(ct_xor, ct1, ct2);
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assert(s.decrypt(ct_xor) == 1);
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// Computes NOT
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s.not_gate(ct_not, ct1);
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assert(s.decrypt(ct_not) == 1);
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```
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