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Update example to use "RandomShake" as CSPRNG

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Signed-off-by: Anjan Roy <hello@itzmeanjan.in>
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Anjan Roy
2024-11-18 22:19:09 +04:00
parent 8437420c9e
commit 19512ecb53
1 changed files with 5 additions and 4 deletions
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9
examples/ml_kem_768.cpp
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@@ -1,4 +1,5 @@
#include "ml_kem/ml_kem_768.hpp"
#include "randomshake/randomshake.hpp"
#include <algorithm>
#include <cassert>
#include <iomanip>
@@ -54,17 +55,17 @@ main()
auto receiver_key_span = std::span<uint8_t, ml_kem_768::SHARED_SECRET_BYTE_LEN>(receiver_key);
// Pseudo-randomness source
ml_kem_prng::prng_t<128> prng{};
randomshake::randomshake_t<192> csprng{};
// Fill up seeds using PRNG
prng.read(d_span);
prng.read(z_span);
csprng.generate(d_span);
csprng.generate(z_span);
// Generate a keypair
ml_kem_768::keygen(d_span, z_span, pkey_span, skey_span);
// Fill up seed required for key encapsulation, using PRNG
prng.read(m_span);
csprng.generate(m_span);
// Encapsulate key, compute cipher text and obtain KDF
const bool is_encapsulated = ml_kem_768::encapsulate(m_span, pkey_span, cipher_span, sender_key_span);