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#[cfg(feature = "ml-kem-1024")]
use fips203::ml_kem_1024;
#[cfg(feature = "ml-kem-512")]
use fips203::ml_kem_512;
#[cfg(feature = "ml-kem-768")]
use fips203::ml_kem_768;
use fips203::traits::{Decaps, Encaps, KeyGen, SerDes};
use rand_chacha::rand_core::SeedableRng;
#[test]
#[cfg(feature = "ml-kem-512")]
fn test_expected_flow_512() {
let mut rng = rand_chacha::ChaCha8Rng::seed_from_u64(123);
for _i in 0..100 {
// Alice runs KeyGen, and serializes ek for Bob (to bytes)
let (alice_ek, alice_dk) = ml_kem_512::KG::try_keygen_with_rng(&mut rng).unwrap();
let alice_ek_bytes = alice_ek.into_bytes();
// Alice sends ek bytes to Bob
let bob_ek_bytes = alice_ek_bytes;
// Bob deserializes ek bytes, runs Encaps, to get ssk and serializes ct for Alice (to bytes)
let bob_ek = ml_kem_512::EncapsKey::try_from_bytes(bob_ek_bytes).unwrap();
let (bob_ssk_bytes, bob_ct) = bob_ek.try_encaps_with_rng(&mut rng).unwrap();
let bob_ct_bytes = bob_ct.into_bytes();
// Bob sends ct bytes to Alice
let alice_ct_bytes = bob_ct_bytes;
// Alice deserializes runs Decaps
let alice_ct = ml_kem_512::CipherText::try_from_bytes(alice_ct_bytes).unwrap();
let alice_ssk_bytes = alice_dk.try_decaps(&alice_ct).unwrap();
// Alice and Bob now have the same shared secret key
assert_eq!(bob_ssk_bytes, alice_ssk_bytes);
// Double check the correspondence of the serialized keypair (we already have alice_ek)
let alice_dk_bytes = alice_dk.into_bytes();
assert!(ml_kem_512::KG::validate_keypair_with_rng_vartime(
&mut rng,
&alice_ek_bytes,
&alice_dk_bytes
));
}
}
#[test]
#[cfg(feature = "ml-kem-768")]
fn test_expected_flow_768() {
let mut rng = rand_chacha::ChaCha8Rng::seed_from_u64(456);
for _i in 0..100 {
// Alice runs KeyGen, and serializes ek for Bob (to bytes)
let (alice_ek, alice_dk) = ml_kem_768::KG::try_keygen_with_rng(&mut rng).unwrap();
let alice_ek_bytes = alice_ek.into_bytes();
// Alice sends ek bytes to Bob
let bob_ek_bytes = alice_ek_bytes;
// Bob deserializes ek bytes, runs Encaps, to get ssk and serializes ct for Alice (to bytes)
let bob_ek = ml_kem_768::EncapsKey::try_from_bytes(bob_ek_bytes).unwrap();
let (bob_ssk_bytes, bob_ct) = bob_ek.try_encaps_with_rng(&mut rng).unwrap();
let bob_ct_bytes = bob_ct.into_bytes();
// Bob sends ct bytes to Alice
let alice_ct_bytes = bob_ct_bytes;
// Alice deserializes runs Decaps
let alice_ct = ml_kem_768::CipherText::try_from_bytes(alice_ct_bytes).unwrap();
let alice_ssk_bytes = alice_dk.try_decaps(&alice_ct).unwrap();
// Alice and Bob now have the same shared secret key
assert_eq!(bob_ssk_bytes, alice_ssk_bytes);
// Double check the correspondence of the serialized keypair (we already have alice_ek)
let alice_dk_bytes = alice_dk.into_bytes();
assert!(ml_kem_768::KG::validate_keypair_with_rng_vartime(
&mut rng,
&alice_ek_bytes,
&alice_dk_bytes
));
}
}
#[test]
#[cfg(feature = "ml-kem-1024")]
fn test_expected_flow_1024() {
let mut rng = rand_chacha::ChaCha8Rng::seed_from_u64(789);
for _i in 0..100 {
// Alice runs KeyGen, and serializes ek for Bob (to bytes)
let (alice_ek, alice_dk) = ml_kem_1024::KG::try_keygen_with_rng(&mut rng).unwrap();
let alice_ek_bytes = alice_ek.into_bytes();
// Alice sends ek bytes to Bob
let bob_ek_bytes = alice_ek_bytes;
// Bob deserializes ek bytes, runs Encaps, to get ssk and serializes ct for Alice (to bytes)
let bob_ek = ml_kem_1024::EncapsKey::try_from_bytes(bob_ek_bytes).unwrap();
let (bob_ssk_bytes, bob_ct) = bob_ek.try_encaps_with_rng(&mut rng).unwrap();
let bob_ct_bytes = bob_ct.into_bytes();
// Bob sends ct bytes to Alice
let alice_ct_bytes = bob_ct_bytes;
// Alice deserializes runs Decaps
let alice_ct = ml_kem_1024::CipherText::try_from_bytes(alice_ct_bytes).unwrap();
let alice_ssk_bytes = alice_dk.try_decaps(&alice_ct).unwrap();
// Alice and Bob now have the same shared secret key
assert_eq!(bob_ssk_bytes, alice_ssk_bytes);
// Double check the correspondence of the serialized keypair (we already have alice_ek)
let alice_dk_bytes = alice_dk.into_bytes();
assert!(ml_kem_1024::KG::validate_keypair_with_rng_vartime(
&mut rng,
&alice_ek_bytes,
&alice_dk_bytes
));
}
}
// $ cargo test -- --ignored
#[ignore]
#[test]
#[cfg(feature = "ml-kem-512")]
fn test_forever() {
let mut rng = rand_chacha::ChaCha8Rng::seed_from_u64(123);
for i in 0..u64::MAX {
// Alice runs KeyGen, and serializes ek for Bob (to bytes)
let (alice_ek, alice_dk) = ml_kem_512::KG::try_keygen_with_rng(&mut rng).unwrap();
let alice_ek_bytes = alice_ek.into_bytes();
// Alice sends ek bytes to Bob
let bob_ek_bytes = alice_ek_bytes;
// Bob deserializes ek bytes, runs Encaps, to get ssk and serializes ct for Alice (to bytes)
let bob_ek = ml_kem_512::EncapsKey::try_from_bytes(bob_ek_bytes).unwrap();
let (bob_ssk_bytes, bob_ct) = bob_ek.try_encaps_with_rng(&mut rng).unwrap();
let bob_ct_bytes = bob_ct.into_bytes();
// Bob sends ct bytes to Alice
let alice_ct_bytes = bob_ct_bytes;
// Alice deserializes runs Decaps
let alice_ct = ml_kem_512::CipherText::try_from_bytes(alice_ct_bytes).unwrap();
let alice_ssk_bytes = alice_dk.try_decaps(&alice_ct).unwrap();
// Alice and Bob now have the same shared secret key
assert_eq!(bob_ssk_bytes, alice_ssk_bytes, "shared secret failed on iteration {}", i);
// Double check the correspondence of the serialized keypair (we already have alice_ek)
let alice_dk_bytes = alice_dk.into_bytes();
assert!(ml_kem_512::KG::validate_keypair_with_rng_vartime(
&mut rng,
&alice_ek_bytes,
&alice_dk_bytes
));
}
}
|
