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chore(shortint): move tuniform 0.10 parameters into their own folder
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nsarlin-zama committed Dec 20, 2024
1 parent 0fab62b commit a26e7fc
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Showing 15 changed files with 79 additions and 51 deletions.
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Expand Up @@ -24,23 +24,3 @@ pub const V0_11_PARAM_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64: ClassicPBSParamete
ciphertext_modulus: CiphertextModulus::new_native(),
encryption_key_choice: EncryptionKeyChoice::Big,
};

// security = 132 bits, p-fail = 2^-64.138, algorithmic cost ~ 113, 2-norm = 5
pub const V0_10_PARAM_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64: ClassicPBSParameters =
ClassicPBSParameters {
lwe_dimension: LweDimension(887),
glwe_dimension: GlweDimension(1),
polynomial_size: PolynomialSize(2048),
lwe_noise_distribution: DynamicDistribution::new_t_uniform(46),
glwe_noise_distribution: DynamicDistribution::new_t_uniform(17),
pbs_base_log: DecompositionBaseLog(22),
pbs_level: DecompositionLevelCount(1),
ks_base_log: DecompositionBaseLog(3),
ks_level: DecompositionLevelCount(5),
message_modulus: MessageModulus(4),
carry_modulus: CarryModulus(4),
max_noise_level: MaxNoiseLevel::new(5),
log2_p_fail: -64.138,
ciphertext_modulus: CiphertextModulus::new_native(),
encryption_key_choice: EncryptionKeyChoice::Big,
};
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Expand Up @@ -44,15 +44,3 @@ pub const V0_11_PARAM_PKE_TO_BIG_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64_ZKV1:
expansion_kind: CompactCiphertextListExpansionKind::RequiresCasting,
}
.validate();

/// This legacy parameter set were used with the v1 pke zk scheme on TFHE-rs v0.10 and lower
pub const V0_10_PARAM_PKE_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64_ZKV1:
CompactPublicKeyEncryptionParameters = CompactPublicKeyEncryptionParameters {
encryption_lwe_dimension: LweDimension(1024),
encryption_noise_distribution: DynamicDistribution::new_t_uniform(42),
message_modulus: MessageModulus(4),
carry_modulus: CarryModulus(4),
ciphertext_modulus: CiphertextModulus::new_native(),
expansion_kind: CompactCiphertextListExpansionKind::RequiresCasting,
}
.validate();
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Expand Up @@ -52,22 +52,3 @@ pub const V0_11_PARAM_KEYSWITCH_PKE_TO_BIG_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M6
ks_base_log: DecompositionBaseLog(24),
destination_key: EncryptionKeyChoice::Big,
};

// These are the same parameters as they where defined in TFHE-rs 0.10 and before
pub const V0_10_PARAM_KEYSWITCH_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64:
ShortintKeySwitchingParameters =
V0_10_PARAM_KEYSWITCH_PKE_TO_SMALL_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64;

pub const V0_10_PARAM_KEYSWITCH_PKE_TO_SMALL_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64:
ShortintKeySwitchingParameters = ShortintKeySwitchingParameters {
ks_level: DecompositionLevelCount(5),
ks_base_log: DecompositionBaseLog(3),
destination_key: EncryptionKeyChoice::Small,
};

pub const V0_10_PARAM_KEYSWITCH_PKE_TO_BIG_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64:
ShortintKeySwitchingParameters = ShortintKeySwitchingParameters {
ks_level: DecompositionLevelCount(1),
ks_base_log: DecompositionBaseLog(27),
destination_key: EncryptionKeyChoice::Big,
};
3 changes: 3 additions & 0 deletions tfhe/src/shortint/parameters/mod.rs
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Expand Up @@ -58,6 +58,9 @@ pub use crate::shortint::parameters::v0_10::classic::compact_pk::gaussian::p_fai
pub use crate::shortint::parameters::v0_10::classic::gaussian::p_fail_2_minus_64::ks_pbs::*;
pub use crate::shortint::parameters::v0_10::classic::gaussian::p_fail_2_minus_64::pbs_ks::*;
pub use crate::shortint::parameters::v0_10::multi_bit::gaussian::p_fail_2_minus_64::ks_pbs::*;
pub use crate::shortint::parameters::v0_10::classic::tuniform::p_fail_2_minus_64::ks_pbs::*;
pub use crate::shortint::parameters::v0_10::key_switching::p_fail_2_minus_64::ks_pbs::*;
pub use crate::shortint::parameters::v0_10::compact_public_key_only::p_fail_2_minus_64::ks_pbs::*;

#[cfg(tarpaulin)]
pub use coverage_parameters::*;
Expand Down
1 change: 1 addition & 0 deletions tfhe/src/shortint/parameters/v0_10/classic/mod.rs
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@@ -1,2 +1,3 @@
pub mod compact_pk;
pub mod gaussian;
pub mod tuniform;
1 change: 1 addition & 0 deletions tfhe/src/shortint/parameters/v0_10/classic/tuniform/mod.rs
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pub mod p_fail_2_minus_64;
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use crate::core_crypto::prelude::*;
use crate::shortint::{CarryModulus, ClassicPBSParameters, MaxNoiseLevel, MessageModulus};

// security = 132 bits, p-fail = 2^-64.138, algorithmic cost ~ 113, 2-norm = 5
pub const V0_10_PARAM_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64: ClassicPBSParameters =
ClassicPBSParameters {
lwe_dimension: LweDimension(887),
glwe_dimension: GlweDimension(1),
polynomial_size: PolynomialSize(2048),
lwe_noise_distribution: DynamicDistribution::new_t_uniform(46),
glwe_noise_distribution: DynamicDistribution::new_t_uniform(17),
pbs_base_log: DecompositionBaseLog(22),
pbs_level: DecompositionLevelCount(1),
ks_base_log: DecompositionBaseLog(3),
ks_level: DecompositionLevelCount(5),
message_modulus: MessageModulus(4),
carry_modulus: CarryModulus(4),
max_noise_level: MaxNoiseLevel::new(5),
log2_p_fail: -64.138,
ciphertext_modulus: CiphertextModulus::new_native(),
encryption_key_choice: EncryptionKeyChoice::Big,
};
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pub mod ks_pbs;
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pub mod p_fail_2_minus_64;
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use crate::core_crypto::commons::parameters::{
CiphertextModulus, DynamicDistribution, LweDimension,
};
use crate::shortint::parameters::{
CarryModulus, CompactCiphertextListExpansionKind, CompactPublicKeyEncryptionParameters,
MessageModulus,
};

/// This legacy parameter set were used with the v1 pke zk scheme on TFHE-rs v0.10 and lower
pub const V0_10_PARAM_PKE_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64_ZKV1:
CompactPublicKeyEncryptionParameters = CompactPublicKeyEncryptionParameters {
encryption_lwe_dimension: LweDimension(1024),
encryption_noise_distribution: DynamicDistribution::new_t_uniform(42),
message_modulus: MessageModulus(4),
carry_modulus: CarryModulus(4),
ciphertext_modulus: CiphertextModulus::new_native(),
expansion_kind: CompactCiphertextListExpansionKind::RequiresCasting,
}
.validate();
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pub mod ks_pbs;
1 change: 1 addition & 0 deletions tfhe/src/shortint/parameters/v0_10/key_switching/mod.rs
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pub mod p_fail_2_minus_64;
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use crate::shortint::parameters::{
DecompositionBaseLog, DecompositionLevelCount, EncryptionKeyChoice,
ShortintKeySwitchingParameters,
};

pub const V0_10_PARAM_KEYSWITCH_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64:
ShortintKeySwitchingParameters =
V0_10_PARAM_KEYSWITCH_PKE_TO_SMALL_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64;

pub const V0_10_PARAM_KEYSWITCH_PKE_TO_SMALL_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64:
ShortintKeySwitchingParameters = ShortintKeySwitchingParameters {
ks_level: DecompositionLevelCount(5),
ks_base_log: DecompositionBaseLog(3),
destination_key: EncryptionKeyChoice::Small,
};

pub const V0_10_PARAM_KEYSWITCH_PKE_TO_BIG_MESSAGE_2_CARRY_2_KS_PBS_TUNIFORM_2M64:
ShortintKeySwitchingParameters = ShortintKeySwitchingParameters {
ks_level: DecompositionLevelCount(1),
ks_base_log: DecompositionBaseLog(27),
destination_key: EncryptionKeyChoice::Big,
};
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pub mod ks_pbs;
6 changes: 6 additions & 0 deletions tfhe/src/shortint/parameters/v0_10/mod.rs
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@@ -1,2 +1,8 @@
//! FHE Parameters as they were defined in TFHE-rs 0.10 and before.
//!
//! These parameters may be used for backward compatibility.
pub mod classic;
pub mod compact_public_key_only;
pub mod key_switching;
pub mod multi_bit;

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