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Optimize TCipherKernelRegistry for allocation-free reads and EC multipliers #169

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Merged
Xor-el merged 5 commits into from
Aug 14, 2026
Merged

Optimize TCipherKernelRegistry for allocation-free reads and EC multipliers #169

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f034a27
Make TCipherKernelRegistry reads allocation-free
Xor-el Aug 12, 2026
44a951a
EC: value-type constant-time scalar multiplier for all Fp prime curves
Xor-el Aug 13, 2026
f8e2fe7
EC: value-type fixed-base comb, a=-3 field specialization, CT point-l…
Xor-el Aug 13, 2026
6adc5e1
Rsa Key valaidation speedup
Xor-el Aug 14, 2026
071ce38
Fix comb-multiplier leak + weak-ref idiom; X509 lazy-cache thread-safety
Xor-el Aug 14, 2026
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10 changes: 8 additions & 2 deletions CryptoLib.Benchmark/Delphi/CryptoLib.BenchmarkConsole.dpr
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Original file line number Diff line number Diff line change
Expand Up @@ -208,6 +208,9 @@ uses
ClpChaChaSimd in '..\..\CryptoLib\src\Simd\Facade\ClpChaChaSimd.pas',
ClpChaChaX86Backend in '..\..\CryptoLib\src\Simd\Backend\ClpChaChaX86Backend.pas',
ClpChaChaArmBackend in '..\..\CryptoLib\src\Simd\Backend\ClpChaChaArmBackend.pas',
ClpFpKernelSimd in '..\..\CryptoLib\src\Simd\Facade\ClpFpKernelSimd.pas',
ClpFpKernelX86Backend in '..\..\CryptoLib\src\Simd\Backend\ClpFpKernelX86Backend.pas',
ClpFpKernelArmBackend in '..\..\CryptoLib\src\Simd\Backend\ClpFpKernelArmBackend.pas',
ClpSalsaSimd in '..\..\CryptoLib\src\Simd\Facade\ClpSalsaSimd.pas',
ClpSalsaX86Backend in '..\..\CryptoLib\src\Simd\Backend\ClpSalsaX86Backend.pas',
ClpSalsaArmBackend in '..\..\CryptoLib\src\Simd\Backend\ClpSalsaArmBackend.pas',
Expand Down Expand Up @@ -393,8 +396,11 @@ uses
ClpMiscObjectIdentifiers in '..\..\CryptoLib\src\Asn1\Misc\ClpMiscObjectIdentifiers.pas',
ClpMultipliers in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpMultipliers.pas',
ClpIFpFieldOps in '..\..\CryptoLib\src\Interfaces\Math\EC\Multiplier\ClpIFpFieldOps.pas',
ClpHomogeneousPoint in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpHomogeneousPoint.pas',
ClpFixedWindowCTMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpFixedWindowCTMultiplier.pas',
ClpCTFieldValue in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpCTFieldValue.pas',
ClpCTFieldOps in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpCTFieldOps.pas',
ClpCTLadder in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpCTLadder.pas',
ClpFpCTMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpFpCTMultiplier.pas',
ClpFpCombMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpFpCombMultiplier.pas',
ClpIF2mFieldOps in '..\..\CryptoLib\src\Interfaces\Math\EC\Multiplier\ClpIF2mFieldOps.pas',
ClpLopezDahabLadder in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpLopezDahabLadder.pas',
ClpF2mMontgomeryLadderCTMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpF2mMontgomeryLadderCTMultiplier.pas',
Expand Down
98 changes: 95 additions & 3 deletions CryptoLib.ConstantTime/src/Core/CtSubjects.pas
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Expand Up @@ -20,7 +20,7 @@

# Subject (must stay clean) Control (must fire)
1 TX25519 ladder (none - clean baseline)
2 P-256 default (TFixedWindowCTMultiplier) TWNafL2RMultiplier, same curve
2 P-256 default (TFpCTMultiplier value-type) TWNafL2RMultiplier, same curve
3 sect283k1 default (F2m Montgomery ladder)TWTauNafMultiplier, same curve
4 TAesBitSlicedEngine block TAesEngine (T-table) block
5 TBasicGcmMultiplier (ImplMul64) GHASH TTables4kGcmMultiplier GHASH
Expand Down Expand Up @@ -589,6 +589,80 @@ function MakeSect283WTau(ASeed: UInt64): TDudectOp;
Result := BuildEcOp('sect283k1', TWTauNafMultiplier.Create as IECMultiplier, ASeed);
end;

function MakeSecp256k1CT(ASeed: UInt64): TDudectOp;
var
LX9: IX9ECParameters;
begin
LX9 := TCustomNamedCurves.GetByName('secp256k1');
Result := TECMulOp.Create(LX9.Curve.Multiplier, LX9.G, LX9.N, ASeed);
end;

function MakeSecp256k1WNaf(ASeed: UInt64): TDudectOp;
begin
Result := BuildEcOp('secp256k1', TWNafL2RMultiplier.Create as IECMultiplier, ASeed);
end;

function MakeSecp384r1CT(ASeed: UInt64): TDudectOp;
var
LX9: IX9ECParameters;
begin
LX9 := TCustomNamedCurves.GetByName('secp384r1');
Result := TECMulOp.Create(LX9.Curve.Multiplier, LX9.G, LX9.N, ASeed);
end;

function MakeSecp384r1WNaf(ASeed: UInt64): TDudectOp;
begin
Result := BuildEcOp('secp384r1', TWNafL2RMultiplier.Create as IECMultiplier, ASeed);
end;

function MakeSecp521r1CT(ASeed: UInt64): TDudectOp;
var
LX9: IX9ECParameters;
begin
LX9 := TCustomNamedCurves.GetByName('secp521r1');
Result := TECMulOp.Create(LX9.Curve.Multiplier, LX9.G, LX9.N, ASeed);
end;

function MakeSecp521r1WNaf(ASeed: UInt64): TDudectOp;
begin
Result := BuildEcOp('secp521r1', TWNafL2RMultiplier.Create as IECMultiplier, ASeed);
end;

{ Fixed-base comb subjects: the same TFpPointOps CT primitives as [d]Q, driven
through the fixed-base multiplier ([k]G on the reused generator). Paired with
the existing wNAF-on-G controls. }
function MakeSecp256r1Comb(ASeed: UInt64): TDudectOp;
var
LX9: IX9ECParameters;
begin
LX9 := TCustomNamedCurves.GetByName('secp256r1');
Result := TECMulOp.Create(LX9.Curve.BasePointMultiplier, LX9.G, LX9.N, ASeed);
end;

function MakeSecp256k1Comb(ASeed: UInt64): TDudectOp;
var
LX9: IX9ECParameters;
begin
LX9 := TCustomNamedCurves.GetByName('secp256k1');
Result := TECMulOp.Create(LX9.Curve.BasePointMultiplier, LX9.G, LX9.N, ASeed);
end;

function MakeSecp384r1Comb(ASeed: UInt64): TDudectOp;
var
LX9: IX9ECParameters;
begin
LX9 := TCustomNamedCurves.GetByName('secp384r1');
Result := TECMulOp.Create(LX9.Curve.BasePointMultiplier, LX9.G, LX9.N, ASeed);
end;

function MakeSecp521r1Comb(ASeed: UInt64): TDudectOp;
var
LX9: IX9ECParameters;
begin
LX9 := TCustomNamedCurves.GetByName('secp521r1');
Result := TECMulOp.Create(LX9.Curve.BasePointMultiplier, LX9.G, LX9.N, ASeed);
end;

function MakeAesBitsliced(ASeed: UInt64): TDudectOp;
begin
Result := TAesOp.Create(TAesBitSlicedEngine.Create as IBlockCipher, 16, ASeed);
Expand Down Expand Up @@ -679,10 +753,10 @@ function MakeRow(const AName, ASubjectLabel, AControlLabel: string;

function GetDudectRows: TCtRowArray;
begin
System.SetLength(Result, 7);
System.SetLength(Result, 14);
Result[0] := MakeRow('X25519', 'X25519 ladder', '',
@MakeX25519, nil, MediumCfg(UInt64($0000000000000001)));
Result[1] := MakeRow('P-256 [d]Q', 'FixedWindow CT', 'wNAF (var-time)',
Result[1] := MakeRow('P-256 [d]Q', 'value-type CT', 'wNAF (var-time)',
@MakeP256CT, @MakeP256WNaf, ExpensiveCfg(UInt64($0000000000000002)));
Result[2] := MakeRow('sect283k1 [d]Q', 'F2m Montgomery CT', 'WTauNAF (var-time)',
@MakeSect283CT, @MakeSect283WTau, ExpensiveCfg(UInt64($0000000000000003)));
Expand All @@ -705,6 +779,24 @@ function GetDudectRows: TCtRowArray;
@MakeModInvSafe, @MakeModInvVar, MediumCfg(UInt64($0000000000000006)));
Result[6] := MakeRow('mod-inv (wrapper)', 'safegcd wrapper (CT)', 'variable-time wrapper',
@MakeModInvWrapperSafe, @MakeModInvWrapperVar, MediumCfg(UInt64($0000000000000007)));
// The remaining prime curves also run the value-type CT multiplier; measure each
// explicitly against its wNAF (variable-time) control.
Result[7] := MakeRow('secp256k1 [d]Q', 'value-type CT', 'wNAF (var-time)',
@MakeSecp256k1CT, @MakeSecp256k1WNaf, ExpensiveCfg(UInt64($0000000000000008)));
Result[8] := MakeRow('secp384r1 [d]Q', 'value-type CT', 'wNAF (var-time)',
@MakeSecp384r1CT, @MakeSecp384r1WNaf, ExpensiveCfg(UInt64($0000000000000009)));
Result[9] := MakeRow('secp521r1 [d]Q', 'value-type CT', 'wNAF (var-time)',
@MakeSecp521r1CT, @MakeSecp521r1WNaf, ExpensiveCfg(UInt64($000000000000000A)));
// Fixed-base comb [k]G on the reused generator: same CT primitives as [d]Q,
// paired against wNAF-on-G (variable-time) controls.
Result[10] := MakeRow('secp256r1 [k]G comb', 'value-type comb (CT)', 'wNAF (var-time)',
@MakeSecp256r1Comb, @MakeP256WNaf, ExpensiveCfg(UInt64($000000000000000B)));
Result[11] := MakeRow('secp256k1 [k]G comb', 'value-type comb (CT)', 'wNAF (var-time)',
@MakeSecp256k1Comb, @MakeSecp256k1WNaf, ExpensiveCfg(UInt64($000000000000000C)));
Result[12] := MakeRow('secp384r1 [k]G comb', 'value-type comb (CT)', 'wNAF (var-time)',
@MakeSecp384r1Comb, @MakeSecp384r1WNaf, ExpensiveCfg(UInt64($000000000000000D)));
Result[13] := MakeRow('secp521r1 [k]G comb', 'value-type comb (CT)', 'wNAF (var-time)',
@MakeSecp521r1Comb, @MakeSecp521r1WNaf, ExpensiveCfg(UInt64($000000000000000E)));
end;

function MakeVg(const AName: string; AMake: TCtOpFactory;
Expand Down
10 changes: 8 additions & 2 deletions CryptoLib.Examples/Delphi.Examples/CryptoLib.Examples.dpr
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Original file line number Diff line number Diff line change
Expand Up @@ -227,6 +227,9 @@ uses
ClpChaChaSimd in '..\..\CryptoLib\src\Simd\Facade\ClpChaChaSimd.pas',
ClpChaChaX86Backend in '..\..\CryptoLib\src\Simd\Backend\ClpChaChaX86Backend.pas',
ClpChaChaArmBackend in '..\..\CryptoLib\src\Simd\Backend\ClpChaChaArmBackend.pas',
ClpFpKernelSimd in '..\..\CryptoLib\src\Simd\Facade\ClpFpKernelSimd.pas',
ClpFpKernelX86Backend in '..\..\CryptoLib\src\Simd\Backend\ClpFpKernelX86Backend.pas',
ClpFpKernelArmBackend in '..\..\CryptoLib\src\Simd\Backend\ClpFpKernelArmBackend.pas',
ClpSalsaSimd in '..\..\CryptoLib\src\Simd\Facade\ClpSalsaSimd.pas',
ClpSalsaX86Backend in '..\..\CryptoLib\src\Simd\Backend\ClpSalsaX86Backend.pas',
ClpSalsaArmBackend in '..\..\CryptoLib\src\Simd\Backend\ClpSalsaArmBackend.pas',
Expand Down Expand Up @@ -410,8 +413,11 @@ uses
ClpMiscObjectIdentifiers in '..\..\CryptoLib\src\Asn1\Misc\ClpMiscObjectIdentifiers.pas',
ClpMultipliers in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpMultipliers.pas',
ClpIFpFieldOps in '..\..\CryptoLib\src\Interfaces\Math\EC\Multiplier\ClpIFpFieldOps.pas',
ClpHomogeneousPoint in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpHomogeneousPoint.pas',
ClpFixedWindowCTMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpFixedWindowCTMultiplier.pas',
ClpCTFieldValue in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpCTFieldValue.pas',
ClpCTFieldOps in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpCTFieldOps.pas',
ClpCTLadder in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpCTLadder.pas',
ClpFpCTMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpFpCTMultiplier.pas',
ClpFpCombMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpFpCombMultiplier.pas',
ClpIF2mFieldOps in '..\..\CryptoLib\src\Interfaces\Math\EC\Multiplier\ClpIF2mFieldOps.pas',
ClpLopezDahabLadder in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpLopezDahabLadder.pas',
ClpF2mMontgomeryLadderCTMultiplier in '..\..\CryptoLib\src\Math\EC\Multiplier\ClpF2mMontgomeryLadderCTMultiplier.pas',
Expand Down
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