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47 lines
1.2 KiB
C++
47 lines
1.2 KiB
C++
// Part of the Concrete Compiler Project, under the BSD3 License with Zama
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// Exceptions. See
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// https://github.com/zama-ai/concrete-compiler-internal/blob/main/LICENSE.txt
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// for license information.
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#ifndef CONCRETELANG_SUPPORT_V0CURVES_H_
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#define CONCRETELANG_SUPPORT_V0CURVES_H_
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#include <cstddef>
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namespace mlir {
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namespace concretelang {
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#define SECURITY_LEVEL_80 0
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#define SECURITY_LEVEL_128 1
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#define SECURITY_LEVEL_192 2
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#define SECURITY_LEVEL_256 3
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#define SECURITY_LEVEL_MAX 4
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#define KEY_FORMAT_BINARY 0
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#define KEY_FORMAT_MAX 1
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struct V0Curves {
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int securityLevel;
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double linearTerm1;
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double linearTerm2;
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int nAlpha;
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int keyFormat;
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V0Curves(int securityLevel, double linearTerm1, double linearTerm2,
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int nAlpha, int keyFormat)
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: securityLevel(securityLevel), linearTerm1(linearTerm1),
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linearTerm2(linearTerm2), nAlpha(nAlpha), keyFormat(keyFormat) {}
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double getVariance(int glweDimension, int polynomialSize, int logQ) {
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auto a = std::pow(
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2, (linearTerm1 * glweDimension * polynomialSize + linearTerm2) * 2);
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auto b = std::pow(2, -2 * (logQ - 2));
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return a > b ? a : b;
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}
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};
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V0Curves *getV0Curves(int securityLevel, int keyFormat);
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} // namespace concretelang
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} // namespace mlir
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#endif
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