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LibCrypto+LibJS: Move Power to method of {Unsigned,Signed}BigInteger

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Having it as a method instead of a free function is necessary for the
next commits and generally allows for optimizations that require deeper
access into the `UnsignedBigInteger` / `SignedBigInteger`.

Also restrict the exponent to 32 bits to avoid huge memory allocations.
This commit is contained in:
devgianlu 2025-04-26 11:17:32 +02:00 • committed by Jelle Raaijmakers
commit 5a4cfd05d0
Notes: github-actions[bot] 2025-05-23 09:58:36 +00:00
7 changed files with 53 additions and 46 deletions
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1
Libraries/LibCrypto/BigInt/SignedBigInteger.h
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@ -106,6 +106,7 @@ public:
[[nodiscard]] SignedBigInteger shift_right(size_t num_bits) const;
[[nodiscard]] SignedBigInteger multiplied_by(SignedBigInteger const& other) const;
[[nodiscard]] SignedDivisionResult divided_by(SignedBigInteger const& divisor) const;
[[nodiscard]] SignedBigInteger pow(u32 exponent) const;
[[nodiscard]] ErrorOr<SignedBigInteger> mod_power_of_two(size_t power_of_two) const;
[[nodiscard]] ErrorOr<SignedBigInteger> try_shift_left(size_t num_bits) const;