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@7of9

secureCoding > 任意精度(bignum)演算 > メモリを必要に応じて動的に確保することで、値を正しく表現するために必要な幅を用意する

引用: C/C++ セキュアコーディング 第2版 by Robert C. Seacordら

シニアエンジニアの庵

OpenSSL ライブラリには,RSA や DH などの公開鍵暗号アルゴリズムを実現するために多倍長整数演算のライブラリ関数が用意されている (crypto ライブラリ:OpenSSL bn(3)を参照)

How Big is a Bignum?

For most Ruby developers, therefore, the Bignum class is a dark, unfamiliar corner of the language.

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