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Diffstat (limited to 'packages/utils/src/random.ts')
-rw-r--r-- | packages/utils/src/random.ts | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/packages/utils/src/random.ts b/packages/utils/src/random.ts new file mode 100644 index 000000000..69243bab8 --- /dev/null +++ b/packages/utils/src/random.ts @@ -0,0 +1,16 @@ +import { BigNumber } from './configured_bignumber'; + +const MAX_DIGITS_IN_UNSIGNED_256_INT = 78; + +/** + * Generates a pseudo-random 256-bit number. + * @return A pseudo-random 256-bit number. + */ +export function generatePseudoRandom256BitNumber(): BigNumber { + // BigNumber.random returns a pseudo-random number between 0 & 1 with a passed in number of decimal places. + // Source: https://mikemcl.github.io/bignumber.js/#random + const randomNumber = BigNumber.random(MAX_DIGITS_IN_UNSIGNED_256_INT); + const factor = new BigNumber(10).pow(MAX_DIGITS_IN_UNSIGNED_256_INT - 1); + const randomNumberScaledTo256Bits = randomNumber.times(factor).integerValue(); + return randomNumberScaledTo256Bits; +} |