crypto/crypto/cdsa/utils/ristretto_utils library

Properties

invSqrt → BigInt

The modular inverse of the square root (1/sqrt(a*d)) in the Ristretto255 curve field.

final

mask255 → BigInt

A mask for the least significant 255 bits, used for bitwise operations.

final

minusOneSq → BigInt

The square of -1 in the Ristretto255 curve field.

final

oneMinusDSq → BigInt

The value 1 - d^2 in the Ristretto255 curve field.

final

sqrtAdMinusOne → BigInt

The value (a*d) - 1 in the Ristretto255 curve field.

final

sqrtM1 → BigInt

Helper methods for Ristretto255 operations. The square root of -1 in the Ristretto255 curve field.

final

Functions

isOdd(BigInt num, BigInt modulo) → bool

Check if a BigInt number is odd with respect to a given modulo.

positiveMod(BigInt a, BigInt b) → BigInt

Calculates the positive remainder of two BigInt values.

sqrtUV(BigInt u, BigInt v) → Tuple<bool, BigInt>

sqrt u/v