pow

Returns x^e (mod m) in constant time.

Function parameters

Parameters

self:Self
x:Fe
e:Fe

An unsigned big integer with a fixed maximum size (`max_bits`), suitable for cryptographic operations.

Functions

Uint: An unsigned big integer with a fixed maximum size (`max_bits`), suitable for cryptographic operations.
Modulus: A modulus, defining a finite field.

Error sets in this namespace

Error Sets

OverflowError: Value is too large for the destination.
InvalidModulusError: Invalid modulus.
NullExponentError: Exponentiation with a null exponent.
FieldElementError: Invalid field element for the given modulus.
RepresentationError: Invalid representation (Montgomery vs non-Montgomery domain.)
Error: The set of all possible errors `std.crypto.ff` functions can return.

Source

Implementation

pub fn pow(self: Self, x: Fe, e: Fe) NullExponentError!Fe {
    var buf: [Fe.encoded_bytes]u8 = undefined;
    e.toBytes(&buf, native_endian) catch unreachable;
    return self.powWithEncodedExponent(x, &buf, native_endian);
}