Struct eth_types::sign_types::SECP256K1_Q

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pub struct SECP256K1_Q { /* private fields */ }
Expand description

Secp256k1 Curve Scalar. Reference: Section 2.4.1 (parameter n) in “SEC 2: Recommended Elliptic Curve Domain Parameters” document at http://www.secg.org/sec2-v2.pdf

Methods from Deref<Target = BigUint>§

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pub fn to_bytes_be(&self) -> Vec<u8>

Returns the byte representation of the BigUint in big-endian byte order.

§Examples
use num_bigint::BigUint;

let i = BigUint::parse_bytes(b"1125", 10).unwrap();
assert_eq!(i.to_bytes_be(), vec![4, 101]);
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pub fn to_bytes_le(&self) -> Vec<u8>

Returns the byte representation of the BigUint in little-endian byte order.

§Examples
use num_bigint::BigUint;

let i = BigUint::parse_bytes(b"1125", 10).unwrap();
assert_eq!(i.to_bytes_le(), vec![101, 4]);
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pub fn to_u32_digits(&self) -> Vec<u32>

Returns the u32 digits representation of the BigUint ordered least significant digit first.

§Examples
use num_bigint::BigUint;

assert_eq!(BigUint::from(1125u32).to_u32_digits(), vec![1125]);
assert_eq!(BigUint::from(4294967295u32).to_u32_digits(), vec![4294967295]);
assert_eq!(BigUint::from(4294967296u64).to_u32_digits(), vec![0, 1]);
assert_eq!(BigUint::from(112500000000u64).to_u32_digits(), vec![830850304, 26]);
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pub fn to_u64_digits(&self) -> Vec<u64>

Returns the u64 digits representation of the BigUint ordered least significant digit first.

§Examples
use num_bigint::BigUint;

assert_eq!(BigUint::from(1125u32).to_u64_digits(), vec![1125]);
assert_eq!(BigUint::from(4294967295u32).to_u64_digits(), vec![4294967295]);
assert_eq!(BigUint::from(4294967296u64).to_u64_digits(), vec![4294967296]);
assert_eq!(BigUint::from(112500000000u64).to_u64_digits(), vec![112500000000]);
assert_eq!(BigUint::from(1u128 << 64).to_u64_digits(), vec![0, 1]);
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pub fn iter_u32_digits(&self) -> U32Digits<'_>

Returns an iterator of u32 digits representation of the BigUint ordered least significant digit first.

§Examples
use num_bigint::BigUint;

assert_eq!(BigUint::from(1125u32).iter_u32_digits().collect::<Vec<u32>>(), vec![1125]);
assert_eq!(BigUint::from(4294967295u32).iter_u32_digits().collect::<Vec<u32>>(), vec![4294967295]);
assert_eq!(BigUint::from(4294967296u64).iter_u32_digits().collect::<Vec<u32>>(), vec![0, 1]);
assert_eq!(BigUint::from(112500000000u64).iter_u32_digits().collect::<Vec<u32>>(), vec![830850304, 26]);
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pub fn iter_u64_digits(&self) -> U64Digits<'_>

Returns an iterator of u64 digits representation of the BigUint ordered least significant digit first.

§Examples
use num_bigint::BigUint;

assert_eq!(BigUint::from(1125u32).iter_u64_digits().collect::<Vec<u64>>(), vec![1125]);
assert_eq!(BigUint::from(4294967295u32).iter_u64_digits().collect::<Vec<u64>>(), vec![4294967295]);
assert_eq!(BigUint::from(4294967296u64).iter_u64_digits().collect::<Vec<u64>>(), vec![4294967296]);
assert_eq!(BigUint::from(112500000000u64).iter_u64_digits().collect::<Vec<u64>>(), vec![112500000000]);
assert_eq!(BigUint::from(1u128 << 64).iter_u64_digits().collect::<Vec<u64>>(), vec![0, 1]);
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pub fn to_str_radix(&self, radix: u32) -> String

Returns the integer formatted as a string in the given radix. radix must be in the range 2...36.

§Examples
use num_bigint::BigUint;

let i = BigUint::parse_bytes(b"ff", 16).unwrap();
assert_eq!(i.to_str_radix(16), "ff");
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pub fn to_radix_be(&self, radix: u32) -> Vec<u8>

Returns the integer in the requested base in big-endian digit order. The output is not given in a human readable alphabet but as a zero based u8 number. radix must be in the range 2...256.

§Examples
use num_bigint::BigUint;

assert_eq!(BigUint::from(0xFFFFu64).to_radix_be(159),
           vec![2, 94, 27]);
// 0xFFFF = 65535 = 2*(159^2) + 94*159 + 27
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pub fn to_radix_le(&self, radix: u32) -> Vec<u8>

Returns the integer in the requested base in little-endian digit order. The output is not given in a human readable alphabet but as a zero based u8 number. radix must be in the range 2...256.

§Examples
use num_bigint::BigUint;

assert_eq!(BigUint::from(0xFFFFu64).to_radix_le(159),
           vec![27, 94, 2]);
// 0xFFFF = 65535 = 27 + 94*159 + 2*(159^2)
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pub fn bits(&self) -> u64

Determines the fewest bits necessary to express the BigUint.

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pub fn pow(&self, exponent: u32) -> BigUint

Returns self ^ exponent.

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pub fn modpow(&self, exponent: &BigUint, modulus: &BigUint) -> BigUint

Returns (self ^ exponent) % modulus.

Panics if the modulus is zero.

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pub fn sqrt(&self) -> BigUint

Returns the truncated principal square root of self – see Roots::sqrt

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pub fn cbrt(&self) -> BigUint

Returns the truncated principal cube root of self – see Roots::cbrt.

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pub fn nth_root(&self, n: u32) -> BigUint

Returns the truncated principal nth root of self – see Roots::nth_root.

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pub fn trailing_zeros(&self) -> Option<u64>

Returns the number of least-significant bits that are zero, or None if the entire number is zero.

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pub fn trailing_ones(&self) -> u64

Returns the number of least-significant bits that are ones.

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pub fn count_ones(&self) -> u64

Returns the number of one bits.

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pub fn bit(&self, bit: u64) -> bool

Returns whether the bit in the given position is set

Trait Implementations§

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impl Deref for SECP256K1_Q

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type Target = BigUint

The resulting type after dereferencing.
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fn deref(&self) -> &BigUint

Dereferences the value.
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impl LazyStatic for SECP256K1_Q

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