module Secp256k1::Util

Overview

a collection of utilities for secp256k1 key management

Defined in:

util.cr

Class Method Summary

• .decode_compressed_public_key(pub : String, prime = EC_PARAM_PRIME)

  decodes a public key as ec point from a compressed public key string

• .new_private_key

  a helper to generate 32 pseudo-random bytes

• .public_key_compressed_prefix(p : EC_Point)

  exports the compressed public key from an ec point with prefix 02 or 03

• .public_key_from_private(priv : BigInt)

  wrapper function to perform an ec multiplication with the generator point and a provided private key

• .public_key_uncompressed(p : EC_Point)

  exports the uncompressed public key from an ec point without prefix

• .public_key_uncompressed_prefix(p : EC_Point)

  exports the uncompressed public key from an ec point with prefix 04

• .restore_public_key(pub : String)

  detects public key type and tries to restore the ec point from it

• .to_padded_hex_01(i : Int32)

  generic tool to encode single hex bytes as strings, e.g., "07"

• .to_padded_hex_32(i : BigInt)

  utility tool to ensure hex keys are always 32 bytes it pads the number with leading zeros if not

Class Method Detail