padded 32 byte private key

[kant777]

No description provided.

[kant777]

I am able to verify the public key associated with padded private key bytes as well as the original private key bytes(that has not padding) and the public key for both remains the same. More tests would be great @iowar

[kant777]

just to demonstrate this idea run the following code

package main

import (
	"fmt"
	"math/big"
)

func main() {
	val1 := new(big.Int).SetInt64(256)
	val2 := new(big.Int).SetInt64(16)

	fmt.Printf("256 -> %v\n", val1.Bytes()) // [1 0]
	fmt.Printf("16  -> %v\n", val2.Bytes()) // [16]
}

256 in binary is 100000000 (9 bits), which requires two bytes to represent: 00000001 00000000 or [1 0] in a byte slice.
16 in binary is 10000 (5 bits), which fits into a single byte: 00010000 or [16] in a byte slice.

The PrivKey.D is *big.Int and .Bytes() method returns just the necessary bytes to represent the number, without any leading zeros

[iowar]

It has been tested, and the signed messages were successfully verified; no issue appears