Converting byte array to hex format

Question

I am hashing passwords using Sha256.Sum256 then I'm supposed to store the hashed password on the database, but what I get instead is a byte array instead of a hex value. I cannot do ("%x", hash) because that only works on fmt

"I cannot do ("%x", hash) because that only works on fmt" I don't understand this. This works, and returns the hexa string representation: fmt.Sprintf("%x", sha256.Sum256([]byte{1, 2})) — icza
– icza, Commented May 11, 2019 at 11:06
You may also do: hex.EncodeToString(hash[:]), see Why can not convert [Size]byte to string in Go? — icza
– icza, Commented May 11, 2019 at 11:09

Vorsprung · Accepted Answer · 2019-05-11 15:36:22Z

1

I think what you are asking is "how do I make a string of the hexadecimal representation of the byte array"

package main

import (
    "crypto/sha256"
    "fmt"
)

func main() {
    password := "abc123"
    sum := sha256.Sum256([]byte(password))
    hexstring := fmt.Sprintf("%x", sum)
    fmt.Println(hexstring)
}

answered May 11, 2019 at 15:36

Vorsprung

34.9k5 gold badges44 silver badges71 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Converting byte array to hex format

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related