SHA256 hashes

Context

The crypto/sha256 package computes SHA‑256 hashes. Use sha256.Sum256 for a quick hash or sha256.New for streaming.

Example

Hash a string and a file (simulated).

Code example

package main

import (
    "crypto/sha256"
    "fmt"
)

func main() {
    data := []byte("hello world")
    hash := sha256.Sum256(data)
    fmt.Printf("%x\n", hash)

    // Using New
    h := sha256.New()
    h.Write([]byte("hello "))
    h.Write([]byte("world"))
    fmt.Printf("%x\n", h.Sum(nil))
}

Output

b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9
b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9

Useful links

• crypto/sha256 package
• Go by Example: SHA256 Hashes