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// Copyright © 2016 Alan A. A. Donovan & Brian W. Kernighan.
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
// See page 83.
// The sha256 command computes the SHA256 hash (an array) of a string.
package main
import "fmt"
//!+
import "crypto/sha256"
func main() {
c1 := sha256.Sum256([]byte("x"))
c2 := sha256.Sum256([]byte("X"))
fmt.Printf("%x\n%x\n%t\n%T\n", c1, c2, c1 == c2, c1)
// Output:
// 2d711642b726b04401627ca9fbac32f5c8530fb1903cc4db02258717921a4881
// 4b68ab3847feda7d6c62c1fbcbeebfa35eab7351ed5e78f4ddadea5df64b8015
// false
// [32]uint8
}
//!-
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