go example_test 源码
golang example_test 代码
文件路径:/src/crypto/ecdsa/example_test.go
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ecdsa_test
import (
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/sha256"
"fmt"
)
func Example() {
privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
panic(err)
}
msg := "hello, world"
hash := sha256.Sum256([]byte(msg))
sig, err := ecdsa.SignASN1(rand.Reader, privateKey, hash[:])
if err != nil {
panic(err)
}
fmt.Printf("signature: %x\n", sig)
valid := ecdsa.VerifyASN1(&privateKey.PublicKey, hash[:], sig)
fmt.Println("signature verified:", valid)
}
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