From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:19:13 +0200 Subject: Adding upstream version 1.21.8. Signed-off-by: Daniel Baumann --- src/crypto/ecdsa/example_test.go | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 src/crypto/ecdsa/example_test.go (limited to 'src/crypto/ecdsa/example_test.go') diff --git a/src/crypto/ecdsa/example_test.go b/src/crypto/ecdsa/example_test.go new file mode 100644 index 0000000..652c165 --- /dev/null +++ b/src/crypto/ecdsa/example_test.go @@ -0,0 +1,32 @@ +// 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) +} -- cgit v1.2.3