go-dkim

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A Go library to create and verify DKIM signatures (migrated)

go-dkim 최신버젼 다운로드

최종 버전 다운로드 (.zip)

// repository documentation

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# go-dkim

[![GoDoc](https://godoc.org/github.com/emersion/go-dkim?status.svg)](https://godoc.org/github.com/emersion/go-dkim)
[![builds.sr.ht status](https://builds.sr.ht/~emersion/go-dkim.svg)](https://builds.sr.ht/~emersion/go-dkim?)
[![codecov](https://codecov.io/gh/emersion/go-dkim/branch/master/graph/badge.svg)](https://codecov.io/gh/emersion/go-dkim)

A Go library to create and verify [DKIM signatures](https://tools.ietf.org/html/rfc6376).

> **Note**: this repository has been migrated to https://github.com/emersion/go-msgauth

## Usage

### Sign

```go
r := strings.NewReader(mailString)

options := &SignOptions{
	Domain: "example.org",
	Selector: "brisbane",
	Signer: privateKey,
}

var b bytes.Buffer
if err := dkim.Sign(&b, r, options); err != nil {
	log.Fatal(err)
}
```

### Verify

```go
r := strings.NewReader(mailString)

verifications, err := dkim.Verify(r)
if err != nil {
	log.Fatal(err)
}

for _, v := range verifications {
	if v.Err == nil {
		log.Println("Valid signature for:", v.Domain)
	} else {
		log.Println("Invalid signature for:", v.Domain, v.Err)
	}
}
```

### FAQ

**Why can't I verify a `mail.Message` directly?** A `mail.Message` header is
already parsed, and whitespace characters (especially continuation lines) are
removed. Thus, the signature computed from the parsed header is not the same as
the one computed from the raw header.

**How can I publish my public key?** You have to add a TXT record to your DNS
zone. See [RFC 6376 appendix C](https://tools.ietf.org/html/rfc6376#appendix-C).

## License

MIT

go-dkim

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