Update installation instructions and examples; add TOC

This commit is contained in:
Daniel Huigens 2019-05-14 22:53:39 +02:00
parent b2bab445eb
commit f08f01b7d9

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@ -1,17 +1,54 @@
# GopenPGP Wrapper Library # GopenPGP
GopenPGP is a high-level OpenPGP library built on top of [a fork of the golang
crypto library](https://github.com/ProtonMail/crypto).
**Table of Contents**
<!-- TOC depthFrom:2 -->
- [Download/Install](#downloadinstall)
- [Documentation](#documentation)
- [Using with Go Mobile](#using-with-go-mobile)
- [Other notes](#other-notes)
- [Examples](#examples)
- [Set up](#set-up)
- [Encrypt and decrypt](#encrypt-and-decrypt)
- [Encrypt / Decrypt with password](#encrypt--decrypt-with-password)
- [Encrypt / Decrypt with PGP keys](#encrypt--decrypt-with-pgp-keys)
- [Generate key](#generate-key)
- [Sign](#sign)
- [Detached signatures](#detached-signatures)
<!-- /TOC -->
## Download/Install ## Download/Install
Run `go get -u github.com/ProtonMail/gopenpgp`, or manually `git clone` the 1. Run `go get -u github.com/ProtonMail/gopenpgp`, or manually `git clone` this
repository into `$GOPATH/src/github.com/ProtonMail/gopenpgp`. repository into `$GOPATH/src/github.com/ProtonMail/gopenpgp`.
This library is meant to be used together with https://github.com/ProtonMail/crypto. 2. [Install Glide](https://github.com/Masterminds/glide#install):
```bash
curl https://glide.sh/get | sh
```
3. Install dependencies using glide:
```bash
cd $GOPATH/src/github.com/ProtonMail/gopenpgp
glide install
```
## Documentation
https://godoc.org/github.com/ProtonMail/gopenpgp/crypto
## Using with Go Mobile ## Using with Go Mobile
Setup Go Mobile and build/bind the source code: Setup Go Mobile and build/bind the source code:
Go Mobile repo: https://github.com/golang/mobile Go Mobile repo: https://github.com/golang/mobile
Go Mobile wiki: https://github.com/golang/go/wiki/Mobile Go Mobile wiki: https://github.com/golang/go/wiki/Mobile
1. Install Go: `brew install go` 1. Install Go: `brew install go`
@ -21,35 +58,38 @@ Go Mobile wiki: https://github.com/golang/go/wiki/Mobile
5. Set env: `export ANDROID_HOME="/AndroidSDK"` (path to your SDK) 5. Set env: `export ANDROID_HOME="/AndroidSDK"` (path to your SDK)
6. Init gomobile: `gomobile init -ndk /AndroidSDK/ndk-bundle/` (path to your NDK) 6. Init gomobile: `gomobile init -ndk /AndroidSDK/ndk-bundle/` (path to your NDK)
7. Build examples: 7. Build examples:
`gomobile build -target=android #or ios` `gomobile build -target=android #or ios`
Bind examples: Bind examples:
`gomobile bind -target ios -o frameworks/name.framework` `gomobile bind -target ios -o frameworks/name.framework`
`gomobile bind -target android` `gomobile bind -target android`
The bind will create framework for iOS and jar&aar files for Android (x86_64 and ARM). The bind will create framework for iOS and jar&aar files for Android (x86_64 and ARM).
## Other notes ## Other notes
This project uses glide to setup vendors. If you wish to use build.sh, you may need to modify the paths in it.
Interfacing between Go and Swift: Interfacing between Go and Swift:
https://medium.com/@matryer/tutorial-calling-go-code-from-swift-on-ios-and-vice-versa-with-gomobile-7925620c17a4. https://medium.com/@matryer/tutorial-calling-go-code-from-swift-on-ios-and-vice-versa-with-gomobile-7925620c17a4.
If you use build.sh, you may need to modify the paths in it.
## Examples ## Examples
### Set up ### Set up
```go
import "github.com/ProtonMail/gopenpgp/crypto"
```
### Encrypt and decrypt ### Encrypt and decrypt
Encryption and decryption will use the AES256 algorithm by default. Encryption and decryption will use the AES256 algorithm by default.
#### Encrypt / Decrypt with password #### Encrypt / Decrypt with password
```
var pgp = GopenPGP{} ```go
var pgp = crypto.GopenPGP{}
const password = "my secret password" const password = "my secret password"
@ -61,7 +101,8 @@ message, err := pgp.DecryptMessageWithPassword(armor, password)
``` ```
#### Encrypt / Decrypt with PGP keys #### Encrypt / Decrypt with PGP keys
```
```go
// put keys in backtick (``) to avoid errors caused by spaces or tabs // put keys in backtick (``) to avoid errors caused by spaces or tabs
const pubkey = `-----BEGIN PGP PUBLIC KEY BLOCK----- const pubkey = `-----BEGIN PGP PUBLIC KEY BLOCK-----
... ...
@ -91,10 +132,12 @@ plainText = signedText.String
``` ```
### Generate key ### Generate key
Keys are generated with the `GenerateKey` function, that returns the armored key as a string and a potential error.
Keys are generated with the `GenerateKey` function, that returns the armored key as a string and a potential error.
The library supports RSA with different key lengths or Curve25519 keys. The library supports RSA with different key lengths or Curve25519 keys.
```
var pgp = GopenPGP{} ```go
var pgp = crypto.GopenPGP{}
var ( var (
localPart = "name.surname" localPart = "name.surname"
@ -107,7 +150,7 @@ var (
// RSA // RSA
rsaKey, err := pgp.GenerateKey(localPart, domain, passphrase, "rsa", rsaBits) rsaKey, err := pgp.GenerateKey(localPart, domain, passphrase, "rsa", rsaBits)
// Curve 25519 // Curve25519
ecKey, err := pgp.GenerateKey(localPart, domain, passphrase, "x25519", ecBits) ecKey, err := pgp.GenerateKey(localPart, domain, passphrase, "x25519", ecBits)
``` ```