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|
package main
// go run . | bash
import (
"crypto/ed25519"
"crypto/rand"
"encoding/hex"
"flag"
"fmt"
"log"
"git.sigsum.org/sigsum-lib-go/pkg/types"
)
var (
shardHint = flag.Uint64("shard_hint", 0, "shard hint (decimal)")
checksum = flag.String("checksum", "", "checksum (hex)")
sk = flag.String("sk", "", "secret key (hex)")
domainHint = flag.String("domain_hint", "example.com", "domain hint (string)")
base_url = flag.String("base_url", "localhost:6965/testonly", "base url (string)")
)
func main() {
flag.Parse()
var privBuf [64]byte
var priv ed25519.PrivateKey = ed25519.PrivateKey(privBuf[:])
mustDecodeHex(*sk, priv[:])
var c types.Hash
if *checksum != "" {
mustDecodeHex(*checksum, c[:])
} else {
mustPutRandom(c[:])
}
msg := types.Statement{
ShardHint: *shardHint,
Checksum: c,
}
sig := ed25519.Sign(priv, msg.ToBinary())
fmt.Printf("echo \"shard_hint=%d\nchecksum=%x\nsignature=%x\nverification_key=%x\ndomain_hint=%s\" | curl --data-binary @- %s/sigsum/v0/add-leaf\n",
msg.ShardHint,
msg.Checksum[:],
sig,
priv.Public().(ed25519.PublicKey)[:],
*domainHint,
*base_url,
)
}
func mustDecodeHex(s string, buf []byte) {
b, err := hex.DecodeString(s)
if err != nil {
log.Fatal(err)
}
if len(b) != len(buf) {
log.Fatal("bad flag: invalid buffer length")
}
copy(buf, b)
}
func mustPutRandom(buf []byte) {
_, err := rand.Read(buf)
if err != nil {
log.Fatal(err)
}
}
|
