Verify proofs by calling the signer service

Before this commit, the infohub was verifying VP proofs by itself. Now this is delegated to the signer service for consistency, as the signer service can act as both producer and verifier of proofs.

Closes #14 (closed)

cmd/infohub/main.go

@@ -76,7 +76,7 @@ func main() {
 	}
 
 	httpClient := httpClient()
-	credentials := credential.NewIssuer(cfg.Credential.IssuerURI, httpClient)
+	credentials := credential.New(cfg.Credential.IssuerURI, httpClient)
 
 	// create policy client
 	policy := policy.New(cfg.Policy.Addr, policy.WithHTTPClient(httpClient))
@@ -206,14 +206,14 @@ func httpClient() *http.Client {
 		Transport: &http.Transport{
 			Proxy: http.ProxyFromEnvironment,
 			DialContext: (&net.Dialer{
-				Timeout: 30 * time.Second,
+				Timeout: 10 * time.Second,
 			}).DialContext,
 			MaxIdleConns:        100,
 			MaxIdleConnsPerHost: 100,
 			TLSHandshakeTimeout: 10 * time.Second,
 			IdleConnTimeout:     60 * time.Second,
 		},
-		Timeout: 30 * time.Second,
+		Timeout: 10 * time.Second,
 	}
 }