Add erasure and compression self-tests (#11918)

Ensure that we don't use potentially broken algorithms for critical functions, whether it be a runtime problem or implementation problem for a specific platform.

cmd/globals.go

@@ -18,6 +18,7 @@ package cmd
 
 import (
 	"crypto/x509"
+	"errors"
 	"net/http"
 	"os"
 	"sync"
@@ -295,6 +296,8 @@ var (
 	// Add new variable global values here.
 )
 
+var errSelfTestFailure = errors.New("self test failed. unsafe to start server")
+
 // Returns minio global information, as a key value map.
 // returned list of global values is not an exhaustive
 // list. Feel free to add new relevant fields.