diff --git a/scripts/chain-initiator/retrieve-snapshot.go b/scripts/chain-initiator/retrieve-snapshot.go
index f72833ff08..5bfc5c9059 100644
--- a/scripts/chain-initiator/retrieve-snapshot.go
+++ b/scripts/chain-initiator/retrieve-snapshot.go
@@ -3,11 +3,38 @@ package main
 import (
 	"log"
 	"os/exec"
+	"strings"
 )
 
 func retrieveSnapshot(snapshotUrl, homePath string) {
-	// Construct the command string
-	cmdString := "curl -o - -L " + snapshotUrl + " | lz4 -c -d - | tar -x -C " + homePath
+	var cmdString string
+	isUrl := strings.HasPrefix(snapshotUrl, "http://") || strings.HasPrefix(snapshotUrl, "https://")
+
+	// Check the file type and construct the command accordingly
+	if strings.HasSuffix(snapshotUrl, ".tar.lz4") {
+		if isUrl {
+			cmdString = "curl -o - -L " + snapshotUrl + " | lz4 -c -d - | tar -x -C " + homePath
+		} else {
+			cmdString = "lz4 -c -d " + snapshotUrl + " | tar -x -C " + homePath
+		}
+	} else if strings.HasSuffix(snapshotUrl, ".tar.gz") {
+		if isUrl {
+			cmdString = "curl -o - -L " + snapshotUrl + " | tar -xz -C " + homePath
+		} else {
+			cmdString = "tar -xz -f " + snapshotUrl + " -C " + homePath
+		}
+	} else if strings.HasSuffix(snapshotUrl, ".tar") {
+		if isUrl {
+			cmdString = "curl -o - -L " + snapshotUrl + " | tar -x -C " + homePath
+		} else {
+			cmdString = "tar -x -f " + snapshotUrl + " -C " + homePath
+		}
+	} else {
+		log.Fatalf(Red+"Invalid snapshot url or path: %s", snapshotUrl)
+	}
+
+	// Print cmdString
+	log.Printf(Green+"Retrieving snapshot using command: %s", cmdString)
 
 	// Execute the command using /bin/sh
 	cmd := exec.Command("/bin/sh", "-c", cmdString)
diff --git a/test/integration/framework/src/siftool/eth.py b/test/integration/framework/src/siftool/eth.py
index 761283cc11..5464c2e98d 100644
--- a/test/integration/framework/src/siftool/eth.py
+++ b/test/integration/framework/src/siftool/eth.py
@@ -116,7 +116,7 @@ def set_private_key(self, addr: Address, private_key: PrivateKey):
         if private_key is None:
             self.private_keys.pop(addr)  # Remove
         else:
-            assert re.match("^([0-9a-f]{64})$", private_key)
+            assert re.match("^([0-9a-f]{62}|[0-9a-f]{64})$", private_key), "Private key must be 62 or 64 hexadecimal characters long"
             assert addr == a.from_key(private_key).address, f"Private key does not correspond to given address {addr}"
             self.private_keys[addr] = private_key
         if self.is_local_node: