Merge pull request #6 from knbr13/4-blake2-instead-of-md5

use blake2b instead of md5

Author: knbr13

go.mod

@@ -5,6 +5,7 @@ go 1.24.0
 require (
 	github.com/charmbracelet/bubbletea v1.3.4
 	github.com/charmbracelet/lipgloss v1.0.0
+	golang.org/x/crypto v0.36.0
 )
 
 require (
@@ -20,7 +21,7 @@ require (
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/termenv v0.15.2 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
-	golang.org/x/sync v0.11.0 // indirect
-	golang.org/x/sys v0.30.0 // indirect
-	golang.org/x/text v0.3.8 // indirect
+	golang.org/x/sync v0.12.0 // indirect
+	golang.org/x/sys v0.31.0 // indirect
+	golang.org/x/text v0.23.0 // indirect
 )

go.sum

@@ -27,11 +27,13 @@ github.com/muesli/termenv v0.15.2/go.mod h1:Epx+iuz8sNs7mNKhxzH4fWXGNpZwUaJKRS1n
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
 github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
-golang.org/x/sync v0.11.0 h1:GGz8+XQP4FvTTrjZPzNKTMFtSXH80RAzG+5ghFPgK9w=
-golang.org/x/sync v0.11.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
+golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
+golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
+golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
+golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
-golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
+golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
+golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
+golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=

hash.go

@@ -1,11 +1,12 @@
 package main
 
 import (
-	"crypto/md5"
 	"encoding/hex"
 	"fmt"
 	"io"
 	"os"
+
+	"golang.org/x/crypto/blake2b"
 )
 
 func createFileHash(filePath string) (string, error) {
@@ -15,7 +16,11 @@ func createFileHash(filePath string) (string, error) {
 	}
 	defer file.Close()
 
-	hash := md5.New()
+	hash, err := blake2b.New256(nil)
+	if err != nil {
+		return "", fmt.Errorf("failed to create BLAKE2b hash: %w", err)
+	}
+
 	if _, err := io.Copy(hash, file); err != nil {
 		return "", fmt.Errorf("failed to compute hash: %w", err)
 	}

hash_test.go

@@ -1,12 +1,13 @@
 package main
 
 import (
-	"crypto/md5"
 	"encoding/hex"
 	"io"
 	"os"
 	"path/filepath"
 	"testing"
+
+	"golang.org/x/crypto/blake2b"
 )
 
 func TestCreateFileHash(t *testing.T) {
@@ -30,7 +31,10 @@ func TestCreateFileHash(t *testing.T) {
 	}
 	contentFile.Close()
 
-	h := md5.New()
+	h, err := blake2b.New256(nil)
+	if err != nil {
+		t.Fatalf("Failed to create BLAKE2b hash: %v", err)
+	}
 	n, err := io.WriteString(h, content)
 	if err != nil {
 		t.Error(err)
@@ -40,7 +44,10 @@ func TestCreateFileHash(t *testing.T) {
 	}
 	expectedContentHash := hex.EncodeToString(h.Sum(nil))
 
-	emptyHash := md5.New()
+	emptyHash, err := blake2b.New256(nil)
+	if err != nil {
+		t.Fatalf("Failed to create BLAKE2b hash for empty file: %v", err)
+	}
 	expectedEmptyHash := hex.EncodeToString(emptyHash.Sum(nil))
 
 	tests := []struct {