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added save\current\secure and .enc cont cli command, fixed few bugs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| package util | ||
|
|
||
| import ( | ||
| "crypto/aes" | ||
| "crypto/cipher" | ||
| "crypto/rand" | ||
| "crypto/sha256" | ||
| "io" | ||
| "os" | ||
|
|
||
| "golang.org/x/crypto/pbkdf2" | ||
| ) | ||
|
|
||
| func SaveSecure(textToEncrypt string, filename string, password string) { | ||
| // Example usage | ||
| // password := "your-password" | ||
| // textToEncrypt := "Hello, World!" | ||
|
|
||
| // Encrypt | ||
| encryptedData, err := encrypt([]byte(textToEncrypt), password) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| // Write encrypted data to a file | ||
| err = os.WriteFile(filename, encryptedData, 0644) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| } | ||
|
|
||
| func ReadSecure(filename string, password string) string { | ||
| // Read encrypted data from the file | ||
| data, err := os.ReadFile(filename) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| // Decrypt | ||
| decryptedData, err := decrypt(data, password) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| return string(decryptedData) | ||
| } | ||
|
|
||
| func encrypt(data []byte, passphrase string) ([]byte, error) { | ||
| key := createPBKDF2Key(passphrase) | ||
| block, _ := aes.NewCipher(key) | ||
| gcm, err := cipher.NewGCM(block) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| nonce := make([]byte, gcm.NonceSize()) | ||
| if _, err = io.ReadFull(rand.Reader, nonce); err != nil { | ||
| return nil, err | ||
| } | ||
| ciphertext := gcm.Seal(nonce, nonce, data, nil) | ||
| return ciphertext, nil | ||
| } | ||
|
|
||
| func decrypt(data []byte, passphrase string) ([]byte, error) { | ||
| key := createPBKDF2Key(passphrase) | ||
| block, err := aes.NewCipher(key) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| gcm, err := cipher.NewGCM(block) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| nonceSize := gcm.NonceSize() | ||
| nonce, ciphertext := data[:nonceSize], data[nonceSize:] | ||
| plaintext, err := gcm.Open(nil, nonce, ciphertext, nil) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return plaintext, nil | ||
| } | ||
|
|
||
| func createPBKDF2Key(passphrase string) []byte { | ||
| salt := []byte("your-unique-salt") // Use a unique and random salt. | ||
| return pbkdf2.Key([]byte(passphrase), salt, 4096, 32, sha256.New) | ||
| } | ||