crypto

Documentation

Index

• Constants
• Variables
• func Decrypt(ciphertext string, key string) (string, error)
• func Encrypt(plaintext string, key string) (string, error)
• func GenerateKey() (string, error)

Constants

const (
	SizeKey = 32
)

Variables

var (
	ErrVerifyKEy      = errors.New("err verify key on standard aes")
	ErrBlockCipher    = errors.New("err create 128-bit block cipher")
	ErrRandRead       = errors.New("err rand read encrypt")
	ErrAuthCiphertext = errors.New("err open decrypts and authenticates ciphertext")
	ErrGenerateKey    = errors.New("err generate key")
)

Functions

func Decrypt

func Decrypt(ciphertext string, key string) (string, error)

Decrypt authenticates and decrypts ciphertext using: - Same key used for encryption - Embedded nonce from ciphertext Returns plaintext or error if decryption/authentication fails

func Encrypt

func Encrypt(plaintext string, key string) (string, error)

Encrypt securely encrypts plaintext using AES-GCM with: - Provided encryption key - Random nonce generation Returns ciphertext or error if encryption fails

func GenerateKey

func GenerateKey() (string, error)

GenerateKey creates a cryptographically secure: - 256-bit (32-byte) random key - Suitable for AES-256 encryption Returns key or error if random generation fails