cryptography

func DecryptAes ¶

func DecryptAes(ciphertext []byte, key []byte) ([]byte, error)

DecryptAes takes in a cipher text and decryptes the data. They key needs to be either 16, 24 or 32 bits.

func DecryptWithRsaPrivateKey ¶

func DecryptWithRsaPrivateKey(ciphertext []byte, priv *rsa.PrivateKey) ([]byte, error)

Decrypts data with private RSA key

func EncryptAes ¶

func EncryptAes(data []byte, key []byte) ([]byte, error)

EncryptAes takes in a plaintext string and a key and returns the encrypted data. They key needs to be either 16, 24 or 32 bits.

func EncryptWithRsaPublicKey ¶

func EncryptWithRsaPublicKey(msg []byte, pub *rsa.PublicKey) ([]byte, error)

Encrypts data with public RSA key

func GenerateMd5FromStrings ¶

func GenerateMd5FromStrings(strings ...string) (md5Hash string)

func GenerateRSAKeyPair ¶

func GenerateRSAKeyPair(bits int) (*rsa.PrivateKey, *rsa.PublicKey, error)

Generates a new RSA key pair. 2048 bits is considered the standard.

func GenerateRandomBytes ¶

func GenerateRandomBytes(n int) []byte

Generates cryptographically secure random byte array of length n

func RSAPublicKeyToString ¶

func RSAPublicKeyToString(pub *rsa.PublicKey) string

RSA public key to base64 encoded string

func RsaPrivateKeyToString ¶

func RsaPrivateKeyToString(priv *rsa.PrivateKey) string

RSA private key to base64 encoded string

func StringToRsaPrivateKey ¶

func StringToRsaPrivateKey(priv string) (*rsa.PrivateKey, error)

Given a base64 encoded RSA private key, returns an *rsa.PrivateKey object

func StringToRsaPublicKey ¶

func StringToRsaPublicKey(pub string) (*rsa.PublicKey, error)

Given a base64 encoded RSA public key, returns an *rsa.PublicKey object