cryptoutils

package

v0.1.1 Latest Latest Go to latest Published: Oct 19, 2024 License: Apache-2.0 Imports: 11 Imported by: 0

Details

View Source

const (
	AES_KEY_SIZE            = 32
	AES_MIN_CIPHERTEXT_SIZE = aes.BlockSize + 12
)

View Source

const (
	RSA_KEY_SIZE   = 4096
	SIGNATURE_SIZE = 512
)

This section is empty.

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

decrypts a ciphertext encrypted with AesEncrypt

func AesEncrypt(plaintext []byte, key []byte) ([]byte, error)

encrypts a provided plaintext with AES256 in GCM mode, and appends a nonce to the start of the ciphertext

func ExportRsaPub(pubKey *rsa.PublicKey) []byte

exports the pem-encoded byte array of a given RSA key

func GenAesKey() []byte

returns a radnomly generated 256-bit aes key

func GenNonce() []byte

generates a randomized nonce to be used for key challenges

func GenerateRsaKeys(keyPath string) error

generates a pair of RSA keys and saves them to the provided path

func HashKey(plaintext []byte, salt []byte) []byte

creates a sha256 to be used as a key, given plaintext and salt

func ImportRsa(keyPath string) (rsa.PrivateKey, rsa.PublicKey, error)

imports a pair of RSA keys from a file path

func ImportRsaPub(pemStr []byte) (rsa.PublicKey, error)

imports an RSA public key from a byte string of the pem-encoded key

func RsaDecrypt(prvKey *rsa.PrivateKey, ciphertext []byte) ([]byte, error)

decrypts a given plaintext with the provided private key

func RsaEncrypt(pubKey *rsa.PublicKey, plaintext []byte) ([]byte, error)

encrypts a given plaintext with the provided public key

func RsaSign(prvKey rsa.PrivateKey, plaintext []byte) ([]byte, error)

func RsaVerify(pubKey rsa.PublicKey, plaintext []byte, signature []byte) bool

This section is empty.