codec

package

v0.2.0 Latest Latest Go to latest Published: Sep 2, 2026 License: MIT Imports: 15 Imported by: 0

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Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/lemongoff/hexas

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Documentation ¶

Index ¶

Variables
func ComputeKey(pubKey, priKey *big.Int) (*big.Int, error)
func EcbDecrypt(key, src []byte) ([]byte, error)deprecated
func EcbDecryptBase64(key, src string) (string, error)deprecated
func EcbEncrypt(key, src []byte) ([]byte, error)deprecated
func EcbEncryptBase64(key, src string) (string, error)deprecated
func Gunzip(bs []byte) ([]byte, error)
func Gzip(bs []byte) []byte
func Hmac(key []byte, body string) []byte
func HmacBase64(key []byte, body string) string
func NewECBDecrypter(b cipher.Block) cipher.BlockModedeprecated
func NewECBEncrypter(b cipher.Block) cipher.BlockModedeprecated
func NewPublicKey(bs []byte) *big.Int
type DhKey
- func GenerateKey() (*DhKey, error)
- func (k *DhKey) Bytes() []byte
type RsaDecrypter
- func NewRsaDecrypter(file string) (RsaDecrypter, error)deprecated
- func NewRsaOAEPDecrypter(file string) (RsaDecrypter, error)
type RsaEncrypter
- func NewRsaEncrypter(key []byte) (RsaEncrypter, error)deprecated
- func NewRsaOAEPEncrypter(key []byte) (RsaEncrypter, error)

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	// ErrInvalidPriKey indicates the invalid private key.
	ErrInvalidPriKey = errors.New("invalid private key")
	// ErrInvalidPubKey indicates the invalid public key.
	ErrInvalidPubKey = errors.New("invalid public key")
	// ErrPubKeyOutOfBound indicates the public key is out of bound.
	ErrPubKeyOutOfBound = errors.New("public key out of bound")
)

View Source

var (
	// ErrPrivateKey indicates the invalid private key.
	ErrPrivateKey = errors.New("private key error")
	// ErrPublicKey indicates the invalid public key.
	ErrPublicKey = errors.New("failed to parse PEM block containing the public key")
	// ErrNotRsaKey indicates the invalid RSA key.
	ErrNotRsaKey = errors.New("key type is not RSA")
)

View Source

var ErrPaddingSize = errors.New("padding size error")

ErrPaddingSize indicates bad padding size.

Functions ¶

func ComputeKey ¶

func ComputeKey(pubKey, priKey *big.Int) (*big.Int, error)

ComputeKey returns a key from public key and private key.

func EcbDecrypt deprecated

func EcbDecrypt(key, src []byte) ([]byte, error)

Deprecated: EcbDecrypt decrypts src with the given key. ECB mode is insecure for multi-block data. Use AES-GCM instead.

func EcbDecryptBase64 deprecated

func EcbDecryptBase64(key, src string) (string, error)

Deprecated: EcbDecryptBase64 decrypts base64 encoded src with the given base64 encoded key. The returned string is also base64 encoded. ECB mode is insecure for multi-block data. Use AES-GCM instead.

func EcbEncrypt deprecated

func EcbEncrypt(key, src []byte) ([]byte, error)

Deprecated: EcbEncrypt encrypts src with the given key. ECB mode is insecure for multi-block data. Use AES-GCM instead.

func EcbEncryptBase64 deprecated

func EcbEncryptBase64(key, src string) (string, error)

Deprecated: EcbEncryptBase64 encrypts base64 encoded src with the given base64 encoded key. The returned string is also base64 encoded. ECB mode is insecure for multi-block data. Use AES-GCM instead.

func Gunzip ¶

func Gunzip(bs []byte) ([]byte, error)

Gunzip uncompresses bs.

func Gzip ¶

func Gzip(bs []byte) []byte

Gzip compresses bs.

func Hmac ¶

func Hmac(key []byte, body string) []byte

Hmac returns HMAC bytes for body with the given key.

func HmacBase64 ¶

func HmacBase64(key []byte, body string) string

HmacBase64 returns the base64 encoded string of HMAC for body with the given key.

func NewECBDecrypter deprecated

func NewECBDecrypter(b cipher.Block) cipher.BlockMode

Deprecated: NewECBDecrypter returns an ECB decrypter. ECB mode is insecure for multi-block data. Use AES-GCM instead.

func NewECBEncrypter deprecated

func NewECBEncrypter(b cipher.Block) cipher.BlockMode

Deprecated: NewECBEncrypter returns an ECB encrypter. ECB mode is insecure for multi-block data. Use AES-GCM instead.

func NewPublicKey ¶

func NewPublicKey(bs []byte) *big.Int

NewPublicKey returns a public key from the given bytes.

Types ¶

type DhKey ¶

type DhKey struct {
	PriKey *big.Int
	PubKey *big.Int
}

DhKey defines the Diffie-Hellman key.

func GenerateKey ¶

func GenerateKey() (*DhKey, error)

GenerateKey returns a Diffie-Hellman key.

func (*DhKey) Bytes ¶

func (k *DhKey) Bytes() []byte

Bytes returns public key bytes.

type RsaDecrypter ¶

type RsaDecrypter interface {
	Decrypt(input []byte) ([]byte, error)
	DecryptBase64(input string) ([]byte, error)
}

RsaDecrypter represents a RSA decrypter.

func NewRsaDecrypter deprecated

func NewRsaDecrypter(file string) (RsaDecrypter, error)

Deprecated: NewRsaDecrypter returns a RsaDecrypter with the given file. PKCS#1 v1.5 padding is vulnerable to padding oracle attacks. Use NewRsaOAEPDecrypter instead.

func NewRsaOAEPDecrypter ¶

func NewRsaOAEPDecrypter(file string) (RsaDecrypter, error)

NewRsaOAEPDecrypter returns a RsaDecrypter using OAEP with SHA-256.

type RsaEncrypter ¶

type RsaEncrypter interface {
	Encrypt(input []byte) ([]byte, error)
}

RsaEncrypter represents a RSA encrypter.

func NewRsaEncrypter deprecated

func NewRsaEncrypter(key []byte) (RsaEncrypter, error)

Deprecated: NewRsaEncrypter returns a RsaEncrypter with the given key. PKCS#1 v1.5 padding is vulnerable to padding oracle attacks. Use NewRsaOAEPEncrypter instead.

func NewRsaOAEPEncrypter ¶

func NewRsaOAEPEncrypter(key []byte) (RsaEncrypter, error)

NewRsaOAEPEncrypter returns a RsaEncrypter using OAEP with SHA-256.

Source Files ¶

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