crypto

package

v0.0.0-...-7aac46a Latest Latest Go to latest Published: Mar 10, 2023 License: MIT Imports: 9 Imported by: 0

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Repository

github.com/mitghi/protox

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README ¶

utils/crypto

Documentation ¶

Overview ¶

Crypto contains functionalities for secure and reliable encryption.

Index ¶

Constants
Variables
func DecryptWith(privk *rsa.PrivateKey, ct []byte) ([]byte, error)
func EncryptWith(pubk *rsa.PublicKey, text []byte) ([]byte, error)
func LoadPrivateKey(filename string) (*rsa.PrivateKey, error)
func LoadPublicKey(filename string) (*rsa.PublicKey, error)
func SignWith(privk *rsa.PrivateKey, text []byte) ([]byte, error)
func VerifySignatureWith(pubk *rsa.PublicKey, text []byte, sig []byte) error
type Crypto
- func NewCrypto() *Crypto
- func NewCryptoFromArgs(salt *[]byte, n int, r int, p int, keyLen int) *Crypto
type RSA

Constants ¶

View Source

const (
	RSADefaultC = 4096
)

Variables ¶

View Source

var (
	RSALenError    error = errors.New("crypto: invalid rsa len.")
	RSAPow2Error   error = errors.New("crypto: not power of 2.")
	RSAInvalidFile error = errors.New("crypto: no public/private key in file.")
	RSAUnsupported error = errors.New("crypto: unsupported block type.")
)

Functions ¶

func DecryptWith ¶

func DecryptWith(privk *rsa.PrivateKey, ct []byte) ([]byte, error)

func EncryptWith ¶

func EncryptWith(pubk *rsa.PublicKey, text []byte) ([]byte, error)

func LoadPrivateKey ¶

func LoadPrivateKey(filename string) (*rsa.PrivateKey, error)

func LoadPublicKey ¶

func LoadPublicKey(filename string) (*rsa.PublicKey, error)

func SignWith ¶

func SignWith(privk *rsa.PrivateKey, text []byte) ([]byte, error)

func VerifySignatureWith ¶

func VerifySignatureWith(pubk *rsa.PublicKey, text []byte, sig []byte) error

Types ¶

type Crypto ¶

type Crypto struct {
	// contains filtered or unexported fields
}

Crypto is a struct containing all necessary information used during encryption/decryption. The struct members are not publicely exposed ( unimported ) and is only accessible via provided methods.

func NewCrypto ¶

func NewCrypto() *Crypto

NewCrypto returns a new struct pointer of type `Crypto`. It uses default settings for n, r, p, keyLen respectively 16384, 8, 1, 32.

func NewCryptoFromArgs ¶

func NewCryptoFromArgs(salt *[]byte, n int, r int, p int, keyLen int) *Crypto

NewCryptoFromArgs returns a new struct pointer of type `Crypto` and sets the internal according to given arguments. It is not neccessary to use this function directly as the default settings used by `NewCrypto()` is sufficient.

func (*Crypto) Decrypt ¶

func (c *Crypto) Decrypt(input *[]byte) (dec string, err error)

Decrypt returns the decrypted data. Simlilar to `Encrypt`, error must be checked explicitely.

func (*Crypto) Encrypt ¶

func (c *Crypto) Encrypt(input *[]byte) (enc string, err error)

Encrypt returns the encrypted data. It may fail, error should be explicitely checked to assure correctness.

func (*Crypto) SetSalt ¶

func (c *Crypto) SetSalt(salt *[]byte)

SetSalt assigns internal salt value to a given `salt` byte array. It must be called on each new `Crypto` instance.

type RSA ¶

type RSA struct {
	// contains filtered or unexported fields
}

func FromFile ¶

func FromFile(f string) (*RSA, error)

func MakeRSA ¶

func MakeRSA(c int) (ret *RSA, err error)

func NewRSA ¶

func NewRSA(privk *rsa.PrivateKey, pubk *rsa.PublicKey) *RSA

func (*RSA) Decrypt ¶

func (r *RSA) Decrypt(ct []byte) ([]byte, error)

func (*RSA) Encrypt ¶

func (r *RSA) Encrypt(text []byte) ([]byte, error)

func (*RSA) GetPrivateKey ¶

func (r *RSA) GetPrivateKey() *rsa.PrivateKey

func (*RSA) GetPublicKey ¶

func (r *RSA) GetPublicKey() *rsa.PublicKey

func (*RSA) MarhsalPrivateKey ¶

func (r *RSA) MarhsalPrivateKey() ([]byte, error)

func (*RSA) MarshalPublicKey ¶

func (r *RSA) MarshalPublicKey() ([]byte, error)

func (*RSA) Save ¶

func (r *RSA) Save() error

func (*RSA) Sign ¶

func (r *RSA) Sign(text []byte) ([]byte, error)

func (*RSA) VerifySignature ¶

func (r *RSA) VerifySignature(text []byte, sig []byte) error

Source Files ¶

View all Source files

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