Documentation
¶
Index ¶
- Constants
- Variables
- func Pkcs7Pad(data []byte, size int) []byte
- func Pkcs7Unpad(data []byte) []byte
- func Salt(chars, salt, src string) string
- func Unsalt(chars, salt, src string) string
- type Blocker
- type Cryptor
- func NewAes128CBCCryptor(secret, hkdfinfo string) (Cryptor, error)
- func NewAes128GCMCryptor(secret, hkdfinfo string) (Cryptor, error)
- func NewAes192CBCCryptor(secret, hkdfinfo string) (Cryptor, error)
- func NewAes192GCMCryptor(secret, hkdfinfo string) (Cryptor, error)
- func NewAes256CBCCryptor(secret, hkdfinfo string) (Cryptor, error)
- func NewAes256GCMCryptor(secret, hkdfinfo string) (Cryptor, error)
- func NewAesCBCCryptor(secret, hkdfinfo string, bits int) (Cryptor, error)
- func NewAesGCMCryptor(secret, hkdfinfo string, bits int) (Cryptor, error)
- type Decryptor
- type Encryptor
- type Padder
- type Padding
- type Token
- type Tokener
Constants ¶
const (
SecretChars = str.Base64URL
)
Variables ¶
var ( ErrTokenLength = errors.New("invalid token length") ErrTokenTimestamp = errors.New("invalid token timestamp") )
var (
ErrCipherBytesTooShort = errors.New("cipher bytes too short")
)
Functions ¶
func Pkcs7Pad ¶
Pkcs7Pad returns the byte array passed as a parameter padded with bytes such that the new byte array will be an exact multiple of the expected block size. For example, if the expected block size is 8 bytes (e.g. PKCS #5) and that the initial byte array is:
[]byte{0x0A, 0x0B, 0x0C, 0x0D}
the returned array will be:
[]byte{0x0A, 0x0B, 0x0C, 0x0D, 0x04, 0x04, 0x04, 0x04}
The value of each octet of the padding is the size of the padding. If the array passed as a parameter is already an exact multiple of the block size, the original array will be padded with a full block.
func Pkcs7Unpad ¶
Pkcs7Unpad removes the padding of a given byte array, according to the same rules as described in the Pad function. For example if the byte array passed as a parameter is:
[]byte{0x0A, 0x0B, 0x0C, 0x0D, 0x04, 0x04, 0x04, 0x04}
the returned array will be:
[]byte{0x0A, 0x0B, 0x0C, 0x0D}
Types ¶
type Cryptor ¶
Cryptor concurrent safe cryptor
func NewAes128CBCCryptor ¶ added in v1.2.20
func NewAes128GCMCryptor ¶ added in v1.2.20
func NewAes192CBCCryptor ¶ added in v1.2.20
func NewAes192GCMCryptor ¶ added in v1.2.20
func NewAes256CBCCryptor ¶ added in v1.2.20
func NewAes256GCMCryptor ¶ added in v1.2.20
func NewAesCBCCryptor ¶ added in v1.2.20
type Decryptor ¶ added in v1.0.23
type Decryptor interface {
DecryptString(string) (string, error)
DecryptBytes([]byte) ([]byte, error)
}
Decryptor concurrent safe decryptor
type Encryptor ¶ added in v1.0.23
type Encryptor interface {
EncryptString(string) (string, error)
EncryptBytes([]byte) ([]byte, error)
}
Encryptor concurrent safe encryptor
type Padder ¶ added in v1.0.23
type Padder int
Padder struct embeds attributes necessary for the padding calculation (e.g. block size). It implements the Padding interface.
type Padding ¶ added in v1.0.23
Padding interface defines functions Pad and Unpad implemented for PKCS #5 and PKCS #7 types of padding.
func NewPkcs5Padding ¶ added in v1.0.23
func NewPkcs5Padding() Padding
NewPkcs5Padding returns a PKCS5 padding type structure. The blocksize defaults to 8 bytes (64-bit). See https://tools.ietf.org/html/rfc2898 PKCS #5: Password-Based Cryptography. Specification Version 2.0
func NewPkcs7Padding ¶ added in v1.0.23
NewPkcs7Padding returns a PKCS7 padding type structure. The blocksize is passed as a parameter. See https://tools.ietf.org/html/rfc2315 PKCS #7: Cryptographic Message Syntax Version 1.5. For example the block size for AES is 16 bytes (128 bits).
type Token ¶
type Token struct {
// contains filtered or unexported fields
}
func ParseToken ¶
func RandomToken ¶ added in v1.0.27
func RandomToken() *Token
RandomToken create a random `randLenth` secret token.
func SecretToken ¶ added in v1.0.27
SecretToken create a token with secret.
type Tokener ¶
type Tokener struct {
// contains filtered or unexported fields
}
func (*Tokener) RandomToken ¶ added in v1.0.27
RandomToken create a random `randLenth` secret token.
func (*Tokener) SecretToken ¶ added in v1.0.27
SecretToken create a token with secret. If secret is empty, a random `randLenth` secret will be used.
Source Files