method

Documentation

Index

• Variables
• func NewCipherBlock(se gtp.SymmetricEncryption, key []byte) (block cipher.Block, err error)
• func NewHMAC(h gtp.Hash, key []byte) (hash.Hash, error)
• func NewNamedCurve(nc gtp.NamedCurve) (ecdh.Curve, error)
• type Cipher
  • func NewBlockCipherMode(bcm gtp.BlockCipherMode, block cipher.Block, iv []byte) (encryptor, decrypter Cipher, err error)
  • func NewCipher(se gtp.SymmetricEncryption, bcm gtp.BlockCipherMode, key, iv, nonce []byte) (encryptor, decrypter Cipher, err error)
• type CompressionStream
  • func NewCompressionStream(c gtp.Compression) (CompressionStream, error)
• type Padding
  • func NewPadding(pm gtp.PaddingMode) (Padding, error)
• type Signer
  • func NewSigner(ae gtp.AsymmetricEncryption, padding gtp.PaddingMode, hash gtp.Hash) (Signer, error)

Variables

var (
	GzipCompressionLevel    = gzip.DefaultCompression   // gzip压缩级别
	DeflateCompressionLevel = flate.DefaultCompression  // deflate压缩级别
	BrotliCompressionLevel  = brotli.DefaultCompression // brotli压缩级别
	LZ4CompressionLevel     = lz4.Level4                // lz4压缩级别
)

var (
	ErrInvalidMethod = errors.New("gtp: invalid method")
)

Functions

func NewCipherBlock

func NewCipherBlock(se gtp.SymmetricEncryption, key []byte) (block cipher.Block, err error)

NewCipherBlock 创建密码分组

func NewHMAC

func NewHMAC(h gtp.Hash, key []byte) (hash.Hash, error)

NewHMAC 创建HMAC

func NewNamedCurve

func NewNamedCurve(nc gtp.NamedCurve) (ecdh.Curve, error)

NewNamedCurve 创建曲线

Types

type Cipher

type Cipher interface {
	// Transforming 变换数据
	Transforming(dst, src, nonce []byte) (int, error)
	// BlockSize block大小
	BlockSize() int
	// NonceSize nonce大小
	NonceSize() int
	// Overhead overhead大小
	Overhead() int
	// Pad 是否需要填充
	Pad() bool
	// Unpad 是否需要解除填充
	Unpad() bool
	// InputSize 输入大小
	InputSize(size int) int
	// OutputSize 输出大小
	OutputSize(size int) int
}

Cipher 对称密码算法

func NewBlockCipherMode

func NewBlockCipherMode(bcm gtp.BlockCipherMode, block cipher.Block, iv []byte) (encryptor, decrypter Cipher, err error)

NewBlockCipherMode 创建分组密码模式

func NewCipher

func NewCipher(se gtp.SymmetricEncryption, bcm gtp.BlockCipherMode, key, iv, nonce []byte) (encryptor, decrypter Cipher, err error)

NewCipher 创建对称密码算法

type CompressionStream

type CompressionStream interface {
	// WrapReader 包装解压缩流
	WrapReader(r io.Reader) (io.Reader, error)
	// WrapWriter 包装压缩流
	WrapWriter(w io.Writer) (io.WriteCloser, error)
}

CompressionStream 压缩/解压缩流

func NewCompressionStream

func NewCompressionStream(c gtp.Compression) (CompressionStream, error)

NewCompressionStream 创建压缩/解压缩流

type Padding

type Padding interface {
	// Pad 填充
	Pad(buf []byte, ori int) error
	// Unpad 解除填充
	Unpad(padded []byte) ([]byte, error)
}

Padding 填充方案

func NewPadding

func NewPadding(pm gtp.PaddingMode) (Padding, error)

NewPadding 创建填充方案

type Signer

type Signer interface {
	// GenerateKey 生成私钥
	GenerateKey() (crypto.PrivateKey, error)
	// Sign 签名
	Sign(priv crypto.PrivateKey, data []byte) ([]byte, error)
	// Verify 验证签名
	Verify(pub crypto.PublicKey, data, sig []byte) error
}

Signer 签名器

func NewSigner

func NewSigner(ae gtp.AsymmetricEncryption, padding gtp.PaddingMode, hash gtp.Hash) (Signer, error)

NewSigner 创建签名器