tls

package module

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Versions in this module

v1

v1.1.0

Apr 28, 2022

v1.0.0

Jul 13, 2021

Changes in this version

+ type FakeCertCompressionAlgsExtension struct

+ Methods []CertCompressionAlgo

+ func (e *FakeCertCompressionAlgsExtension) Len() int

+ func (e *FakeCertCompressionAlgsExtension) Read(b []byte) (int, error)

v0

v0.0.18

Oct 2, 2022

Changes in this version

+ type ALPSExtension struct

+ SupportedProtocols []string

+ func (e *ALPSExtension) Len() int

+ func (e *ALPSExtension) Read(b []byte) (int, error)

type Config

+ ApplicationSettings map[string][]byte

type ConnectionState

+ PeerApplicationSettings []byte

v0.0.17

Sep 30, 2022

Changes in this version

+ var HelloChrome_98 = ClientHelloID

v0.0.16

May 17, 2022

Changes in this version

+ const FAKE_TLS_DHE_DSS_WITH_AES_128_CBC_SHA

+ const FAKE_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256

+ const FAKE_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256

+ const FAKE_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA

+ var HelloChrome_95 = ClientHelloID

+ var HelloEdge_85 = ClientHelloID

+ var HelloEdge_Auto = HelloEdge_85

+ var HelloExplorer_11 = ClientHelloID

+ var HelloSafari_13_1 = ClientHelloID

+ var HelloSafari_Auto = HelloSafari_13_1

+ type FakeALPSExtension struct

+ SupportedProtocols []string

+ func (e *FakeALPSExtension) Len() int

+ func (e *FakeALPSExtension) Read(b []byte) (int, error)

type FakeChannelIDExtension

+ OldExtensionID bool

type SignatureScheme

+ var FakeSHA1WithDSA SignatureScheme = 0x0202

+ var FakeSHA256WithDSA SignatureScheme = 0x0402

v0.0.16-1

May 19, 2022

v0.0.15

Oct 25, 2021

Changes in this version

+ const FAKE_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384

+ func DecryptTicketWith(encrypted []byte, tks TicketKeys) (plaintext []byte, usedOldKey bool)

+ type Fingerprinter struct

+ AllowBluntMimicry bool

+ AlwaysAddPadding bool

+ KeepPSK bool

+ func (f *Fingerprinter) FingerprintClientHello(data []byte) (*ClientHelloSpec, error)

+ type TicketKey struct

+ AesKey [16]byte

+ HmacKey [16]byte

+ KeyName [ticketKeyNameLen]byte

+ func TicketKeyFromBytes(b [32]byte) TicketKey

+ func (TK TicketKey) ToPrivate() ticketKey

+ type TicketKeys []TicketKey

+ func (TKS TicketKeys) ToPrivate() []ticketKey

v0.0.15-2

Oct 25, 2021

v0.0.15-1

Oct 25, 2021

v0.0.14

Apr 1, 2021

Changes in this version

type ClientHelloSpec

+ func UtlsIdToSpec(id ClientHelloID) (ClientHelloSpec, error)

v0.0.13

Aug 24, 2020

Changes in this version

+ const DISABLED_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384

+ const DISABLED_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384

+ const DISABLED_TLS_RSA_WITH_AES_256_CBC_SHA256

+ const FAKE_OLD_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256

+ const FAKE_TLS_DHE_RSA_WITH_AES_128_CBC_SHA

+ const FAKE_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256

+ const FAKE_TLS_DHE_RSA_WITH_AES_256_CBC_SHA

+ const FAKE_TLS_EMPTY_RENEGOTIATION_INFO_SCSV

+ const FAKE_TLS_RSA_WITH_RC4_128_MD5

+ const GREASE_PLACEHOLDER

+ const OLD_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256

+ const OLD_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256

+ const PRNGSeedLength

+ const PskModeDHE

+ const PskModePlain

+ const TLS_AES_128_GCM_SHA256

+ const TLS_AES_256_GCM_SHA384

+ const TLS_CHACHA20_POLY1305_SHA256

+ const TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA

+ const TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256

+ const TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256

+ const TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA

+ const TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384

+ const TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305

+ const TLS_ECDHE_ECDSA_WITH_RC4_128_SHA

+ const TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA

+ const TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA

+ const TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256

+ const TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

+ const TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA

+ const TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384

+ const TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305

+ const TLS_ECDHE_RSA_WITH_RC4_128_SHA

+ const TLS_FALLBACK_SCSV

+ const TLS_RSA_WITH_3DES_EDE_CBC_SHA

+ const TLS_RSA_WITH_AES_128_CBC_SHA

+ const TLS_RSA_WITH_AES_128_CBC_SHA256

+ const TLS_RSA_WITH_AES_128_GCM_SHA256

+ const TLS_RSA_WITH_AES_256_CBC_SHA

+ const TLS_RSA_WITH_AES_256_GCM_SHA384

+ const TLS_RSA_WITH_RC4_128_SHA

+ const VersionSSL30

+ const VersionTLS10

+ const VersionTLS11

+ const VersionTLS12

+ const VersionTLS13

+ var FakeFFDHE2048 = uint16(0x0100)

+ var FakeFFDHE3072 = uint16(0x0101)

+ var HelloChrome_58 = ClientHelloID

+ var HelloChrome_62 = ClientHelloID

+ var HelloChrome_70 = ClientHelloID

+ var HelloChrome_72 = ClientHelloID

+ var HelloChrome_83 = ClientHelloID

+ var HelloChrome_Auto = HelloChrome_83

+ var HelloCustom = ClientHelloID

+ var HelloFirefox_55 = ClientHelloID

+ var HelloFirefox_56 = ClientHelloID

+ var HelloFirefox_63 = ClientHelloID

+ var HelloFirefox_65 = ClientHelloID

+ var HelloFirefox_Auto = HelloFirefox_65

+ var HelloGolang = ClientHelloID

+ var HelloIOS_11_1 = ClientHelloID

+ var HelloIOS_12_1 = ClientHelloID

+ var HelloIOS_Auto = HelloIOS_12_1

+ var HelloRandomized = ClientHelloID

+ var HelloRandomizedALPN = ClientHelloID

+ var HelloRandomizedNoALPN = ClientHelloID

+ func BoringPaddingStyle(unpaddedLen int) (int, bool)

+ func EnableWeakCiphers()

+ func GetBoringGREASEValue(greaseSeed [ssl_grease_last_index]uint16, index int) uint16

+ func Listen(network, laddr string, config *Config) (net.Listener, error)

+ func NewListener(inner net.Listener, config *Config) net.Listener

+ type ALPNExtension struct

+ AlpnProtocols []string

+ func (e *ALPNExtension) Len() int

+ func (e *ALPNExtension) Read(b []byte) (int, error)

+ type CertCompressionAlgo uint16

+ const CertCompressionBrotli

+ const CertCompressionZlib

+ type Certificate struct

+ Certificate [][]byte

+ Leaf *x509.Certificate

+ OCSPStaple []byte

+ PrivateKey crypto.PrivateKey

+ SignedCertificateTimestamps [][]byte

+ func LoadX509KeyPair(certFile, keyFile string) (Certificate, error)

+ func X509KeyPair(certPEMBlock, keyPEMBlock []byte) (Certificate, error)

+ type CertificateRequestInfo struct

+ AcceptableCAs [][]byte

+ SignatureSchemes []SignatureScheme

+ type CertificateRequestMsgTLS13 struct

+ CertificateAuthorities [][]byte

+ OcspStapling bool

+ Raw []byte

+ Scts bool

+ SupportedSignatureAlgorithms []SignatureScheme

+ SupportedSignatureAlgorithmsCert []SignatureScheme

+ type CipherSuite struct

+ Aead func(key, fixedNonce []byte) aead

+ Cipher func(key, iv []byte, isRead bool) interface{}

+ Flags int

+ Id uint16

+ IvLen int

+ Ka func(version uint16) keyAgreement

+ KeyLen int

+ Mac func(version uint16, macKey []byte) macFunction

+ MacLen int

+ type CipherSuiteTLS13 struct

+ Aead func(key, fixedNonce []byte) aead

+ Hash crypto.Hash

+ Id uint16

+ KeyLen int

+ type ClientAuthType int

+ const NoClientCert

+ const RequestClientCert

+ const RequireAndVerifyClientCert

+ const RequireAnyClientCert

+ const VerifyClientCertIfGiven

+ type ClientHandshakeState struct

+ C *Conn

+ Hello *ClientHelloMsg

+ MasterSecret []byte

+ ServerHello *ServerHelloMsg

+ Session *ClientSessionState

+ State12 TLS12OnlyState

+ State13 TLS13OnlyState

+ type ClientHelloID struct

+ Client string

+ Seed *PRNGSeed

+ Version string

+ func (p *ClientHelloID) IsSet() bool

+ func (p *ClientHelloID) Str() string

+ type ClientHelloInfo struct

+ CipherSuites []uint16

+ Conn net.Conn

+ ServerName string

+ SignatureSchemes []SignatureScheme

+ SupportedCurves []CurveID

+ SupportedPoints []uint8

+ SupportedProtos []string

+ SupportedVersions []uint16

+ type ClientHelloMsg struct

+ AlpnProtocols []string

+ CipherSuites []uint16

+ CompressionMethods []uint8

+ Cookie []byte

+ EarlyData bool

+ Ems bool

+ KeyShares []KeyShare

+ NextProtoNeg bool

+ OcspStapling bool

+ PskBinders [][]byte

+ PskIdentities []pskIdentity

+ PskModes []uint8

+ Random []byte

+ Raw []byte

+ Scts bool

+ SecureRenegotiation []byte

+ SecureRenegotiationSupported bool

+ ServerName string

+ SessionId []byte

+ SessionTicket []uint8

+ SupportedCurves []CurveID

+ SupportedPoints []uint8

+ SupportedSignatureAlgorithms []SignatureScheme

+ SupportedSignatureAlgorithmsCert []SignatureScheme

+ SupportedVersions []uint16

+ TicketSupported bool

+ Vers uint16

+ func UnmarshalClientHello(data []byte) *ClientHelloMsg

+ type ClientHelloSpec struct

+ CipherSuites []uint16

+ CompressionMethods []uint8

+ Extensions []TLSExtension

+ GetSessionID func(ticket []byte) [32]byte

+ TLSVersMax uint16

+ TLSVersMin uint16

+ type ClientSessionCache interface

+ Get func(sessionKey string) (session *ClientSessionState, ok bool)

+ Put func(sessionKey string, cs *ClientSessionState)

+ func NewLRUClientSessionCache(capacity int) ClientSessionCache

+ type ClientSessionState struct

+ func MakeClientSessionState(SessionTicket []uint8, Vers uint16, CipherSuite uint16, MasterSecret []byte, ...) *ClientSessionState

+ func (css *ClientSessionState) CipherSuite() uint16

+ func (css *ClientSessionState) MasterSecret() []byte

+ func (css *ClientSessionState) ServerCertificates() []*x509.Certificate

+ func (css *ClientSessionState) SessionTicket() []uint8

+ func (css *ClientSessionState) SetCipherSuite(CipherSuite uint16)

+ func (css *ClientSessionState) SetMasterSecret(MasterSecret []byte)

+ func (css *ClientSessionState) SetServerCertificates(ServerCertificates []*x509.Certificate)

+ func (css *ClientSessionState) SetSessionTicket(SessionTicket []uint8)

+ func (css *ClientSessionState) SetVerifiedChains(VerifiedChains [][]*x509.Certificate)

+ func (css *ClientSessionState) SetVers(Vers uint16)

+ func (css *ClientSessionState) VerifiedChains() [][]*x509.Certificate

+ func (css *ClientSessionState) Vers() uint16

+ type CompressCertificateExtension struct

+ Algorithms []CertCompressionAlgo

+ func (e *CompressCertificateExtension) Len() int

+ func (e *CompressCertificateExtension) Read(b []byte) (int, error)

+ type Config struct

+ Certificates []Certificate

+ CipherSuites []uint16

+ ClientAuth ClientAuthType

+ ClientCAs *x509.CertPool

+ ClientSessionCache ClientSessionCache

+ CurvePreferences []CurveID

+ DynamicRecordSizingDisabled bool

+ GetCertificate func(*ClientHelloInfo) (*Certificate, error)

+ GetClientCertificate func(*CertificateRequestInfo) (*Certificate, error)

+ GetConfigForClient func(*ClientHelloInfo) (*Config, error)

+ InsecureSkipVerify bool

+ KeyLogWriter io.Writer

+ MaxVersion uint16

+ MinVersion uint16

+ NameToCertificate map[string]*Certificate

+ NextProtos []string

+ PreferServerCipherSuites bool

+ Rand io.Reader

+ Renegotiation RenegotiationSupport

+ RootCAs *x509.CertPool

+ ServerName string

+ SessionTicketKey [32]byte

+ SessionTicketsDisabled bool

+ Time func() time.Time

+ VerifyPeerCertificate func(rawCerts [][]byte, verifiedChains [][]*x509.Certificate) error

+ func (c *Config) BuildNameToCertificate()

+ func (c *Config) Clone() *Config

+ func (c *Config) SetSessionTicketKeys(keys [][32]byte)

+ type Conn struct

+ func Client(conn net.Conn, config *Config) *Conn

+ func Dial(network, addr string, config *Config) (*Conn, error)

+ func DialWithDialer(dialer *net.Dialer, network, addr string, config *Config) (*Conn, error)

+ func MakeConnWithCompleteHandshake(tcpConn net.Conn, version uint16, cipherSuite uint16, masterSecret []byte, ...) *Conn

+ func Server(conn net.Conn, config *Config) *Conn

+ func (c *Conn) Close() error

+ func (c *Conn) CloseWrite() error

+ func (c *Conn) ConnectionState() ConnectionState

+ func (c *Conn) Handshake() error

+ func (c *Conn) LocalAddr() net.Addr

+ func (c *Conn) OCSPResponse() []byte

+ func (c *Conn) Read(b []byte) (int, error)

+ func (c *Conn) RemoteAddr() net.Addr

+ func (c *Conn) SetDeadline(t time.Time) error

+ func (c *Conn) SetReadDeadline(t time.Time) error

+ func (c *Conn) SetWriteDeadline(t time.Time) error

+ func (c *Conn) VerifyHostname(host string) error

+ func (c *Conn) Write(b []byte) (int, error)

+ type ConnectionState struct

+ CipherSuite uint16

+ DidResume bool

+ HandshakeComplete bool

+ NegotiatedProtocol string

+ NegotiatedProtocolIsMutual bool

+ OCSPResponse []byte

+ PeerCertificates []*x509.Certificate

+ ServerName string

+ SignedCertificateTimestamps [][]byte

+ TLSUnique []byte

+ VerifiedChains [][]*x509.Certificate

+ Version uint16

+ func (cs *ConnectionState) ExportKeyingMaterial(label string, context []byte, length int) ([]byte, error)

+ type CookieExtension struct

+ Cookie []byte

+ func (e *CookieExtension) Len() int

+ func (e *CookieExtension) Read(b []byte) (int, error)

+ type CurveID uint16

+ const CurveP256

+ const CurveP384

+ const CurveP521

+ const X25519

+ type EcdheParameters interface

+ type FakeChannelIDExtension struct

+ func (e *FakeChannelIDExtension) Len() int

+ func (e *FakeChannelIDExtension) Read(b []byte) (int, error)

+ type FakeRecordSizeLimitExtension struct

+ Limit uint16

+ func (e *FakeRecordSizeLimitExtension) Len() int

+ func (e *FakeRecordSizeLimitExtension) Read(b []byte) (int, error)

+ type FinishedHash struct

+ Buffer []byte

+ Client hash.Hash

+ ClientMD5 hash.Hash

+ Prf func(result, secret, label, seed []byte)

+ Server hash.Hash

+ ServerMD5 hash.Hash

+ Version uint16

+ type GenericExtension struct

+ Data []byte

+ Id uint16

+ func (e *GenericExtension) Len() int

+ func (e *GenericExtension) Read(b []byte) (int, error)

+ type KeyShare struct

+ Data []byte

+ Group CurveID

+ type KeyShareExtension struct

+ KeyShares []KeyShare

+ func (e *KeyShareExtension) Len() int

+ func (e *KeyShareExtension) Read(b []byte) (int, error)

+ type KeyShares []KeyShare

+ func (KSS KeyShares) ToPrivate() []keyShare

+ type NPNExtension struct

+ NextProtos []string

+ func (e *NPNExtension) Len() int

+ func (e *NPNExtension) Read(b []byte) (int, error)

+ type PRNGSeed [PRNGSeedLength]byte

+ func NewPRNGSeed() (*PRNGSeed, error)

+ type PSKKeyExchangeModesExtension struct

+ Modes []uint8

+ func (e *PSKKeyExchangeModesExtension) Len() int

+ func (e *PSKKeyExchangeModesExtension) Read(b []byte) (int, error)

+ type RecordHeaderError struct

+ Conn net.Conn

+ Msg string

+ RecordHeader [5]byte

+ func (e RecordHeaderError) Error() string

+ type RenegotiationInfoExtension struct

+ Renegotiation RenegotiationSupport

+ func (e *RenegotiationInfoExtension) Len() int

+ func (e *RenegotiationInfoExtension) Read(b []byte) (int, error)

+ type RenegotiationSupport int

+ const RenegotiateFreelyAsClient

+ const RenegotiateNever

+ const RenegotiateOnceAsClient

+ type Roller struct

+ HelloIDMu sync.Mutex

+ HelloIDs []ClientHelloID

+ TcpDialTimeout time.Duration

+ TlsHandshakeTimeout time.Duration

+ WorkingHelloID *ClientHelloID

+ func NewRoller() (*Roller, error)

+ func (c *Roller) Dial(network, addr, serverName string) (*UConn, error)

+ type SCTExtension struct

+ func (e *SCTExtension) Len() int

+ func (e *SCTExtension) Read(b []byte) (int, error)

+ type SNIExtension struct

+ ServerName string

+ func (e *SNIExtension) Len() int

+ func (e *SNIExtension) Read(b []byte) (int, error)

+ type ServerHelloMsg struct

+ AlpnProtocol string

+ CipherSuite uint16

+ CompressionMethod uint8

+ Cookie []byte

+ Ems bool

+ NextProtoNeg bool

+ NextProtos []string

+ OcspStapling bool

+ Random []byte

+ Raw []byte

+ Scts [][]byte

+ SecureRenegotiation []byte

+ SecureRenegotiationSupported bool

+ SelectedGroup CurveID

+ SelectedIdentity uint16

+ SelectedIdentityPresent bool

+ ServerShare keyShare

+ SessionId []byte

+ SupportedVersion uint16

+ TicketSupported bool

+ Vers uint16

+ type SessionTicketExtension struct

+ Session *ClientSessionState

+ func (e *SessionTicketExtension) Len() int

+ func (e *SessionTicketExtension) Read(b []byte) (int, error)

+ type SignatureAlgorithmsExtension struct

+ SupportedSignatureAlgorithms []SignatureScheme

+ func (e *SignatureAlgorithmsExtension) Len() int

+ func (e *SignatureAlgorithmsExtension) Read(b []byte) (int, error)

+ type SignatureScheme uint16

+ const ECDSAWithP256AndSHA256

+ const ECDSAWithP384AndSHA384

+ const ECDSAWithP521AndSHA512

+ const ECDSAWithSHA1

+ const PKCS1WithSHA1

+ const PKCS1WithSHA256

+ const PKCS1WithSHA384

+ const PKCS1WithSHA512

+ const PSSWithSHA256

+ const PSSWithSHA384

+ const PSSWithSHA512

+ var FakeECDSAWithSHA224 SignatureScheme = 0x0303

+ var FakePKCS1WithSHA224 SignatureScheme = 0x0301

+ type StatusRequestExtension struct

+ func (e *StatusRequestExtension) Len() int

+ func (e *StatusRequestExtension) Read(b []byte) (int, error)

+ type SupportedCurvesExtension struct

+ Curves []CurveID

+ func (e *SupportedCurvesExtension) Len() int

+ func (e *SupportedCurvesExtension) Read(b []byte) (int, error)

+ type SupportedPointsExtension struct

+ SupportedPoints []uint8

+ func (e *SupportedPointsExtension) Len() int

+ func (e *SupportedPointsExtension) Read(b []byte) (int, error)

+ type SupportedVersionsExtension struct

+ Versions []uint16

+ func (e *SupportedVersionsExtension) Len() int

+ func (e *SupportedVersionsExtension) Read(b []byte) (int, error)

+ type TLS12OnlyState struct

+ FinishedHash FinishedHash

+ Suite CipherSuite

+ type TLS13OnlyState struct

+ BinderKey []byte

+ CertCompAlgs []CertCompressionAlgo

+ CertReq *CertificateRequestMsgTLS13

+ EarlySecret []byte

+ EcdheParams EcdheParameters

+ SentDummyCCS bool

+ Suite *CipherSuiteTLS13

+ TrafficSecret []byte

+ Transcript hash.Hash

+ UsingPSK bool

+ type TLSExtension interface

+ Len func() int

+ Read func(p []byte) (n int, err error)

+ type UConn struct

+ ClientHelloBuilt bool

+ ClientHelloID ClientHelloID

+ Extensions []TLSExtension

+ GetSessionID func(ticket []byte) [32]byte

+ HandshakeState ClientHandshakeState

+ func UClient(conn net.Conn, config *Config, clientHelloID ClientHelloID) *UConn

+ func (c *UConn) Handshake() error

+ func (c *UConn) Write(b []byte) (int, error)

+ func (uconn *UConn) ApplyConfig() error

+ func (uconn *UConn) ApplyPreset(p *ClientHelloSpec) error

+ func (uconn *UConn) BuildHandshakeState() error

+ func (uconn *UConn) GetOutKeystream(length int) ([]byte, error)

+ func (uconn *UConn) GetUnderlyingConn() net.Conn

+ func (uconn *UConn) MarshalClientHello() error

+ func (uconn *UConn) RemoveSNIExtension() error

+ func (uconn *UConn) SetClientRandom(r []byte) error

+ func (uconn *UConn) SetSNI(sni string)

+ func (uconn *UConn) SetSessionCache(cache ClientSessionCache)

+ func (uconn *UConn) SetSessionState(session *ClientSessionState) error

+ func (uconn *UConn) SetTLSVers(minTLSVers, maxTLSVers uint16, specExtensions []TLSExtension) error

+ func (uconn *UConn) SetUnderlyingConn(c net.Conn)

+ type UtlsExtendedMasterSecretExtension struct

+ func (e *UtlsExtendedMasterSecretExtension) Len() int

+ func (e *UtlsExtendedMasterSecretExtension) Read(b []byte) (int, error)

+ type UtlsGREASEExtension struct

+ Body []byte

+ Value uint16

+ func (e *UtlsGREASEExtension) Len() int

+ func (e *UtlsGREASEExtension) Read(b []byte) (int, error)

+ type UtlsPaddingExtension struct

+ GetPaddingLen func(clientHelloUnpaddedLen int) (paddingLen int, willPad bool)

+ PaddingLen int

+ WillPad bool

+ func (e *UtlsPaddingExtension) Len() int

+ func (e *UtlsPaddingExtension) Read(b []byte) (int, error)

+ func (e *UtlsPaddingExtension) Update(clientHelloUnpaddedLen int)

v0.0.12-2

May 15, 2020

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