472 lines
16 KiB
Go
472 lines
16 KiB
Go
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// Copyright 2010 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package runner
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import (
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"crypto"
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"crypto/aes"
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"crypto/cipher"
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"crypto/des"
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"crypto/hmac"
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"crypto/md5"
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"crypto/sha1"
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"crypto/sha256"
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"crypto/sha512"
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"crypto/x509"
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"hash"
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)
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// a keyAgreement implements the client and server side of a TLS key agreement
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// protocol by generating and processing key exchange messages.
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type keyAgreement interface {
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// On the server side, the first two methods are called in order.
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// In the case that the key agreement protocol doesn't use a
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// ServerKeyExchange message, generateServerKeyExchange can return nil,
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// nil.
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generateServerKeyExchange(*Config, *Certificate, *clientHelloMsg, *serverHelloMsg, uint16) (*serverKeyExchangeMsg, error)
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processClientKeyExchange(*Config, *Certificate, *clientKeyExchangeMsg, uint16) ([]byte, error)
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// On the client side, the next two methods are called in order.
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// This method may not be called if the server doesn't send a
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// ServerKeyExchange message.
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processServerKeyExchange(*Config, *clientHelloMsg, *serverHelloMsg, crypto.PublicKey, *serverKeyExchangeMsg) error
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generateClientKeyExchange(*Config, *clientHelloMsg, *x509.Certificate) ([]byte, *clientKeyExchangeMsg, error)
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// peerSignatureAlgorithm returns the signature algorithm used by the
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// peer, or zero if not applicable.
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peerSignatureAlgorithm() signatureAlgorithm
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}
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const (
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// suiteECDH indicates that the cipher suite involves elliptic curve
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// Diffie-Hellman. This means that it should only be selected when the
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// client indicates that it supports ECC with a curve and point format
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// that we're happy with.
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suiteECDHE = 1 << iota
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// suiteECDSA indicates that the cipher suite involves an ECDSA
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// signature and therefore may only be selected when the server's
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// certificate is ECDSA. If this is not set then the cipher suite is
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// RSA based.
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suiteECDSA
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// suiteTLS12 indicates that the cipher suite should only be advertised
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// and accepted when using TLS 1.2 or greater.
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suiteTLS12
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// suiteTLS13 indicates that the cipher suite can be used with TLS 1.3.
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// Cipher suites lacking this flag may not be used with TLS 1.3.
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suiteTLS13
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// suiteSHA384 indicates that the cipher suite uses SHA384 as the
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// handshake hash.
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suiteSHA384
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// suitePSK indicates that the cipher suite authenticates with
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// a pre-shared key rather than a server private key.
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suitePSK
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)
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type tlsAead struct {
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cipher.AEAD
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explicitNonce bool
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}
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// A cipherSuite is a specific combination of key agreement, cipher and MAC
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// function. All cipher suites currently assume RSA key agreement.
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type cipherSuite struct {
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id uint16
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// the lengths, in bytes, of the key material needed for each component.
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keyLen int
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macLen int
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ivLen func(version uint16) int
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ka func(version uint16) keyAgreement
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// flags is a bitmask of the suite* values, above.
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flags int
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cipher func(key, iv []byte, isRead bool) interface{}
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mac func(version uint16, macKey []byte) macFunction
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aead func(version uint16, key, fixedNonce []byte) *tlsAead
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}
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func (cs cipherSuite) hash() crypto.Hash {
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if cs.flags&suiteSHA384 != 0 {
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return crypto.SHA384
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}
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return crypto.SHA256
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}
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var cipherSuites = []*cipherSuite{
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{TLS_CHACHA20_POLY1305_SHA256, 32, 0, ivLenChaCha20Poly1305, nil, suiteTLS13, nil, nil, aeadCHACHA20POLY1305},
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{TLS_AES_128_GCM_SHA256, 16, 0, ivLenAESGCM, nil, suiteTLS13, nil, nil, aeadAESGCM},
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{TLS_AES_256_GCM_SHA384, 32, 0, ivLenAESGCM, nil, suiteTLS13 | suiteSHA384, nil, nil, aeadAESGCM},
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{TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, 32, 0, ivLenChaCha20Poly1305, ecdheECDSAKA, suiteECDHE | suiteECDSA | suiteTLS12, nil, nil, aeadCHACHA20POLY1305},
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{TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256, 32, 0, ivLenChaCha20Poly1305, ecdheRSAKA, suiteECDHE | suiteTLS12, nil, nil, aeadCHACHA20POLY1305},
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{TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, 16, 0, ivLenAESGCM, ecdheRSAKA, suiteECDHE | suiteTLS12, nil, nil, aeadAESGCM},
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{TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, 16, 0, ivLenAESGCM, ecdheECDSAKA, suiteECDHE | suiteECDSA | suiteTLS12, nil, nil, aeadAESGCM},
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{TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, 32, 0, ivLenAESGCM, ecdheRSAKA, suiteECDHE | suiteTLS12 | suiteSHA384, nil, nil, aeadAESGCM},
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{TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, 32, 0, ivLenAESGCM, ecdheECDSAKA, suiteECDHE | suiteECDSA | suiteTLS12 | suiteSHA384, nil, nil, aeadAESGCM},
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{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, 16, 32, ivLenAES, ecdheRSAKA, suiteECDHE | suiteTLS12, cipherAES, macSHA256, nil},
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{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, 16, 32, ivLenAES, ecdheECDSAKA, suiteECDHE | suiteECDSA | suiteTLS12, cipherAES, macSHA256, nil},
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{TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, 16, 20, ivLenAES, ecdheRSAKA, suiteECDHE, cipherAES, macSHA1, nil},
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{TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, 16, 20, ivLenAES, ecdheECDSAKA, suiteECDHE | suiteECDSA, cipherAES, macSHA1, nil},
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{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, 32, 48, ivLenAES, ecdheRSAKA, suiteECDHE | suiteTLS12 | suiteSHA384, cipherAES, macSHA384, nil},
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{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, 32, 48, ivLenAES, ecdheECDSAKA, suiteECDHE | suiteECDSA | suiteTLS12 | suiteSHA384, cipherAES, macSHA384, nil},
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{TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, 32, 20, ivLenAES, ecdheRSAKA, suiteECDHE, cipherAES, macSHA1, nil},
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{TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, 32, 20, ivLenAES, ecdheECDSAKA, suiteECDHE | suiteECDSA, cipherAES, macSHA1, nil},
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{TLS_RSA_WITH_AES_128_GCM_SHA256, 16, 0, ivLenAESGCM, rsaKA, suiteTLS12, nil, nil, aeadAESGCM},
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{TLS_RSA_WITH_AES_256_GCM_SHA384, 32, 0, ivLenAESGCM, rsaKA, suiteTLS12 | suiteSHA384, nil, nil, aeadAESGCM},
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{TLS_RSA_WITH_AES_128_CBC_SHA256, 16, 32, ivLenAES, rsaKA, suiteTLS12, cipherAES, macSHA256, nil},
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{TLS_RSA_WITH_AES_256_CBC_SHA256, 32, 32, ivLenAES, rsaKA, suiteTLS12, cipherAES, macSHA256, nil},
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{TLS_RSA_WITH_AES_128_CBC_SHA, 16, 20, ivLenAES, rsaKA, 0, cipherAES, macSHA1, nil},
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{TLS_RSA_WITH_AES_256_CBC_SHA, 32, 20, ivLenAES, rsaKA, 0, cipherAES, macSHA1, nil},
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{TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, 24, 20, ivLen3DES, ecdheRSAKA, suiteECDHE, cipher3DES, macSHA1, nil},
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{TLS_RSA_WITH_3DES_EDE_CBC_SHA, 24, 20, ivLen3DES, rsaKA, 0, cipher3DES, macSHA1, nil},
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{TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256, 32, 0, ivLenChaCha20Poly1305, ecdhePSKKA, suiteECDHE | suitePSK | suiteTLS12, nil, nil, aeadCHACHA20POLY1305},
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{TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, 16, 20, ivLenAES, ecdhePSKKA, suiteECDHE | suitePSK, cipherAES, macSHA1, nil},
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{TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA, 32, 20, ivLenAES, ecdhePSKKA, suiteECDHE | suitePSK, cipherAES, macSHA1, nil},
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{TLS_PSK_WITH_AES_128_CBC_SHA, 16, 20, ivLenAES, pskKA, suitePSK, cipherAES, macSHA1, nil},
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{TLS_PSK_WITH_AES_256_CBC_SHA, 32, 20, ivLenAES, pskKA, suitePSK, cipherAES, macSHA1, nil},
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{TLS_RSA_WITH_NULL_SHA, 0, 20, noIV, rsaKA, 0, cipherNull, macSHA1, nil},
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}
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func noIV(vers uint16) int {
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return 0
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}
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func ivLenChaCha20Poly1305(vers uint16) int {
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return 12
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}
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func ivLenAESGCM(vers uint16) int {
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if vers >= VersionTLS13 {
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return 12
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}
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return 4
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}
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func ivLenAES(vers uint16) int {
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return 16
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}
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func ivLen3DES(vers uint16) int {
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return 8
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}
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type nullCipher struct{}
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func cipherNull(key, iv []byte, isRead bool) interface{} {
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return nullCipher{}
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}
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func cipher3DES(key, iv []byte, isRead bool) interface{} {
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block, _ := des.NewTripleDESCipher(key)
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if isRead {
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return cipher.NewCBCDecrypter(block, iv)
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}
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return cipher.NewCBCEncrypter(block, iv)
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}
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func cipherAES(key, iv []byte, isRead bool) interface{} {
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block, _ := aes.NewCipher(key)
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if isRead {
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return cipher.NewCBCDecrypter(block, iv)
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}
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return cipher.NewCBCEncrypter(block, iv)
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}
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// macSHA1 returns a macFunction for the given protocol version.
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func macSHA1(version uint16, key []byte) macFunction {
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if version == VersionSSL30 {
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mac := ssl30MAC{
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h: sha1.New(),
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key: make([]byte, len(key)),
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}
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copy(mac.key, key)
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return mac
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}
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return tls10MAC{hmac.New(sha1.New, key)}
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}
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func macMD5(version uint16, key []byte) macFunction {
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if version == VersionSSL30 {
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mac := ssl30MAC{
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h: md5.New(),
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key: make([]byte, len(key)),
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}
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copy(mac.key, key)
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return mac
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}
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return tls10MAC{hmac.New(md5.New, key)}
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}
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func macSHA256(version uint16, key []byte) macFunction {
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if version == VersionSSL30 {
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mac := ssl30MAC{
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h: sha256.New(),
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key: make([]byte, len(key)),
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}
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copy(mac.key, key)
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return mac
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}
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return tls10MAC{hmac.New(sha256.New, key)}
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}
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func macSHA384(version uint16, key []byte) macFunction {
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if version == VersionSSL30 {
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mac := ssl30MAC{
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h: sha512.New384(),
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key: make([]byte, len(key)),
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}
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copy(mac.key, key)
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return mac
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}
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return tls10MAC{hmac.New(sha512.New384, key)}
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}
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type macFunction interface {
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Size() int
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MAC(digestBuf, seq, header, length, data []byte) []byte
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}
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// fixedNonceAEAD wraps an AEAD and prefixes a fixed portion of the nonce to
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// each call.
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type fixedNonceAEAD struct {
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// sealNonce and openNonce are buffers where the larger nonce will be
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// constructed. Since a seal and open operation may be running
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// concurrently, there is a separate buffer for each.
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sealNonce, openNonce []byte
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aead cipher.AEAD
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}
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func (f *fixedNonceAEAD) NonceSize() int { return 8 }
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func (f *fixedNonceAEAD) Overhead() int { return f.aead.Overhead() }
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func (f *fixedNonceAEAD) Seal(out, nonce, plaintext, additionalData []byte) []byte {
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copy(f.sealNonce[len(f.sealNonce)-8:], nonce)
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return f.aead.Seal(out, f.sealNonce, plaintext, additionalData)
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}
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func (f *fixedNonceAEAD) Open(out, nonce, plaintext, additionalData []byte) ([]byte, error) {
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copy(f.openNonce[len(f.openNonce)-8:], nonce)
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return f.aead.Open(out, f.openNonce, plaintext, additionalData)
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}
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func aeadAESGCM(version uint16, key, fixedNonce []byte) *tlsAead {
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aes, err := aes.NewCipher(key)
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if err != nil {
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panic(err)
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}
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aead, err := cipher.NewGCM(aes)
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if err != nil {
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panic(err)
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}
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nonce1, nonce2 := make([]byte, 12), make([]byte, 12)
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copy(nonce1, fixedNonce)
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copy(nonce2, fixedNonce)
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if version >= VersionTLS13 {
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return &tlsAead{&xorNonceAEAD{nonce1, nonce2, aead}, false}
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}
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return &tlsAead{&fixedNonceAEAD{nonce1, nonce2, aead}, true}
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}
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func xorSlice(out, in []byte) {
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for i := range out {
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out[i] ^= in[i]
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}
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}
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// xorNonceAEAD wraps an AEAD and XORs a fixed portion of the nonce, left-padded
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// if necessary, each call.
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type xorNonceAEAD struct {
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// sealNonce and openNonce are buffers where the larger nonce will be
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// constructed. Since a seal and open operation may be running
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// concurrently, there is a separate buffer for each.
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sealNonce, openNonce []byte
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aead cipher.AEAD
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}
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func (x *xorNonceAEAD) NonceSize() int { return 8 }
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func (x *xorNonceAEAD) Overhead() int { return x.aead.Overhead() }
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func (x *xorNonceAEAD) Seal(out, nonce, plaintext, additionalData []byte) []byte {
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xorSlice(x.sealNonce[len(x.sealNonce)-len(nonce):], nonce)
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ret := x.aead.Seal(out, x.sealNonce, plaintext, additionalData)
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xorSlice(x.sealNonce[len(x.sealNonce)-len(nonce):], nonce)
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return ret
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}
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func (x *xorNonceAEAD) Open(out, nonce, plaintext, additionalData []byte) ([]byte, error) {
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xorSlice(x.openNonce[len(x.openNonce)-len(nonce):], nonce)
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ret, err := x.aead.Open(out, x.openNonce, plaintext, additionalData)
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xorSlice(x.openNonce[len(x.openNonce)-len(nonce):], nonce)
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return ret, err
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}
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func aeadCHACHA20POLY1305(version uint16, key, fixedNonce []byte) *tlsAead {
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aead, err := newChaCha20Poly1305(key)
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if err != nil {
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panic(err)
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}
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|
nonce1, nonce2 := make([]byte, len(fixedNonce)), make([]byte, len(fixedNonce))
|
||
|
|
copy(nonce1, fixedNonce)
|
||
|
|
copy(nonce2, fixedNonce)
|
||
|
|
|
||
|
|
return &tlsAead{&xorNonceAEAD{nonce1, nonce2, aead}, false}
|
||
|
|
}
|
||
|
|
|
||
|
|
// ssl30MAC implements the SSLv3 MAC function, as defined in
|
||
|
|
// www.mozilla.org/projects/security/pki/nss/ssl/draft302.txt section 5.2.3.1
|
||
|
|
type ssl30MAC struct {
|
||
|
|
h hash.Hash
|
||
|
|
key []byte
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s ssl30MAC) Size() int {
|
||
|
|
return s.h.Size()
|
||
|
|
}
|
||
|
|
|
||
|
|
var ssl30Pad1 = [48]byte{0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36}
|
||
|
|
|
||
|
|
var ssl30Pad2 = [48]byte{0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c, 0x5c}
|
||
|
|
|
||
|
|
func (s ssl30MAC) MAC(digestBuf, seq, header, length, data []byte) []byte {
|
||
|
|
padLength := 48
|
||
|
|
if s.h.Size() == 20 {
|
||
|
|
padLength = 40
|
||
|
|
}
|
||
|
|
|
||
|
|
s.h.Reset()
|
||
|
|
s.h.Write(s.key)
|
||
|
|
s.h.Write(ssl30Pad1[:padLength])
|
||
|
|
s.h.Write(seq)
|
||
|
|
s.h.Write(header[:1])
|
||
|
|
s.h.Write(length)
|
||
|
|
s.h.Write(data)
|
||
|
|
digestBuf = s.h.Sum(digestBuf[:0])
|
||
|
|
|
||
|
|
s.h.Reset()
|
||
|
|
s.h.Write(s.key)
|
||
|
|
s.h.Write(ssl30Pad2[:padLength])
|
||
|
|
s.h.Write(digestBuf)
|
||
|
|
return s.h.Sum(digestBuf[:0])
|
||
|
|
}
|
||
|
|
|
||
|
|
// tls10MAC implements the TLS 1.0 MAC function. RFC 2246, section 6.2.3.
|
||
|
|
type tls10MAC struct {
|
||
|
|
h hash.Hash
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s tls10MAC) Size() int {
|
||
|
|
return s.h.Size()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (s tls10MAC) MAC(digestBuf, seq, header, length, data []byte) []byte {
|
||
|
|
s.h.Reset()
|
||
|
|
s.h.Write(seq)
|
||
|
|
s.h.Write(header)
|
||
|
|
s.h.Write(length)
|
||
|
|
s.h.Write(data)
|
||
|
|
return s.h.Sum(digestBuf[:0])
|
||
|
|
}
|
||
|
|
|
||
|
|
func rsaKA(version uint16) keyAgreement {
|
||
|
|
return &rsaKeyAgreement{version: version}
|
||
|
|
}
|
||
|
|
|
||
|
|
func ecdheECDSAKA(version uint16) keyAgreement {
|
||
|
|
return &ecdheKeyAgreement{
|
||
|
|
auth: &signedKeyAgreement{
|
||
|
|
keyType: keyTypeECDSA,
|
||
|
|
version: version,
|
||
|
|
},
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func ecdheRSAKA(version uint16) keyAgreement {
|
||
|
|
return &ecdheKeyAgreement{
|
||
|
|
auth: &signedKeyAgreement{
|
||
|
|
keyType: keyTypeRSA,
|
||
|
|
version: version,
|
||
|
|
},
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func pskKA(version uint16) keyAgreement {
|
||
|
|
return &pskKeyAgreement{
|
||
|
|
base: &nilKeyAgreement{},
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func ecdhePSKKA(version uint16) keyAgreement {
|
||
|
|
return &pskKeyAgreement{
|
||
|
|
base: &ecdheKeyAgreement{
|
||
|
|
auth: &nilKeyAgreementAuthentication{},
|
||
|
|
},
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// mutualCipherSuite returns a cipherSuite given a list of supported
|
||
|
|
// ciphersuites and the id requested by the peer.
|
||
|
|
func mutualCipherSuite(have []uint16, want uint16) *cipherSuite {
|
||
|
|
for _, id := range have {
|
||
|
|
if id == want {
|
||
|
|
return cipherSuiteFromID(id)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func cipherSuiteFromID(id uint16) *cipherSuite {
|
||
|
|
for _, suite := range cipherSuites {
|
||
|
|
if suite.id == id {
|
||
|
|
return suite
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
// A list of the possible cipher suite ids. Taken from
|
||
|
|
// http://www.iana.org/assignments/tls-parameters/tls-parameters.xml
|
||
|
|
const (
|
||
|
|
TLS_RSA_WITH_NULL_SHA uint16 = 0x0002
|
||
|
|
TLS_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0x000a
|
||
|
|
TLS_RSA_WITH_AES_128_CBC_SHA uint16 = 0x002f
|
||
|
|
TLS_RSA_WITH_AES_256_CBC_SHA uint16 = 0x0035
|
||
|
|
TLS_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0x003c
|
||
|
|
TLS_RSA_WITH_AES_256_CBC_SHA256 uint16 = 0x003d
|
||
|
|
TLS_PSK_WITH_AES_128_CBC_SHA uint16 = 0x008c
|
||
|
|
TLS_PSK_WITH_AES_256_CBC_SHA uint16 = 0x008d
|
||
|
|
TLS_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0x009c
|
||
|
|
TLS_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0x009d
|
||
|
|
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA uint16 = 0xc009
|
||
|
|
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA uint16 = 0xc00a
|
||
|
|
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA uint16 = 0xc012
|
||
|
|
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA uint16 = 0xc013
|
||
|
|
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA uint16 = 0xc014
|
||
|
|
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 uint16 = 0xc023
|
||
|
|
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 uint16 = 0xc024
|
||
|
|
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 uint16 = 0xc027
|
||
|
|
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 uint16 = 0xc028
|
||
|
|
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 uint16 = 0xc02b
|
||
|
|
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 uint16 = 0xc02c
|
||
|
|
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 uint16 = 0xc02f
|
||
|
|
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 uint16 = 0xc030
|
||
|
|
TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA uint16 = 0xc035
|
||
|
|
TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA uint16 = 0xc036
|
||
|
|
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xcca8
|
||
|
|
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xcca9
|
||
|
|
TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 uint16 = 0xccac
|
||
|
|
renegotiationSCSV uint16 = 0x00ff
|
||
|
|
fallbackSCSV uint16 = 0x5600
|
||
|
|
)
|
||
|
|
|
||
|
|
// Additional cipher suite IDs, not IANA-assigned.
|
||
|
|
const (
|
||
|
|
TLS_AES_128_GCM_SHA256 uint16 = 0x1301
|
||
|
|
TLS_AES_256_GCM_SHA384 uint16 = 0x1302
|
||
|
|
TLS_CHACHA20_POLY1305_SHA256 uint16 = 0x1303
|
||
|
|
)
|