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implement basic certificate compression

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This commit is contained in:
Lucas Clemente
2016-04-12 12:17:03 +02:00
parent 97187c5a31
commit d3097ed82a
1 changed files with 19 additions and 0 deletions
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19
crypto/proof_rsa.go
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@@ -51,3 +51,22 @@ func (kd *KeyData) SignServerProof(chlo []byte, serverConfigData []byte) ([]byte
hash.Write(serverConfigData)
return rsa.SignPSS(rand.Reader, kd.key, crypto.SHA256, hash.Sum(nil), &rsa.PSSOptions{SaltLength: 32})
}
// GetCERTdata gets the certificate in the format described by the QUIC crypto doc
func (kd *KeyData) GetCERTdata() []byte {
b := &bytes.Buffer{}
b.WriteByte(1) // Entry type compressed
b.WriteByte(0) // Entry type end_of_list
utils.WriteUint32(b, uint32(len(kd.cert.Raw)+4))
gz := zlib.NewWriter(b)
lenCert := len(kd.cert.Raw)
gz.Write([]byte{
byte(lenCert & 0xff),
byte((lenCert >> 8) & 0xff),
byte((lenCert >> 16) & 0xff),
byte((lenCert >> 24) & 0xff),
})
gz.Write(kd.cert.Raw)
gz.Close()
return b.Bytes()
}