This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Cari Bantuan

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Pelajari Lebih Lanjut

Utas ini sudah ditutup dan diarsipkan. Silakan membuat pertanyaan baru jika Anda membutuhkan bantuan.

Bad Firefox implementation of SSL/TLS (error: ssl_error_no_cypher_overlap, RC4 and 3DES are turned OFF)

  • 1 balas
  • 1 memiliki masalah ini
  • 9 kunjungan
  • Balasan terakhir oleh cor-el

rasj
rasj
more options

When I turned OFF RC4 and 3DES Firefox can't connect to some SSL-server. But Internet Explorer and Opera with the same (absence of RC4 and 3DES and to the same server) can do it.

Why? I think this is the BAD implementation of SSL/TLS or a BUG!

And why in Firefox there are no cipher suits with SHA-256? I see in ServerHello a cipher suite(choosen by server): TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d) But this cipher suite absent in Firefox!


Firefox cipher suits:

TLS_EMPTY_RENEGOTIATION_INFO_SCSV (0x00ff) TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a) TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (0x0088) TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA (0x0087) TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x0039) TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x0038) TLS_ECDH_RSA_WITH_AES_256_CBC_SHA (0xc00f) TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xc005) TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x0084) TLS_RSA_WITH_AES_256_CBC_SHA (0x0035) TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009) TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (0x0045) TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA (0x0044) TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x0033) TLS_DHE_DSS_WITH_AES_128_CBC_SHA (0x0032) TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xc00e) TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xc004) TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x0041) TLS_RSA_WITH_AES_128_CBC_SHA (0x002f)


Opera cipher suits:

TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d) TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x006b) TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 (0x006a) TLS_DH_RSA_WITH_AES_256_CBC_SHA256 (0x0069) TLS_DH_DSS_WITH_AES_256_CBC_SHA256 (0x0068) TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x0039) TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x0038) TLS_DH_RSA_WITH_AES_256_CBC_SHA (0x0037) TLS_DH_DSS_WITH_AES_256_CBC_SHA (0x0036) TLS_RSA_WITH_AES_256_CBC_SHA (0x0035)


IE cipher suits:

TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d) TLS_RSA_WITH_AES_256_CBC_SHA (0x0035) TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028) TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 (0x006a) TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x0038)

When I turned OFF RC4 and 3DES Firefox can't connect to some SSL-server. But Internet Explorer and Opera with the same (absence of RC4 and 3DES and to the same server) can do it. Why? I think this is the BAD implementation of SSL/TLS or a BUG! And why in Firefox there are no cipher suits with SHA-256? I see in ServerHello a cipher suite(choosen by server): TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d) But this cipher suite absent in Firefox! Firefox cipher suits: TLS_EMPTY_RENEGOTIATION_INFO_SCSV (0x00ff) TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA (0xc00a) TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA (0x0088) TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA (0x0087) TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x0039) TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x0038) TLS_ECDH_RSA_WITH_AES_256_CBC_SHA (0xc00f) TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA (0xc005) TLS_RSA_WITH_CAMELLIA_256_CBC_SHA (0x0084) TLS_RSA_WITH_AES_256_CBC_SHA (0x0035) TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA (0xc009) TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA (0xc013) TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA (0x0045) TLS_DHE_DSS_WITH_CAMELLIA_128_CBC_SHA (0x0044) TLS_DHE_RSA_WITH_AES_128_CBC_SHA (0x0033) TLS_DHE_DSS_WITH_AES_128_CBC_SHA (0x0032) TLS_ECDH_RSA_WITH_AES_128_CBC_SHA (0xc00e) TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA (0xc004) TLS_RSA_WITH_CAMELLIA_128_CBC_SHA (0x0041) TLS_RSA_WITH_AES_128_CBC_SHA (0x002f) Opera cipher suits: TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d) TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 (0x006b) TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 (0x006a) TLS_DH_RSA_WITH_AES_256_CBC_SHA256 (0x0069) TLS_DH_DSS_WITH_AES_256_CBC_SHA256 (0x0068) TLS_DHE_RSA_WITH_AES_256_CBC_SHA (0x0039) TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x0038) TLS_DH_RSA_WITH_AES_256_CBC_SHA (0x0037) TLS_DH_DSS_WITH_AES_256_CBC_SHA (0x0036) TLS_RSA_WITH_AES_256_CBC_SHA (0x0035) IE cipher suits: TLS_RSA_WITH_AES_256_CBC_SHA256 (0x003d) TLS_RSA_WITH_AES_256_CBC_SHA (0x0035) TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA (0xc014) TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 (0xc028) TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 (0x006a) TLS_DHE_DSS_WITH_AES_256_CBC_SHA (0x0038)

Diperbarui oleh rasj pada

Semua Balasan (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

I think that it is best to keep the discussion in one thread, so I locking the other two that you created.

Please continue here: [/questions/976999]