tls_ciphers.h

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  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/
 
#ifndef TLS_CIPHERS_INCLUDED
#define TLS_CIPHERS_INCLUDED
 
namespace {
 
/**
  Configuring list of ciphers
 
  TLSv1.2
  =======
  Server: Specify in folllowing order:
  1. Blocked ciphers
  2. Approved ciphers
 
  Client: Specify in following order:
  1. Blocked ciphers
  2. Approved ciphers
  3. Client specific ciphers
 
  TLSv1.3
  =======
  Server: Specify in folllowing order:
  1. Blocked ciphers (None atm)
  2. Approved ciphers
 
  Client: Specify in following order:
  1. Blocked ciphers (None atm)
  2. Approved ciphers
  3. Client specific ciphers (None atm)
 
*/
 
/*
  List of TLSv1.3 ciphers in order to their priority.
  Addition to the list must be done keeping priority of the
  new cipher in mind.
  The last entry must not contain a trailing ":".
 
  Current criteria for inclusion is:
  1. Must provide Perfect Forward Secrecy
  2. Uses SHA2 in cipher/certificate
  3. Uses AES in GCM or any other AEAD algorithms/modes
*/
const char default_tls13_ciphers[] = {
    "TLS_AES_128_GCM_SHA256:"
    "TLS_AES_256_GCM_SHA384:"
    "TLS_CHACHA20_POLY1305_SHA256:"
    "TLS_AES_128_CCM_SHA256"};
 
/*
  List of TLSv1.2 ciphers in order to their priority.
  Addition to the list must be done keeping priority of the
  new cipher in mind.
  The last entry must not contain a trailing ":".
 
  Current criteria for inclusion is:
  1. Must provide Perfect Forward Secrecy
  2. Uses SHA2 in cipher/certificate
  3. Uses AES in GCM or any other AEAD algorithms/modes
*/
const char default_tls12_ciphers[] = {
    "ECDHE-ECDSA-AES128-GCM-SHA256:"
    "ECDHE-ECDSA-AES256-GCM-SHA384:"
    "ECDHE-RSA-AES128-GCM-SHA256:"
    "ECDHE-RSA-AES256-GCM-SHA384:"
    "ECDHE-ECDSA-CHACHA20-POLY1305:"
    "ECDHE-RSA-CHACHA20-POLY1305:"
    "ECDHE-ECDSA-AES256-CCM:"
    "ECDHE-ECDSA-AES128-CCM:"
    "DHE-RSA-AES128-GCM-SHA256:"
    "DHE-RSA-AES256-GCM-SHA384:"
    "DHE-RSA-AES256-CCM:"
    "DHE-RSA-AES128-CCM:"
    "DHE-RSA-CHACHA20-POLY1305"};
 
/*
  Following ciphers (or categories of ciphers) are not permitted
  because they are too weak to provide required security.
 
  New cipher/category can be added at any position.
 
  Care must be taken to prefix cipher/category with "!"
*/
const char blocked_tls12_ciphers[] = {
    "!aNULL:"
    "!eNULL:"
    "!EXPORT:"
    "!LOW:"
    "!MD5:"
    "!DES:"
    "!3DES:"
    "!RC2:"
    "!RC4:"
    "!PSK:"
    "!DH-RSA-AES128-SHA256:"
    "!DH-RSA-AES256-SHA256:"
    "!DH-DSS-AES128-SHA256:"
    "!DH-DSS-AES128-SHA:"
    "!DH-DSS-AES256-SHA:"
    "!DH-DSS-AES256-SHA256:"
    "!DH-RSA-AES128-SHA:"
    "!DH-RSA-AES256-SHA:"
    "!DH-DSS-AES128-GCM-SHA256:"
    "!DH-DSS-AES256-GCM-SHA384:"
    "!DH-RSA-AES128-GCM-SHA256:"
    "!DH-RSA-AES256-GCM-SHA384"};
 
/*
  Following ciphers are added to the list of permissible ciphers
  while configuring the ciphers on client side.
 
  This is done to provide backward compatbility.
*/
const char additional_client_ciphers[] = {
    "ECDHE-ECDSA-AES256-CCM8:"
    "ECDHE-ECDSA-AES128-CCM8:"
    "DHE-RSA-AES256-CCM8:"
    "DHE-RSA-AES128-CCM8:"
    "ECDHE-ECDSA-AES128-SHA256:"
    "ECDHE-RSA-AES128-SHA256:"
    "ECDHE-ECDSA-AES256-SHA384:"
    "ECDHE-RSA-AES256-SHA384:"
    "DHE-DSS-AES256-GCM-SHA384:"
    "DHE-DSS-AES128-GCM-SHA256:"
    "DHE-DSS-AES128-SHA256:"
    "DHE-DSS-AES256-SHA256:"
    "DHE-RSA-AES256-SHA256:"
    "DHE-RSA-AES128-SHA256:"
    "DHE-RSA-CAMELLIA256-SHA256:"
    "DHE-RSA-CAMELLIA128-SHA256:"
    "ECDHE-RSA-AES128-SHA:"
    "ECDHE-ECDSA-AES128-SHA:"
    "ECDHE-RSA-AES256-SHA:"
    "ECDHE-ECDSA-AES256-SHA:"
    "DHE-DSS-AES128-SHA:"
    "DHE-RSA-AES128-SHA:"
    "DHE-RSA-AES256-SHA:"
    "DHE-DSS-AES256-SHA:"
    "DHE-RSA-CAMELLIA256-SHA:"
    "DHE-RSA-CAMELLIA128-SHA:"
    "ECDH-ECDSA-AES128-SHA256:"
    "ECDH-RSA-AES128-SHA256:"
    "ECDH-RSA-AES256-SHA384:"
    "ECDH-ECDSA-AES256-SHA384:"
    "ECDH-ECDSA-AES128-SHA:"
    "ECDH-ECDSA-AES256-SHA:"
    "ECDH-RSA-AES128-SHA:"
    "ECDH-RSA-AES256-SHA:"
    "AES128-GCM-SHA256:"
    "AES128-CCM:"
    "AES128-CCM8:"
    "AES256-GCM-SHA384:"
    "AES256-CCM:"
    "AES256-CCM8:"
    "AES128-SHA256:"
    "AES256-SHA256:"
    "AES128-SHA:"
    "AES256-SHA:"
    "CAMELLIA256-SHA:"
    "CAMELLIA128-SHA:"
    "ECDH-ECDSA-AES128-GCM-SHA256:"
    "ECDH-ECDSA-AES256-GCM-SHA384:"
    "ECDH-RSA-AES128-GCM-SHA256:"
    "ECDH-RSA-AES256-GCM-SHA384"};
 
}  // namespace
 
#endif /* TLS_CIPHERS_INCLUDED */