def get_algs_from_ciphersuite_name(ciphersuite_name):
"""
Return the 3-tuple made of the Key Exchange Algorithm class, the Cipher
class and the HMAC class, through the parsing of the ciphersuite name.
"""
tls1_3 = False
if ciphersuite_name.startswith("TLS"):
s = ciphersuite_name[4:]
if s.endswith("CCM") or s.endswith("CCM_8"):
kx_name, s = s.split("_WITH_")
kx_alg = _tls_kx_algs.get(kx_name)
hash_alg = _tls_hash_algs.get("SHA256")
cipher_alg = _tls_cipher_algs.get(s)
hmac_alg = None
else:
if "WITH" in s:
kx_name, s = s.split("_WITH_")
kx_alg = _tls_kx_algs.get(kx_name)
else:
tls1_3 = True
kx_alg = _tls_kx_algs.get("TLS13")
hash_name = s.split('_')[-1]
hash_alg = _tls_hash_algs.get(hash_name)
cipher_name = s[:-(len(hash_name) + 1)]
if tls1_3:
cipher_name += "_TLS13"
cipher_alg = _tls_cipher_algs.get(cipher_name)
hmac_alg = None
if cipher_alg is not None and cipher_alg.type != "aead":
hmac_name = "HMAC-%s" % hash_name
hmac_alg = _tls_hmac_algs.get(hmac_name)
elif ciphersuite_name.startswith("SSL"):
s = ciphersuite_name[7:]
kx_alg = _tls_kx_algs.get("SSLv2")
cipher_name, hash_name = s.split("_WITH_")
cipher_alg = _tls_cipher_algs.get(cipher_name.rstrip("_EXPORT40"))
kx_alg.export = cipher_name.endswith("_EXPORT40")
hmac_alg = _tls_hmac_algs.get("HMAC-NULL")
hash_alg = _tls_hash_algs.get(hash_name)
return kx_alg, cipher_alg, hmac_alg, hash_alg, tls1_3
def get_algs_from_ciphersuite_name(ciphersuite_name):
"""
Return the 3-tuple made of the Key Exchange Algorithm class, the Cipher
class and the HMAC class, through the parsing of the ciphersuite name.
"""
tls1_3 = False
if ciphersuite_name.startswith("TLS"):
s = ciphersuite_name[4:]
if s.endswith("CCM") or s.endswith("CCM_8"):
kx_name, s = s.split("_WITH_")
kx_alg = _tls_kx_algs.get(kx_name)
hash_alg = _tls_hash_algs.get("SHA256")
cipher_alg = _tls_cipher_algs.get(s)
hmac_alg = None
else:
if "WITH" in s:
kx_name, s = s.split("_WITH_")
kx_alg = _tls_kx_algs.get(kx_name)
else:
tls1_3 = True
kx_alg = _tls_kx_algs.get("TLS13")
hash_name = s.split('_')[-1]
hash_alg = _tls_hash_algs.get(hash_name)
cipher_name = s[:-(len(hash_name) + 1)]
if tls1_3:
cipher_name += "_TLS13"
cipher_alg = _tls_cipher_algs.get(cipher_name)
hmac_alg = None
if cipher_alg is not None and cipher_alg.type != "aead":
hmac_name = "HMAC-%s" % hash_name
hmac_alg = _tls_hmac_algs.get(hmac_name)
elif ciphersuite_name.startswith("SSL"):
s = ciphersuite_name[7:]
kx_alg = _tls_kx_algs.get("SSLv2")
cipher_name, hash_name = s.split("_WITH_")
cipher_alg = _tls_cipher_algs.get(cipher_name.rstrip("_EXPORT40"))
kx_alg.export = cipher_name.endswith("_EXPORT40")
hmac_alg = _tls_hmac_algs.get("HMAC-NULL")
hash_alg = _tls_hash_algs.get(hash_name)
return kx_alg, cipher_alg, hmac_alg, hash_alg, tls1_3