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mapping of curve name to key_type

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This commit is contained in:
Hossein Shafagh 2020-09-09 19:47:51 -07:00
parent 1eb2df63cc
commit de0c38e9ba
1 changed files with 35 additions and 0 deletions
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35
lemur/common/utils.py
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@ -114,6 +114,41 @@ def get_authority_key(body):
return authority_key.hex()
def get_key_type_from_ec_curve(curve_name):
"""
Give an EC curve name, return the matching key_type.
:param: curve_name
:return: key_type
"""
_CURVE_TYPES = {
ec.SECP192R1().name: "ECCPRIME192V1",
ec.SECP256R1().name: "ECCPRIME256V1",
ec.SECP192R1().name: "ECCSECP192R1",
ec.SECP224R1().name: "ECCSECP224R1",
ec.SECP256R1().name: "ECCSECP256R1",
ec.SECP384R1().name: "ECCSECP384R1",
ec.SECP521R1().name: "ECCSECP521R1",
ec.SECP256K1().name: "ECCSECP256K1",
ec.SECT163K1().name: "ECCSECT163K1",
ec.SECT233K1().name: "ECCSECT233K1",
ec.SECT283K1().name: "ECCSECT283K1",
ec.SECT409K1().name: "ECCSECT409K1",
ec.SECT571K1().name: "ECCSECT571K1",
ec.SECT163R2().name: "ECCSECT163R2",
ec.SECT233R1().name: "ECCSECT233R1",
ec.SECT283R1().name: "ECCSECT283R1",
ec.SECT409R1().name: "ECCSECT409R1",
ec.SECT571R1().name: "ECCSECT571R2",
}
if curve_name in _CURVE_TYPES.keys():
return _CURVE_TYPES[curve_name]
else:
return None
def generate_private_key(key_type):
"""
Generates a new private key based on key_type.