def _import_subjectPublicKeyInfo(encoded, passphrase, params):
algoid, encoded_key, emb_params = _expand_subject_public_key_info(encoded)
if algoid != oid:
raise ValueError("No DSA subjectPublicKeyInfo")
if params and emb_params:
raise ValueError("Too many DSA parameters")
y = DerInteger().decode(encoded_key).value
p, q, g = list(DerSequence().decode(params or emb_params))
tup = (y, g, p, q)
return construct(tup)
def _import_subjectPublicKeyInfo(encoded, passphrase, params):
algoid, encoded_key, emb_params = _expand_subject_public_key_info(encoded)
if algoid != oid:
raise ValueError("No DSA subjectPublicKeyInfo")
if params and emb_params:
raise ValueError("Too many DSA parameters")
y = DerInteger().decode(encoded_key).value
p, q, g = list(DerSequence().decode(params or emb_params))
tup = (y, g, p, q)
return construct(tup)
def _import_subjectPublicKeyInfo(encoded, *kwargs):
oid, encoded_key, params = _expand_subject_public_key_info(encoded)
# We accept id-ecPublicKey, id-ecDH, id-ecMQV without making any
# distiction for now.
unrestricted_oid = "1.2.840.10045.2.1"
ecdh_oid = "1.3.132.1.12"
ecmqv_oid = "1.3.132.1.13"
if oid not in (unrestricted_oid, ecdh_oid, ecmqv_oid) or not params:
raise ValueError("Invalid ECC OID")
# ECParameters ::= CHOICE {
# namedCurve OBJECT IDENTIFIER
# -- implicitCurve NULL
# -- specifiedCurve SpecifiedECDomain
# }
curve_name = DerObjectId().decode(params).value
return _import_public_der(curve_name, encoded_key)
def _import_subjectPublicKeyInfo(encoded, *kwargs):
oid, encoded_key, params = _expand_subject_public_key_info(encoded)
# We accept id-ecPublicKey, id-ecDH, id-ecMQV without making any
# distiction for now.
unrestricted_oid = "1.2.840.10045.2.1"
ecdh_oid = "1.3.132.1.12"
ecmqv_oid = "1.3.132.1.13"
if oid not in (unrestricted_oid, ecdh_oid, ecmqv_oid) or not params:
raise ValueError("Invalid ECC OID")
# ECParameters ::= CHOICE {
# namedCurve OBJECT IDENTIFIER
# -- implicitCurve NULL
# -- specifiedCurve SpecifiedECDomain
# }
curve_name = DerObjectId().decode(params).value
return _import_public_der(curve_name, encoded_key)
def _import_subjectPublicKeyInfo(encoded, *kwargs):
"""Convert a subjectPublicKeyInfo into an EccKey object"""
# See RFC5480
# Parse the generic subjectPublicKeyInfo structure
oid, ec_point, params = _expand_subject_public_key_info(encoded)
# ec_point must be an encoded OCTET STRING
# params is encoded ECParameters
# We accept id-ecPublicKey, id-ecDH, id-ecMQV without making any
# distiction for now.
# Restrictions can be captured in the key usage certificate
# extension
unrestricted_oid = "1.2.840.10045.2.1"
ecdh_oid = "1.3.132.1.12"
ecmqv_oid = "1.3.132.1.13"
if oid not in (unrestricted_oid, ecdh_oid, ecmqv_oid):
raise UnsupportedEccFeature("Unsupported ECC purpose (OID: %s)" % oid)
# Parameters are mandatory for all three types
if not params:
raise ValueError("Missing ECC parameters")
# ECParameters ::= CHOICE {
# namedCurve OBJECT IDENTIFIER
# -- implicitCurve NULL
# -- specifiedCurve SpecifiedECDomain
# }
#
# implicitCurve and specifiedCurve are not supported (as per RFC)
curve_oid = DerObjectId().decode(params).value
return _import_public_der(curve_oid, ec_point)
def _import_subjectPublicKeyInfo(encoded, *kwargs):
"""Convert a subjectPublicKeyInfo into an EccKey object"""
# See RFC5480
# Parse the generic subjectPublicKeyInfo structure
oid, ec_point, params = _expand_subject_public_key_info(encoded)
# ec_point must be an encoded OCTET STRING
# params is encoded ECParameters
# We accept id-ecPublicKey, id-ecDH, id-ecMQV without making any
# distiction for now.
unrestricted_oid = "1.2.840.10045.2.1" # Restrictions can be captured
# in the key usage certificate
# extension
ecdh_oid = "1.3.132.1.12"
ecmqv_oid = "1.3.132.1.13"
if oid not in (unrestricted_oid, ecdh_oid, ecmqv_oid):
raise UnsupportedEccFeature("Unsupported ECC purpose (OID: %s)" % oid)
# Parameters are mandatory for all three types
if not params:
raise ValueError("Missing ECC parameters")
# ECParameters ::= CHOICE {
# namedCurve OBJECT IDENTIFIER
# -- implicitCurve NULL
# -- specifiedCurve SpecifiedECDomain
# }
#
# implicitCurve and specifiedCurve are not supported (as per RFC)
curve_oid = DerObjectId().decode(params).value
return _import_public_der(curve_oid, ec_point)
def _import_subjectPublicKeyInfo(encoded, *kwargs):
algoid, encoded_key, params = _expand_subject_public_key_info(encoded)
if algoid != oid or params is not None:
raise ValueError("No RSA subjectPublicKeyInfo")
return _import_pkcs1_public(encoded_key)
def _import_subjectPublicKeyInfo(encoded, *kwargs):
algoid, encoded_key, params = _expand_subject_public_key_info(encoded)
if algoid != oid or params is not None:
raise ValueError("No RSA subjectPublicKeyInfo")
return _import_pkcs1_public(encoded_key)
