def load_dsa_parameter_numbers(self, numbers):
dsa._check_dsa_parameters(numbers)
dsa_cdata = self._lib.DSA_new()
assert dsa_cdata != self._ffi.NULL
dsa_cdata = self._ffi.gc(dsa_cdata, self._lib.DSA_free)
dsa_cdata.p = self._int_to_bn(numbers.p)
dsa_cdata.q = self._int_to_bn(numbers.q)
dsa_cdata.g = self._int_to_bn(numbers.g)
return _DSAParameters(self, dsa_cdata)
def load_dsa_parameter_numbers(self, numbers):
dsa._check_dsa_parameters(numbers)
dsa_cdata = self._lib.DSA_new()
assert dsa_cdata != self._ffi.NULL
dsa_cdata = self._ffi.gc(dsa_cdata, self._lib.DSA_free)
dsa_cdata.p = self._int_to_bn(numbers.p)
dsa_cdata.q = self._int_to_bn(numbers.q)
dsa_cdata.g = self._int_to_bn(numbers.g)
return _DSAParameters(self, dsa_cdata)
def generate_dsa_parameters(self, key_size):
if key_size not in (1024, 2048, 3072):
raise ValueError("Key size must be 1024 or 2048 or 3072 bits.")
if (self._lib.OPENSSL_VERSION_NUMBER < 0x1000000f and key_size > 1024):
raise ValueError(
"Key size must be 1024 because OpenSSL < 1.0.0 doesn't "
"support larger key sizes.")
ctx = self._lib.DSA_new()
assert ctx != self._ffi.NULL
ctx = self._ffi.gc(ctx, self._lib.DSA_free)
res = self._lib.DSA_generate_parameters_ex(ctx, key_size,
self._ffi.NULL, 0,
self._ffi.NULL,
self._ffi.NULL,
self._ffi.NULL)
assert res == 1
return _DSAParameters(self, ctx)
def generate_dsa_parameters(self, key_size):
if key_size not in (1024, 2048, 3072):
raise ValueError(
"Key size must be 1024 or 2048 or 3072 bits.")
if (self._lib.OPENSSL_VERSION_NUMBER < 0x1000000f and
key_size > 1024):
raise ValueError(
"Key size must be 1024 because OpenSSL < 1.0.0 doesn't "
"support larger key sizes.")
ctx = self._lib.DSA_new()
assert ctx != self._ffi.NULL
ctx = self._ffi.gc(ctx, self._lib.DSA_free)
res = self._lib.DSA_generate_parameters_ex(
ctx, key_size, self._ffi.NULL, 0,
self._ffi.NULL, self._ffi.NULL, self._ffi.NULL
)
assert res == 1
return _DSAParameters(self, ctx)
