src/OpenSSL/crypto.py
def generate_key(self, type, bits):
        """
        Generate a key pair of the given type, with the given number of bits.

        This generates a key "into" the this object.

        :param type: The key type.
        :type type: :py:data:`TYPE_RSA` or :py:data:`TYPE_DSA`
        :param bits: The number of bits.
        :type bits: :py:data:`int` ``>= 0``
        :raises TypeError: If :py:data:`type` or :py:data:`bits` isn't
            of the appropriate type.
        :raises ValueError: If the number of bits isn't an integer of
            the appropriate size.
        :return: ``None``
        """
        if not isinstance(type, int):
            raise TypeError("type must be an integer")

        if not isinstance(bits, int):
            raise TypeError("bits must be an integer")

        if type == TYPE_RSA:
            if bits <= 0:
                raise ValueError("Invalid number of bits")

            # TODO Check error return
            exponent = _lib.BN_new()
            exponent = _ffi.gc(exponent, _lib.BN_free)
            _lib.BN_set_word(exponent, _lib.RSA_F4)

            rsa = _lib.RSA_new()

            result = _lib.RSA_generate_key_ex(rsa, bits, exponent, _ffi.NULL)
            _openssl_assert(result == 1)

            result = _lib.EVP_PKEY_assign_RSA(self._pkey, rsa)
            _openssl_assert(result == 1)

        elif type == TYPE_DSA:
            dsa = _lib.DSA_new()
            _openssl_assert(dsa != _ffi.NULL)

            dsa = _ffi.gc(dsa, _lib.DSA_free)
            res = _lib.DSA_generate_parameters_ex(
                dsa, bits, _ffi.NULL, 0, _ffi.NULL, _ffi.NULL, _ffi.NULL
            )
            _openssl_assert(res == 1)

            _openssl_assert(_lib.DSA_generate_key(dsa) == 1)
            _openssl_assert(_lib.EVP_PKEY_set1_DSA(self._pkey, dsa) == 1)
        else:
            raise Error("No such key type")

        self._initialized = True
def generate_key(self, type, bits):
        if not isinstance(type, int):
            raise TypeError("type must be an integer")

        if not isinstance(bits, int):
            raise TypeError("bits must be an integer")

        if type == TYPE_RSA:
            if bits <= 0:
                raise ValueError("Invalid number of bits")

            # TODO Check error return
            exponent = _lib.BN_new()
            exponent = _ffi.gc(exponent, _lib.BN_free)
            _lib.BN_set_word(exponent, _lib.RSA_F4)

            rsa = _lib.RSA_new()

            result = _lib.RSA_generate_key_ex(rsa, bits, exponent, _ffi.NULL)
            _openssl_assert(result == 1)

            result = _lib.EVP_PKEY_assign_RSA(self._pkey, rsa)
            _openssl_assert(result == 1)

        elif type == TYPE_DSA:
            dsa = _lib.DSA_new()
            _openssl_assert(dsa != _ffi.NULL)

            dsa = _ffi.gc(dsa, _lib.DSA_free)
            res = _lib.DSA_generate_parameters_ex(
                dsa, bits, _ffi.NULL, 0, _ffi.NULL, _ffi.NULL, _ffi.NULL
            )
            _openssl_assert(res == 1)

            _openssl_assert(_lib.DSA_generate_key(dsa) == 1)
            _openssl_assert(_lib.EVP_PKEY_set1_DSA(self._pkey, dsa) == 1)
        else:
            raise Error("No such key type")

        self._initialized = True
def generate_key ( self , type , bits ) : if not isinstance ( type , int ) : raise TypeError ( "type must be an integer" ) if not isinstance ( bits , int ) : raise TypeError ( "bits must be an integer" ) if type == TYPE_RSA : if bits <= 0 : raise ValueError ( "Invalid number of bits" ) # TODO Check error return exponent = _lib . BN_new ( ) exponent = _ffi . gc ( exponent , _lib . BN_free ) _lib . BN_set_word ( exponent , _lib . RSA_F4 ) rsa = _lib . RSA_new ( ) result = _lib . RSA_generate_key_ex ( rsa , bits , exponent , _ffi . NULL ) _openssl_assert ( result == 1 ) result = _lib . EVP_PKEY_assign_RSA ( self . _pkey , rsa ) _openssl_assert ( result == 1 ) elif type == TYPE_DSA : dsa = _lib . DSA_new ( ) _openssl_assert ( dsa != _ffi . NULL ) dsa = _ffi . gc ( dsa , _lib . DSA_free ) res = _lib . DSA_generate_parameters_ex ( dsa , bits , _ffi . NULL , 0 , _ffi . NULL , _ffi . NULL , _ffi . NULL ) _openssl_assert ( res == 1 ) _openssl_assert ( _lib . DSA_generate_key ( dsa ) == 1 ) _openssl_assert ( _lib . EVP_PKEY_set1_DSA ( self . _pkey , dsa ) == 1 ) else : raise Error ( "No such key type" ) self . _initialized = True
Generate a key pair of the given type, with the given number of bits.

        This generates a key "into" the this object.

        :param type: The key type.
        :type type: :py:data:`TYPE_RSA` or :py:data:`TYPE_DSA`
        :param bits: The number of bits.
        :type bits: :py:data:`int` ``>= 0``
        :raises TypeError: If :py:data:`type` or :py:data:`bits` isn't
            of the appropriate type.
        :raises ValueError: If the number of bits isn't an integer of
            the appropriate size.
        :return: ``None``
Generate a key pair of the given type with the given number of bits .