import windows
from windows import winproxy
from windows.generated_def import *
from windows.crypto import DEFAULT_ENCODING, CertificateStore
[docs]def generate_selfsigned_certificate(name="CN=DEFAULT", prov=None, key_info=None, flags=0, signature_algo=None):
"""Generate a selfsigned certificate.
See `CertCreateSelfSignCertificate <https://msdn.microsoft.com/en-us/library/windows/desktop/aa376039(v=vs.85).aspx>`_
:return: :class:`windows.crypto.Certificate`
"""
size = ULONG(len(name) + 0x100)
buffer = (ctypes.c_ubyte * size.value)()
winproxy.CertStrToNameA(X509_ASN_ENCODING, name, CERT_OID_NAME_STR, None, buffer, size, None)
blobname = CRYPT_DATA_BLOB(size.value, buffer)
cert = winproxy.CertCreateSelfSignCertificate(prov, blobname, flags, key_info, signature_algo, None, None, None)
return windows.crypto.Certificate.from_pointer(cert)
[docs]def generate_key(prov, keytype=AT_KEYEXCHANGE, flags=CRYPT_EXPORTABLE):
"""Generate a keypair if type ``keytype``.
:return: :class:`HCRYPTKEY`
"""
key = HCRYPTKEY()
winproxy.CryptGenKey(prov, keytype, flags , key)
return key
# print(key[0])
# print("[OK] Key created")
# size = DWORD()
# winproxy.CryptExportKey(key, None, PRIVATEKEYBLOB, 0, None, size)
# buffer = (BYTE * size.value)()
# print("needed size = {0}".format(size))
# winproxy.CryptExportKey(key, None, PRIVATEKEYBLOB, 0, buffer, size)
# print("[OK] Key in buffer")
# keyraw = bytearray(buffer)
# # openssl.exe rsa -in key.out -inform MS\PRIVATEKEYBLOB -text
# save_as(keyraw, "key.out")
# #res = ctypes.WinDLL("advapi32").CryptReleaseContext(prov, 0)
# return key
[docs]def generate_pfx(hstore, password=None):
"""Generate a pfx protected by ``password`` contaning the certificates in ``hstore``
:return: :class:`bytearray` -- The raw PFX
"""
blob = CRYPT_DATA_BLOB(0, None)
winproxy.PFXExportCertStoreEx(hstore, blob, password, None, EXPORT_PRIVATE_KEYS | REPORT_NO_PRIVATE_KEY | REPORT_NOT_ABLE_TO_EXPORT_PRIVATE_KEY)
blob.pbData = (ctypes.c_ubyte * blob.cbData)()
winproxy.PFXExportCertStoreEx(hstore, blob, password, None, EXPORT_PRIVATE_KEYS | REPORT_NO_PRIVATE_KEY | REPORT_NOT_ABLE_TO_EXPORT_PRIVATE_KEY)
return blob.data