Peter Surda
59b5ac3a61
- function check missed 1.1.0 release - TLS didn't work with anonymous ciphers
549 lines
22 KiB
Python
549 lines
22 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# Copyright (C) 2011 Yann GUIBET <yannguibet@gmail.com>
|
|
# See LICENSE for details.
|
|
#
|
|
# Software slightly changed by Jonathan Warren <bitmessage at-symbol jonwarren.org>
|
|
|
|
import sys
|
|
import ctypes
|
|
|
|
OpenSSL = None
|
|
|
|
|
|
class CipherName:
|
|
def __init__(self, name, pointer, blocksize):
|
|
self._name = name
|
|
self._pointer = pointer
|
|
self._blocksize = blocksize
|
|
|
|
def __str__(self):
|
|
return "Cipher : " + self._name + " | Blocksize : " + str(self._blocksize) + " | Fonction pointer : " + str(self._pointer)
|
|
|
|
def get_pointer(self):
|
|
return self._pointer()
|
|
|
|
def get_name(self):
|
|
return self._name
|
|
|
|
def get_blocksize(self):
|
|
return self._blocksize
|
|
|
|
|
|
def get_version(library):
|
|
version = None
|
|
hexversion = None
|
|
cflags = None
|
|
try:
|
|
#OpenSSL 1.1
|
|
OPENSSL_VERSION = 0
|
|
OPENSSL_CFLAGS = 1
|
|
library.OpenSSL_version.argtypes = [ctypes.c_int]
|
|
library.OpenSSL_version.restype = ctypes.c_char_p
|
|
version = library.OpenSSL_version(OPENSSL_VERSION)
|
|
cflags = library.OpenSSL_version(OPENSSL_CFLAGS)
|
|
library.OpenSSL_version_num.restype = ctypes.c_long
|
|
hexversion = library.OpenSSL_version_num()
|
|
except AttributeError:
|
|
try:
|
|
#OpenSSL 1.0
|
|
SSLEAY_VERSION = 0
|
|
SSLEAY_CFLAGS = 2
|
|
library.SSLeay.restype = ctypes.c_long
|
|
library.SSLeay_version.restype = ctypes.c_char_p
|
|
library.SSLeay_version.argtypes = [ctypes.c_int]
|
|
version = library.SSLeay_version(SSLEAY_VERSION)
|
|
cflags = library.SSLeay_version(SSLEAY_CFLAGS)
|
|
hexversion = library.SSLeay()
|
|
except AttributeError:
|
|
#raise NotImplementedError('Cannot determine version of this OpenSSL library.')
|
|
pass
|
|
return (version, hexversion, cflags)
|
|
|
|
|
|
class _OpenSSL:
|
|
"""
|
|
Wrapper for OpenSSL using ctypes
|
|
"""
|
|
def __init__(self, library):
|
|
"""
|
|
Build the wrapper
|
|
"""
|
|
self._lib = ctypes.CDLL(library)
|
|
self._version, self._hexversion, self._cflags = get_version(self._lib)
|
|
|
|
self.pointer = ctypes.pointer
|
|
self.c_int = ctypes.c_int
|
|
self.byref = ctypes.byref
|
|
self.create_string_buffer = ctypes.create_string_buffer
|
|
|
|
self.BN_new = self._lib.BN_new
|
|
self.BN_new.restype = ctypes.c_void_p
|
|
self.BN_new.argtypes = []
|
|
|
|
self.BN_free = self._lib.BN_free
|
|
self.BN_free.restype = None
|
|
self.BN_free.argtypes = [ctypes.c_void_p]
|
|
|
|
self.BN_num_bits = self._lib.BN_num_bits
|
|
self.BN_num_bits.restype = ctypes.c_int
|
|
self.BN_num_bits.argtypes = [ctypes.c_void_p]
|
|
|
|
self.BN_bn2bin = self._lib.BN_bn2bin
|
|
self.BN_bn2bin.restype = ctypes.c_int
|
|
self.BN_bn2bin.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.BN_bin2bn = self._lib.BN_bin2bn
|
|
self.BN_bin2bn.restype = ctypes.c_void_p
|
|
self.BN_bin2bn.argtypes = [ctypes.c_void_p, ctypes.c_int,
|
|
ctypes.c_void_p]
|
|
|
|
self.EC_KEY_free = self._lib.EC_KEY_free
|
|
self.EC_KEY_free.restype = None
|
|
self.EC_KEY_free.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_KEY_new_by_curve_name = self._lib.EC_KEY_new_by_curve_name
|
|
self.EC_KEY_new_by_curve_name.restype = ctypes.c_void_p
|
|
self.EC_KEY_new_by_curve_name.argtypes = [ctypes.c_int]
|
|
|
|
self.EC_KEY_generate_key = self._lib.EC_KEY_generate_key
|
|
self.EC_KEY_generate_key.restype = ctypes.c_int
|
|
self.EC_KEY_generate_key.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_KEY_check_key = self._lib.EC_KEY_check_key
|
|
self.EC_KEY_check_key.restype = ctypes.c_int
|
|
self.EC_KEY_check_key.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_KEY_get0_private_key = self._lib.EC_KEY_get0_private_key
|
|
self.EC_KEY_get0_private_key.restype = ctypes.c_void_p
|
|
self.EC_KEY_get0_private_key.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_KEY_get0_public_key = self._lib.EC_KEY_get0_public_key
|
|
self.EC_KEY_get0_public_key.restype = ctypes.c_void_p
|
|
self.EC_KEY_get0_public_key.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_KEY_get0_group = self._lib.EC_KEY_get0_group
|
|
self.EC_KEY_get0_group.restype = ctypes.c_void_p
|
|
self.EC_KEY_get0_group.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_POINT_get_affine_coordinates_GFp = self._lib.EC_POINT_get_affine_coordinates_GFp
|
|
self.EC_POINT_get_affine_coordinates_GFp.restype = ctypes.c_int
|
|
self.EC_POINT_get_affine_coordinates_GFp.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EC_KEY_set_private_key = self._lib.EC_KEY_set_private_key
|
|
self.EC_KEY_set_private_key.restype = ctypes.c_int
|
|
self.EC_KEY_set_private_key.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p]
|
|
|
|
self.EC_KEY_set_public_key = self._lib.EC_KEY_set_public_key
|
|
self.EC_KEY_set_public_key.restype = ctypes.c_int
|
|
self.EC_KEY_set_public_key.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p]
|
|
|
|
self.EC_KEY_set_group = self._lib.EC_KEY_set_group
|
|
self.EC_KEY_set_group.restype = ctypes.c_int
|
|
self.EC_KEY_set_group.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EC_POINT_set_affine_coordinates_GFp = self._lib.EC_POINT_set_affine_coordinates_GFp
|
|
self.EC_POINT_set_affine_coordinates_GFp.restype = ctypes.c_int
|
|
self.EC_POINT_set_affine_coordinates_GFp.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EC_POINT_new = self._lib.EC_POINT_new
|
|
self.EC_POINT_new.restype = ctypes.c_void_p
|
|
self.EC_POINT_new.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_POINT_free = self._lib.EC_POINT_free
|
|
self.EC_POINT_free.restype = None
|
|
self.EC_POINT_free.argtypes = [ctypes.c_void_p]
|
|
|
|
self.BN_CTX_free = self._lib.BN_CTX_free
|
|
self.BN_CTX_free.restype = None
|
|
self.BN_CTX_free.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EC_POINT_mul = self._lib.EC_POINT_mul
|
|
self.EC_POINT_mul.restype = None
|
|
self.EC_POINT_mul.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EC_KEY_set_private_key = self._lib.EC_KEY_set_private_key
|
|
self.EC_KEY_set_private_key.restype = ctypes.c_int
|
|
self.EC_KEY_set_private_key.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p]
|
|
|
|
if self._hexversion >= 0x10100000:
|
|
self.EC_KEY_OpenSSL = self._lib.EC_KEY_OpenSSL
|
|
self._lib.EC_KEY_OpenSSL.restype = ctypes.c_void_p
|
|
self._lib.EC_KEY_OpenSSL.argtypes = []
|
|
|
|
self.EC_KEY_set_method = self._lib.EC_KEY_set_method
|
|
self._lib.EC_KEY_set_method.restype = ctypes.c_int
|
|
self._lib.EC_KEY_set_method.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
|
|
else:
|
|
self.ECDH_OpenSSL = self._lib.ECDH_OpenSSL
|
|
self._lib.ECDH_OpenSSL.restype = ctypes.c_void_p
|
|
self._lib.ECDH_OpenSSL.argtypes = []
|
|
|
|
self.ECDH_set_method = self._lib.ECDH_set_method
|
|
self._lib.ECDH_set_method.restype = ctypes.c_int
|
|
self._lib.ECDH_set_method.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.BN_CTX_new = self._lib.BN_CTX_new
|
|
self._lib.BN_CTX_new.restype = ctypes.c_void_p
|
|
self._lib.BN_CTX_new.argtypes = []
|
|
|
|
self.ECDH_compute_key = self._lib.ECDH_compute_key
|
|
self.ECDH_compute_key.restype = ctypes.c_int
|
|
self.ECDH_compute_key.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_int, ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EVP_CipherInit_ex = self._lib.EVP_CipherInit_ex
|
|
self.EVP_CipherInit_ex.restype = ctypes.c_int
|
|
self.EVP_CipherInit_ex.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EVP_CIPHER_CTX_new = self._lib.EVP_CIPHER_CTX_new
|
|
self.EVP_CIPHER_CTX_new.restype = ctypes.c_void_p
|
|
self.EVP_CIPHER_CTX_new.argtypes = []
|
|
|
|
# Cipher
|
|
self.EVP_aes_128_cfb128 = self._lib.EVP_aes_128_cfb128
|
|
self.EVP_aes_128_cfb128.restype = ctypes.c_void_p
|
|
self.EVP_aes_128_cfb128.argtypes = []
|
|
|
|
self.EVP_aes_256_cfb128 = self._lib.EVP_aes_256_cfb128
|
|
self.EVP_aes_256_cfb128.restype = ctypes.c_void_p
|
|
self.EVP_aes_256_cfb128.argtypes = []
|
|
|
|
self.EVP_aes_128_cbc = self._lib.EVP_aes_128_cbc
|
|
self.EVP_aes_128_cbc.restype = ctypes.c_void_p
|
|
self.EVP_aes_128_cbc.argtypes = []
|
|
|
|
self.EVP_aes_256_cbc = self._lib.EVP_aes_256_cbc
|
|
self.EVP_aes_256_cbc.restype = ctypes.c_void_p
|
|
self.EVP_aes_256_cbc.argtypes = []
|
|
|
|
#self.EVP_aes_128_ctr = self._lib.EVP_aes_128_ctr
|
|
#self.EVP_aes_128_ctr.restype = ctypes.c_void_p
|
|
#self.EVP_aes_128_ctr.argtypes = []
|
|
|
|
#self.EVP_aes_256_ctr = self._lib.EVP_aes_256_ctr
|
|
#self.EVP_aes_256_ctr.restype = ctypes.c_void_p
|
|
#self.EVP_aes_256_ctr.argtypes = []
|
|
|
|
self.EVP_aes_128_ofb = self._lib.EVP_aes_128_ofb
|
|
self.EVP_aes_128_ofb.restype = ctypes.c_void_p
|
|
self.EVP_aes_128_ofb.argtypes = []
|
|
|
|
self.EVP_aes_256_ofb = self._lib.EVP_aes_256_ofb
|
|
self.EVP_aes_256_ofb.restype = ctypes.c_void_p
|
|
self.EVP_aes_256_ofb.argtypes = []
|
|
|
|
self.EVP_bf_cbc = self._lib.EVP_bf_cbc
|
|
self.EVP_bf_cbc.restype = ctypes.c_void_p
|
|
self.EVP_bf_cbc.argtypes = []
|
|
|
|
self.EVP_bf_cfb64 = self._lib.EVP_bf_cfb64
|
|
self.EVP_bf_cfb64.restype = ctypes.c_void_p
|
|
self.EVP_bf_cfb64.argtypes = []
|
|
|
|
self.EVP_rc4 = self._lib.EVP_rc4
|
|
self.EVP_rc4.restype = ctypes.c_void_p
|
|
self.EVP_rc4.argtypes = []
|
|
|
|
if self._hexversion >= 0x10100000:
|
|
self.EVP_CIPHER_CTX_reset = self._lib.EVP_CIPHER_CTX_reset
|
|
self.EVP_CIPHER_CTX_reset.restype = ctypes.c_int
|
|
self.EVP_CIPHER_CTX_reset.argtypes = [ctypes.c_void_p]
|
|
else:
|
|
self.EVP_CIPHER_CTX_cleanup = self._lib.EVP_CIPHER_CTX_cleanup
|
|
self.EVP_CIPHER_CTX_cleanup.restype = ctypes.c_int
|
|
self.EVP_CIPHER_CTX_cleanup.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EVP_CIPHER_CTX_free = self._lib.EVP_CIPHER_CTX_free
|
|
self.EVP_CIPHER_CTX_free.restype = None
|
|
self.EVP_CIPHER_CTX_free.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EVP_CipherUpdate = self._lib.EVP_CipherUpdate
|
|
self.EVP_CipherUpdate.restype = ctypes.c_int
|
|
self.EVP_CipherUpdate.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_int]
|
|
|
|
self.EVP_CipherFinal_ex = self._lib.EVP_CipherFinal_ex
|
|
self.EVP_CipherFinal_ex.restype = ctypes.c_int
|
|
self.EVP_CipherFinal_ex.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EVP_DigestInit = self._lib.EVP_DigestInit
|
|
self.EVP_DigestInit.restype = ctypes.c_int
|
|
self._lib.EVP_DigestInit.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EVP_DigestInit_ex = self._lib.EVP_DigestInit_ex
|
|
self.EVP_DigestInit_ex.restype = ctypes.c_int
|
|
self._lib.EVP_DigestInit_ex.argtypes = 3 * [ctypes.c_void_p]
|
|
|
|
self.EVP_DigestUpdate = self._lib.EVP_DigestUpdate
|
|
self.EVP_DigestUpdate.restype = ctypes.c_int
|
|
self.EVP_DigestUpdate.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p, ctypes.c_int]
|
|
|
|
self.EVP_DigestFinal = self._lib.EVP_DigestFinal
|
|
self.EVP_DigestFinal.restype = ctypes.c_int
|
|
self.EVP_DigestFinal.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EVP_DigestFinal_ex = self._lib.EVP_DigestFinal_ex
|
|
self.EVP_DigestFinal_ex.restype = ctypes.c_int
|
|
self.EVP_DigestFinal_ex.argtypes = [ctypes.c_void_p,
|
|
ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.ECDSA_sign = self._lib.ECDSA_sign
|
|
self.ECDSA_sign.restype = ctypes.c_int
|
|
self.ECDSA_sign.argtypes = [ctypes.c_int, ctypes.c_void_p,
|
|
ctypes.c_int, ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.ECDSA_verify = self._lib.ECDSA_verify
|
|
self.ECDSA_verify.restype = ctypes.c_int
|
|
self.ECDSA_verify.argtypes = [ctypes.c_int, ctypes.c_void_p,
|
|
ctypes.c_int, ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p]
|
|
|
|
if self._hexversion >= 0x10100000:
|
|
self.EVP_MD_CTX_new = self._lib.EVP_MD_CTX_new
|
|
self.EVP_MD_CTX_new.restype = ctypes.c_void_p
|
|
self.EVP_MD_CTX_new.argtypes = []
|
|
|
|
self.EVP_MD_CTX_reset = self._lib.EVP_MD_CTX_reset
|
|
self.EVP_MD_CTX_reset.restype = None
|
|
self.EVP_MD_CTX_reset.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EVP_MD_CTX_free = self._lib.EVP_MD_CTX_free
|
|
self.EVP_MD_CTX_free.restype = None
|
|
self.EVP_MD_CTX_free.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EVP_sha1 = self._lib.EVP_sha1
|
|
self.EVP_sha1.restype = ctypes.c_void_p
|
|
self.EVP_sha1.argtypes = []
|
|
|
|
self.digest_ecdsa_sha1 = self.EVP_sha1
|
|
else:
|
|
self.EVP_MD_CTX_create = self._lib.EVP_MD_CTX_create
|
|
self.EVP_MD_CTX_create.restype = ctypes.c_void_p
|
|
self.EVP_MD_CTX_create.argtypes = []
|
|
|
|
self.EVP_MD_CTX_init = self._lib.EVP_MD_CTX_init
|
|
self.EVP_MD_CTX_init.restype = None
|
|
self.EVP_MD_CTX_init.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EVP_MD_CTX_destroy = self._lib.EVP_MD_CTX_destroy
|
|
self.EVP_MD_CTX_destroy.restype = None
|
|
self.EVP_MD_CTX_destroy.argtypes = [ctypes.c_void_p]
|
|
|
|
self.EVP_ecdsa = self._lib.EVP_ecdsa
|
|
self._lib.EVP_ecdsa.restype = ctypes.c_void_p
|
|
self._lib.EVP_ecdsa.argtypes = []
|
|
|
|
self.digest_ecdsa_sha1 = self.EVP_ecdsa
|
|
|
|
self.RAND_bytes = self._lib.RAND_bytes
|
|
self.RAND_bytes.restype = ctypes.c_int
|
|
self.RAND_bytes.argtypes = [ctypes.c_void_p, ctypes.c_int]
|
|
|
|
self.EVP_sha256 = self._lib.EVP_sha256
|
|
self.EVP_sha256.restype = ctypes.c_void_p
|
|
self.EVP_sha256.argtypes = []
|
|
|
|
self.i2o_ECPublicKey = self._lib.i2o_ECPublicKey
|
|
self.i2o_ECPublicKey.restype = ctypes.c_void_p
|
|
self.i2o_ECPublicKey.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
self.EVP_sha512 = self._lib.EVP_sha512
|
|
self.EVP_sha512.restype = ctypes.c_void_p
|
|
self.EVP_sha512.argtypes = []
|
|
|
|
self.HMAC = self._lib.HMAC
|
|
self.HMAC.restype = ctypes.c_void_p
|
|
self.HMAC.argtypes = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_int,
|
|
ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p, ctypes.c_void_p]
|
|
|
|
try:
|
|
self.PKCS5_PBKDF2_HMAC = self._lib.PKCS5_PBKDF2_HMAC
|
|
except:
|
|
# The above is not compatible with all versions of OSX.
|
|
self.PKCS5_PBKDF2_HMAC = self._lib.PKCS5_PBKDF2_HMAC_SHA1
|
|
|
|
self.PKCS5_PBKDF2_HMAC.restype = ctypes.c_int
|
|
self.PKCS5_PBKDF2_HMAC.argtypes = [ctypes.c_void_p, ctypes.c_int,
|
|
ctypes.c_void_p, ctypes.c_int,
|
|
ctypes.c_int, ctypes.c_void_p,
|
|
ctypes.c_int, ctypes.c_void_p]
|
|
|
|
self._set_ciphers()
|
|
self._set_curves()
|
|
|
|
def _set_ciphers(self):
|
|
self.cipher_algo = {
|
|
'aes-128-cbc': CipherName('aes-128-cbc', self.EVP_aes_128_cbc, 16),
|
|
'aes-256-cbc': CipherName('aes-256-cbc', self.EVP_aes_256_cbc, 16),
|
|
'aes-128-cfb': CipherName('aes-128-cfb', self.EVP_aes_128_cfb128, 16),
|
|
'aes-256-cfb': CipherName('aes-256-cfb', self.EVP_aes_256_cfb128, 16),
|
|
'aes-128-ofb': CipherName('aes-128-ofb', self._lib.EVP_aes_128_ofb, 16),
|
|
'aes-256-ofb': CipherName('aes-256-ofb', self._lib.EVP_aes_256_ofb, 16),
|
|
#'aes-128-ctr': CipherName('aes-128-ctr', self._lib.EVP_aes_128_ctr, 16),
|
|
#'aes-256-ctr': CipherName('aes-256-ctr', self._lib.EVP_aes_256_ctr, 16),
|
|
'bf-cfb': CipherName('bf-cfb', self.EVP_bf_cfb64, 8),
|
|
'bf-cbc': CipherName('bf-cbc', self.EVP_bf_cbc, 8),
|
|
'rc4': CipherName('rc4', self.EVP_rc4, 128), # 128 is the initialisation size not block size
|
|
}
|
|
|
|
def _set_curves(self):
|
|
self.curves = {
|
|
'secp112r1': 704,
|
|
'secp112r2': 705,
|
|
'secp128r1': 706,
|
|
'secp128r2': 707,
|
|
'secp160k1': 708,
|
|
'secp160r1': 709,
|
|
'secp160r2': 710,
|
|
'secp192k1': 711,
|
|
'secp224k1': 712,
|
|
'secp224r1': 713,
|
|
'secp256k1': 714,
|
|
'secp384r1': 715,
|
|
'secp521r1': 716,
|
|
'sect113r1': 717,
|
|
'sect113r2': 718,
|
|
'sect131r1': 719,
|
|
'sect131r2': 720,
|
|
'sect163k1': 721,
|
|
'sect163r1': 722,
|
|
'sect163r2': 723,
|
|
'sect193r1': 724,
|
|
'sect193r2': 725,
|
|
'sect233k1': 726,
|
|
'sect233r1': 727,
|
|
'sect239k1': 728,
|
|
'sect283k1': 729,
|
|
'sect283r1': 730,
|
|
'sect409k1': 731,
|
|
'sect409r1': 732,
|
|
'sect571k1': 733,
|
|
'sect571r1': 734,
|
|
}
|
|
|
|
def BN_num_bytes(self, x):
|
|
"""
|
|
returns the length of a BN (OpenSSl API)
|
|
"""
|
|
return int((self.BN_num_bits(x) + 7) / 8)
|
|
|
|
def get_cipher(self, name):
|
|
"""
|
|
returns the OpenSSL cipher instance
|
|
"""
|
|
if name not in self.cipher_algo:
|
|
raise Exception("Unknown cipher")
|
|
return self.cipher_algo[name]
|
|
|
|
def get_curve(self, name):
|
|
"""
|
|
returns the id of a elliptic curve
|
|
"""
|
|
if name not in self.curves:
|
|
raise Exception("Unknown curve")
|
|
return self.curves[name]
|
|
|
|
def get_curve_by_id(self, id):
|
|
"""
|
|
returns the name of a elliptic curve with his id
|
|
"""
|
|
res = None
|
|
for i in self.curves:
|
|
if self.curves[i] == id:
|
|
res = i
|
|
break
|
|
if res is None:
|
|
raise Exception("Unknown curve")
|
|
return res
|
|
|
|
def rand(self, size):
|
|
"""
|
|
OpenSSL random function
|
|
"""
|
|
buffer = self.malloc(0, size)
|
|
# This pyelliptic library, by default, didn't check the return value of RAND_bytes. It is
|
|
# evidently possible that it returned an error and not-actually-random data. However, in
|
|
# tests on various operating systems, while generating hundreds of gigabytes of random
|
|
# strings of various sizes I could not get an error to occur. Also Bitcoin doesn't check
|
|
# the return value of RAND_bytes either.
|
|
# Fixed in Bitmessage version 0.4.2 (in source code on 2013-10-13)
|
|
while self.RAND_bytes(buffer, size) != 1:
|
|
import time
|
|
time.sleep(1)
|
|
return buffer.raw
|
|
|
|
def malloc(self, data, size):
|
|
"""
|
|
returns a create_string_buffer (ctypes)
|
|
"""
|
|
buffer = None
|
|
if data != 0:
|
|
if sys.version_info.major == 3 and isinstance(data, type('')):
|
|
data = data.encode()
|
|
buffer = self.create_string_buffer(data, size)
|
|
else:
|
|
buffer = self.create_string_buffer(size)
|
|
return buffer
|
|
|
|
def loadOpenSSL():
|
|
global OpenSSL
|
|
from os import path, environ
|
|
from ctypes.util import find_library
|
|
|
|
libdir = []
|
|
if getattr(sys,'frozen', None):
|
|
if 'darwin' in sys.platform:
|
|
libdir.extend([
|
|
path.join(environ['RESOURCEPATH'], '..', 'Frameworks','libcrypto.dylib'),
|
|
path.join(environ['RESOURCEPATH'], '..', 'Frameworks','libcrypto.1.1.0.dylib'),
|
|
path.join(environ['RESOURCEPATH'], '..', 'Frameworks','libcrypto.1.0.2.dylib'),
|
|
path.join(environ['RESOURCEPATH'], '..', 'Frameworks','libcrypto.1.0.1.dylib'),
|
|
path.join(environ['RESOURCEPATH'], '..', 'Frameworks','libcrypto.1.0.0.dylib'),
|
|
path.join(environ['RESOURCEPATH'], '..', 'Frameworks','libcrypto.0.9.8.dylib'),
|
|
])
|
|
elif 'win32' in sys.platform or 'win64' in sys.platform:
|
|
libdir.append(path.join(sys._MEIPASS, 'libeay32.dll'))
|
|
else:
|
|
libdir.extend([
|
|
path.join(sys._MEIPASS, 'libcrypto.so'),
|
|
path.join(sys._MEIPASS, 'libssl.so'),
|
|
path.join(sys._MEIPASS, 'libcrypto.so.1.1.0'),
|
|
path.join(sys._MEIPASS, 'libssl.so.1.1.0'),
|
|
path.join(sys._MEIPASS, 'libcrypto.so.1.0.2'),
|
|
path.join(sys._MEIPASS, 'libssl.so.1.0.2'),
|
|
path.join(sys._MEIPASS, 'libcrypto.so.1.0.1'),
|
|
path.join(sys._MEIPASS, 'libssl.so.1.0.1'),
|
|
path.join(sys._MEIPASS, 'libcrypto.so.1.0.0'),
|
|
path.join(sys._MEIPASS, 'libssl.so.1.0.0'),
|
|
path.join(sys._MEIPASS, 'libcrypto.so.0.9.8'),
|
|
path.join(sys._MEIPASS, 'libssl.so.0.9.8'),
|
|
])
|
|
if 'darwin' in sys.platform:
|
|
libdir.extend(['libcrypto.dylib', '/usr/local/opt/openssl/lib/libcrypto.dylib'])
|
|
elif 'win32' in sys.platform or 'win64' in sys.platform:
|
|
libdir.append('libeay32.dll')
|
|
else:
|
|
libdir.append('libcrypto.so')
|
|
libdir.append('libssl.so')
|
|
if 'linux' in sys.platform or 'darwin' in sys.platform or 'bsd' in sys.platform:
|
|
libdir.append(find_library('ssl'))
|
|
elif 'win32' in sys.platform or 'win64' in sys.platform:
|
|
libdir.append(find_library('libeay32'))
|
|
for library in libdir:
|
|
try:
|
|
OpenSSL = _OpenSSL(library)
|
|
return
|
|
except:
|
|
pass
|
|
raise Exception("Couldn't find and load the OpenSSL library. You must install it.")
|
|
|
|
loadOpenSSL()
|