{"id":1403,"date":"2025-02-09T09:45:05","date_gmt":"2025-02-09T07:45:05","guid":{"rendered":"https:\/\/www.technology-asgard.com\/?p=1403"},"modified":"2025-02-09T09:48:07","modified_gmt":"2025-02-09T07:48:07","slug":"project-sd-sukhachevs-cipher","status":"publish","type":"post","link":"https:\/\/www.technology-asgard.com\/en\/project-sd-sukhachevs-cipher\/","title":{"rendered":"Project SD- Sukhachev&#8217;s cipher"},"content":{"rendered":"\n<p><\/p>\n\n\n\n<p>Author: Denys Pavlovych Sukhachev<\/p>\n\n\n\n<p><br><\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>This is a work, and the author&#8217;s right to a work is protected by international law. The author&#8217;s ownership of the work begins from the moment the work is created.<\/p>\n<\/blockquote>\n\n\n\n<p>Concept:<\/p>\n\n\n\n<p><br>I understand your idea of creating an innovative 3D encryption system with distributed access elements. Let&#8217;s create a prototype of such a system in Python, using the capabilities of the GPU to process 3D geometry.<\/p>\n\n\n\n<p>&#8220;`python<\/p>\n\n\n\n<p>import numpy as np<\/p>\n\n\n\n<p>import numpy.random as npr<\/p>\n\n\n\n<p>import hashlib<\/p>\n\n\n\n<p>from cryptography.fernet import Fernet<\/p>\n\n\n\n<p>from cryptography.hazmat.primitives import hashes<\/p>\n\n\n\n<p>from cryptography.hazmat.primitives.asymmetric import rsa, padding<\/p>\n\n\n\n<p>from cryptography.hazmat.primitives.kdf.pbkdf2 import PBKDF2HMAC<\/p>\n\n\n\n<p>from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes<\/p>\n\n\n\n<p>import base64<\/p>\n\n\n\n<p>import cupy as cp # To work with the GPU<\/p>\n\n\n\n<p>from dataclasses import dataclass<\/p>\n\n\n\n<p>import json<\/p>\n\n\n\n<p>@dataclass<\/p>\n\n\n\n<p>class Point3D:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; x: float<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; y: float<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; z: float<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; value: int<\/p>\n\n\n\n<p>class SpatialEncryption:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; def __init__(self, space_dimensions=(100, 100, 100)):<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Initialize the spatial encryption system<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; :param space_dimensions: 3D space dimensions (x, y, z)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; self.dimensions =&nbsp; space_dimensions<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; self.private_key =&nbsp; rsa.generate_private_key(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public_exponent=65537,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_size=2048<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; self.public_key =&nbsp; self.private_key.public_key()<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; def _generate_spatial_mask(self, seed):<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Generating a spatial mask based on seed<\/p>\n\n\n\n<p>&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; npr.seed(seed)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return np.random.random(*self.dimensions)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; def _data_to_points(self, data: bytes) -&gt; list[Point3D]:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Convert data to 3D points<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; points = []<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Use SHA-256 to create initial coordinates<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; hasher = hashlib.sha256(data)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; seed =&nbsp; int.from_bytes(hasher.digest()[:8], &#8216;big&#8217;)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; npr.seed(seed)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Convert each byte of data to a point<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for i, byte in enumerate(data):<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; x = npr.randomint(0, self.dimensions[0])<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; y = npr.randomint(0, self.dimensions[1])<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; z = npr.randomint(0, self.dimensions[2])<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; points.append(Point3D(x, y, z, byte))<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return points<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; def _points_to_volume(self, points: list[Point3D]) -&gt; cp.ndarray:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Convert points to 3D volume (on GPU)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Create an empty volume on the GPU<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; volume =&nbsp; cp.zeros(self.dimensions, dtype=cp.uint8)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Fill the volume with points<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for point in points:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; volume[point.x, point.y, point.z] = point.value<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return volume<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; def generate_access_key(self, user_id: str, permissions: list) -&gt; str:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Generate an access key for the user<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_data = {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8216;user_id&#8217;: &#8216;user_id&#8217;,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8216;permissions&#8217;: permissions,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8216;timestamp&#8217;: str(np.datetime64(&#8216;now&#8217;))<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Encrypt the key data<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_bytes =&nbsp; json.dumps(key_data).encode()<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encrypted_key =&nbsp; self.public_key.encrypt(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_bytes,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; padding.OAEP(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mgf=padding.MGF1(algorithm=hashes.SHA256()),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;algorithm=hashes.SHA256(),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; label= None<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return base64.b64encode(encrypted_key).decode()<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; def encrypt_data(self, data: bytes, access_keys: list[str]) -&gt; dict:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Data encryption using spatial coding<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Convert data to points<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; points =&nbsp; self._data_to_points(data)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Create a 3D volume on the GPU<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; volume =&nbsp; self._points_to_volume(points)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Generate a unique key for this dataset<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encryption_key =&nbsp; Fernet.generate_key()<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; f = Fernet(encryption_key)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Encrypting the volume<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encrypted_volume =&nbsp; f.encrypt(cp.asnumpy(volume).tobytes())<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;# Encrypt the encryption key for each recipient<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encrypted_keys = {}<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for access_key in access_keys:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_data = base64.b64decode(access_key)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Decrypt the access key data<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; decrypted_key_data =&nbsp; self.private_key.decrypt(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_data,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; padding.OAEP(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mgf=padding.MGF1(algorithm=hashes.SHA256()),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; algorithm=hashes.SHA256(),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; label= None<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;key_info =&nbsp; json.loads(decrypted_key_data)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Encrypt the encryption key for this user<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encrypted_keys[key_info[&#8216;user_id&#8217;]] = self.public_key.encrypt(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encryption_key,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; padding.OAEP(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;mgf=padding.MGF1(algorithm=hashes.SHA256()),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; algorithm=hashes.SHA256(),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; label= None<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return {<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8216;encrypted_volume&#8217;: encrypted_volume,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8216;encrypted_keys&#8217;: encrypted_keys<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp; def decrypt_data(self, encrypted_data: dict, access_key: str) -&gt; bytes:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Decrypting data using an access key<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &#8220;&#8221;&#8221;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Decrypt the access key<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_data = base64.b64decode(access_key)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; decrypted_key_data =&nbsp; self.private_key.decrypt(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_data,<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; padding.OAEP(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mgf=padding.MGF1(algorithm=hashes.SHA256()),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; algorithm=hashes.SHA256(),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; label= None<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; key_info =&nbsp; json.loads(decrypted_key_data)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Get the encryption key for this user<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if key_info[&#8216;user_id&#8217;] is not in encrypted_data[&#8216;encrypted_keys&#8217;]:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; raise ValueError(&#8220;You do not have access to this data&#8221;)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encryption_key =&nbsp; self.private_key.decrypt(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; encrypted_data[&#8216;encrypted_keys&#8217;][key_info[&#8216;user_id&#8217;]],<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; padding.OAEP(<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; mgf=padding.MGF1(algorithm=hashes.SHA256()),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; algorithm=hashes.SHA256(),<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; label= None<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; )<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Deciphering the volume<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; f = Fernet(encryption_key)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; volume_data =&nbsp; f.decrypt(encrypted_data[&#8216;encrypted_volume&#8217;])<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; volume =&nbsp; np.frombuffer(volume_data, dtype=np.uint8).reshape(self.dimensions)<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # Convert back to bytes<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; return volume.tobytes()<\/p>\n\n\n\n<p>&#8220;`<\/p>\n\n\n\n<p>Let&#8217;s take a look at how this system works:<\/p>\n\n\n\n<p>1. Spatial coding:<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Data is transformed into a set of 3D points in a virtual space<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Each point has coordinates (x, y, z) and a value<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Utilizes GPU for efficient processing of 3D space<\/p>\n\n\n\n<p>2. Access system:<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Each user receives a unique access key<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Keys contain information about permissions and access levels<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Asymmetric encryption is used to protect keys<\/p>\n\n\n\n<p>3. 3. End-to-end encryption:<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Full end-to-end encryption is implemented<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Data is encrypted at the level of 3D space<\/p>\n\n\n\n<p>&nbsp;&nbsp; &#8211; Additionally, cryptographic encryption is used<\/p>\n\n\n\n<p>Here&#8217;s an example of how to use it:<\/p>\n\n\n\n<p>&#8220;`python<\/p>\n\n\n\n<p># Create an encryption system<\/p>\n\n\n\n<p>encryption_system =&nbsp; SpatialEncryption()<\/p>\n\n\n\n<p># Generate access keys for users<\/p>\n\n\n\n<p>user1_key = encryption_system.generate_access_key(&#8220;user1&#8221;, [&#8220;read&#8221;, &#8220;write&#8221;])<\/p>\n\n\n\n<p>user2_key = encryption_system.generate_access_key(&#8220;user2&#8221;, [&#8220;read&#8221;])<\/p>\n\n\n\n<p># Encrypting data<\/p>\n\n\n\n<p>data = &#8220;Secret scientific data&#8221;.encode()<\/p>\n\n\n\n<p>encrypted_data =&nbsp; encryption_system.encrypt_data(data, [user1_key, user2_key])<\/p>\n\n\n\n<p># Decrypt data using the user&#8217;s key<\/p>\n\n\n\n<p>decrypted_data =&nbsp; encryption_system.decrypt_data(encrypted_data, user1_key)<\/p>\n\n\n\n<p>&#8220;`<\/p>\n\n\n\n<p>The system supports:<\/p>\n\n\n\n<p>1. 1. Multilevel access to data<\/p>\n\n\n\n<p>2. Spatial encryption on the GPU<\/p>\n\n\n\n<p>3. Cryptographic protection of keys<\/p>\n\n\n\n<p>4. 4. End-to-end data encryption<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Author: Denys Pavlovych Sukhachev This is a work, and the author&#8217;s right to a work is protected by international law. The author&#8217;s ownership of the work begins from the moment the work is created. Concept: I understand your idea of creating an innovative 3D encryption system with distributed access elements. Let&#8217;s create a prototype of such a system in Python, using the capabilities of the GPU to process 3D geometry. &#8220;`python import numpy as np import numpy.random as npr import [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1320,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1403","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bez-kategoriyi"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Project SD- Sukhachev&#039;s cipher - Asgard Technology<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.technology-asgard.com\/en\/project-sd-sukhachevs-cipher\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Project SD- Sukhachev&#039;s cipher - Asgard Technology\" \/>\n<meta property=\"og:description\" content=\"Author: Denys Pavlovych Sukhachev This is a work, and the author&#8217;s right to a work is protected by international law. 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