Skip to content

Instantly share code, notes, and snippets.

@wesleyit
Last active April 6, 2025 22:13
Show Gist options
  • Save wesleyit/a4f18fb356501047e4124adab79b904a to your computer and use it in GitHub Desktop.
Save wesleyit/a4f18fb356501047e4124adab79b904a to your computer and use it in GitHub Desktop.
My experimental hash algorithm (for learning purposes)
Display the source blob
Display the rendered blob
Raw
{
"cells": [
{
"cell_type": "code",
"execution_count": 38,
"id": "5d0af8bb-106f-4081-b5c3-51ab98cb4c45",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The message is: O cavalo morto eh um animal sem vida.\n",
"The message bytes are: b'bRRQXlBGQFsaDBRQXlBGQFsaYxRQXlBGQFsaIBRQXlBGQFsaIhRQXlBGQFsaIgNQXlBGQFsaIhRQXlBGQFsaIhlQXlBGQFsaIhpQXlBGQFsaIhofXlBGQFsaIhpSXlBGQFsaIhpQXlBGQFsaIhpNXlBGQFsaIhpNWFBGQFsaIhpNQ1BGQFsaIhpNDFBGQFsaIhpNSVBGQFsaIhpNSV1GQFsaIhpNSRVGQFsaIhpNSUBGQFsaIhpNSVhGQFsaIhpNSVgLQFsaIhpNSVhKQFsaIhpNSVhFQFsaIhpNSVhCQFsaIhpNSVhCRFsaIhpNSVhCSFsaIhpNSVhCRVsaIhpNSQ=='\n"
]
}
],
"source": [
"import base64\n",
"\n",
"\n",
"def get_whash(message_bytes: list) -> list:\n",
" MSG_SIZE = len(message_bytes)\n",
" pairs = []\n",
" for i in range(0, MSG_SIZE, 2):\n",
" b1 = message_bytes[i]\n",
" b2 = message_bytes[i + 1] if i < MSG_SIZE - 1 else 0\n",
" pairs.append(b2 ^ b1)\n",
" return pairs\n",
"\n",
"\n",
"def whash(message: str):\n",
" HASH_SIZE=256\n",
" counter = 1\n",
" initial_message = message\n",
" while len(message) < 4 * HASH_SIZE:\n",
" message = message + initial_message[counter:] + initial_message[:counter]\n",
" counter+=1\n",
" message = message[:HASH_SIZE * 4]\n",
" message_bytes = list(message.encode('UTF-8'))\n",
" while len(message_bytes) > HASH_SIZE:\n",
" message_bytes = get_whash(message_bytes)\n",
" return message_bytes\n",
"\n",
"\n",
"message = 'O cavalo morto eh um animal sem vida.'\n",
"message_hash = whash(message)\n",
"\n",
"\n",
"print('The message is:', message)\n",
"print('The message bytes are:', base64.b64encode(bytes(message_hash)))"
]
},
{
"cell_type": "code",
"execution_count": 42,
"id": "b06443fc-ac72-47aa-8917-d17828803a6f",
"metadata": {},
"outputs": [
{
"data": {
"text/plain": [
"848516"
]
},
"execution_count": 42,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"import lipsum\n",
"text = lipsum.generate_paragraphs(1000)\n",
"len(text)"
]
},
{
"cell_type": "code",
"execution_count": 45,
"id": "be9d3dde-ff63-46dc-b632-745eb3b2f3c3",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The message is: Restat locus huic disputationi vel maxime necessarius de amicitia, quam, si voluptas summum sit bonu\n",
"The message bytes are: b'MFkKVE4CE1FEHU4GD1JFFxxVGgAWS1VOFgAbEUgMZkgeD0V8EVcFXE4RBUoPCFNDUAwSQhZLEwBDT0BvEF8XBAZbCxEEXxYISA5EXBxZWFJUVhxLUEROXBZvABoTD0VBEU5MUAJKEEgOHBFKDVhUTglGE1BNbxIZUAIAVV5QCEoKVg4aC1F4D0cUQh4RNRsAR3gPflpDQRFVHUIVHFkFTQ4AQ0gRChxJFhZOClwIShcXD3FYQlhmDw0YQVpTHAxCA0QHT0gAQnoMXRpGTAdFBAZIQA5cDhQWDVtXVRBORUBFXxMQU2YYQkZEXEFYCBseCFIUTQYOCExaHFYLG0YORg=='\n"
]
}
],
"source": [
"message = text\n",
"message_hash = whash(message)\n",
"\n",
"\n",
"print('The message is:', message[:100])\n",
"print('The message bytes are:', base64.b64encode(bytes(message_hash)))"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.10.15"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment