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											2015-03-21 12:07:23 +01:00
										 |  |  | from __future__ import unicode_literals | 
					
						
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							|  |  |  | import codecs | 
					
						
							|  |  |  | import subprocess | 
					
						
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							|  |  |  | import os | 
					
						
							|  |  |  | import sys | 
					
						
							|  |  |  | sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__)))) | 
					
						
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							|  |  |  | from youtube_dl.utils import intlist_to_bytes | 
					
						
							|  |  |  | from youtube_dl.aes import aes_encrypt, key_expansion | 
					
						
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							|  |  |  | secret_msg = b'Secret message goes here' | 
					
						
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							|  |  |  | def hex_str(int_list): | 
					
						
							|  |  |  |     return codecs.encode(intlist_to_bytes(int_list), 'hex') | 
					
						
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							|  |  |  | def openssl_encode(algo, key, iv): | 
					
						
							|  |  |  |     cmd = ['openssl', 'enc', '-e', '-' + algo, '-K', hex_str(key), '-iv', hex_str(iv)] | 
					
						
							|  |  |  |     prog = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE) | 
					
						
							|  |  |  |     out, _ = prog.communicate(secret_msg) | 
					
						
							|  |  |  |     return out | 
					
						
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							|  |  |  | iv = key = [0x20, 0x15] + 14 * [0] | 
					
						
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							|  |  |  | r = openssl_encode('aes-128-cbc', key, iv) | 
					
						
							|  |  |  | print('aes_cbc_decrypt') | 
					
						
							|  |  |  | print(repr(r)) | 
					
						
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							|  |  |  | password = key | 
					
						
							|  |  |  | new_key = aes_encrypt(password, key_expansion(password)) | 
					
						
							|  |  |  | r = openssl_encode('aes-128-ctr', new_key, iv) | 
					
						
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											2015-03-22 12:09:58 +01:00
										 |  |  | print('aes_decrypt_text 16') | 
					
						
							|  |  |  | print(repr(r)) | 
					
						
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							|  |  |  | password = key + 16 * [0] | 
					
						
							|  |  |  | new_key = aes_encrypt(password, key_expansion(password)) * (32 // 16) | 
					
						
							|  |  |  | r = openssl_encode('aes-256-ctr', new_key, iv) | 
					
						
							|  |  |  | print('aes_decrypt_text 32') | 
					
						
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											2015-03-21 12:07:23 +01:00
										 |  |  | print(repr(r)) |