term-output #4
159
rsa.py
159
rsa.py
@ -15,7 +15,7 @@ import os
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import sys
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import MillerRabin as mr
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VERSION="1.2.1"
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VERSION="1.2.2"
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keysFolder = "keys/"
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byteOrder = "little"
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N=0
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@ -28,82 +28,87 @@ ID=6
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def main():
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print("hesham-rsa version ", VERSION)
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if len(sys.argv) > 1:
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if sys.argv[1] == "gen" and len(sys.argv) == 4: ##rsa gen <keysize> <keyname>
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keyFileName = sys.argv[3]
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key = generateKeys(keyFileName, int(sys.argv[2]))
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print("e: ", key[E])
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print("n: ", key[N])
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print("d: ", key[D])
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printKey(key)
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try:
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saveKeyFile(key, keyFileName)
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except IOError:
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print("could not write file")
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sys.exit(1)
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except Exception as ex:
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print(ex)
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sys.exit(1)
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sys.exit(0)
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if sys.argv[1] == "encrypt": ##rsa encrypt <message> <key> <signer>
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if len(sys.argv) == 5:
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msg = sys.argv[2]
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msg_list = msg.split()
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keyName = sys.argv[3]
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signing_key_name = sys.argv[4]
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key = readKeyFile(keyName)
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signing_key = readKeyFile(signing_key_name)
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key_public = (key[N], key[E])
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msg_encrypted = ""
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for word in msg_list:
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msg_encrypted = msg_encrypted + " " + hex(encrypt(word, key_public))
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#msg_encrypted = encrypt(msg, key_public)
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print("Encrypted msg: \n", msg_encrypted)
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print("Signed: \n", sign(msg_encrypted, signing_key)) ## Adds an encrypted sig at the end of message.
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else:
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print("Not enough arguments")
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print("rsa encrypt <message> <key> <signer>")
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#Make help function
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sys.exit(0)
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if sys.argv[1] == "decrypt": ##rsa decrypt "<cipher>" <key>
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if len(sys.argv) == 4:
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cipher = sys.argv[2]
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cipher_list = cipher.split()
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sig = verify(cipher_list)
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del cipher_list[-1]
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msg_decrypted = ""
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key = readKeyFile(sys.argv[3])
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for cipher_word in cipher_list:
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msg_decrypted = msg_decrypted + " " + str(decrypt(int(cipher_word, 16),key[D],key[N]))
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if sig == None:
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print("\033[91mUnknown signature! \u2717" + "\033[0m")
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else:
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print("Signed by: \033[92m " + sig + " \u2713\033[0m")
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print("Decrypted message: \n", msg_decrypted)
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else:
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print("Not enough arguments")
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print("rsa decrypt \"<cipher>\" <keyid>")
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sys.exit(0)
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if sys.argv[1] == "list":
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listKeys()
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sys.exit(0)
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if sys.argv[1] == "export": #rsa export <key>
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if len(sys.argv) == 3:
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key_file_name = sys.argv[2]
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exportKey(key_file_name)
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sys.exit(0)
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else:
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print("Not enough arguments")
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print("rsa export <keyid>")
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if sys.argv[1] == "crack": #rsa crack <key>
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keyName = sys.argv[2]
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cracked_key = crackKey2(keyName)
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printKey(cracked_key)
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if sys.argv[1] == "print": #rsa print <key>
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printKey(readKeyFile(sys.argv[2]))
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if sys.argv[1] == "help":
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printHelp()
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if sys.argv[1] == "gen" and len(sys.argv) == 4: ##rsa gen <keysize> <keyname>
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keyFileName = sys.argv[3]
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key = generateKeys(keyFileName, int(sys.argv[2]))
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print("e: ", key[E])
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print("n: ", key[N])
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print("d: ", key[D])
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printKey(key)
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try:
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saveKeyFile(key, keyFileName)
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except IOError:
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print("could not write file")
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sys.exit(1)
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except Exception as ex:
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print(ex)
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sys.exit(1)
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sys.exit(0)
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if sys.argv[1] == "encrypt" and len(sys.argv) == 5: ##rsa encrypt <message> <key> <signer>
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msg = sys.argv[2]
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msg_list = msg.split()
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keyName = sys.argv[3]
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signing_key_name = sys.argv[4]
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key = readKeyFile(keyName)
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signing_key = readKeyFile(signing_key_name)
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key_public = (key[N], key[E])
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msg_encrypted = ""
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for word in msg_list:
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msg_encrypted = msg_encrypted + " " + hex(encrypt(word, key_public))
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#msg_encrypted = encrypt(msg, key_public)
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print("Encrypted msg: \n", msg_encrypted)
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print("Signed: \n", sign(msg_encrypted, signing_key)) ## Adds an encrypted sig at the end of message.
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sys.exit(0)
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elif sys.argv[1] == "encrypt":
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print("Not enough arguments")
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print("rsa encrypt <message> <key> <signer>")
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sys.exit(1)
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if sys.argv[1] == "decrypt" and len(sys.argv) == 4: ##rsa decrypt "<cipher>" <key>
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cipher = sys.argv[2]
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cipher_list = cipher.split()
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sig = verify(cipher_list)
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del cipher_list[-1]
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msg_decrypted = ""
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key = readKeyFile(sys.argv[3])
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for cipher_word in cipher_list:
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msg_decrypted = msg_decrypted + " " + str(decrypt(int(cipher_word, 16),key[D],key[N]))
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if sig == None:
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print("\033[91mUnknown signature! \u2717" + "\033[0m")
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else:
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print("Signed by: \033[92m " + sig + " \u2713\033[0m")
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print("Decrypted message: \n", msg_decrypted)
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sys.exit(0)
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elif sys.argv[1] == "decrypt":
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print("Not enough arguments")
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print("rsa decrypt \"<cipher>\" <keyid>")
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sys.exit(1)
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if sys.argv[1] == "list":
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listKeys()
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sys.exit(0)
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if sys.argv[1] == "export" and len(sys.argv) == 3: #rsa export <key>
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key_file_name = sys.argv[2]
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exportKey(key_file_name)
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sys.exit(0)
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elif sys.argv[1] == "export":
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printHelp()
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sys.exit(1)
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if sys.argv[1] == "crack" and len(sys.argv) == 3: #rsa crack <key>
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keyName = sys.argv[2]
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cracked_key = crackKey2(keyName)
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printKey(cracked_key)
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sys.exit(0)
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elif sys.argv[1] == "crack":
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printHelp()
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sys.exit(1)
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if sys.argv[1] == "print" and len(sys.argv) == 3: #rsa print <key>
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printKey(readKeyFile(sys.argv[2]))
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sys.exit(0)
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elif sys.argv[1] == "print":
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printHelp()
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sys.exit(1)
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if sys.argv[1] == "help":
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printHelp()
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sys.exit(0)
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#No command exit code
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printHelp()
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