Hesham/hesham-rsa
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base-16 representation for all.

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Signed-off-by: HeshamTB <hishaminv@gmail.com>
This commit is contained in:
HeshamTB 2020-04-21 07:37:50 +03:00
parent a474683f5e
commit bdb2fa7780
Signed by: Hesham
GPG Key ID: 74876157D199B09E
1 changed files with 9 additions and 7 deletions
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16
rsa.py
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@ -52,7 +52,7 @@ def main():
key_public = (key[N], key[E]) key_public = (key[N], key[E])
msg_encrypted = "" msg_encrypted = ""
for word in msg_list: for word in msg_list:
msg_encrypted = msg_encrypted + " " + str(encrypt(word, key_public)) msg_encrypted = msg_encrypted + " " + hex(encrypt(word, key_public))
#msg_encrypted = encrypt(msg, key_public) #msg_encrypted = encrypt(msg, key_public)
print("Encrypted msg: \n", msg_encrypted) print("Encrypted msg: \n", msg_encrypted)
print("Signed: \n", sign(msg_encrypted, signing_key)) ## Adds an encrypted sig at the end of message. print("Signed: \n", sign(msg_encrypted, signing_key)) ## Adds an encrypted sig at the end of message.
@ -70,7 +70,7 @@ def main():
msg_decrypted = "" msg_decrypted = ""
key = readKeyFile(sys.argv[3]) key = readKeyFile(sys.argv[3])
for cipher_word in cipher_list: for cipher_word in cipher_list:
msg_decrypted = msg_decrypted + " " + str(decrypt(int(cipher_word),key[D],key[N])) msg_decrypted = msg_decrypted + " " + str(decrypt(int(cipher_word, 16),key[D],key[N]))
print("Signed by: ", sig) print("Signed by: ", sig)
print("Decrypted message: \n", msg_decrypted) print("Decrypted message: \n", msg_decrypted)
else: else:
@ -95,6 +95,7 @@ def main():
printHelp() printHelp()
#No command exit code #No command exit code
printHelp()
exit(127) exit(127)
@ -185,7 +186,7 @@ def sign(encrypted_msg, key):
enc_msg = str(encrypted_msg) enc_msg = str(encrypted_msg)
encrypted_msg_list = enc_msg.split() encrypted_msg_list = enc_msg.split()
enc_sig = encrypt("sig:"+key[ID], (key[N], key[D])) enc_sig = encrypt("sig:"+key[ID], (key[N], key[D]))
encrypted_msg_list.append(enc_sig) encrypted_msg_list.append(hex(enc_sig))
signed_msg = "" signed_msg = ""
for word in encrypted_msg_list: for word in encrypted_msg_list:
signed_msg = str(signed_msg) + " " + str(word) signed_msg = str(signed_msg) + " " + str(word)
@ -200,7 +201,7 @@ def verify(cipher_list):
for key_name in local_keys: for key_name in local_keys:
key = readKeyFile(key_name) key = readKeyFile(key_name)
print("Found key: ", key_name) print("Found key: ", key_name)
sig = str(decrypt(int(encrypted_sig), key[E], key[N])) sig = str(decrypt(int(encrypted_sig, 16), key[E], key[N]))
if "sig:" in sig: if "sig:" in sig:
return sig.replace("sig:","") return sig.replace("sig:","")
@ -219,7 +220,7 @@ def readKeyFile(keyName):
int(tempkey[PHI].strip(), 16), int(tempkey[PHI].strip(), 16),
str(tempkey[ID].strip())) str(tempkey[ID].strip()))
return key return key
def saveKeyFile(key, fileName): def saveKeyFile(key, fileName):
if not os.path.isdir(keysFolder): if not os.path.isdir(keysFolder):
@ -293,7 +294,7 @@ def crackKey2(keyName):
key = readKeyFile(keyName) key = readKeyFile(keyName)
n = key[N] n = key[N]
print("n: ", n) print("n: ", n)
bits = int(n.bit_length()) bits = int(n.bit_length()/2)
print("bits: ", bits) print("bits: ", bits)
while True: while True:
number = int.from_bytes(os.urandom(int(bits/8)), byteOrder) number = int.from_bytes(os.urandom(int(bits/8)), byteOrder)
@ -322,6 +323,7 @@ def printHelp():
print("rsa export <key>") print("rsa export <key>")
print("rsa crack <key>") print("rsa crack <key>")
print("rsa print <key>") print("rsa print <key>")
print("rsa list")
if __name__ == "__main__": if __name__ == "__main__":
main() main()