aboutsummaryrefslogtreecommitdiff
path: root/final
diff options
context:
space:
mode:
Diffstat (limited to 'final')
-rw-r--r--final/rsa-decrypt.py15
-rw-r--r--final/rsa-encrypt.py19
2 files changed, 9 insertions, 25 deletions
diff --git a/final/rsa-decrypt.py b/final/rsa-decrypt.py
index 39a2720..3bc0a06 100644
--- a/final/rsa-decrypt.py
+++ b/final/rsa-decrypt.py
@@ -1,7 +1,8 @@
-encrypted = [340, 316, 145, 278, 250, 435, 321, 109, 115, 490, 156, 212, 122, 288, 287, 164, 225] # Directly from demo output of encrypted
+import rsautils as ru
p = int(input('prime 1: '))
q = int(input('prime 2: '))
n = p*q
+encrypted = ru.int2list(ru.base642int(input('encrypted message:\n')),n)
tot = (p-1)*(q-1)
e = int(input('e: '))
@@ -15,15 +16,7 @@ def decrypt_block(blk):
return blk**d % n
decrypted = [decrypt_block(block) for block in encrypted]
-
-messagenum = 0
-for blockind in range(len(decrypted)):
- block = decrypted[blockind]
- messagenum += block * n ** blockind
-
-message = ''
-while messagenum > 0:
- message = chr(messagenum%128) + message
- messagenum = (messagenum-messagenum%128)//128
+messagenum = ru.list2int(decrypted,n,endian="big")
+message = ru.int2string(messagenum)
print(message)
diff --git a/final/rsa-encrypt.py b/final/rsa-encrypt.py
index a15fe9d..aa52509 100644
--- a/final/rsa-encrypt.py
+++ b/final/rsa-encrypt.py
@@ -1,24 +1,15 @@
-'''p = 29
-q = 17
-n = p*q
-tot = (p-1)*(q-1)
-e = 3 # Many present strictly for convenience's sake'''
+import rsautils as ru
+
n = int(input('n: '))
e = int(input('e (make sure it\'s relatively prime to p-1 and q-1): '))
message = input('message:\n')
messagenum = 0
-for char in message:
- messagenum += ord(char)
- messagenum *= 128 # Assuming ASCII only characters
-
-messageblocks = []
-while messagenum > 0:
- messageblocks.append(messagenum%n)
- messagenum = (messagenum-messagenum%n)//n
+messagenum = ru.string2int(message)
+messageblocks = ru.int2list(messagenum,n,endian="big")
def encrypt_block(blk):
return (blk ** e) % n
encrypted = [encrypt_block(block) for block in messageblocks]
-print(encrypted)
+print(ru.int2base64(ru.list2int(encrypted,n)))