def crackEncText(crackfile, estr123, n123):
n1 = int(n123[0])
n2 = int(n123[1])
n3 = int(n123[2])
M1 = n2 * n3
M2 = n1 * n3
M3 = n1 * n2
M1I = BitVector(intVal=M1).multiplicative_inverse(n123[0])
M2I = BitVector(intVal=M2).multiplicative_inverse(n123[1])
M3I = BitVector(intVal=M3).multiplicative_inverse(n123[2])
c1 = M1 * int(M1I)
c2 = M2 * int(M2I)
c3 = M3 * int(M3I)
block1 = getEncBlocksFromHexString(estr123[0])
block2 = getEncBlocksFromHexString(estr123[1])
block3 = getEncBlocksFromHexString(estr123[2])
d_str = ""
for i in range(len(block1)):
e1 = int(block1[i])
e2 = int(block2[i])
e3 = int(block3[i])
M_cube = pow(e1 * c1 + e2 * c2 + e3 * c3, 1, n1 * n2 * n3)
M = solve_pRoot(3, M_cube)
bv = BitVector(intVal=M, size=128)
d_str = d_str + bv.get_text_from_bitvector()
d_str = filter(lambda x: x in string.printable, d_str)
writeToFile(crackfile, d_str[:-1])
def decrypt(outfile, decfile, p, q, n, d, pbv, qbv, nbv, dbv):
enc_blocks = getEncBlocksFromHexFile(outfile)
d_text_str = ""
for eb in enc_blocks:
d_num = crtPow(int(eb), d, p, q)
d_numbv = BitVector(intVal = d_num, size = 256)
d_numbv = d_numbv[128:256]
d_text_str = d_text_str + d_numbv.get_text_from_bitvector()
#d_text_str = d_text_str.replace('\n', '')
writeToFile(decfile, d_text_str[:-1])
def writeFile(data_block, filename, type, mode):
## Open the output file
out = open(filename, 'wa')
## Depending if we're encrypting or decrypting for the size of byte to write
## 256 - Encrypt, 128 - Decrypt
for data in data_block:
if type:
bv = BitVector(intVal=data, size=256)
else:
bv = BitVector(intVal=data, size=128)
if mode:
out.write(bv.get_text_from_bitvector())
else:
out.write(bv.get_hex_string_from_bitvector())
