def verify(self, signature, msg, key):
""" check if the signature is correct according to the public key path given
and the message """
msg = self.remove_sign(msg)
key = RSA.importKey(key)
ha = SHA.SHA1Hash().new(msg)
verifier = PKCS1_v1_5.new(key)
signature = urllib.unquote(signature)
signature = base64.b64decode(signature)
return verifier.verify(ha, signature)
def pow(conn):
res = conn.recv_fixed_size(12)
i = random.randint(0, 2**32 - 1)
i = 2131672237762560000
while True:
i += 1
i %= 2**32
x = res + ('%08x' % i).encode()
if i % 10000 == 0:
print(i)
tmp = SHA.SHA1Hash(x).digest()
if tmp.endswith(b'\x00\x00\x00'):
print(tmp, x)
print('found it')
conn.send(x)
break
pass
def sign(self, message, skey):
m = SHA.SHA1Hash(message).digest()
s, = skey.sign(m, 0)
sig = number.long_to_bytes(s)
return sig
def verify(self, message, sig, pkey):
m = SHA.SHA1Hash(message).digest()
return pkey.verify(m, sig)
},
"sha256": {
"hashlib_hash": hashlib.new("sha256"),
"crypto_hash": SHA256.SHA256Hash()
},
"sha384": {
"hashlib_hash": hashlib.new("sha384"),
"crypto_hash": SHA384.SHA384Hash()
},
"sha512": {
"hashlib_hash": hashlib.new("sha512"),
"crypto_hash": SHA512.SHA512Hash()
},
"sha1": {
"hashlib_hash": hashlib.new("sha1"),
"crypto_hash": SHA.SHA1Hash()
},
"ripemd160": {
"hashlib_hash": hashlib.new("ripemd160"),
"crypto_hash": RIPEMD.RIPEMD160Hash()
}
}
# takes hasher
def hashFile(filename, hasher):
return hashit.hashIter(hashit.blockIter(open(filename, "rb")), hasher)
def hashStr(binary, hasher):
hasher.update(binary)