![]() Hosts_sample = (''for hostname in hosts_sample: Print("Program to demonstrate uuid3() and uuid5() is as follows:") In general, uuid3() and uuid5() versions are hashing namespace identifiers with a name, and few namespaces are defined by UUID module such as UUID.NAmESPACE_DNS, UUID.NAmESPACE_URL, etc. ![]() Now we will see uuid3() and uuid5() where we saw a generation of UUID using random numbers now we will see how to generate UUIDs using names instead of random numbers using uuid3() and uuid5() which uses cryptographic hash values such as MD5 or SHA-1 to combine values with the names like hostnames, URLs, etc. The uuid4() generates id using cryptographically secure random number generators hence there is less chance of collision. In the above program, we can see a unique id is generated using uuid4(). Print ("The unique id generated using uuid4() function : ") ![]() Print("Program to demonstrate uuid4() function:") Let us see a simple example of implementing this uuid4() function. So as we saw uuid1() is not safe to use and can compromise privacy and now we will see uuid4() which will not compromise privacy as it uses a pseudo-random number generator to generate unique identifiers. The above statement will output the MAC value in hexadecimal value and if this getnode() method fails to display the mAC address then it will by default return a 48-bit number along with the multicast bit. Say for example print(hex(uuid.getnode())) We can compute these function values using the MAC address of the host and this can be done using the getnode() method of UUID module which will display the MAC value of a given system. In the above program, we can see the uuid1() function is used which generates the host id, the sequence number is displayed. Print("UUID of version one is as follows", uuid_version_1) Print("Progam to demonstrate uuid1() function:") Example #1īut we should note that when using uuid1() it might display network details such as the network address of the computer in UUID so it is not so safe to use uuid1() as it may arise privacy problems because it uses the systems MAC address. We will also see how the UUID looks like which means the structure of UUID. In the below section let us see a few examples of the use of function uuid1(), uuid3(), uuid4() and uuid5() using Python UUID module which is mainly used for generating UUID using MAC address.
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