Can two different files have the same MD5?

Generally, two files can have the same md5 hash only if their contents are exactly the same. Even a single bit of variation will generate a completely different hash value. There is one caveat, though: An md5 sum is 128 bits (16 bytes).

Can two different files have same sha1?

No they don’t. If you think about it, sha1 output has 160 bits. There are more than 2^160 possible files, therefore there must be multiple (infinitely many) potential files that have the same hashes.

Can two different files have same checksum?

MD5 is frequently used to compute checksums because it is computationally unlikely that two different files will ever have the same checksum. If you have 65,000 files to compare, however, the chance that two of them have the same checksum, though different, is quite high.

Which is better MD5 or SHA1?

The MD5 and SHA1 are the hashing algorithms where MD5 is better than SHA in terms of speed. However, SHA1 is more secure as compared to MD5. The concept behind these hashing algorithms is that these are used to generate a unique digital fingerprint of data or message which is known as a hash or digest.

Is MD5 always the same?

Yes, MD5 always outputs the same given the same input. That’s how it’s used for passwords. You store the hash in the database, then when the user types their password in, it’s hashed again and the two hashes are compared. NOTE: MD5 is not recommended for hashing passwords because it’s cryptographically weak.

How do I make two files with MD5 hash?

1 Answer

1. Compress the files and generate the md5 hash from that file.
2. Generate multiple md5 hashes and join them using an algorithm that always ensures the same value is produced from the hashes each time. For example concatenate the hashes or create an md5 hash of all the md5 hashes.

What is the correct term for when two different files are hashed and result in the same output?

If two different files produce the same unique hash value this is called a collision and it makes the algorithm essentially useless. Last year, Google created a collision with the SHA-1 hashing algorithm to demonstrate that it’s vulnerable.

Can 2 files have same SHA256?

We use SHA-256 because this 256-bit key is much more secure than other common hashing algorithms. Collisions are incredibly unlikely: There are 2256 possible hash values when using SHA-256, which makes it nearly impossible for two different documents to coincidentally have the exact same hash value.

Can two files have same SHA256?

Yes. Two different strings can absolutely give the same SHA256.

What are the differences between the MD5 and SHA-1 algorithms?

Both MD5 stands for Message Digest and SHA1 stands for Secure Hash Algorithm square measure the hashing algorithms wherever The speed of MD5 is fast in comparison of SHA1’s speed….Difference between MD5 and SHA1.

S.NO	MD5	SHA1
2.	MD5 can have 128 bits length of message digest.	Whereas SHA1 can have 160 bits length of message digest.

Is MD5 secure for checksum?

Although MD5 was initially designed to be used as a cryptographic hash function, it has been found to suffer from extensive vulnerabilities. It can still be used as a checksum to verify data integrity, but only against unintentional corruption.

Can two files have the same MD5 hash value?

Though it is still a low-probability event, it can be done. However, in your case, I’d suspect a mistake in copying the files. Generally, two files can have the same md5 hash only if their contents are exactly the same. Even a single bit of variation will generate a completely different hash value.

Can MD5 be used as a checksum?

MD5 is not used for such things, it is usually used as a checksum to determine if something has been changed (it’s just a hash). It would be very unlikely that the same data could be changed and produce the same MD5 checksum again. – Mladen B.

Can two files have the same MD5 sum?

Since the number of different possible file contents is infinite, and the number of different possible md5 sums is finite, there is a possibility (though small probability in most cases) of collision of hashes. In other words, two different files can produce the same sum when hashed with md5.

Why does MD5 have more than one possible output?

In other words, two different files can produce the same sum when hashed with md5. Because of this, it’s better in some cases to use a higher bit hash (more possible different outputs), to reduce the (already low) probability of an accidental hash collision, and increase the difficulty of creating a deliberate hash collision through brute force.