Hashing An MD5 hash is 128 bits. A SHA1 hash is 160 bits. A sha256 hash is 256 b
ID: 3742391 • Letter: H
Question
Hashing
An MD5 hash is 128 bits.
A SHA1 hash is 160 bits.
A sha256 hash is 256 bits.
A sha384 hash is 384 bits.
A sha512 hash is 512 bits.
Discuss some of the different types of hashes and indicate some good hashing tools for Linux and Windows. Are they command line tools or GUI tools? What does a hash prove? Why are hashes often used for download links? Here is a list of some hashes. You may elect to see if you can identify the name of the files associated with these hashes and explain what these files do as part of the discussion.
53245DB399AE003E82FDECB0871E66D3
E72A495A8E4AF5D09B9400CAF014D3D7
E0FB946C00B140693E3CF5DE258C22A1
57F0839433234285CC9DF96198A6CA58248A4707
9FBFE673241D831242219F158720DE3D
B32189BDFF6E577A92BAA61AD49264E6
3B1333F826E5FE36395042FE0F1B895F4A373F1B
899BCDA15D5D03A968373B7081D9121F
D3F39F5D391E9D2CE7EF8D11C429D0A3
Explanation / Answer
Different Types of Hashes
Hashing tools
IgorWare Hasher: SMall and portable Windows GUI tool that is able to calculate SHA1, MD5 and CRC32 values from any file. It can save the hashes in files for later verification.
HashMyFiles: It is targeted mainly towards batch processing of hashes, so you can add single or multiple files. This program can display hashes for CRC32, MD5 and the SHA family (SHA1, SHA256, SHA384 and SHA512). It is a Windows GUI tool.
Linux Native CLI Hashing tools:
What does a hash prove?
A hash function is a function used to map data of arbitrary size to data of fixed size, known as hashing. And the fixed data is known as hash values. A good hash algorithm will handle the collisions uniformly. The hash of a file is like its signature. Any change or tamper to the file will change its hash and thus we can detect tampering. It proves that the file wasn't tampered. We cannot get the original message from the hash.
Why are hashes used for download links?
Checksums or hashes are used while downloading files to check data integrity and tampering. They are used to perform data integrity checks on files, because even successful file downloads contain errors. This is done in two steps:
Generation of Checksum: When a file is stored on the server, a checksum is generated and stored for firther use and to display tto users.
Integrity Check: After the file is downloaded from the server, a checksum is again generated for the file using the same hashing algorithm. It is matches then the downloaded file is free from errors. If it doesn't match then it contains errors or has been tampered and we need to download it again.
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