Perancangan Aplikasi Duplicate PDF Scanner Menerapkan Algoritma MD2
DOI:
https://doi.org/10.47065/jieee.v2i2.387Keywords:
Duplicate; Message Digest; Verification; MD2Abstract
We are now in the era of the digital world. Many industries have switched to digital technology such as photos, videos, music, and so on. Of course, this change brings many benefits for us in terms of speed and data access. The ease of accessing the internet also has a major impact on human life. The ease of accessing documents online is very helpful if you want to find and download pdf documents online. With this convenience, many of the same pdf files are downloaded more than once. This will definitely burden the storage space. To distinguish one pdf file from another, it is done by viewing and reading the contents of the pdf file. This is very inconvenient and time consuming. To overcome this, we need a practical way that can be used to search for the same pdf document so that it can delete duplicate pdf files. One way that can be used to overcome this problem is to use a hash function, one of the hash functions in cryptography is the MD 2 algorithm or Message Digest 2. By using the hash function, the identity of the pdf file can be generated. If the pdf files are the same it will produce the same hash value as well. This will make it easier to group the same pdf documents so that it will speed up the process of deleting the same pdf files. With the pdf file scanner application, pdf files will be searched for all folders and will group pdf files based on the same hash value. So that it will be easier for users to delete the same pdf file.
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