Per 
Item #: SCP-XXXX
Object Class: Safe Euclid
Special Containment Procedures: Multiple Foundation web crawlers are to monitor new instances of SCP-XXXX domains and IP addresses and report them in order to be blocked from all internet service providers. All forum posts or download links concerning instances of SCP-XXXX-1 must be found and removed by Mobile Task Force Mu-4 ("Debuggers").
Samples of SCP-XXXX-1's are to be stored on a secure Foundation server. Access to these files is restricted to Level 3 and above researchers.
Update: Due to the nature of SCP-XXXX-1-C and the danger it poses to modern cryptography, SCP-XXXX has been reclassified to Euclid, research must also be conducted to develop new cryptographically secure hashing functions.
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| SCP-XXXX homepage |
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Description: SCP-XXXX is a website originally located at the domain "www.█████████.██" pointing to the IP address ███.██.███.███. No such domain record can be found at any registrar, neither can the IP address be traced in it's respective IPv4 block. Blocking access to the domain and address is effective, however since it's discovery the website has been changing location periodically at a random interval.
SCP-XXXX appear to be the homepage of a computer programmer with the nickname "██████", their identity has yet to be found.
The website hosts at the time of writing 4 computer programs (Hereby designated SCP-XXXX-1) allegedly written by the administrator of the website. All instances of SCP-XXXX-1 exhibit anomalous properties, with their execution time being significantly lower than expected with our current scientific knowledge, and the inability to analyze their functioning.
SCP-XXXX-1-A: A console application that print a continuous sequence of bytes. Samples of the output bytes have an average score of 99.998% on the Rademacher-Darski randomness test, making it a practically true random number generator.
It is unknown how SCP-XXXX-1-A generates its output or where it gets its source of entropy.
Usage of SCP-XXXX-1-A by the Foundation's cryptography department is currently under review.
SCP-XXXX-1-B: A program that display a black screen with a blinking white cursor, upon entering an input and hitting the enter key, the program will immediately close.
If the input is an integer, the program will also create a file named "prime.txt" in the same directory where it's located, containing the Nth prime number, with N being the integer input.
Note from Dr. ██████: You mean this thing can output the nth prime number in constant time? This is bull████
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| Screen capture of SCP-XXXX-1-C |
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SCP-XXXX-1-C: A Windows application entitled "Hash cracker v1.0". Its interface consists of a text input, a button and a "algorihtm[sic]" drop-down list containing all currently known cryptographic hashing algorithms.
Upon entering a valid "digest" in the text input, selecting the proper hashing function and pressing the button, the program will instantly return the original input of the digest in binary format.
It is currently unknown how SCP-XXXX-1-C manages to "inverse" the hashing functions. All attempts to reverse engineer SCP-XXXX-1-C to understand its nature have been met with failure, with either the operating system running it crashing or the computer used immediately shutting down.
Addendum: Usage of SCP-XXXX-1-C to crack cryptocurrencies private keys is strictly prohibited and will result in disciplinary action.
SCP-XXXX-1-D: Á €?è@?âÃunexpected end of file
