A high-speed space-time computing platform

Abstract

The invention discloses a high-speed space-time computing platform, which includes a storage module, an FPGA parallel array module and an external interface computer, and the storage module and the FPGA parallel array module are connected to the external interface computer; The results are compressed and stored, and SSDs are used to query the collision points in parallel; the FPGA parallel array module is used to distribute encryption to each individual FPGA chip in parallel, and to find the collision point of the rainbow table through multiple FPGA chips running in parallel; the external interface computer is used to The way of socket provides the deciphering of MD5, Sha1, Sha256 and DES. The present invention combines many years of experience in password deciphering, on the basis of the existing FPGA parallel array module, adopts the rainbow table processing scheme, develops a high-speed space-time computing platform, adopts a time-space balance mode for password deciphering, and quickly deciphers the plaintext of the password within a certain range. Assist the security department to quickly obtain evidence and handle cases.

Description

technical field [0001] The invention belongs to the field of communication, and in particular relates to a high-speed space-time computing platform. Background technique [0002] In terms of password storage and information transmission, most of the current systems use hash transformation storage of plaintext passwords, such as md5, sha1, sha256, and DES processing of plaintext. In the security field, it is often necessary to quickly obtain passwords based on known password databases The processing of its password plain text. As far as the current computing power is concerned, it is difficult to decipher the password by exhaustive calculation in a short period of time. As far as the current storage capacity is concerned, it is also difficult to store the pre-calculated results within a certain range, and then rely on collision to decipher the password; And if the timeliness of deciphering the password is not good, even if it can be deciphered, it has no practical significan...

AI Technical Summary

Problems solved by technology

As far as the current computing power is concerned, it is difficult to decipher the password by exhaustive calculation in a short period of time. As far as the current storage capacity is concerned, it is also difficult to store the pre-calculated results within a certain range, and then rely on collision to decipher the password; And if the timeliness of deciphering the password is not good, even if it can be deciphered, it has no practical significance

[0003] At present, one way to decipher md5, sha1, sha256, and DES encryption results is to use pure GPU and a single FPGA high-speed calculation method. Due to the influence of computing power, the deciphering speed will be very slow, often requiring hundreds of hours, which is difficult to meet the requirements of fast forensics. demand; one is the method of renting Tianhe computer, which is more efficient, but it takes several hours. At the same time, the rental fee is high, and it must be offline, which is far from the actual application scenario and can only meet special individual cases. needs

In addition, there is also the use of pre-calculation to hash or encrypt passwords within a known range, and pre-store them, but this method can only handle passwords within a small range, and once the password exceeds the range, there is nothing to do

[0004] In summary, the existing technology has the following defects: 1. Slow deciphering speed; 2. Small coverage; 3. High cost; 4. Poor real-time performance; 5. Complicated operating procedures

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