High-speed time-space computing platform

Abstract

The invention discloses a high-speed time-space computing platform. The platform comprises a storage module, an FPGA parallel array module and an external interface computer, wherein the storage module and the FPGA parallel array module are both connected to the external interface computer; the storage module is used for compressing and storing a pre-computed result in the form of a rainbow tableand parallelly querying impact points through an SSD; the FPGA parallel array module is used for parallelly distributing encryption to each independent FPGA chip, and the impact points in the rainbowtable are searched for through parallel running of multiple FPGA chips; and the external interface computer is used for providing decoding of MD5, Sha1, Sha256 and a DES in a socket mode. According tothe platform, a rainbow table processing scheme is adopted to research and develop the high-speed time-space computing platform on the basis of an existing result FPGA parallel array module in combination with multiple years of password decoding experience, a time-space balance mode is adopted for password decoding, a password plaintext is quickly decoded within a certain range, and a security department is assisted in quickly obtaining evidence and handling a case.

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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