CN108897624B - Encryption calculation method and device for HTTPS server - Google Patents
Encryption calculation method and device for HTTPS server Download PDFInfo
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- CN108897624B CN108897624B CN201810735629.9A CN201810735629A CN108897624B CN 108897624 B CN108897624 B CN 108897624B CN 201810735629 A CN201810735629 A CN 201810735629A CN 108897624 B CN108897624 B CN 108897624B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
- G06F9/5038—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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Abstract
The application provides an encryption calculation method of an HTTPS server, which is applied to an Nginx server and comprises the following steps: judging whether the current time is in the CPU application time period or not; if yes, distributing at least one encryption calculation task to the QAT card and the CPU respectively, and enabling the QAT card and the CPU to execute the respective encryption calculation tasks respectively; if not, distributing the encryption calculation task to the QAT card, and enabling the QAT card to execute the encryption calculation task. The invention avoids the problems of low QAT card processing speed and CPU resource waste caused by the fact that the QAT card is busy and only the QAT card is used for executing the encryption calculation task when the CPU is idle in the prior art, effectively utilizes the CPU resource and improves the processing efficiency of the encryption calculation task.
Description
Technical Field
The invention relates to the technical field of computers, in particular to an encryption calculation method and device of an HTTPS server.
Background
HTTPs (hyper Text Transfer protocol Secure Socket layer), which is an HTTP channel targeted for security, is a Secure version of HTTP.
For the server, an important problem in HTTPS deployment is the computation of symmetric and asymmetric cryptographic algorithms. The computation of encryption algorithms consumes a lot of computing resources and therefore typically deals with it using special hardware, such as the quickassist technology card (QAT card for short) from INTEL corporation. Taking the currently used application layer Nginx server as an example, the Nginx server has a ssl-engine module, and when the Nginx server needs to perform encryption calculation, the ssl-engine module is read, and the module issues a calculation task to the QAT card and uses QAT for processing.
However, in actual operation, there is a problem that: in the busy period of the QAT card, even under the condition that a CPU is idle, the ssl-engine module still gives all the calculation tasks to the QAT card for processing; the QAT is already busy, and the processing capacity is not as good as that of the CPU at that time, so that the processing speed of the encryption calculation task becomes slow.
Disclosure of Invention
In view of the above, the present invention discloses an encryption calculation method and device for an HTTPS server, which uses a CPU and a QAT card to process an encryption calculation task together in a suitable time period, thereby improving the processing efficiency of the encryption calculation task.
In order to achieve the above purpose, the invention provides the following specific technical scheme:
an encryption calculation method of an HTTPS server is applied to an Nginx server, and comprises the following steps:
judging whether the current time is in the CPU application time period or not;
if yes, distributing at least one encryption calculation task to the QAT card and the CPU respectively, and enabling the QAT card and the CPU to execute the respective encryption calculation tasks respectively;
if not, distributing the encryption calculation task to the QAT card, and enabling the QAT card to execute the encryption calculation task.
Optionally, the method further includes:
and determining the applicable time period of the CPU according to the historical log of the HTTPS server of the application layer and the historical monitoring log of the physical layer.
Optionally, the determining, according to the history log of the application layer HTTPS server and the history monitoring log of the physical layer, the CPU applicable period includes:
determining a preset number of QAT card busy time periods according to historical logs of an HTTPS server of an application layer;
according to historical monitoring logs of a physical layer, determining QAT card busy time periods meeting first preset conditions as CPU applicable time periods in QAT card busy time periods of preset quantity, wherein the first preset conditions are that the utilization rates of a CPU in time exceeding a first preset proportion are all lower than a first preset value.
Optionally, the distributing the encryption calculation tasks to the QAT card and the CPU respectively includes:
judging whether the utilization rate of the CPU in N continuous unit time periods meets a second preset condition, wherein the second preset condition is that the utilization rate of the CPU in the time exceeding a second preset proportion in each unit time period is lower than a second preset value;
if yes, judging whether an encryption calculation task processing queue is empty, wherein the encryption calculation task processing queue is used for storing encryption calculation tasks distributed to a CPU;
and if the number of the encryption calculation tasks is empty, respectively distributing the encryption calculation tasks to the QAT card and the CPU according to a third preset proportion, wherein the encryption calculation tasks distributed to the CPU are put into the encryption calculation task processing queue.
Optionally, the method further includes:
and when the utilization rate of the CPU in the continuous N unit time periods does not meet a second preset condition or the encryption calculation task processing queue is not empty, the encryption calculation task is not distributed to the CPU.
A cryptographic computing device of an HTTPS server, comprising:
the judging unit is used for judging whether the current time is in the CPU application time interval or not;
if yes, triggering a first distribution unit for respectively distributing at least one encryption calculation task to the QAT card and the CPU, so that the QAT card and the CPU respectively execute the respective encryption calculation tasks;
if not, triggering a second distribution unit for distributing the encryption calculation task to the QAT card so that the QAT card executes the encryption calculation task.
Optionally, the apparatus further comprises:
and the determining unit is used for determining the CPU application time period according to the historical log of the application layer HTTPS server and the historical monitoring log of the physical layer.
Optionally, the determining unit is specifically configured to: determining a preset number of QAT card busy time periods according to historical logs of an HTTPS server of an application layer; according to historical monitoring logs of a physical layer, determining QAT card busy time periods meeting first preset conditions as CPU applicable time periods in QAT card busy time periods of preset quantity, wherein the first preset conditions are that the utilization rates of a CPU in time exceeding a first preset proportion are all lower than a first preset value.
Optionally, the first allocation unit is specifically configured to: judging whether the utilization rate of the CPU in N continuous unit time periods meets a second preset condition, wherein the second preset condition is that the utilization rate of the CPU in the time exceeding a second preset proportion in each unit time period is lower than a second preset value; if yes, judging whether an encryption calculation task processing queue is empty, wherein the encryption calculation task processing queue is used for storing encryption calculation tasks distributed to a CPU; and if the number of the encryption calculation tasks is empty, respectively distributing the encryption calculation tasks to the QAT card and the CPU according to a third preset proportion, wherein the encryption calculation tasks distributed to the CPU are put into the encryption calculation task processing queue.
Optionally, the first allocating unit is further configured to not allocate the cryptographic calculation task to the CPU when the usage rate of the CPU in the consecutive N unit time periods does not satisfy the second preset condition, or the cryptographic calculation task processing queue is not empty.
Compared with the prior art, the invention has the following beneficial effects:
the encryption calculation method and the encryption calculation device of the HTTPS server disclosed by the invention have the advantages that the QAT card and the CPU are used for executing the encryption calculation task together in the applicable period of the CPU, so that the problems of low QAT card processing speed and CPU resource waste caused by the fact that the QAT card is busy and the CPU is only used for executing the encryption calculation task when the CPU is idle in the prior art are solved, the CPU resource is effectively utilized, and the processing efficiency of the encryption calculation task is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of an encryption calculation method of an HTTPS server according to an embodiment of the present invention;
fig. 2 is a flowchart of another encryption calculation method of an HTTPS server according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of CPU information in a proc/stat disclosed in the embodiments of the present invention;
fig. 4 is a schematic structural diagram of an encryption computing device of an HTTPS server according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present embodiment discloses an encryption calculation method for an HTTPS server, which is applied to an Nginx server, and specifically to an ssl-engine module of the Nginx server, and specifically includes the following steps:
s101: judging whether the current time is in the CPU application time period or not;
the current time is the time when the cryptographic calculation task is received.
It should be noted that the CPU application period is a fixed time in a time period of one day, one week, and the like, and the CPU application period indicates a time period in which the QAT card is busy and the CPU is idle.
Before judging whether the current computing cycle is in the CPU applicable time period, the CPU applicable time period needs to be determined according to the historical log of the application layer HTTPS server and the historical monitoring log of the physical layer.
Specifically, a preset number of QAT card busy time periods are determined according to historical logs of an HTTPS server of an application layer; according to historical monitoring logs of a physical layer, determining the QAT busy time period meeting a first preset condition in the QAT busy time periods of a preset number of QAT cards as a CPU application time period, wherein the first preset condition is that the utilization rates of the CPU are all lower than a first preset value within the time exceeding a first preset proportion.
Since the function of the QAT card is to handle the cryptographic computation task of the HTTPS, the time period when the HTTPS connection of the server is the most may be considered as the time period when the QAT card computes the most, i.e., the QAT busy time period.
Specifically, each line of the history log of the application layer HTTPS server may be considered to process one HTTPS encryption calculation task, the history log of the application layer HTTPS server is counted with a certain time interval as a statistical granularity (e.g., 1 hour), a time period with the maximum number of log lines is found, and the time period is used as a preset number of QAT card busy time period in one day, where the preset number is preset, for example, set to 3.
The utilization rates of the CPU in different times can be obtained through the historical monitoring log of the physical layer, where the first preset condition is that the utilization rates of the CPU in the time exceeding a first preset proportion are all lower than a first preset value, and for example, the utilization rates of the CPU in the case exceeding 95% are all lower than 50%.
If yes, executing S102: distributing at least one encryption calculation task to the QAT card and the CPU respectively, so that the QAT card and the CPU execute the respective encryption calculation tasks respectively;
specifically, a ssl-engine module in the Nginx server actively starts a process to generate an encryption calculation task processing queue, an encryption calculation task allocated to the CPU is placed in the encryption calculation task processing queue, the operating system obtains the encryption calculation task from the encryption calculation task processing queue, automatically determines to obtain the encryption calculation task according to the state of the CPU, then gives the encryption calculation task to the CPU for processing, and returns a result.
If not, executing S103: and distributing the encryption calculation task to the QAT card to enable the QAT card to execute the encryption calculation task.
According to the encryption calculation method of the HTTPS server, the QAT card and the CPU are used for executing the encryption calculation task together in the applicable period of the CPU, the problems that in the prior art, when the QAT card is busy and the CPU is idle, the QAT card is only used for executing the encryption calculation task, the QAT card processing speed is low, and the CPU resource is wasted are solved, the CPU resource is effectively utilized, and the processing efficiency of the encryption calculation task is improved.
In order to more accurately determine whether the current CPU is suitable for executing the cryptographic calculation task, when the current calculation cycle is in the CPU applicable period, the cryptographic calculation task is not immediately allocated to the CPU, but the usage rate of the CPU is further detected, specifically, this embodiment discloses another cryptographic calculation method for an HTTPS server, and please refer to fig. 2, where the method specifically includes the following steps:
s201: judging whether the current time is in the CPU application time period or not;
if not, S202: and distributing the encryption calculation task to the QAT card to enable the QAT card to execute the encryption calculation task.
If yes, S203: judging whether the utilization rate of the CPU in N continuous unit time periods meets a second preset condition or not;
the second preset condition is that the utilization rate of the CPU in the time exceeding a second preset proportion in each unit time period is lower than a second preset value, for example, the utilization rate of the CPU in the time exceeding 95% in each unit time period is lower than 30% in continuous 100 unit time periods.
Referring to fig. 3, fig. 3 is a schematic diagram of CPU information in the proc/stat, where the proc/stat is a file path and a file name in the Linux system, and the CPU utilization can be calculated by reading the CPU information in the proc/stat.
Specifically, two very short time points, denoted as t1 and t2, are taken, and the first row of information in each time point/proc/stat is read. Let s1 be the sum of all values in the first row of t1, s2 be the sum of all values in the first row of t2, and total be s2-s 1. In addition, i1 is the value of the fourth column in the first row in t1, i2 is the value of the fourth column in the first row in t2, and idle is i2-i 1. The CPU utilization q (total-idle)/total.
If not, S204: not distributing encryption calculation tasks to the CPU;
if yes, S205: judging whether the encryption calculation task processing queue is empty or not;
the encryption calculation task processing queue is used for storing encryption calculation tasks distributed to the CPU.
If not, executing S204;
if empty, S206: and respectively distributing encryption calculation tasks to the QAT card and the CPU according to a third preset proportion, wherein the encryption calculation tasks distributed to the CPU are put into the encryption calculation task processing queue.
The third preset ratio may be 1: w, W may be set to 20, i.e., the encryption calculation tasks are distributed to the QAT card and the CPU in a 1:20 ratio.
It should be further noted that the encryption calculation method of the HTTPS server further includes: and monitoring the number of the tasks in the encryption calculation task processing queue, and when the tasks still exist in the encryption calculation task processing queue, not putting the encryption calculation tasks into the encryption calculation task processing queue in the unit time period.
In the encryption method for the HTTPS server disclosed in this embodiment, whether the usage rate of the CPU meets the requirement is determined by determining whether the current computing cycle is in the CPU applicable period, and whether the encryption computing task processing queue is empty is determined, and whether the current computing cycle is that the QAT card is busy and the CPU is idle is accurately determined, so that the encryption computing task is executed efficiently.
Referring to fig. 4, the present embodiment discloses an encryption calculation method for an HTTPS server according to the foregoing embodiment, which correspondingly discloses an encryption calculation apparatus for an HTTPS server, including:
a determining unit 401, configured to determine whether a current time is in a CPU applicable period;
if yes, triggering a first distributing unit 402 for distributing at least one encryption computing task to the QAT card and the CPU respectively, so that the QAT card and the CPU execute the respective encryption computing tasks respectively;
if not, a second assigning unit 403 is triggered for assigning the encryption calculation task to the QAT card, so that the QAT card performs the encryption calculation task.
Optionally, the apparatus further comprises:
and the determining unit is used for determining the CPU application time period according to the historical log of the application layer HTTPS server and the historical monitoring log of the physical layer.
Optionally, the determining unit is specifically configured to: determining a preset number of QAT card busy time periods according to historical logs of an HTTPS server of an application layer; according to historical monitoring logs of a physical layer, determining QAT card busy time periods meeting first preset conditions as CPU applicable time periods in QAT card busy time periods of preset quantity, wherein the first preset conditions are that the utilization rates of a CPU in time exceeding a first preset proportion are all lower than a first preset value.
Optionally, the first allocating unit 402 is specifically configured to: judging whether the utilization rate of the CPU in N continuous unit time periods meets a second preset condition, wherein the second preset condition is that the utilization rate of the CPU in the time exceeding a second preset proportion in each unit time period is lower than a second preset value; if yes, judging whether an encryption calculation task processing queue is empty, wherein the encryption calculation task processing queue is used for storing encryption calculation tasks distributed to a CPU; and if the number of the encryption calculation tasks is empty, respectively distributing the encryption calculation tasks to the QAT card and the CPU according to a third preset proportion, wherein the encryption calculation tasks distributed to the CPU are put into the encryption calculation task processing queue.
Optionally, the first allocating unit 402 is further configured to not allocate the cryptographic calculation task to the CPU when the usage rate of the CPU in the consecutive N unit time periods does not satisfy the second preset condition, or the cryptographic calculation task processing queue is not empty.
The encryption computing device of the HTTPS server disclosed in this embodiment realizes improvement of the existing Nginx server, so that the ssl-engine module of the Nginx server can not only allocate an encryption computing task to the QAT card, but also actively start a process to generate an encryption computing task processing queue, and use the QAT card and the CPU to jointly execute the encryption computing task in the CPU application period, and place the encryption computing task allocated to the CPU in the queue. The problems that in the prior art, when the QAT card is busy and the CPU is idle, the QAT card is only used for executing the encryption calculation task, so that the QAT card processing speed is low and the CPU resource is wasted are solved, the CPU resource is effectively utilized, and the processing efficiency of the encryption calculation task is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An encryption calculation method of an HTTPS server is applied to an Nginx server, and comprises the following steps:
determining the applicable time period of the CPU according to the historical log of the HTTPS server of the application layer and the historical monitoring log of the physical layer;
judging whether the current time is in the CPU application time period or not;
if yes, distributing at least one encryption calculation task to the QAT card and the CPU respectively, and enabling the QAT card and the CPU to execute the respective encryption calculation tasks respectively;
if not, distributing the encryption calculation task to the QAT card to enable the QAT card to execute the encryption calculation task;
wherein, the distributing encryption calculation tasks to the QAT card and the CPU respectively comprises:
judging whether the utilization rate of the CPU in N continuous unit time periods meets a second preset condition, wherein the second preset condition is that the utilization rate of the CPU in the time exceeding a second preset proportion in each unit time period is lower than a second preset value;
if yes, judging whether an encryption calculation task processing queue is empty, wherein the encryption calculation task processing queue is used for storing encryption calculation tasks distributed to a CPU;
and if the number of the encryption calculation tasks is empty, respectively distributing the encryption calculation tasks to the QAT card and the CPU according to a third preset proportion, wherein the encryption calculation tasks distributed to the CPU are put into the encryption calculation task processing queue.
2. The method according to claim 1, wherein the determining the CPU applicable period according to the historical log of the application layer HTTPS server and the historical monitoring log of the physical layer comprises:
determining a preset number of QAT card busy time periods according to historical logs of an HTTPS server of an application layer;
according to historical monitoring logs of a physical layer, determining QAT card busy time periods meeting first preset conditions as CPU applicable time periods in QAT card busy time periods of preset quantity, wherein the first preset conditions are that the utilization rates of a CPU in time exceeding a first preset proportion are all lower than a first preset value.
3. The method of claim 1, further comprising:
and when the utilization rate of the CPU in the continuous N unit time periods does not meet a second preset condition or the encryption calculation task processing queue is not empty, the encryption calculation task is not distributed to the CPU.
4. An encryption computing device of an HTTPS server, comprising:
the determining unit is used for determining the applicable time period of the CPU according to the historical log of the HTTPS server of the application layer and the historical monitoring log of the physical layer;
the judging unit is used for judging whether the current time is in the CPU application time interval or not;
if yes, triggering a first distribution unit for respectively distributing at least one encryption calculation task to the QAT card and the CPU, so that the QAT card and the CPU respectively execute the respective encryption calculation tasks;
if not, triggering a second distribution unit for distributing the encryption calculation task to the QAT card to enable the QAT card to execute the encryption calculation task;
wherein the first allocation unit is specifically configured to: judging whether the utilization rate of the CPU in N continuous unit time periods meets a second preset condition, wherein the second preset condition is that the utilization rate of the CPU in the time exceeding a second preset proportion in each unit time period is lower than a second preset value; if yes, judging whether an encryption calculation task processing queue is empty, wherein the encryption calculation task processing queue is used for storing encryption calculation tasks distributed to a CPU; and if the number of the encryption calculation tasks is empty, respectively distributing the encryption calculation tasks to the QAT card and the CPU according to a third preset proportion, wherein the encryption calculation tasks distributed to the CPU are put into the encryption calculation task processing queue.
5. The apparatus according to claim 4, wherein the determining unit is specifically configured to: determining a preset number of QAT card busy time periods according to historical logs of an HTTPS server of an application layer; according to historical monitoring logs of a physical layer, determining QAT card busy time periods meeting first preset conditions as CPU applicable time periods in QAT card busy time periods of preset quantity, wherein the first preset conditions are that the utilization rates of a CPU in time exceeding a first preset proportion are all lower than a first preset value.
6. The apparatus according to claim 4, wherein the first allocating unit is further configured to not allocate the cryptographic calculation task to the CPU when the usage rate of the CPU in the consecutive N unit time periods does not satisfy the second preset condition or the cryptographic calculation task processing queue is not empty.
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| CN101136750A (en) * | 2007-10-15 | 2008-03-05 | 胡祥义 | Network real-name system implementing method |
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| CN101340438A (en) * | 2007-07-03 | 2009-01-07 | 佳能株式会社 | Data processing apparatus and data processing apparatus control method |
| CN105631343A (en) * | 2014-10-29 | 2016-06-01 | 航天信息股份有限公司 | Password operation realization method and device based on encryption card and server |
| CN107395452A (en) * | 2017-06-22 | 2017-11-24 | 重庆大学 | A kind of method for the HTTPS application performances that WebServer is improved using software-hardware synergism technology |
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