pki ra

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Android gets the running program and kill it.

Android gets the running program and kill it. Obtain the running program and add it to the adapter class of a listview. The method is as follows: // The public List that is running GetRunningProcess () {pi = new PackagesInfo (this); am = (ActivityManager) getSystemService (ACTIVITY_SERVICE); // get the running application run = am. getRunningAppProcesses (); // obtain the Package Manager. Here, the package name is used to obtain the program icon and program name pm = this. getPackageManage

Build openvpn server in Centos6.5

" Set_varEASYRSA_REQ_EMAIL "503579266@qq.com"Set_varEASYRSA_REQ_OU "MyOpenVPN" 4. Create a server certificate and key (1) initialization [Root @ vpneasyrsa3] # ls Easyrsaopenssl-1.0.cnfvarsvars.examplex509-types [Root @ vpneasyrsa3] # [Root @ vpneasyrsa3] #./easyrsainit-pki Note: using Easy-RSAconfiguration from:./vars Init-pki complete; you may nowcreate a CA or requests.Your newly created

CA Certification knowledge

other parties except the sender and recipient (confidentiality), and that information is not tampered with during transmission (integrity and consistency ); the sender is sure that the recipient is not a fake (the authenticity of the identity and cannot be faked); the sender cannot deny his/her sending behavior (non-repudiation ). (2) Ca ArchitectureThe main tool for CA authentication is the digital certificate issued by the CA center for online job subjects. From the perspective of the roles i

Anti-methionine peptide antibody

Anti-methionine peptide antibody (CCP) is a cyclic poly-protein peptide fragment, is a type of IgG-based antibody, rheumatoid arthritis (RA) has a good sensitivity and specificity, and anti-CCP-positive RA patients with bone damage than anti-CCP antibody negative people serious. Anti-methionine peptide antibody is a kind of rheumatism autoantibodies system, rheumatoid arthritis (

HTTPS protocols and principles

Android and Chrome, has been compiled into Google's open source OpenSSL branch-boring SSL, and Nginx 1.7.4 also supports compiling BORINGSSL. The previously common pattern for packet encryption is AES-CBC, but CBC has been shown to be susceptible to beast and LUCKY13 attacks. The currently recommended packet encryption mode is AES-GCM, but its disadvantage is that it is computationally expensive, with high performance and power consumption, and is not suitable for mobile phones and tablets.3.2

HTTPS practices for large Web sites (i)--HTTPS protocols and principles

encryption is divided into two modes: streaming encryption and packet encryption. Streaming encryption is now commonly used RC4, but RC4 is no longer secure, Microsoft also recommends that the site try not to use RC4 streaming encryption.A new alternative to RC4 's streaming encryption algorithm, called CHACHA20, is the faster and more secure encryption algorithm Google launches. It has been adopted by Android and Chrome, has been compiled into Google's open source OpenSSL branch-boring SSL, an

HTTPS practices for large Web sites (1): HTTPS protocols and principles

encryption and packet encryption. Streaming encryption is now commonly used RC4, but RC4 is no longer secure, Microsoft also recommends that the site try not to use RC4 streaming encryption.A new alternative to RC4 's streaming encryption algorithm, called CHACHA20, is the faster and more secure encryption algorithm Google launches. It has been adopted by Android and Chrome, has been compiled into Google's open source OpenSSL branch-boring SSL, and Nginx 1.7.4 also supports compiling BORINGSSL.

Create a simple digital certificate Center

We have briefly introduced the digital certificate and digital certificate authentication center. The CA center is the core component of PKI and the digital certificate is also the basis of PKI. So we will first implement a simple digital certificate authentication center, because I have not created a specific CA center, and I have built a theoretical foundation for future research, I can only understand an

Block chain technology: Some related algorithms of block chain

multiple cryptography means to achieve an all reliable transmission message and identity confirmation of a framework and norms. In General, include the following components: CA (certification authority): Responsible for issuing and invalidating certificates, receiving requests from RA (registration Authority): Authenticating user identities, verifying data legality, registering, auditing When it is approved, it is issued to the CA; Certificate databa

Encrypt/decrypt & build private CAs with OpenSSL

date of the authority, etc. At present, the format and verification methods of certificates generally follow the international standard.Format of the digital certificate (V3):Version number (versions)Serial (serial number): CA is used to uniquely identify this certificate;Signature Algorithm flags (Signature algorithm identifier)The name of the issuer: the name of the CA itself;Validity: Two date, start date and expiry date;Certificate Principal Name: Certificate owner's own nameCertificate pri

Rheumatoid data collection

If you are suspected of rheumatic symptoms, consult a rheumatology specialist rheumatologistDetection:Rheumatoid factor (RF) rheumatoid factorAnti-citrullinated protein antibody (ACPA) anti-citrulline antibodyAmong people with RA, the presence of rheumatoid factor (RF) and/or anti-citrullinated protein antibody (ACPA) is Potenti Al markers of premature mortality.Cause: The interaction of genes with the environmentMany cases is believed to result from

Build an OpenVPN service environment using CentOS

" to "easy-rsa ". Mv easy-rsa-mater/easy-rsa/ Copy the easy-ras folder to the/etc/openvpn/directory. Cp-R easy-rsa // etc/openvpn/ Step 2: edit the vars file and configure it according to your environment A: first go to the/etc/openvpn/easy-rsa/easyrsa3 directory. Cp/etc/openvpn/easy-rsa/easyrsa3/ B: Copy vars. example to vars. Cp vars. example vars C: Modify the following field. Run the command: vi vars, modify it, and finally save the wq. Set_var EASYRSA_REQ_COUNTRY "CN" // chang

Rheumatoid data Collection 2

If you are suspected of rheumatic symptoms, consult a rheumatology specialist rheumatologistDetection:Rheumatoid factor (RF) rheumatoid factorAnti-citrullinated protein antibody (ACPA) anti-citrulline antibodyAmong people with RA, the presence of rheumatoid factor (RF) and/or anti-citrullinated protein antibody (ACPA) is Potenti Al markers of premature mortality.Cause: The interaction of genes with the environmentMany cases is believed to result from

Connect a wireless router to an existing vro to expand the LAN

Reference: http://jingyan.baidu.com/article/9f63fb91f47f94c8400f0e93.html? Qq-PF-To = pcqq. C2C Purpose: if the boss provides a network cable in a rental room and can access the Internet, but wants to connect to wifi via a mobile phone, there are two ways: (1) One way is to install WiFi sharing software (such as sharing genie) on a computer, but the computer needs to be turned on all the time. (2) Buy a wireless router for expansion. The following describes how to use a vro for wireless Internet

Web server/CA certification Authority/Client Access

enter the following ' extra ' attributesTo is sent with your certificate requestA Challenge Password []: An optional company name []: #scp/ROOT/WEB.CSR S2:/root---CA Certification Body------> Sign the S1 signature request WEB.CSR issue generation WEB.CRTS2 is not a CA certification authority nowNeed to first deploy S2 as CA certification AuthorityDeploying CA certification bodies is cumbersome,We use the wrong way to build CA certification bodies,and issue a signature request# OpenSSL ca-in web

Certificate related knowledge

public key encryption is that a key pair replaces a large number of symmetric keys, thus reducing the workload of key management. Digital Certificates further enhance this advantage, which solves the issue of public key distribution and management. However, digital certificates cannot be managed by themselves. Due to the inherent widespread distribution of digital certificates, the distribution of digital certificates must be taken into account when designing management schemes for these certif

Encrypting and decrypting principle and building your own CA based on OpenSSL

sameCheck the validity period of a certificateCheck if the certificate has been revokedThe PKI consists of the following and parts:CA: Visa authoritiesRA: Registration AuthorityCRL: Certificate revocation ListCertificate Access LibraryCA is the core of PKI, responsible for issuing, certification, management has issued certificates;The current Universal Certificate format standard is zero , which defines th

CentOS 7.2 tutorial on installing MySQL 5.7.10 with Yum

| 2.2 MB 00:00:05mysql-community-client-5.7.10-1.el7.x86_64.rpm | MB 00:00:41Warning:/var/cache/yum/x86_64/7/mysql57-community/packages/mysql-community-common-5.7.10-1.el7.x86_64.rpm: Header V3 dsa/sha1 Signature, key ID 5072e1f5:nokey00 ETAPublic key for mysql-community-common-5.7.10-1.el7.x86_64.rpm isn't installedmysql-community-common-5.7.10-1.el7.x86_64.rpm | MB KB 00:00:01Retrieving Key from File:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysqlImporting GP

17 Practical examples of TAR commands in Linux

20 16-09-06 03:55 etc/pki/drwxr-xr-x root/root 0 2016-09-06 03:15 etc/pki/rpm-gpg/-rw-r--r--root/root 1690 2015-12-09 04:59 etc/pki/rpm-gpg/rpm-gpg-key-centos-7-rw-r--r--root/root 1004 2015-12-09 04:59 Etc/pki/rpm-gpg/R Pm-gpg-key-centos-debug-7-rw-r--r--root/root 1690 2015-12-09 04:59 etc/

HTTPS practices for large Web sites (i)--HTTPS protocols and principles

: streaming encryption and packet encryption. Streaming encryption is now commonly used RC4 , but is RC4 no longer secure, Microsoft also recommends that the site try not to use RC4 streaming encryption.A new alternative RC4 to the streaming encryption algorithm called ChaCha20 , it is Google introduced faster, more secure encryption algorithm. It has been adopted by Android and Chrome, has been compiled into Google's open source OpenSSL branch-boring SSL, and Nginx 1.7.4 also supports compiling

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