Sort: Rank

Ways to Use Certificate to Authentication
What are the ways to use certificate for authentication? Can certificates be used to secure Web sites, secure network servers, secure client machines and secure user log in access? Authentication is crucial to secure and reliable communication. Each party to a communication must be able to prove the...
2017-08-21, 7594👍, 6💬

💬 2017-08-15 FYIcenter.com: @Kawa, expired certificates are useless. You should ask owners to send you newer ones to replace them.

💬 2017-08-13 Kawa: Hi. Found certificates wich arenot valid annymore. Some are valid until 2015 or before. Do i need them?

💬 2014-02-21 FYIcenter.com: Hi Jacinta, you don't need to have your own certificate on your phone to protect you using Websites. The server will have certif...

(More comments ...)

What Is a JKS (Java KeyStore) File
What is a JKS file? I heard that it is used to provide CA certificates to Java applications. A JKS (Java KeyStore) file is a specially formatted file used to store cryptographic keys and certificates. A Java KeyStore file can be used to store 3 types of entries: 1. PrivateKeyEntry - This type of ent...
2016-10-05, 3892👍, 1💬

💬 2016-10-05 Saddam sikdar: I want this certificate To download my whatsup

File Name Extensions Used for Certificates
What are file name extensions used for certificates? I see .cer files on my Windows computer. Most commonly used file name extensions for X.509 certificates are: .cer - Used for certificate files in binary DER format. Could also be used for certificate files in text PEM format. .crt - Used for certi...
2016-06-26, 2361👍, 2💬

💬 2013-05-10 FYIcenter.com: Hi Sheikh, Delete as many as you can...

💬 2013-05-08 sheikh aabid: my mobile software was crowed

What Is PKCS #7
What is PKCS (Public-Key Cryptography Standards) #7? What is it used for? PKCS (Public-Key Cryptography Standards) #7 is a standard, RFC 2315, from the PKCS series; defines a syntax for data that may have cryptography applied to it, such as for digital signatures and digital envelopes. PKCS #7 can b...
2013-12-30, 2517👍, 0💬

What Is PKCS #12
What is PKCS (Public-Key Cryptography Standards) #12? What is it used for? PKCS #12 defines an archive file format for storing many cryptography objects as a single file. It is commonly used to bundle a private key with its X.509 certificate or to bundle all the members of a chain of trust. A PKCS #...
2013-12-25, 2437👍, 0💬

What Is PKI (Public-Key Infrastructure)
What is PKI (Public-Key Infrastructure)? Public-Key Infrastructure (PKI) is a public-key cryptography system that enables users to securely communicate on an insecure public network, and reliably verify the identity of a user via digital signatures. The main function of the a PKI system is for the c...
2013-05-03, 2516👍, 0💬

Distinguished Names on Certificates
What are distinguished names on certificates? I see "C=US" on in many certificates. Distinguished Names are used in X.509 certificates to identify entities, such as those which are named by the subject and issuer (signer) fields. The X.509 standard defines the following fields for Distinguished Name...
2013-05-02, 2730👍, 0💬

Example of X.509 Certificate Data Structure
Can you show me an example of X.509 certificate data structure? Here is an example of X.509 Version 3 certificate data structure: Certificate: Data: Version: 3 (0x2) Serial Number: 1 (0x1) Signature Algorithm: md5WithRSAEncryption Issuer: C=ZA, ST=Western Cape, L=Cape Town, O=Thawte Consulting cc, O...
2013-05-01, 2410👍, 0💬

What Is the Structure of Certificates
What is the structure of certificates? What types of values are recorded in a certificate? The structure of an X.509 Version 3 certificate is defined in RFC 5280 - "Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile". It contains the following values: ...
2013-05-01, 2246👍, 0💬

File Name Extensions Used for Certificates
What are file name extensions used for certificates? I see .cer files on my Windows computer. Most commonly used file name extensions for X.509 certificates are: .cer - Used for certificate files in binary DER format. Could also be used for certificate files in text PEM format. .crt - Used for certi...
2012-07-25, 3318👍, 0💬

Distinguished Names on Certificates
What are distinguished names on certificates? I see "C=US" on in many certificates. Distinguished Names are used in X.509 certificates to identify entities, such as those which are named by the subject and issuer (signer) fields. The X.509 standard defines the following fields for Distinguished Name...
2012-07-25, 3023👍, 0💬

What Is PKI (Public-Key Infrastructure)
What is PKI (Public-Key Infrastructure)? Public-Key Infrastructure (PKI) is a public-key cryptography system that enables users to securely communicate on an insecure public network, and reliably verify the identity of a user via digital signatures. The main function of the a PKI system is for the c...
2012-07-25, 2775👍, 0💬

What Is Java Keystore File
What is a Java Keystore file? I heard that it used to provide CA certificates to Java applications. A Java Keystore file is a specially formatted file used to store cryptographic keys and certificates. A Java KeyStore file can be used to store 3 types of entries: 1. PrivateKeyEntry - This type of en...
2012-07-24, 4082👍, 0💬

Example of X.509 Certificate Data Structure
Can you show me an example of X.509 certificate data structure? Here is an example of X.509 Version 3 certificate data structure: Certificate: Data: Version: 3 (0x2) Serial Number: 1 (0x1) Signature Algorithm: md5WithRSAEncryption Issuer: C=ZA, ST=Western Cape, L=Cape Town, O=Thawte Consulting cc, O...
2012-07-24, 2970👍, 0💬

What Is the Structure of Certificates
What is the structure of certificates? What types of values are recorded in a certificate? The structure of an X.509 Version 3 certificate is defined in RFC 5280 - "Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile". It contains the following values: ...
2012-07-24, 2698👍, 0💬

Ways to Use Certificate for Encryption
What are the ways to use certificate for encryption? Can certificates be used to secure data submitted to Web sites, secure data received from Web sites, secure emails, and secure files stored on computers? Communications over a network, such as the Internet, are subject to possible monitoring by un...
2012-07-21, 3332👍, 0💬

Certificate File Formats Supported on Windows
What are certificate file formats supported on Windows? Are PKCS#12, PKCS#7, DER are PEM are valid certificate file formats on Windows? Certificate import and export operations support four file formats on Windows systems. Choose the format that meets your specific requirements. Personal Information...
2012-07-19, 3212👍, 0💬

What Are Public and Private Keys
What are public and private keys? Are they related to each other? In public key encryption, two different keys are used to encrypt and decrypt information. The private key is a key that is known only to its owner, while the public key can be made known and available to other entities on the network....
2012-07-19, 2857👍, 0💬

What Is the Digital Signature on a Certificate
What is the digital signature on a certificate? Who signs a certificate? What can be validated on a certificate? Digital certificates are electronic credentials that are used to certify the identities of individuals, computers, and other entities on a network. Digital certificates function similarly...
2012-07-13, 3020👍, 0💬

What Is the Usage of Certificates
What is the usage of certificates? Can certificates be used for authentication, privacy protection, encryption, and digital signature? Certificates can be used for: Authentication, which verifies the identity of someone or something. Privacy, which ensures that information is only available to the i...
2012-07-13, 3523👍, 0💬

What Is Certificate
What is an Internet security certificate? What is a public key certificate? What is an X.509 certificate? What is a digital certificate? What is a certificate? Are they all the same thing? A public key certificate, usually just called a certificate, is a digitally signed statement that binds the val...
2012-07-13, 3141👍, 0💬

  Sort: Rank