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OpenSSL "x509 -x509toreq" - Conver Certificate to CSR
How to convert a certificate to a CSR using OpenSSL "x509" command? I want to generate a CSR with the same information as my existing certificate. You can convert a certificate to a CSR using the OpenSSL "x509 -x509toreq" command as shown below: C:\Users\fyicenter&gt;\loc al\openssl\openssl.exeO... 2018-02-14, ∼9749🔥, 0💬

OpenSSL "ans1parse" - ASN.1 OBJECT IDENTIFIER Field Type
What is ASN.1 OBJECT IDENTIFIER field type? How to specify OBJECT IDENTIFIER field type in OpenSSL "asn1parse" command? ASN.1 OBJECT IDENTIFIER field is a primitive field that can be used to store an Object Identifier (OID) defined in the ASN.1 standard. An OID has 3 equivalent values: short name, l... 2016-09-30, ∼9729🔥, 0💬

OpenSSL Command Option to List All Options
How to list all options that are supported by a specific OpenSSL command? I know the command but I don't remember the options for that command. Interestingly, there is no "-h" option to show all options supported by a specific OpenSSL command. However, if you enter "-h" as an option following a comm... 2012-07-23, ∼9719🔥, 0💬

OpenSSL "ans1parse -genconf" - Configuration File
How to generate a DER file with a configuration file using the OpenSSL "ans1parse" command? You can use the OpenSSL configuration file to define an ASN.1 structure and call OpenSSL "ans1parse -genconf config_file" command to generate a DER file by respecting the following rules: 1. Use "ans1parse -g... 2016-10-15, ∼9666🔥, 0💬

What Is OpenSSL
What is OpenSSL? OpenSSL is a robust, commercial-grade, full-featured, and Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols as well as a full-strength general purpose cryptography library. OpenSSL is maintained by a worldwide commu... 2012-07-22, ∼9654🔥, 0💬

OpenSSL "ca" Command Options
What can I use OpenSSL "ca" command for? What are options supported by the "ca" command? OpenSSL "ca" command is a CA (Certificate Authority) tool. It can be used to sign CSR (Certificate Signing Request) in a variety of forms and generate CRLs. It also maintains a text database of issued certificat... 2016-09-18, ∼9555🔥, 0💬

OpenSSL "rsautl -sign" - RSA Signature Generation
What is the purpose of the OpenSSL "rsautl -sign" command? Can I use it to sign a document? Yes, you can use OpenSSL "rsautl -sign" command to sign a document. But you need other OpenSSL commands to generate a digest from the document first as shown in the following test: C:\Users\fyicenter&gt;d... 2017-04-04, ∼9549🔥, 0💬

OpenSSL "ans1parse" - ASN.1 INTEGER Field Type
What is ASN.1 INTEGER field type? How to specify INTEGER field type in OpenSSL "asn1parse" command? ASN.1 INTEGER field is a primitive field that can be used to store signed integers of any size. To use ASN.1 INTEGER field in OpenSSL "asn1parse" command, you need to remember the following rules: ASN... 2016-09-30, ∼9405🔥, 0💬

OpenSSL "rsautl" Command Options
What can I use OpenSSL "rsautl" command for? What are options supported by the "rsautl" command? OpenSSL "rsautl" command is a utility to sign, verify, encrypt and decrypt data using RSA private key and public key. Here are options supported by the "rsautl" command: C:\Users\fyicenter&gt;\loc al\... 2017-06-16, ∼9273🔥, 0💬

OpenSSL "ans1parse" - ASN.1 IA5STRING Field Type
What is ASN.1 IA5STRING field type? How to specify IA5STRING field type in OpenSSL "asn1parse" command? ASN.1 IA5STRING field is a primitive field that can be used to store IA5 (ISO 646) character strings. IA5 character set is generally equivalent to ASCII character set. To use ASN.1 IA5STRING field... 2016-09-30, ∼8895🔥, 0💬

OpenSSL "ans1parse -genstr" - Single Primitive Field DER File
How to generate a DER file with a single data field using the OpenSSL "ans1parse" command? You can use the OpenSSL "ans1parse -genstr" command to generate a DER file with a single data field. You just need to specify the field type and field value separated by ":". Here are some examples of using "a... 2016-10-15, ∼8890🔥, 0💬

OpenSSL "x509 -pubkey" - Export Public Key"
How to export the public key out from a certificate using OpenSSL "x509" command? You can export the public key out from a certificate using OpenSSL "x509 -pubkey" command as shown below: C:\Users\fyicenter&gt;\loc al\OpenSSL\opensslOpenSSL&gt; x509 -in twitter.crt -pubkey -noout &gt; tw... 2016-10-17, ∼8866🔥, 0💬

ASN.1 Field Types Supported by OpenSSL
What are ASN.1 field types supported by the OpenSSL "ans1parse" command? OpenSSL "ans1parse" command supports the following ASN.1 field types: BOOLEAN, BOOL - This encodes a boolean type. The value string is mandatory and should be TRUE or FALSE. Additionally TRUE, true, Y, y, YES, yes, FALSE, false... 2016-10-15, ∼8846🔥, 0💬

OpenSSL "x509 -pubout" - Export Public Key"
How to calculate the subject key identifier of a certificate uisng OpenSSL commands? I want to see if it matches the "X509v3 Subject Key Identifier" in the certificate. Accoding to the RFC5280 - Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile" , the... 2016-10-17, ∼8715🔥, 0💬

OpenSSL "ca" - "error while loading CRL number"
Why I am getting the "error while loading CRL number" error when running OpenSSL "ca -gencrl" command? If you are running the OpenSSL "ca -gencrl" command installed with the slproweb binary package for Windows, you may get the "error while loading CRL number" error as shown below: C:\Users\fyicenter... 2016-09-10, ∼8712🔥, 0💬

OpenSSL "verify" Command Options
What can I use OpenSSL "verify" command for? What are options supported by the "verify" command? OpenSSL "verify" command is a utility to verify certificates. Here are options supported by the "verify" command: C:\Users\fyicenter&gt;\loc al\openssl\openssl.exeOpenSSL&gt; verify -h usage: ver... 2012-07-24, ∼8420🔥, 0💬

OpenSSL "rsautl" Command for RSA Keys
Where to find tutorials on using OpenSSL "genpkey" and "rsautl" commands for RSA private keys? Here is a collection of tutorials on using OpenSSL "rsautl" command compiled by FYIcenter.com team to encrypt, decrypt, sign or verify data with RSA (Rivest, Shamir and Adleman) public and private keys. Op... 2017-05-29, ∼8203🔥, 0💬

OpenSSL "ans1parse" Command
Where to find tutorials on using OpenSSL "ans1parse" command? Here is a collection of tutorials on using OpenSSL "ans1parse" command compiled by FYIcenter.com team. OpenSSL "ans1parse" Command Options ASN.1 File Structure Supported by OpenSSL ASN.1 Field Types Supported by OpenSSL OpenSSL "ans1parse... 2016-10-17, ∼8177🔥, 0💬

OpenSSL "req -x509 -extensions" - Specify Self-Signed Certificate V3 Extensions
How to specify x.509 v5 extensions options in the configuration file for generating self-signed certificate using the OpenSSL "req -x509" command? You can use x.509 v3 extensions options when using OpenSSL "req -x509" command to generate a self-signed certificate. The provided x509 extensions will b... 2016-10-25, ∼8091🔥, 0💬

OpenSSL "ca -revoke" - Revoke a Certificate
How to revoke a certificate using the OpenSSL "ca" command? The certificate was signed by me with my CA certificate, but now it is no longer needed. If you want revoke a certificate that was signed by you previously, you can use the OpenSSL "ca -revoke" command to revoke it. Actually, the certificat... 2016-09-10, ∼7974🔥, 0💬

OpenSSL "ans1parse" - DSA Private Key in ASN.1 Structure
How to view the ASN.1 structure of an DSA private key using the OpenSSL "asn1parse" command? You can use the OpenSSL "asn1parse" command to view the ASN.1 structure of an DSA private key as shown in the test below: C:\Users\fyicenter&gt;\loc al\openssl\opensslgenpkey -genparam -algorithm dsa -ou... 2016-09-27, ∼7910🔥, 0💬

OpenSSL "ca" Error "stateOrProvinceName field needed to be the same"
Why I am getting the "The stateOrProvinceName field needed to be the same in the CA certificate (...) and the request (...)" error when running OpenSSL "ca" command? If you are running the OpenSSL "ca" command installed with the slproweb binary package for Windows, you may get the "The stateOrProvin... 2016-09-13, ∼7901🔥, 0💬

OpenSSL "ans1parse" - DSA Public Key in ASN.1 Structure
How to view the ASN.1 structure of an DSA public key using the OpenSSL "asn1parse" command? You can use the OpenSSL "asn1parse" command to view the ASN.1 structure of an DSA public key as shown in the test below: C:\Users\fyicenter&gt;\loc al\openssl\opensslpkey -in dsa_pri.key -pubout -out dsa_... 2016-09-26, ∼7842🔥, 0💬

OpenSSL "ans1parse" - BITWRAP and OCTWRAP Modifiers
What are BITWRAP and OCTWRAP modifiers in the configuration file for the OpenSSL "asn1parse" command? BITWRAP and OCTWRAP modifiers in OpenSSL configuration files are used to automatically wrap a SEQUENCE structure into a BIT STRING or OCTET STRING field. The test below is a demonstration of using B... 2016-09-28, ∼7784🔥, 0💬

<< < 1 2 3 4 5 6 7 8 9 … > >>   ∑:237  Sort:Date

Android Apple Mac DH Keys DSA Keys EC Keys Firefox General Google Chrome IE (Internet Explorer) Intermediate CA Java VM JDK Keytool Microsoft CertUtil Microsoft Edge Mozilla CertUtil OpenSSL Other Portecle Publishers Revoked Certificates Root CA RSA Keys Tools Tutorial What Is Windows