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OpenSSL "ans1parse" - Wrap of SEQUENCE Structure
What is the wrap of an ASN.1 SEQUENCE structure? The wrap of an ASN.1 SEQUENCE structure is the binary string of ASN.1 SEQUENCE structure in DER format stored in an BIT STRING or OCTET STRING field in another ASN.1 SEQUENCE structure. The main purpose of using the SEQUENCE wrap is to make the SEQUEN...
2016-09-28, 4280👍, 0💬

OpenSSL "ans1parse" - RSA Private Key in ASN.1 Structure
How to view the ASN.1 structure of an RSA private key using the OpenSSL "asn1parse" command? You can use the OpenSSL "asn1parse" command to view the ASN.1 structure of an RSA private key as shown in the test below: C:\Users\fyicenter>\local\o penssl\opensslgenrsa -out rsa_pri.key 512 Generating R...
2016-09-27, 4372👍, 0💬

OpenSSL "ans1parse" - RSA Public Key in ASN.1 Structure
How to view the ASN.1 structure of an RSA public key using the OpenSSL "asn1parse" command? You can use the OpenSSL "asn1parse" command to view the ASN.1 structure of an RSA public key as shown in the test below: C:\Users\fyicenter>\local\o penssl\opensslpkey -in rsa_pri.key -pubout -out rsa_pub....
2016-09-27, 4355👍, 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>\local\o penssl\opensslgenpkey -genparam -algorithm dsa -out ds...
2016-09-27, 4344👍, 0💬

OpenSSL "ans1parse" - Configuration File for RSA Private Key
Can I build an RSA private key from an OpenSSL configuration file? Yes, you can build an RSA private key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_rsa_pri_key.cnf asn1 = SEQUENCE:rsa_pri_key [rsa_pri_key] ve...
2016-09-27, 4268👍, 0💬

OpenSSL "ans1parse" - Configuration File for RSA Public Key
Can I build an RSA public key from an OpenSSL configuration file? Yes, you can build an RSA public key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_rsa_pub_key.cnf asn1 = SEQUENCE:rsa_pub_key [rsa_pub_key] algo...
2016-09-27, 4260👍, 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>\local\o penssl\opensslpkey -in dsa_pri.key -pubout -out dsa_pub....
2016-09-26, 4349👍, 0💬

OpenSSL "ans1parse" - DH Private Key in ASN.1 Structure
How to view the ASN.1 structure of an DH private key using the OpenSSL "asn1parse" command? You can use the OpenSSL "asn1parse" command to view the ASN.1 structure of an DH private key as shown in the test below: C:\Users\fyicenter>\local\o penssl\opensslgenpkey -genparam -algorithm dh -out dh_te...
2016-09-26, 4338👍, 0💬

OpenSSL "ans1parse" - DH Public Key in ASN.1 Structure
How to view the ASN.1 structure of an DH public key using the OpenSSL "asn1parse" command? You can use the OpenSSL "asn1parse" command to view the ASN.1 structure of an DH public key as shown in the test below: C:\Users\fyicenter>\local\o penssl\opensslpkey -in dh_pri.key -pubout -out dh_pub.key ...
2016-09-26, 4316👍, 0💬

OpenSSL "ans1parse" - Configuration File for DH Public Key
Can I build a DH public key from an OpenSSL configuration file? Yes, you can build a DH public key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_dh_pub_key.cnf asn1 = SEQUENCE:dh_pri_key [dh_pri_key] algorithm =...
2016-09-26, 4304👍, 0💬

OpenSSL "ans1parse" - Configuration File for DH Private Key
Can I build a DH private key from an OpenSSL configuration file? Yes, you can build a DH private key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_dh_pri_key.cnf asn1 = SEQUENCE:dh_pri_key [dh_pri_key] version =...
2016-09-26, 4300👍, 0💬

OpenSSL "ans1parse" - Configuration File for DSA Private Key
Can I build a DSA private key from an OpenSSL configuration file? Yes, you can build a DSA private key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_dsa_pri_key.cnf asn1 = SEQUENCE:dsa_pri_key [dsa_pri_key] vers...
2016-09-26, 4281👍, 0💬

OpenSSL "ans1parse" - Configuration File for DSA Public Key
Can I build a DSA public key from an OpenSSL configuration file? Yes, you can build a DSA public key from an OpenSSL configuration file, if you know the components of the key, as shown in the test below: C:\Users\fyicenter>type asn1_dsa_pub_key.cnf asn1 = SEQUENCE:dsa_pub_key [dsa_pub_key] algori...
2016-09-26, 4266👍, 0💬

OpenSSL "req" - Good Sample openssl.conf
Where can I get a good sample configuration file openssl.conf for OpenSSL "req" command? Below is a good sample configuration file openssl.conf for OpenSSL "req" command with explanations: C:\Users\fyicenter>type openssl.conf # Unnamed section of generic options # ... # --------------------------...
2016-09-23, 691👍, 0💬

OpenSSL "req -new" - CSR Attributes
How to add attributes in new CSR using OpenSSL "req -new" command? I was asked to create a CSR with a challenge password an attribute. In order to add attributes to new CSR created by the OpenSSL "req -new" command, first you need to write attribute options in a named section in the configuration fi...
2016-09-23, 651👍, 0💬

OpenSSL "ca" Command
Where to find tutorials on using OpenSSL "ca" command? Here is a collection of tutorials on using OpenSSL "ca" command compiled by FYIcenter.com team. OpenSSL "ca" Command Options OpenSSL "ca" - Create CSR for Testing OpenSSL "ca" - Create CA Certificate for Testing OpenSSL "ca" Error "./demoCA/newc...
2016-09-23, 570👍, 0💬

OpenSSL "req -x509 -extensions" - Test Self-Signed Certificate V3 Extensions
How to run OpenSSL "req -509" command to generate self-signed certificate with x.509 v3 extensions? I have x509_extensions option defined in the configuration file. If you want to run OpenSSL "req -509" command to generate self-signed certificate with x.509 v3 extensions, you can follow this example...
2016-09-23, 313👍, 0💬

OpenSSL "ca" Error "unable to open ./demoCA/index.txt"
Why I am getting the "unable to open './demoCA/index.txt'" 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 "unable to open './demoCA/index.txt'" error as shown below: C:\Users\fyicenter>\l...
2016-09-18, 1101👍, 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, 364👍, 0💬

OpenSSL "ca" - Create CSR for Testing
How to generate a new CSR to test the OpenSSL "ca" command? If you need some CSR (Certificate Signing Request) for testing purpose, you can generate them using the OpenSSL "req" command as shown below: C:\Users\fyicenter>\local\O penSSL-Win32\bin\openssl.exeOpenSSL> req -newkey rsa:1024 -out t...
2016-09-18, 328👍, 0💬

OpenSSL "ca" - Create CA Certificate for Testing
How to generate a new root CA certificate to test the OpenSSL "ca" command? If you need some root CA (Certificate Authority) certificates for testing purpose, you can generate them using the OpenSSL "req" command as shown below: C:\Users\fyicenter>\local\O penSSL-Win32\bin\openssl.exeOpenSSL> ...
2016-09-18, 318👍, 0💬

OpenSSL "ca" - "error while loading serial number"
Why I am getting the "error while loading serial number" 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 "error while loading serial number" error as shown below: C:\Users\fyicenter>\local.. .
2016-09-13, 2282👍, 0💬

OpenSSL "ca" Error "failed to update database TXT_DB error number 2"
Why I am getting the "failed to update database TXT_DB error number 2" error when running OpenSSL "ca" command? If you are using the OpenSSL "ca" command to sign a CSR that has the same DN (Distinguished Name) fields as an old CSR you have signed before, you will get the "failed to update database T...
2016-09-13, 529👍, 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, 423👍, 0💬

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