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What Is BER (Basic Encoding Rules)
This section introduces the BER (Basic Encoding Rules) defined in the ASN.1 standard. It uses the TLV (Tag-Length-Value) format to encode a value of a given data type.
2024-11-27, ∼292🔥, 0💬

Export Key Pair using "keytool -importkeystore"
This section provides a tutorial example on how to export a private/public key pair from a KeyStore file using the 'keytool -importkeystore'.
2024-11-27, ∼288🔥, 0💬

Most Popular Certificate Authorities
This section provides a list of most popular certificate authorities.
2024-11-27, ∼273🔥, 0💬

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format.
2024-11-27, ∼265🔥, 0💬

"openssl pkcs12 -export" - Certificate and Key Bundle
This section provides a tutorial example on how to create a PKCS12 bundle to store a self-signed certificate and its private/public key pair using the 'openssl pkcs12 -export' command.
2024-11-27, ∼264🔥, 0💬

Java "keytool" Commands and KeyStore Files
This chapter provides tutorial notes and example codes on the Java 'keytool' command. Topics include introduction of KeyStore file and 'keytool' command; generating and managing keys and self-signed certificates; exporting and importing certificates; generating CSR (Certificate Signing Request); sig...
2024-11-27, ∼263🔥, 0💬

What Is ASN.1 (Abstract Syntax Notation One)
This section introduces ASN.1 (Abstract Syntax Notation One), which is a language that allows you to define your own constructed data types.
2024-11-27, ∼257🔥, 0💬

"keytool -export/import" - Export and Import Certificates
This section provides a tutorial example on how to use the 'keytool -export' command to export certificates out of a 'keystore' file. The 'keytool -import' command can be used to import certificates into a 'keystore' file.
2024-11-27, ∼256🔥, 0💬

"openssl genpkey" - Generate Private Key
This section describes the 'openssl genpkey' command, which generates a private/public key pair for a given algorithm.
2024-11-27, ∼254🔥, 0💬

PKI Certificate File Formats
This chapter provides a quick introduction of PKI certificate file formats. Topics include ASN.1 standard; BER and DER encodings; PKI certificates in DER, PEM, PKCS7, and PKCS12 file formats; PKI certificate decoders and ASN.1 parsers.
2024-11-27, ∼247🔥, 0💬

"openssl ca" - CA Signing Certificate
This section describes the 'openssl ca' command, which allows you to sign a CSR (Certificate Signing Request) into a certificate as a CA (Certificate Authority).
2024-11-27, ∼244🔥, 0💬

PKI Certificate in Base64 Format
This section describes the Base64 file format to store PKI certificates.
2024-11-27, ∼243🔥, 0💬

ASN.1 Data Structure of PKCS7 File
This section provides a tutorial example to show the ASN.1 data structure of a PKCS12 file.
2024-11-27, ∼243🔥, 0💬

PKI Certificate Structure in ASN.1 Notations
This section presents the PKI certificate structure defined in ASN.1 notations.
2024-11-27, ∼241🔥, 0💬

"openssl ca" - CA (Certificate Authority) Tool
This chapter provides a quick introduction of the 'openssl ca' command, which can be used as CA (Certificate Authority) tool. Topics include OpenSSL configuration file, openssl.cnf; setting up root CA and intermediate CA environments; signing CSRs into certificates; adding x509v3 extensions in CSR a...
2024-11-27, ∼237🔥, 0💬

PKI Certificate File ASN.1 Parser
This section provides a quick introduction on ASN.1 parsers, which can be used to parse PKI certificates back to ASN.1 data structure.
2024-11-27, ∼236🔥, 0💬

What Is PKCS7 File Format
This section describes the PKCS7 File Format, which can be used to store multiple signed and/or encrypted data items, including certificates and CRL (Certificate Revocation List) in a single file.
2024-11-27, ∼234🔥, 0💬

"openssl pkcs12 -export" - Limitations and Errors
This section provides tutorial examples showing limitations and errors of the 'openssl pkcs12 -export' command.
2024-11-27, ∼233🔥, 0💬

PKCS7 Certificate Chain File
This chapter provides a quick introduction of the PKCS7 certificate chain file. Topics include introduction of PKCS7 file format; creating PKCS7 file with a single certificate or a certificate chain, and converting PKCS12 file to PEM bundle using OpenSSL.
2024-11-27, ∼233🔥, 0💬

PKI Certificate Store
This chapter provides a quick introduction of PKI certificate stores, including Windows Windows Certificate Stores, macOS KeyChains, Linux Trust Stores, Java KeyStores, PEM Certificate Bundle Files and PKCS12 Certificate Bundle Files.
2024-11-27, ∼232🔥, 0💬

"openssl req -x509" - Generate Self-Signed Certificate
This section describes the 'openssl req -x509' command, which allows you to generate self-signed certificate from a CSR, an existing key pair, or an internally generated key pair.
2024-11-27, ∼231🔥, 0💬

Use "openssl ca" as Intermediate CA
This section provides a tutorial example on how to use the 'openssl ca' command as Intermediate CA to sign a CSR (Certificate Signing Request) into a certificate using a given section in openssl.cnf.
2024-11-27, ∼230🔥, 0💬

"openssl crl2pkcs7 -nocrl" - PKCS7 Certificate File
This section provides a tutorial example on how to create a PKCS7 file with a single certificate using the 'openssl crl2pkcs7 -nocrl' command.
2024-11-27, ∼230🔥, 0💬

What Is DER (Distinguished Encoding Rules)
This section introduces the DER (Distinguished Encoding Rules) defined in the ASN.1 standard. It is a restricted version of BER (Basic Encoding Rules) to ensure unique encoding output.
2024-11-27, ∼228🔥, 0💬

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