Category Archives: openssl

SSL/TLS: Enumerate all security ciphers a Web- or Mailserver offers

Hi,

you want to know which security ciphers a particular server supports?
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Powershell: Export/Convert a X509 Certificate to pem format

Hi,

powershell respectively the .NET framework does not offer a method to export a X509 certificate in PEM format. The pem format is a Base64 encoded view from the raw data with a header and a footer.

An example to export the machine certificate (with Thumbprint: 1C0381278083E3CB026E46A7FF09FC4B79543D) of an computer
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OpenSSL: Asymmetric en- and decryption of a file


Hi,

this post describes the en- and decryption of a file with a asymmetric encryption algorithm.

Asymmetric encryption means you encrypt data by a public key and can only decrypt this data with a private key associated with the public key.
Continue reading OpenSSL: Asymmetric en- and decryption of a file

OpenSSL: Symmetric en- and decryption of a file


Hi,

this post describes the en- and decryption of a file with a symmetric encryption algorithm.

Symmetric encryption means encryption and decryption is only possible with the same secret/password.
Continue reading OpenSSL: Symmetric en- and decryption of a file

OpenSSL: Build on Windows

Hi,

these steps compile openssl on Windows.
Continue reading OpenSSL: Build on Windows