Hi,
openssl can be used to create signature of a file and check the file against the signature to prevent unauthorized changes.
Continue reading openssl: Sign a file and verify it.
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Category Archives: openssl
openssl: List ciphersuites from SSL_CTX_set_cipher_list
Hi,
a customer needs a list of valid ciphersuites from a given allowed SSL_CTX_set_cipher_list.
Continue reading openssl: List ciphersuites from SSL_CTX_set_cipher_list
SSL/TLS: Enumerate all security ciphers a Web- or Mailserver offers
Hi,
you want to know which security ciphers a particular server supports?
Continue reading SSL/TLS: Enumerate all security ciphers a Web- or Mailserver offers
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
Continue reading Powershell: Export/Convert a X509 Certificate to pem format
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