# Tag Info

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Q: I am using CAPI Engine in OpenSSL and I did some test. When I use TLS 1.0 or 1.1, during handshake and RSA signing, PKCS padding is chosen. When I use TLS 1.2, RSA signing uses PSS padding. Funny, a quick lookup of TLS 1.2 contains the following: Note that there are certificates that use algorithms and/or algorithm combinations that cannot be ...

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What is the difference between cfb and cfb1 and cfb8? Well, first of all, we need examine what CFB is. Here is what the encryption process is: Take the previous $n$ bits of ciphertext (where $n$ is the block size of the cipher, for Aria, $n=128$ Send it through the block cipher in encryption mode Extract $k$ bits of the result, exclusive-or that with the ...

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With regard to the structure of RSA key files, and how the public key is related to the private key - you can see that the modulus in the public key file is the product of the two large primes contained in the private key file by doing the following: Generate a private key: openssl genrsa -out private.key 2048 Extract the public key from the private key ...

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Now that the Qs have been clarified (and yes this isn't really about cryptography, and would be more appropriate on security.SX = application of crypto in systems or superuser = use of programs including security programs like OpenSSL or maybe even stackoverflow) ... Given the example ... 1. Is it correct that EXPPW is the p12 container password and ...

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