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Clarifying terms for cipher, algorithm, rsa, asymmetric, openssl

Q1: A cipher is an algorithm for encrypting data (the plaintext), turning it into ciphertext, and decrypting that ciphertext into the original plaintext. There are various notions of security, but ...
fgrieu's user avatar
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my ciphertext and original message look like they are two different sizes

AES is a block cipher which is a process that takes as input a fixed number of bits (known as the block size) and outputs the same number of bits. For AES, the block size is 128-bits or 16-bytes. When ...
Daniel S's user avatar
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