> From: openssl-users [mailto:openssl-users-boun...@openssl.org] On Behalf Of
> Eudald Sabaté Creixell
> Sent: Wednesday, April 12, 2017 10:43
> First of all I'm new to OpenSSL and EVP functions. I've been using them in a
> project in order to encrypt/decrypt files
> using 256-bit AES in CBC
You need to learn what CBC mode is. Block ‘n’ feeds into block ‘n+1’ The
behavior you describe is not wrong.
Blocks are padded, so only read outlen bytes.
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