Besides using the same cipher (session) key, you also need to use the same initialization vector. Note: in practice, the initialization is a random number that should not be reused. - Steve > Hi all > > I have a requirement to encrypt files, in such a way identical files > should generate identical ciphertexts. > > I plan to use aes-256-cbc cipher with 128-byte long non-guessable password > per input file. Identical input files will be provided with identical > passwords. > > 1. Is it no salt the way forward for me? > > 2. How many rounds are recommended for EVP_BytesToKey() in my case? > > Many thanks in advance. > > Best regards > Unga > > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-users@openssl.org > Automated List Manager majord...@openssl.org > >
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