Alexey Luchko <l...@ank-sia.com> writes: > I'm new to openssl. > I've got two questions on EVP API: > > 1. What do EVP_EncryptInit_ex and EVP_CipherInit_ex differ with? > When should I use encrypt/decrypt and when cipher?
If you look at the source, EVP_EncryptInit_ex/EVP_DecryptInit_ex are just trivial wrappers around EVP_CipherInit_ex. So use whichever seems to make more sense to you. > 2. Where can I read about cipher modes? > There are several modes for each cipher on > http://openssl.org/docs/crypto/EVP_EncryptInit.html#CIPHER%20LISTING > They differ with suffix like _cbc, _ecb, _cfb, _ofb and etc. > What are meanings of these suffixes and use-cases? They're standard chaining modes. wikipedia has a reasonable description of them. ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org
