[openssl-users] FIPS: Converting AES_ctr128_encrypt() to EVP_ methods

[Dr. Stephen Henson]

On Mon, Mar 16, 2015, jonetsu wrote:

> Hello,
> 
> An application that needs converting to FIPS is currently using
> AES_ctr128_encrypt().  That function calls in turn
> CRYPTO_ctr128_encrypt() which then does some internal
> computations.  They are not documented in the 'full list of
> crypto APIs'.  What would be the FIPS-compatible EVP
> equivalent(s) ?
> 

The EVP cipher is called EVP_aes_128_ctr(): once you pass that as the
EVP_CIPHER argument (for example to EVP_EncryptInit_ex) you can use EVP like
any other cipher.

Steve.
--
Dr Stephen N. Henson. OpenSSL project core developer.
Commercial tech support now available see: http://www.openssl.org