On 02/28/18 17:25, Viktor Dukhovni wrote: > > >> On Feb 28, 2018, at 5:39 AM, Andy Polyakov <ap...@openssl.org> wrote: >> >> I'd like to request more opinions on >> https://github.com/openssl/openssl/pull/5427. Key dispute question is >> whether or not following fragment should work >> >> unsigned char *inp = buf, *out = buf; >> >> for (i = 0; i < sizeof(buf); i++) { >> EVP_EncryptUpdate(ctx, out, &outl, inp++, 1); >> out += outl; >> } > > This should work. >
It does only work, if you know that ctx->buf_len == 0 before the loop is entered. It does not work with CFB1, CCM, XTS and WRAP modes. There is no access function to get the internal state of the cipher context. I the documentation does not cover this at all, and most of all I really wonder how the wording could look like. Bernd. _______________________________________________ openssl-project mailing list openssl-project@openssl.org https://mta.openssl.org/mailman/listinfo/openssl-project
