[openssl-users] Problems with man page code example at EVP_EncryptInit

[Sam Habiel]

Never mind. Easy google search away: https://github.com/openssl/openssl
On Wed, Sep 5, 2018 at 10:49 AM Sam Habiel <sam.habiel at gmail.com> wrote:
>
> Todd,
>
> What is the correct repo on Github?
>
> --Sam
> On Wed, Sep 5, 2018 at 10:46 AM Short, Todd via openssl-users
> <openssl-users at openssl.org> wrote:
> >
> > PRs on GitHub to fix documentation are always welcome.
> > --
> > -Todd Short
> > // tshort at akamai.com
> > // "One if by land, two if by sea, three if by the Internet."
> >
> > On Sep 5, 2018, at 10:18 AM, Sam Habiel <sam.habiel at gmail.com> wrote:
> >
> > I had to double check something--I was wrong about something--&outlen
> > is not incremented inside of openssl--so you have to keep another
> > variable to which you add outlen and use that to set the read/write
> > pointer in outbuf.
> >
> > --Sam
> > On Wed, Sep 5, 2018 at 10:04 AM Sam Habiel <sam.habiel at gmail.com> wrote:
> >
> >
> > First time poster. I hope I am writing to the right place.
> >
> > Example for "General encryption and decryption function example using
> > FILE I/O and AES128 with a 128-bit key" has two errors. I spent a lot
> > of time trying to figure out what I did wrong for a while...
> >
> > 1. ctx is already a pointer; it does not need to be indirected to get
> > the pointer.
> >
> >        EVP_CipherInit_ex(&ctx, EVP_aes_128_cbc(), NULL, NULL, NULL,
> > do_encrypt);
> >
> > should say:
> >
> >        EVP_CipherInit_ex(ctx, EVP_aes_128_cbc(), NULL, NULL, NULL, do_encrypt);
> >
> > 2. ciphertext length is not used to update write position:
> >
> >                if(!EVP_CipherUpdate(ctx, outbuf, &outlen, inbuf, inlen))
> > and
> >
> >        if(!EVP_CipherFinal_ex(ctx, outbuf, &outlen))
> >
> > should say (what worked for me):
> >
> >                if(!EVP_CipherUpdate(ctx, outbuf + outlen, &outlen,
> > inbuf, inlen))
> >
> > and
> >        if(!EVP_CipherFinal_ex(ctx, outbuf + outlen, &outlen))
> >
> > It would be nice if there is a complete example that compiles and has
> > a main() to run it.
> >
> > --Sam
> >
> > --
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> >
> >
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