Error with r a n d o m b y t e s / r a n d o m b y t e s . c

[Serasar]

Have this program written in Nim(I use this binding https://github.com/FedericoCeratto/nim-libsodium):

var key = randombytes(crypto_secretbox_KEYBYTES())
let c = crypto_secretbox_easy(key, "test")
let d = crypto_secretbox_easy(key, c)
echo(d)

Get this error:
A s s e r t i o n f a i l e d !

P r o g r a m : C : \ D e v \ n i m _ e n c \ c r y p t o . e x e
F i l e : r a n d o m b y t e s / r a n d o m b y t e s . c , L i n e 2 0
4

E x p r e s s i o n : b u f _ l e n < = S I Z E _ M A X

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
SIGABRT: Abnormal termination.
It seems that this error only happens on 32 bit install for some reason. Everything works fine on 64 bits.

Also this issue is here FedericoCeratto/nim-libsodium#8

[jedisct1]

I'm not familiar with Nim, but an error on Line 20 for a source code that is only 4 lines long doesn't seem right :) Neither seems to be the double call to secretbox().

Can you post the actual test case?

[ektrah]

The assertion seems to be this one:

libsodium/src/libsodium/randombytes/randombytes.c

Line 204 in 875fbd0

assert(buf_len <= SIZE_MAX);

[ektrah]

buf_len is an unsigned long long in the C code but a csize (=size_t) in the Nim wrapper.

[jedisct1]

Glad that we have these assertions :)

So this is a bug in the Nim wrapper that you should report to the author!