* crypto_shash_digest API
@ 2010-11-23 14:34 Mimi Zohar
2010-11-23 14:42 ` Herbert Xu
0 siblings, 1 reply; 2+ messages in thread
From: Mimi Zohar @ 2010-11-23 14:34 UTC (permalink / raw)
To: linux-crypto; +Cc: Herbert Xu
Hi!
Am having problems finding any shash API documentation. Could someone
tell me if 'out' needs to be zeroed before calling crypto_shash_digest?
int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
thanks,
Mimi
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: crypto_shash_digest API
2010-11-23 14:34 crypto_shash_digest API Mimi Zohar
@ 2010-11-23 14:42 ` Herbert Xu
0 siblings, 0 replies; 2+ messages in thread
From: Herbert Xu @ 2010-11-23 14:42 UTC (permalink / raw)
To: Mimi Zohar; +Cc: linux-crypto
On Tue, Nov 23, 2010 at 09:34:01AM -0500, Mimi Zohar wrote:
> Hi!
>
> Am having problems finding any shash API documentation. Could someone
> tell me if 'out' needs to be zeroed before calling crypto_shash_digest?
>
> int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
> unsigned int len, u8 *out)
No, out will be filled with the crypto_shash_digestsize bytes
if crypto_shash_digest returns zero.
Cheers,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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