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Subject[55/90] xfrm: Fix key lengths for rfc3686(ctr(aes))
3.0-stable review patch.  If anyone has any objections, please let us know.

------------------


From: Tushar Gohad <tgohad@mvista.com>

[ Upstream commit 4203223a1aed862b4445fdcd260d6139603a51d9 ]

Fix the min and max bit lengths for AES-CTR (RFC3686) keys.
The number of bits in key spec is the key length (128/256)
plus 32 bits of nonce.

This change takes care of the "Invalid key length" errors
reported by setkey when specifying 288 bit keys for aes-ctr.

Signed-off-by: Tushar Gohad <tgohad@mvista.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
net/xfrm/xfrm_algo.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -462,8 +462,8 @@ static struct xfrm_algo_desc ealg_list[]
.desc = {
.sadb_alg_id = SADB_X_EALG_AESCTR,
.sadb_alg_ivlen = 8,
- .sadb_alg_minbits = 128,
- .sadb_alg_maxbits = 256
+ .sadb_alg_minbits = 160,
+ .sadb_alg_maxbits = 288
}
},
};



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