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Commit ca0494c0 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: aead - Add skcipher null for IV generators 



This patch adds an skcipher null object alongside the existing
null blkcipher so that IV generators using it can switch over
to skcipher.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 1e1f0061

crypto/aead.c

+9 −1
Original line number Diff line number Diff line
@@ -294,10 +294,15 @@ int aead_init_geniv(struct crypto_aead *aead) 
	if (err)

		goto out;



	ctx->sknull = crypto_get_default_null_skcipher2();

	err = PTR_ERR(ctx->sknull);

	if (IS_ERR(ctx->sknull))

		goto out;



	ctx->null = crypto_get_default_null_skcipher();

	err = PTR_ERR(ctx->null);

	if (IS_ERR(ctx->null))

		goto out;

		goto drop_sknull;



	child = crypto_spawn_aead(aead_instance_ctx(inst));

	err = PTR_ERR(child);
@@ -315,6 +320,8 @@ int aead_init_geniv(struct crypto_aead *aead) 


drop_null:

	crypto_put_default_null_skcipher();

drop_sknull:

	crypto_put_default_null_skcipher2();

	goto out;

}

EXPORT_SYMBOL_GPL(aead_init_geniv);
@@ -325,6 +332,7 @@ void aead_exit_geniv(struct crypto_aead *tfm) 


	crypto_free_aead(ctx->child);

	crypto_put_default_null_skcipher();

	crypto_put_default_null_skcipher2();

}

EXPORT_SYMBOL_GPL(aead_exit_geniv);

include/crypto/internal/geniv.h

+1 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ struct aead_geniv_ctx { 
	spinlock_t lock;

	struct crypto_aead *child;

	struct crypto_blkcipher *null;

	struct crypto_skcipher *sknull;

	u8 salt[] __attribute__ ((aligned(__alignof__(u32))));

};