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crypto: authenc - Find proper IV address in ablkcipher callback #3

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Merged
noglitch merged 1 commit into from
Dec 19, 2013
Merged

crypto: authenc - Find proper IV address in ablkcipher callback #3

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7 changes: 4 additions & 3 deletions crypto/authenc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -368,9 +368,10 @@ static void crypto_authenc_encrypt_done(struct crypto_async_request *req,
if (!err) {
struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc);
struct ablkcipher_request *abreq = aead_request_ctx(areq);
u8 *iv = (u8 *)(abreq + 1) +
crypto_ablkcipher_reqsize(ctx->enc);
struct authenc_request_ctx *areq_ctx = aead_request_ctx(areq);
struct ablkcipher_request *abreq = (void *)(areq_ctx->tail
+ ctx->reqoff);
u8 *iv = (u8 *)abreq - crypto_ablkcipher_ivsize(ctx->enc);

err = crypto_authenc_genicv(areq, iv, 0);
}
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