Am Sonntag, 2. August 2015, 22:28:33 schrieb Marcel Holtmann:
Hi Marcel,
>Hi Tadeusz,
>
>I think we need to split the akcipher_alg setkey callback into a setkey and
>setpubkey.
>
>diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
>index 69d163e39101..ca93952b6d19 100644
>--- a/include/crypto/akcipher.h
>+++ b/include/crypto/akcipher.h
>@@ -91,6 +91,8 @@ struct akcipher_alg {
> int (*decrypt)(struct akcipher_request *req);
> int (*setkey)(struct crypto_akcipher *tfm, const void *key,
> unsigned int keylen);
>+ int (*setpubkey)(struct crypto_akcipher *tfm, const void *key,
>+ unsigned int keylen);
> int (*init)(struct crypto_akcipher *tfm);
> void (*exit)(struct crypto_akcipher *tfm);
>
>If the cipher actually uses two different formats for the public + private
The public key is n + e.
The private key is n + d.
Both are encoded in the BER structure the current API requires. It is
perfectly valid to provide only n + e when you do public key operations.
Please see in the testmgr.h for the 2048 bit key test vector (i.e. the one
with public_key_vec = true). The BER structure has nice comments from Tadeusz
to indicate it only contains n and e without d.
Thus, I do not currently understand your request. May I ask you to give more
explanation why the use of BER is insufficient?
Ciao
Stephan
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