static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
unsigned int keylen)
{
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
int err, size;
err = crypto_akcipher_set_priv_key(ctx->child, key, keylen);
if (!err) {
/* Find out new modulus size from rsa implementation */
size = crypto_akcipher_maxsize(ctx->child);
ctx->key_size = size > 0 ? size : 0;
if (size <= 0)
err = size;
}
return err;
}
static int pkcs1pad_set_priv_key(struct crypto_akcipher *tfm, const void *key,
unsigned int keylen)
{
struct pkcs1pad_ctx *ctx = akcipher_tfm_ctx(tfm);
int err;
ctx->key_size = 0;
err = crypto_akcipher_set_priv_key(ctx->child, key, keylen);
if (err)
return err;
/* Find out new modulus size from rsa implementation */
err = crypto_akcipher_maxsize(ctx->child);
if (err > PAGE_SIZE)
return -ENOTSUPP;
ctx->key_size = err;
return 0;
}