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authorLukas Wunner <lukas@wunner.de>2024-09-10 16:30:15 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2024-10-05 13:22:04 +0800
commit7964b0d4bd1271f82d6b455366a200d320f7dbf8 (patch)
tree8d5c04a910f873f121d962185f5ab64bc91fc667 /crypto
parentae117924b291b2ccf6be0fe197695c96fc62e78c (diff)
crypto: rsa-pkcs1pad - Deduplicate set_{pub,priv}_key callbacks
pkcs1pad_set_pub_key() and pkcs1pad_set_priv_key() are almost identical. The upcoming migration of sign/verify operations from rsa-pkcs1pad.c into a separate crypto_template will require another copy of the exact same functions. When RSASSA-PSS and RSAES-OAEP are introduced, each will need yet another copy. Deduplicate the functions into a single one which lives in a common header file for reuse by RSASSA-PKCS1-v1_5, RSASSA-PSS and RSAES-OAEP. Signed-off-by: Lukas Wunner <lukas@wunner.de> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/rsa-pkcs1pad.c30
1 files changed, 2 insertions, 28 deletions
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index cd501195f34a..3c5fe8c93938 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -131,42 +131,16 @@ static int pkcs1pad_set_pub_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_pub_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;
+ return rsa_set_key(ctx->child, &ctx->key_size, RSA_PUB, key, keylen);
}
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;
+ return rsa_set_key(ctx->child, &ctx->key_size, RSA_PRIV, key, keylen);
}
static unsigned int pkcs1pad_get_max_size(struct crypto_akcipher *tfm)