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authorslontis <shane.lontis@oracle.com>2023-02-17 09:54:58 +1000
committerTomas Mraz <tomas@openssl.org>2023-12-29 10:42:39 +0100
commit2e078bbef8677a08fe0a02bc506043314732538a (patch)
treef4ef0d4da0e8ee0817ac1e3ac9b5b8a441344c16
parent7e3f84b41984442dae698bf4d7e593d2eed1c3c4 (diff)
Limit RSA-OAEP related functions to RSA keys only
Make EVP_PKEY_CTX_set_rsa_oaep_md() and EVP_PKEY_CTX_get_rsa_oaep_md_name() only work for RSA keys. Since these calls use "digest" as a OSSL_PARAM, they should not work for other key types. Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/20319) (cherry picked from commit 0c3eb31b55d3c1544e4e044c2e3c939655bac93d)
-rw-r--r--crypto/rsa/rsa_lib.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index 71a17a9234..c9c661b1ed 100644
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -999,6 +999,10 @@ int EVP_PKEY_CTX_set_rsa_pss_keygen_md_name(EVP_PKEY_CTX *ctx,
*/
int EVP_PKEY_CTX_set_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD *md)
{
+ /* If key type not RSA return error */
+ if (!EVP_PKEY_CTX_is_a(ctx, "RSA"))
+ return -1;
+
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
EVP_PKEY_CTRL_RSA_OAEP_MD, 0, (void *)(md));
}
@@ -1026,6 +1030,10 @@ int EVP_PKEY_CTX_get_rsa_oaep_md_name(EVP_PKEY_CTX *ctx, char *name,
*/
int EVP_PKEY_CTX_get_rsa_oaep_md(EVP_PKEY_CTX *ctx, const EVP_MD **md)
{
+ /* If key type not RSA return error */
+ if (!EVP_PKEY_CTX_is_a(ctx, "RSA"))
+ return -1;
+
return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_RSA, EVP_PKEY_OP_TYPE_CRYPT,
EVP_PKEY_CTRL_GET_RSA_OAEP_MD, 0, (void *)md);
}