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authorDimitri John Ledkov <dimitri.ledkov@canonical.com>2023-10-02 02:57:15 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2023-10-05 13:16:31 +0300
commit8468516f9f93a41dc65158b6428a1a1039c68f20 (patch)
tree8ca22d784649fe63229430c8fbfdcd823f391f08 /crypto/asymmetric_keys/x509_cert_parser.c
parent18e2ef172cec1680a6736cc7f6e1b92c93b3daa0 (diff)
downloadlinux-8468516f9f93a41dc65158b6428a1a1039c68f20.tar.xz
crypto: pkcs7 - remove md4 md5 x.509 support
Remove support for md4 md5 hash and signatures in x.509 certificate parsers, pkcs7 signature parser, authenticode parser. All of these are insecure or broken, and everyone has long time ago migrated to alternative hash implementations. Also remove md2 & md3 oids which have already didn't have support. This is also likely the last user of md4 in the kernel, and thus crypto/md4.c and related tests in tcrypt & testmgr can likely be removed. Other users such as cifs smbfs ext modpost sumversions have their own internal implementation as needed. Signed-off-by: Dimitri John Ledkov <dimitri.ledkov@canonical.com> Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/asymmetric_keys/x509_cert_parser.c')
-rw-r--r--crypto/asymmetric_keys/x509_cert_parser.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index 0a7049b470c1..2c30928621b7 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -195,15 +195,9 @@ int x509_note_sig_algo(void *context, size_t hdrlen, unsigned char tag,
pr_debug("PubKey Algo: %u\n", ctx->last_oid);
switch (ctx->last_oid) {
- case OID_md2WithRSAEncryption:
- case OID_md3WithRSAEncryption:
default:
return -ENOPKG; /* Unsupported combination */
- case OID_md4WithRSAEncryption:
- ctx->cert->sig->hash_algo = "md4";
- goto rsa_pkcs1;
-
case OID_sha1WithRSAEncryption:
ctx->cert->sig->hash_algo = "sha1";
goto rsa_pkcs1;