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authorDimitri John Ledkov <dimitri.ledkov@canonical.com>2023-10-02 00:57:15 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2023-10-05 18:16:31 +0800
commitaed3ded87f1c467e1193ae2df1e79b06d909fed5 (patch)
tree9277ab2d947823ebc0502caaaa530e978f28efc0
parent2b2a4f67c38122906546d9ea411bf1fcef20636b (diff)
downloadlinux-crypto-aed3ded87f1c467e1193ae2df1e79b06d909fed5.tar.gz
linux-crypto-aed3ded87f1c467e1193ae2df1e79b06d909fed5.zip
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>
-rw-r--r--crypto/asymmetric_keys/mscode_parser.c6
-rw-r--r--crypto/asymmetric_keys/pkcs7_parser.c6
-rw-r--r--crypto/asymmetric_keys/x509_cert_parser.c6
3 files changed, 0 insertions, 18 deletions
diff --git a/crypto/asymmetric_keys/mscode_parser.c b/crypto/asymmetric_keys/mscode_parser.c
index 839591ad..690405eb 100644
--- a/crypto/asymmetric_keys/mscode_parser.c
+++ b/crypto/asymmetric_keys/mscode_parser.c
@@ -75,12 +75,6 @@ int mscode_note_digest_algo(void *context, size_t hdrlen,
oid = look_up_OID(value, vlen);
switch (oid) {
- case OID_md4:
- ctx->digest_algo = "md4";
- break;
- case OID_md5:
- ctx->digest_algo = "md5";
- break;
case OID_sha1:
ctx->digest_algo = "sha1";
break;
diff --git a/crypto/asymmetric_keys/pkcs7_parser.c b/crypto/asymmetric_keys/pkcs7_parser.c
index 277482bb..cf4caab9 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -227,12 +227,6 @@ int pkcs7_sig_note_digest_algo(void *context, size_t hdrlen,
struct pkcs7_parse_context *ctx = context;
switch (ctx->last_oid) {
- case OID_md4:
- ctx->sinfo->sig->hash_algo = "md4";
- break;
- case OID_md5:
- ctx->sinfo->sig->hash_algo = "md5";
- break;
case OID_sha1:
ctx->sinfo->sig->hash_algo = "sha1";
break;
diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index 0a7049b4..2c309286 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;