From 8468516f9f93a41dc65158b6428a1a1039c68f20 Mon Sep 17 00:00:00 2001 From: Dimitri John Ledkov Date: Mon, 2 Oct 2023 00:57:15 +0100 Subject: 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 Reviewed-by: Jarkko Sakkinen Signed-off-by: Herbert Xu --- crypto/asymmetric_keys/mscode_parser.c | 6 ------ crypto/asymmetric_keys/pkcs7_parser.c | 6 ------ crypto/asymmetric_keys/x509_cert_parser.c | 6 ------ 3 files changed, 18 deletions(-) (limited to 'crypto') diff --git a/crypto/asymmetric_keys/mscode_parser.c b/crypto/asymmetric_keys/mscode_parser.c index 839591ad21ac..690405ebe77b 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 277482bb1777..cf4caab9620f 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 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; -- cgit v1.2.3