f758b68708
The content of this branch was automatically imported from Fedora ELN with the following as its source: https://src.fedoraproject.org/rpms/freeradius#2898c9222beb70cb2dc4d5db7f5a37f6988530bc
69 lines
2.0 KiB
Diff
69 lines
2.0 KiB
Diff
From b93796b1890b35a0922bfba9cd08e8a1a5f956cf Mon Sep 17 00:00:00 2001
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From: Alexander Scheel <ascheel@redhat.com>
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Date: Fri, 28 Sep 2018 09:54:46 -0400
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Subject: [PATCH 1/2] Replace HMAC-MD5 implementation with OpenSSL's
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If OpenSSL EVP is not found, fallback to internal implementation of
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HMAC-MD5.
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Signed-off-by: Alexander Scheel <ascheel@redhat.com>
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---
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src/lib/hmacmd5.c | 34 +++++++++++++++++++++++++++++++++-
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1 file changed, 33 insertions(+), 1 deletion(-)
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diff --git a/src/lib/hmacmd5.c b/src/lib/hmacmd5.c
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index 2c662ff368..1cca00fa2a 100644
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--- a/src/lib/hmacmd5.c
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+++ b/src/lib/hmacmd5.c
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@@ -27,10 +27,41 @@
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RCSID("$Id: 2c662ff368e46556edd2cfdf408bd0fca0ab5f18 $")
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+#ifdef HAVE_OPENSSL_EVP_H
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+#include <openssl/hmac.h>
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+#include <openssl/evp.h>
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+#endif
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+
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#include <freeradius-devel/libradius.h>
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#include <freeradius-devel/md5.h>
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-/** Calculate HMAC using MD5
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+#ifdef HAVE_OPENSSL_EVP_H
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+/** Calculate HMAC using OpenSSL's MD5 implementation
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+ *
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+ * @param digest Caller digest to be filled in.
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+ * @param text Pointer to data stream.
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+ * @param text_len length of data stream.
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+ * @param key Pointer to authentication key.
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+ * @param key_len Length of authentication key.
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+ *
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+ */
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+void fr_hmac_md5(uint8_t digest[MD5_DIGEST_LENGTH], uint8_t const *text, size_t text_len,
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+ uint8_t const *key, size_t key_len)
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+{
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+ HMAC_CTX *ctx = HMAC_CTX_new();
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+
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+#ifdef EVP_MD_CTX_FLAG_NON_FIPS_ALLOW
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+ /* Since MD5 is not allowed by FIPS, explicitly allow it. */
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+ HMAC_CTX_set_flags(ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
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+#endif /* EVP_MD_CTX_FLAG_NON_FIPS_ALLOW */
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+
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+ HMAC_Init_ex(ctx, key, key_len, EVP_md5(), NULL);
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+ HMAC_Update(ctx, text, text_len);
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+ HMAC_Final(ctx, digest, NULL);
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+ HMAC_CTX_free(ctx);
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+}
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+#else
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+/** Calculate HMAC using internal MD5 implementation
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*
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* @param digest Caller digest to be filled in.
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* @param text Pointer to data stream.
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@@ -101,6 +132,7 @@
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* hash */
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fr_md5_final(digest, &context); /* finish up 2nd pass */
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}
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+#endif /* HAVE_OPENSSL_EVP_H */
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/*
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Test Vectors (Trailing '\0' of a character string not included in test):
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