27 lines
927 B
Diff
27 lines
927 B
Diff
From e4f08157b6693b956fe9c7c987bc3eeac1abb2cc Mon Sep 17 00:00:00 2001
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From: Tim Shearer <timtimminz@gmail.com>
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Date: Tue, 2 Aug 2022 08:48:32 -0400
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Subject: [PATCH] Fix incorrect SHA384/512 digest calculation.
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Resolves an issue where certain message sizes result in an incorrect
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checksum. Specifically, when:
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(n*8) mod 1024 == 896
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where n is the file size in bytes.
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---
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lib/util/sha2.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/lib/util/sha2.c b/lib/util/sha2.c
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index b7a28cca8..f769f77f2 100644
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--- a/lib/util/sha2.c
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+++ b/lib/util/sha2.c
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@@ -490,7 +490,7 @@ SHA512Pad(SHA2_CTX *ctx)
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SHA512Update(ctx, (uint8_t *)"\200", 1);
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/* Pad message such that the resulting length modulo 1024 is 896. */
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- while ((ctx->count[0] & 1008) != 896)
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+ while ((ctx->count[0] & 1016) != 896)
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SHA512Update(ctx, (uint8_t *)"\0", 1);
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/* Append length of message in bits and do final SHA512Transform(). */
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