https://bugs.gentoo.org/463444 From 9ab3ce124616cb12bd39c6aa1e1bde0f46969b29 Mon Sep 17 00:00:00 2001 From: Andy Polyakov Date: Mon, 18 Mar 2013 19:29:41 +0100 Subject: [PATCH] e_aes_cbc_hmac_sha1.c: fix rare bad record mac on AES-NI plaforms. PR: 3002 (cherry picked from commit 5c60046553716fcf160718f59160493194f212dc) --- crypto/evp/e_aes_cbc_hmac_sha1.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/crypto/evp/e_aes_cbc_hmac_sha1.c b/crypto/evp/e_aes_cbc_hmac_sha1.c index 483e04b..fb2c884 100644 --- a/crypto/evp/e_aes_cbc_hmac_sha1.c +++ b/crypto/evp/e_aes_cbc_hmac_sha1.c @@ -328,10 +328,11 @@ static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, if (res!=SHA_CBLOCK) continue; - mask = 0-((inp_len+8-j)>>(sizeof(j)*8-1)); + /* j is not incremented yet */ + mask = 0-((inp_len+7-j)>>(sizeof(j)*8-1)); data->u[SHA_LBLOCK-1] |= bitlen&mask; sha1_block_data_order(&key->md,data,1); - mask &= 0-((j-inp_len-73)>>(sizeof(j)*8-1)); + mask &= 0-((j-inp_len-72)>>(sizeof(j)*8-1)); pmac->u[0] |= key->md.h0 & mask; pmac->u[1] |= key->md.h1 & mask; pmac->u[2] |= key->md.h2 & mask; -- 1.8.2.1