From: Dr. Stephen Henson <steve@openssl.org>
Date: Wed, 11 Apr 2012 12:26:41 +0000 (+0000)
Subject: make reinitialisation work for CMAC
X-Git-Tag: master-post-reformat~1871
X-Git-Url: https://git.openssl.org/?p=openssl.git;a=commitdiff_plain;h=bbe0c8c5be6aa2cbbb60c4aa80990cb995955903;hp=5a34fcd76ed6a411b5cd33764cc02b1ce40fdb7a

make reinitialisation work for CMAC
---

diff --git a/crypto/cmac/cmac.c b/crypto/cmac/cmac.c
index 064b67d073..88a323da9c 100644
--- a/crypto/cmac/cmac.c
+++ b/crypto/cmac/cmac.c
@@ -151,6 +151,8 @@ int CMAC_Init(CMAC_CTX *ctx, const void *key, size_t keylen,
 			return 0;
 		if (!M_EVP_EncryptInit_ex(&ctx->cctx, NULL, NULL, NULL, zero_iv))
 			return 0;
+		memset(ctx->tbl, 0, bl);
+		ctx->nlast_block = 0;
 		return 1;
 		}
 	/* Initialiase context */