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diff --git a/lib/libcrypt/crypt-md5.c b/lib/libcrypt/crypt-md5.c
--- a/lib/libcrypt/crypt-md5.c
+++ b/lib/libcrypt/crypt-md5.c
@@ -32,6 +32,7 @@
#include <md5.h>
#include <stdio.h>
#include <string.h>
+#include <strings.h>
#include <unistd.h>
#include "crypt.h"
@@ -84,7 +85,7 @@
(u_int)(pl > MD5_SIZE ? MD5_SIZE : pl));
/* Don't leave anything around in vm they could use. */
- memset(final, 0, sizeof(final));
+ explicit_bzero(final, sizeof(final));
/* Then something really weird... */
for (i = strlen(pw); i; i >>= 1)
@@ -140,7 +141,7 @@
*buffer = '\0';
/* Don't leave anything around in vm they could use. */
- memset(final, 0, sizeof(final));
+ explicit_bzero(final, sizeof(final));
return (0);
}
diff --git a/lib/libcrypt/crypt-sha256.c b/lib/libcrypt/crypt-sha256.c
--- a/lib/libcrypt/crypt-sha256.c
+++ b/lib/libcrypt/crypt-sha256.c
@@ -41,6 +41,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <strings.h>
#include "crypt.h"
@@ -234,9 +235,9 @@
* the SHA256 implementation as well. */
SHA256_Init(&ctx);
SHA256_Final(alt_result, &ctx);
- memset(temp_result, '\0', sizeof(temp_result));
- memset(p_bytes, '\0', key_len);
- memset(s_bytes, '\0', salt_len);
+ explicit_bzero(temp_result, sizeof(temp_result));
+ explicit_bzero(p_bytes, key_len);
+ explicit_bzero(s_bytes, salt_len);
return (0);
}
diff --git a/lib/libcrypt/crypt-sha512.c b/lib/libcrypt/crypt-sha512.c
--- a/lib/libcrypt/crypt-sha512.c
+++ b/lib/libcrypt/crypt-sha512.c
@@ -41,6 +41,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <strings.h>
#include "crypt.h"
@@ -246,9 +247,9 @@
* the SHA512 implementation as well. */
SHA512_Init(&ctx);
SHA512_Final(alt_result, &ctx);
- memset(temp_result, '\0', sizeof(temp_result));
- memset(p_bytes, '\0', key_len);
- memset(s_bytes, '\0', salt_len);
+ explicit_bzero(temp_result, sizeof(temp_result));
+ explicit_bzero(p_bytes, key_len);
+ explicit_bzero(s_bytes, salt_len);
return (0);
}

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