X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=sshsh512.c;h=f0f135108142be6594c31f023ac24007e076853a;hb=a8c4e67ff9ebdced0a4fb393f934b22cb5aae02f;hp=cd2b296e63bdf1efed34b2423257f6aa9ef704ed;hpb=d0ca84935e7f1ea686b57f75c13d883c4093e758;p=PuTTY.git

diff --git a/sshsh512.c b/sshsh512.c
index cd2b296e..f0f13510 100644
--- a/sshsh512.c
+++ b/sshsh512.c
@@ -306,6 +306,7 @@ void SHA512_Simple(const void *p, int len, unsigned char *output) {
     SHA512_Init(&s);
     SHA512_Bytes(&s, p, len);
     SHA512_Final(&s, output);
+    smemclr(&s, sizeof(s));
 }
 
 void SHA384_Simple(const void *p, int len, unsigned char *output) {
@@ -314,6 +315,7 @@ void SHA384_Simple(const void *p, int len, unsigned char *output) {
     SHA384_Init(&s);
     SHA512_Bytes(&s, p, len);
     SHA384_Final(&s, output);
+    smemclr(&s, sizeof(s));
 }
 
 /*
@@ -329,7 +331,7 @@ static void *sha512_init(void)
     return s;
 }
 
-static void sha512_bytes(void *handle, void *p, int len)
+static void sha512_bytes(void *handle, const void *p, int len)
 {
     SHA512_State *s = handle;
 
@@ -341,6 +343,7 @@ static void sha512_final(void *handle, unsigned char *output)
     SHA512_State *s = handle;
 
     SHA512_Final(s, output);
+    smemclr(s, sizeof(*s));
     sfree(s);
 }
 
@@ -362,6 +365,7 @@ static void sha384_final(void *handle, unsigned char *output)
     SHA512_State *s = handle;
 
     SHA384_Final(s, output);
+    smemclr(s, sizeof(*s));
     sfree(s);
 }