Introduce a new utility function smemclr(), which memsets things to

[PuTTY.git] / sshaes.c

diff --git a/sshaes.c b/sshaes.c
index 2800e021f0d0d1ed66733c8cadbabadf2a0d0fde..97935b7f19ee4c8f59f5cbd1df5e665083014973 100644 (file)
--- a/sshaes.c
+++ b/sshaes.c
@@ -1157,7 +1157,7 @@ void aes256_encrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
     aes_setup(&ctx, 16, key, 32);
     memset(ctx.iv, 0, sizeof(ctx.iv));
     aes_encrypt_cbc(blk, len, &ctx);
-    memset(&ctx, 0, sizeof(ctx));
+    smemclr(&ctx, sizeof(ctx));
 }
 
 void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
@@ -1166,7 +1166,7 @@ void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
     aes_setup(&ctx, 16, key, 32);
     memset(ctx.iv, 0, sizeof(ctx.iv));
     aes_decrypt_cbc(blk, len, &ctx);
-    memset(&ctx, 0, sizeof(ctx));
+    smemclr(&ctx, sizeof(ctx));
 }
 
 static const struct ssh2_cipher ssh_aes128_ctr = {