X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=sshaes.c;h=01dd04c2d6f09f48037d1d71305e5de09940e575;hb=452adcc95284e64df88f84efdc2d3d0f1ff5d7f1;hp=f227c5602c1d5d857d0c4bb6b451166433fba1fc;hpb=3730ada5ce457468441b32d7e84157e481b8ba75;p=PuTTY.git

diff --git a/sshaes.c b/sshaes.c
index f227c560..01dd04c2 100644
--- a/sshaes.c
+++ b/sshaes.c
@@ -1154,6 +1154,7 @@ 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));
 }
 
 void aes256_decrypt_pubkey(unsigned char *key, unsigned char *blk, int len)
@@ -1162,6 +1163,7 @@ 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));
 }
 
 static const struct ssh2_cipher ssh_aes128 = {