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-rw-r--r--ext/sodium/libsodium.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/sodium/libsodium.c b/ext/sodium/libsodium.c
index 32e54dc05f..142393b7c2 100644
--- a/ext/sodium/libsodium.c
+++ b/ext/sodium/libsodium.c
@@ -2885,6 +2885,7 @@ PHP_FUNCTION(sodium_crypto_kx_keypair)
zend_throw_exception(sodium_exception_ce, "internal error", 0);
return;
}
+ ZSTR_VAL(keypair)[crypto_kx_SECRETKEYBYTES + crypto_kx_PUBLICKEYBYTES] = 0;
RETURN_STR(keypair);
}