improve comment about buffer

2024-10-14 17:35:42 +02:00 · 2024-10-14 17:35:42 +02:00 · 2cc5b4315f
parent 67462496ec
commit 2cc5b4315f
1 changed files with 2 additions and 1 deletions
--- a/libp2p/transports/tls/certificate.nim
+++ b/libp2p/transports/tls/certificate.nim
@ -84,7 +84,8 @@ proc generateSignedKey(
  const extValueSize = 256 # Buffer size for ASN.1 encoding
  var
    extValue: array[extValueSize, byte]
-    extPtr: ptr byte = addr extValue[extValueSize - 1] # Start at the end of the buffer
+    extPtr: ptr byte = addr extValue[extValueSize - 1]
+      # Start at the end of the buffer as mbedtls_asn1_write_octet_string works backwards in data buffer.
    startPtr: ptr byte = addr extValue[0]
    len = 0