-c zero: assume zero counter value.

[tfcrypt.git] / tfc_error.c

diff --git a/tfc_error.c b/tfc_error.c
index 001273e1caed36d3b6b6730c73cd9980f2df4b69..b90b1087f659d4d656490c639b71586b713319ad 100644 (file)
--- a/tfc_error.c
+++ b/tfc_error.c
@@ -171,6 +171,7 @@ void usage(void)
        tfc_say("    show: do default action, then dump CTR value to stderr,");
        tfc_say("    head: when decrypting, read CTR from beginning of stream,");
        tfc_say("    rand: generate random CTR and write it to beginning of stream,");
+       tfc_say("    zero: assume zero CTR is used, do not read from and write it to stream,");
        tfc_say("    <file>: read CTR from given file (both when encrypting/decrypting).");
        tfc_say("      default is to derive CTR from user provided password or keyfile with");
        tfc_say("      a single Skein function turn over derived, %u byte raw key", TFC_U(TF_KEY_SIZE));