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-rw-r--r--debian/login.defs10
1 files changed, 10 insertions, 0 deletions
diff --git a/debian/login.defs b/debian/login.defs
index ebf22430..0b717983 100644
--- a/debian/login.defs
+++ b/debian/login.defs
@@ -345,6 +345,16 @@ NONEXISTENT /nonexistent
# Set to "no" to not prevent for any account (dangerous, historical default)
PREVENT_NO_AUTH superuser
+#
+# Select the HMAC cryptography algorithm.
+# Used in pam_timestamp module to calculate the keyed-hash message
+# authentication code.
+#
+# Note: It is recommended to check hmac(3) to see the possible algorithms
+# that are available in your system.
+#
+#HMAC_CRYPTO_ALGO SHA512
+
################# OBSOLETED BY PAM ##############
# #
# These options are now handled by PAM. Please #