Change of enc type

[Prabodh Achyutha M]

First I have used triple des,but now
Although I have changed the encryption,master key types in kdc.conf to
   master_key_type = des-cbc-crc
   supported_enctypes = des-cbc-crc:normal dec-cbc-md5:normal

I am getting only triple DES, not normal DES with kadmin.(see below)
kadmin:  ktadd a/a
Entry for principal a/a with kvno 6, encryption type Triple DES cbc mode
with HMAC/sha1 added to keytab WRFILE:/etc/krb5.keytab.
Entry for principal a/a with kvno 6, encryption type DES cbc mode with
CRC-32 added to keytab WRFILE:/etc/krb5.keytab.

how to change it to normal des?

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