in kerby-kerb/kerb-crypto/src/main/java/org/apache/kerby/kerberos/kerb/crypto/util/Rc4.java [47:64]
private static int convertUsage(int usage) {
switch (usage) {
case 1: return 1; /* AS-REQ PA-ENC-TIMESTAMP padata timestamp, */
case 2: return 2; /* ticket from kdc */
case 3: return 8; /* as-rep encrypted part */
case 4: return 4; /* tgs-req authz data */
case 5: return 5; /* tgs-req authz data in subkey */
case 6: return 6; /* tgs-req authenticator cksum */
case 7: return 7; /* tgs-req authenticator */
case 8: return 8;
case 9: return 9; /* tgs-rep encrypted with subkey */
case 10: return 10; /* ap-rep authentication cksum (never used by MS) */
case 11: return 11; /* app-req authenticator */
case 12: return 12; /* app-rep encrypted part */
case 23: return 13; /* sign wrap token*/
default: return usage;
}
}