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pwd-plugin: Always use a special salt by default.

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This should make renamed users able to keep using old credentials as the salt
is not derived from the principal name but is always a random quantity.

https://fedorahosted.org/freeipa/ticket/412
This commit is contained in:
Simo Sorce 2010-10-27 15:05:56 -04:00
parent 79c39339da
commit 4f8e4482b3
2 changed files with 30 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
daemons/ipa-slapi-plugins/ipa-pwd-extop/ipapwd_encoding.c
View File

@ -350,12 +350,17 @@ static Slapi_Value **encrypt_encode_key(struct ipapwd_krbcfg *krbcfg,
case KRB5_KDB_SALTTYPE_NORMAL:
/* If pre auth is required we can set a random salt, otherwise
* we have to use a more conservative approach and set the salt
* to be REALMprincipal (the concatenation of REALM and principal
* name without any separator) */
#if 0
if (krbTicketFlags & KTF_REQUIRES_PRE_AUTH) {
krberr = krb5_principal2salt(krbctx, princ, &salt);
if (krberr) {
LOG_FATAL("krb5_principal2salt failed [%s]\n",
krb5_get_error_message(krbctx, krberr));
goto enc_error;
}
break;
case KRB5_KDB_SALTTYPE_SPECIAL:
/* make random salt */
salt.length = KRB5P_SALT_SIZE;
salt.data = malloc(KRB5P_SALT_SIZE);
if (!salt.data) {
@ -368,17 +373,6 @@ static Slapi_Value **encrypt_encode_key(struct ipapwd_krbcfg *krbcfg,
krb5_get_error_message(krbctx, krberr));
goto enc_error;
}
} else {
#endif
krberr = krb5_principal2salt(krbctx, princ, &salt);
if (krberr) {
LOG_FATAL("krb5_principal2salt failed [%s]\n",
krb5_get_error_message(krbctx, krberr));
goto enc_error;
}
#if 0
}
#endif
break;
case KRB5_KDB_SALTTYPE_V4:

14
install/share/default-keytypes.ldif
View File

@ -3,9 +3,13 @@ dn: cn=$REALM,cn=kerberos,$SUFFIX
changetype: modify
add: krbSupportedEncSaltTypes
krbSupportedEncSaltTypes: aes256-cts:normal
krbSupportedEncSaltTypes: aes256-cts:special
krbSupportedEncSaltTypes: aes128-cts:normal
krbSupportedEncSaltTypes: aes128-cts:special
krbSupportedEncSaltTypes: des3-hmac-sha1:normal
krbSupportedEncSaltTypes: des3-hmac-sha1:special
krbSupportedEncSaltTypes: arcfour-hmac:normal
krbSupportedEncSaltTypes: arcfour-hmac:special
krbSupportedEncSaltTypes: des-hmac-sha1:normal
krbSupportedEncSaltTypes: des-cbc-md5:normal
krbSupportedEncSaltTypes: des-cbc-crc:normal
@ -22,10 +26,8 @@ krbMaxRenewableAge: 604800
dn: cn=$REALM,cn=kerberos,$SUFFIX
changetype: modify
add: krbDefaultEncSaltTypes
krbDefaultEncSaltTypes: aes256-cts:normal
krbDefaultEncSaltTypes: aes128-cts:normal
krbDefaultEncSaltTypes: des3-hmac-sha1:normal
krbDefaultEncSaltTypes: arcfour-hmac:normal
krbDefaultEncSaltTypes: des-hmac-sha1:normal
krbDefaultEncSaltTypes: des-cbc-md5:normal
krbDefaultEncSaltTypes: aes256-cts:special
krbDefaultEncSaltTypes: aes128-cts:special
krbDefaultEncSaltTypes: des3-hmac-sha1:special
krbDefaultEncSaltTypes: arcfour-hmac:special