> I would love to know why your ubuntu 14.04 system doesn't support sha512-crypt.I just tried SHA512-CRYPT and it is supported on Ubuntu 14.04. I think I was thinking about DBMail instead of Dovecot. I could really use support for BLF-CRYPT since my current password hashes generated by PHP are using Blowfish encryption. Maybe, Dovecot could just add support for BLF-CRYPT by using the open source implementation of Blowfish hashing found in https://github.com/php/php-src/tree/master/ext/standard <https://github.com/php/php-src/tree/master/ext/standard>. The implementation looks like a single function to generate the hash. I?m not much of a programmer, but it would seem to me that these .c/.h files could be added to Dovecot for doing BLF-CRYPT hashing. This would mean all installations of Dovecot going forward would support BLF-CRYPT regardless of whether the crypt libraries have Blowfish built in. Kevin> On Jun 4, 2016, at 9:53 AM, Patrick Domack <patrickdk at patrickdk.com> wrote: > > > Quoting KT Walrus <kevin at my.walr.us <mailto:kevin at my.walr.us>>: > >> (I subscribed to a daily digest for this list and can?t figure out how to reply to a reply.) >> >> Anyway, Aki Tuomi replied to my feature request saying: >> >>> We support in latest 2.2 release >>> >>> MD5 MD5-CRYPT SHA SHA1 SHA256 SHA512 SMD5 SSHA SSHA256 SSHA512 PLAIN >>> CLEAR CLEARTEXT PLAIN-TRUNC CRAM-MD5 SCRAM-SHA-1 HMAC-MD5 DIGEST-MD5 >>> PLAIN-MD4 PLAIN-MD5 LDAP-MD5 LANMAN NTLM OTP SKEY RPA CRYPT SHA256-CRYPT >>> SHA512-CRYPT >>> >>> There is also blowfish support as BLF-CRYPT, but that requires that your >>> system supports it. CRYPT supports whatever your crypt() supports. >>> >> >> The reason I suggest building in fallback hash type support is that my install of Dovecot on Ubuntu 14.04 didn?t support SHA512-CRYPT or BLF-CRYPT. >> >> If Dovecot just included the PHP .c files to make sure it can process Blowfish/SHA512 password hashes on all installs, it would greatly simplify adding Dovecot as a service for my existing user accounts (without forcing them to give their password for the site so I can generate new hashes in a form that Dovecot supports). SHA256-CRYPT is probably my best option for password hashing since it supports ROUNDS to make hash generation slower. But, I would rather use BLF-CRYPT so I can re-use my existing hashes for my user accounts. > > I would love to know why your ubuntu 14.04 system doesn't support sha512-crypt. > > My dovecot installs have only ever used sha512-crypt since 2008. Been using ubuntu since 7.04 with sha512-crypt, and my current systems running 14.04 and 16.04 both use sha512-crypt. > > The default password hash for system user accounts in ubuntu has been sha512-crypt for a very long time now.
Sent from my iPhone On Jun 5, 2016, at 6:16 PM, KT Walrus <kevin at my.walr.us> wrote:>> I would love to know why your ubuntu 14.04 system doesn't support sha512-crypt. > > I just tried SHA512-CRYPT and it is supported on Ubuntu 14.04. I think I was thinking about DBMail instead of Dovecot. > > I could really use support for BLF-CRYPT since my current password hashes generated by PHP are using Blowfish encryption. > > Maybe, Dovecot could just add support for BLF-CRYPT by using the open source implementation of Blowfish hashing found in https://github.com/php/php-src/tree/master/ext/standard <https://github.com/php/php-src/tree/master/ext/standard>. The implementation looks like a single function to generate the hash. I?m not much of a programmer, but it would seem to me that these .c/.h files could be added to Dovecot for doing BLF-CRYPT hashing. >It already does. As previously stated.> This would mean all installations of Dovecot going forward would support BLF-CRYPT regardless of whether the crypt libraries have Blowfish built in. > > Kevin > >> On Jun 4, 2016, at 9:53 AM, Patrick Domack <patrickdk at patrickdk.com> wrote: >> >> >> Quoting KT Walrus <kevin at my.walr.us <mailto:kevin at my.walr.us>>: >> >>> (I subscribed to a daily digest for this list and can?t figure out how to reply to a reply.) >>> >>> Anyway, Aki Tuomi replied to my feature request saying: >>> >>>> We support in latest 2.2 release >>>> >>>> MD5 MD5-CRYPT SHA SHA1 SHA256 SHA512 SMD5 SSHA SSHA256 SSHA512 PLAIN >>>> CLEAR CLEARTEXT PLAIN-TRUNC CRAM-MD5 SCRAM-SHA-1 HMAC-MD5 DIGEST-MD5 >>>> PLAIN-MD4 PLAIN-MD5 LDAP-MD5 LANMAN NTLM OTP SKEY RPA CRYPT SHA256-CRYPT >>>> SHA512-CRYPT >>>> >>>> There is also blowfish support as BLF-CRYPT, but that requires that your >>>> system supports it. CRYPT supports whatever your crypt() supports. >>> >>> The reason I suggest building in fallback hash type support is that my install of Dovecot on Ubuntu 14.04 didn?t support SHA512-CRYPT or BLF-CRYPT. >>> >>> If Dovecot just included the PHP .c files to make sure it can process Blowfish/SHA512 password hashes on all installs, it would greatly simplify adding Dovecot as a service for my existing user accounts (without forcing them to give their password for the site so I can generate new hashes in a form that Dovecot supports). SHA256-CRYPT is probably my best option for password hashing since it supports ROUNDS to make hash generation slower. But, I would rather use BLF-CRYPT so I can re-use my existing hashes for my user accounts. >> >> I would love to know why your ubuntu 14.04 system doesn't support sha512-crypt. >> >> My dovecot installs have only ever used sha512-crypt since 2008. Been using ubuntu since 7.04 with sha512-crypt, and my current systems running 14.04 and 16.04 both use sha512-crypt. >> >> The default password hash for system user accounts in ubuntu has been sha512-crypt for a very long time now.
>> Maybe, Dovecot could just add support for BLF-CRYPT by using the open source implementation of Blowfish hashing found in https://github.com/php/php-src/tree/master/ext/standard <https://github.com/php/php-src/tree/master/ext/standard>. The implementation looks like a single function to generate the hash. I?m not much of a programmer, but it would seem to me that these .c/.h files could be added to Dovecot for doing BLF-CRYPT hashing. >> > It already does. As previously stated.It doesn?t for me. I?m building Dovecot from source (v2.2.24) in a Docker container using Ubuntu 14.04. Does BLF-CRYPT work for you? Maybe I?m not building Dovecot correctly. I install libssl-dev and libmysqlclient-dev and do: $ ./configure --prefix=/usr --sysconfdir=/etc --with-mysql $ make $ make install Am I missing some library/switch to enable BLF-CRYPT? I just did a quick Google search, and it appears that Ubuntu 14.04 doesn?t have support for BLF-CRYPT according to this issue: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349252 <https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1349252> Actually, now that I?ve researched this a bit more, it was a mistake for my PHP app to make BLF-CRYPT password hashes since SHA512-CRYPT with a high number of rounds should be just as good. If Ubuntu 16.04 didn't add support for BLF-CRYPT, I guess I will have to implement a Checkpassword script for Dovecot that might generate SHA512-CRYPT replacement hashes after successfully checking against the BLF-CRYPT hashes. I?m no Dovecot expert, but I think I can have multiple passdbs so the first passdb mysql lookup will be set to fail if it finds a BLF-CRYPT hash so the Checkpassword script would only be run once per failed mysql lookup. Hopefully, I just missed some ./configure switch to enable BLF-CRYPT and don?t have to deal with converting BLF-CRYPT to SHA512-CRYPT just for Dovecot. Kevin> On Jun 5, 2016, at 7:43 PM, Edgar Pettijohn <edgar at pettijohn-web.com> wrote: > > > > Sent from my iPhone > > On Jun 5, 2016, at 6:16 PM, KT Walrus <kevin at my.walr.us> wrote: > >>> I would love to know why your ubuntu 14.04 system doesn't support sha512-crypt. >> >> I just tried SHA512-CRYPT and it is supported on Ubuntu 14.04. I think I was thinking about DBMail instead of Dovecot. >> >> I could really use support for BLF-CRYPT since my current password hashes generated by PHP are using Blowfish encryption. >> >> Maybe, Dovecot could just add support for BLF-CRYPT by using the open source implementation of Blowfish hashing found in https://github.com/php/php-src/tree/master/ext/standard <https://github.com/php/php-src/tree/master/ext/standard>. The implementation looks like a single function to generate the hash. I?m not much of a programmer, but it would seem to me that these .c/.h files could be added to Dovecot for doing BLF-CRYPT hashing. >> > It already does. As previously stated. > > >> This would mean all installations of Dovecot going forward would support BLF-CRYPT regardless of whether the crypt libraries have Blowfish built in. >> >> Kevin >> >>> On Jun 4, 2016, at 9:53 AM, Patrick Domack <patrickdk at patrickdk.com> wrote: >>> >>> >>> Quoting KT Walrus <kevin at my.walr.us <mailto:kevin at my.walr.us>>: >>> >>>> (I subscribed to a daily digest for this list and can?t figure out how to reply to a reply.) >>>> >>>> Anyway, Aki Tuomi replied to my feature request saying: >>>> >>>>> We support in latest 2.2 release >>>>> >>>>> MD5 MD5-CRYPT SHA SHA1 SHA256 SHA512 SMD5 SSHA SSHA256 SSHA512 PLAIN >>>>> CLEAR CLEARTEXT PLAIN-TRUNC CRAM-MD5 SCRAM-SHA-1 HMAC-MD5 DIGEST-MD5 >>>>> PLAIN-MD4 PLAIN-MD5 LDAP-MD5 LANMAN NTLM OTP SKEY RPA CRYPT SHA256-CRYPT >>>>> SHA512-CRYPT >>>>> >>>>> There is also blowfish support as BLF-CRYPT, but that requires that your >>>>> system supports it. CRYPT supports whatever your crypt() supports. >>>> >>>> The reason I suggest building in fallback hash type support is that my install of Dovecot on Ubuntu 14.04 didn?t support SHA512-CRYPT or BLF-CRYPT. >>>> >>>> If Dovecot just included the PHP .c files to make sure it can process Blowfish/SHA512 password hashes on all installs, it would greatly simplify adding Dovecot as a service for my existing user accounts (without forcing them to give their password for the site so I can generate new hashes in a form that Dovecot supports). SHA256-CRYPT is probably my best option for password hashing since it supports ROUNDS to make hash generation slower. But, I would rather use BLF-CRYPT so I can re-use my existing hashes for my user accounts. >>> >>> I would love to know why your ubuntu 14.04 system doesn't support sha512-crypt. >>> >>> My dovecot installs have only ever used sha512-crypt since 2008. Been using ubuntu since 7.04 with sha512-crypt, and my current systems running 14.04 and 16.04 both use sha512-crypt. >>> >>> The default password hash for system user accounts in ubuntu has been sha512-crypt for a very long time now.