Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-17 Thread Robert J. Hansen via Gnupg-users
Unfortunately 3DES did not survive said scrutiny in the end... It absolutely *has* survived scrutiny. I don't know where you're getting your information. 3DES is being phased out because its 64-bit block size makes it dicey for modern bulk encryption, and because its spectacular overdesign

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-16 Thread Dieter Frye
>> My current understanding of the situation is that there are no known >> effective attacks against Blowfish so long as it's adequately >> implemented according to the suggested specifications and it's >> relatively limited block size accounted for, and I naturally tend to >> gravitate towards te

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-16 Thread Dieter Frye
> On 13-10-2020 16:46, Dieter Frye wrote: > >> Now if any of this remains true today, I cannot tell (I did the research >> a >> number of years ago so it's possible something changed along the way), >> but >> even if not, it would still make sense to me to allow for greater (or >> better yet, full)

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-14 Thread Robert J. Hansen via Gnupg-users
My current understanding of the situation is that there are no known effective attacks against Blowfish so long as it's adequately implemented according to the suggested specifications and it's relatively limited block size accounted for, and I naturally tend to gravitate towards tested-and-tr

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-13 Thread Johan Wevers
On 13-10-2020 16:46, Dieter Frye wrote: > Now if any of this remains true today, I cannot tell (I did the research a > number of years ago so it's possible something changed along the way), but > even if not, it would still make sense to me to allow for greater (or > better yet, full) key size to

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-13 Thread Dieter Frye
> On Sat, 10 Oct 2020 03:00, Dieter Frye said: > >> I've been using Blowfish on older machines for years now without issue >> and >> I always wondered if this is one of those things that could possibly >> benefit from an update. > > Nope. I used Blowfish back then because it was the only free and

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-11 Thread Werner Koch via Gnupg-users
On Sat, 10 Oct 2020 03:00, Dieter Frye said: > I've been using Blowfish on older machines for years now without issue and > I always wondered if this is one of those things that could possibly > benefit from an update. Nope. I used Blowfish back then because it was the only free and modern algor

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-10 Thread Dieter Frye
>> What's the rationale behind not going full 448 or at least 256 like >> AES and Twofish? > > Age. At the time Blowfish was adopted there were literally no 256-bit > ciphers in the RFC2440 suite. Symmetric ciphers were all 128-bit > (except arguably for 3DES, where the size is wonky[*]). The fi

Re: Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-10 Thread Robert J. Hansen via Gnupg-users
What's the rationale behind not going full 448 or at least 256 like AES and Twofish? Age. At the time Blowfish was adopted there were literally no 256-bit ciphers in the RFC2440 suite. Symmetric ciphers were all 128-bit (except arguably for 3DES, where the size is wonky[*]). The first 256-bit

Why is Blowfish's key size limited to 128 bits in RFC 4880?

2020-10-10 Thread Dieter Frye
What's the rationale behind not going full 448 or at least 256 like AES and Twofish? Best regards. ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users