DSA key sizes

[Robert J. Hansen]

> Just out of curiosity: DSA key sizes are now rounded to one of 3
> values, whereas RSA keys are available in a range of sizes between two
> limits.  Why the difference?

>From the FAQ:

"11.10 Why is my DSA key limited to 3072 bits?

The United States’ National Institute of Standards and Technology (NIST)
is responsible for the DSA specification. NIST has not published a
4096-bit DSA variant, and thus GnuPG doesn’t offer it."