On 13.10.17 10:04, Andreas Glaeser wrote: > > Enigmail is so slow to check signatures, that it makes large attachments > practically impossible to re-check with Thunderbird on low-end PC. I > suspect the hashing-algorithm is too slow, it may be due to > double-hashing. Evolution for example is configurable in this respect, > i.e. which SHA-variant one wants to use, Enigmail is not. SHA256 should > be sufficient in any case.
I believe that the problem is not so much the hashing algorithm. The primary source of CPU consumption in Thunderbird/Enigmail is feeding the data to gpg and read back the data from gpg. There's quite a lot of overhead involved in the Mozilla platform to do such calls, making the whole process less efficient than with other technologies. If you observe the gpg and thunderbird processes, you'll easily find out which one consumes more CPU. If it's gpg, then it may be the hashing algorithm, if not, then the hashing algorithm doesn't have any influence. -Patrick
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