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author | Sybren A. Stüvel <sybren@stuvel.eu> | 2011-06-20 00:23:49 +0200 |
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committer | Sybren A. Stüvel <sybren@stuvel.eu> | 2011-06-20 00:23:49 +0200 |
commit | bc7f521f3334eb39f974e9f6c0bb38f64ae989f8 (patch) | |
tree | 4fd5b28051e465cc435353947d1a13699fc6b0b0 /rsa/common.py | |
parent | 2caf3a0299b54ad6e3333492eda56bde56376dd1 (diff) | |
download | rsa-bc7f521f3334eb39f974e9f6c0bb38f64ae989f8.tar.gz |
More separation of the code
Diffstat (limited to 'rsa/common.py')
-rw-r--r-- | rsa/common.py | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/rsa/common.py b/rsa/common.py new file mode 100644 index 0000000..d00a44d --- /dev/null +++ b/rsa/common.py @@ -0,0 +1,9 @@ +'''Common functionality shared by several modules.''' + +import math + +def bit_size(number): + """Returns the number of bits required to hold a specific long number""" + + return int(math.ceil(math.log(number,2))) + |