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Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/pycrypt.rst | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Doc/pycrypt.rst b/Doc/pycrypt.rst index 32f5d00..3abcd06 100644 --- a/Doc/pycrypt.rst +++ b/Doc/pycrypt.rst @@ -663,7 +663,7 @@ Constructs a key object from a tuple of data. This is algorithm-specific; look at the source code for the details. (To be documented later.) -**generate(size, randfunc, progress_func=None)**: +**generate(size, randfunc, progress_func=None, e=65537)**: Generate a fresh public/private key pair. ``size`` is a algorithm-dependent size parameter, usually measured in bits; the larger it is, the more difficult it will be to break the key. Safe @@ -683,6 +683,12 @@ string containing the key parameter currently being generated; it's useful for interactive applications where a user is waiting for a key to be generated. +``e`` is the public RSA exponent, and must be an odd positive integer. +It is typically a small number with very few ones in its binary representation. +The default value 65537 (=0b10000000000000001) is a safe choice: other +common values are 5, 7, 17, and 257. Exponent 3 is also widely used, +but it requires very special care when padding the message. + If you want to interface with some other program, you will have to know the details of the algorithm being used; this isn't a big loss. If you don't care about working with non-Python software, simply use the |