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Remove keysize requirements / recommendations #109

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Remove keysize requirements / recommendations #109

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26 changes: 0 additions & 26 deletions doc/usage.rst
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Expand Up @@ -90,32 +90,6 @@ generate them for you, then load them in your Python code. OpenSSL
generates a 4096-bit key in 3.5 seconds on the same machine as used
above. See :ref:`openssl` for more information.

Key size requirements
---------------------

Python-RSA version 3.0 introduced PKCS#1-style random padding. This
means that 11 bytes (88 bits) of your key are no longer usable for
encryption, so keys smaller than this are unusable. The larger the
key, the higher the security.

Creating signatures also requires a key of a certain size, depending
on the used hash method:

+-------------+-----------------------------------+
| Hash method | Suggested minimum key size (bits) |
+=============+===================================+
| MD5 | 360 |
+-------------+-----------------------------------+
| SHA-1 | 368 |
+-------------+-----------------------------------+
| SHA-256 | 496 |
+-------------+-----------------------------------+
| SHA-384 | 624 |
+-------------+-----------------------------------+
| SHA-512 | 752 |
+-------------+-----------------------------------+



Encryption and decryption
-------------------------
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