PyCrypto

App Engine includes a custom version of the Python Cryptography Toolkit, also known as PyCrypto. The version included with App Engine is based on pycrypto 2.0.1. This is not the latest version, but should be largely compatible with more recent versions.

For reasons both technical and legal, the App Engine version of PyCrypto has the following differences from the original PyCrypto 2.0.1:

• The RC5 and IDEA ciphers have been removed.

• The MODE_PGP encryption mode has been removed.

• All public key cryptography routines are implemented in pure Python code. They do not use any native acceleration (C code).

カスタムバージョンのPyCrypto。
RC5,IDEA秘密鍵はなし。MODE_PGP暗号化はなし。すべてPythonコードでCバインディングを使っていない。