Encrypt file using M2Crypto
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Bear
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Published on 2012-10-03T15:36:09Z
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2012/10/03
15:37 UTC
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It is known that I can read the whole file content in memory and encrypt it using the following code.
contents = fin.read()
cipher = M2Crypto.EVP.Cipher(alg="aes_128_cbc", key = aes_key, iv = aes_iv, op = 1)
encryptedContents = cipher.update(contents)
encryptedContents += cipher.final()
But what if the file size is large, is there a way for me to pass the input stream to M2Crypto instead of reading the whole file first?
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