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Pyfhel relinearize

Hi,I recently got my hands-on with this amazing library.But i got some problems when i applied logistic regression model with Stochastic gradient descent on encrypted. To relinearize a ciphertext of size M >= 2 back to size 2, we actually need M-2 evaluation keys. Attempting to relinearize a too large ciphertext with too few evaluation keys will result in an exception being thrown. Parameters. bitCount - The bigger the faster but noisier (will require relinearization). Needs to be within [1, 60] Returns. Non API serialized¶ class Pyfhel.PyCtxt. Bases: object Ciphertext class of Pyfhel, contains a value/vector of encrypted ints/doubles. This class references SEAL, PALISADE and HElib ciphertexts, using the one corresponding to the backend selected in Pyfhel relinBitCount() (Pyfhel.Pyfhel method) relinearize() (Pyfhel.Pyfhel method) relinKeyGen() (Pyfhel.Pyfhel method) restoreContext() (Pyfhel.Pyfhel method) restorepublicKey() (Pyfhel.Pyfhel method) restorerelinKey() (Pyfhel.Pyfhel method) restorerotateKey() (Pyfhel.Pyfhel method) restoresecretKey() (Pyfhel.Pyfhel method) rotate() (Pyfhel.Pyfhel method

Ciphertext class of Pyfhel, contains a value/vector of encrypted ints/doubles. This class references SEAL, PALISADE and HElib ciphertexts, using the one corresponding to the backend selected in Pyfhel. By default, it is SEAL. __init__ (PyCtxt copy_ctxt=None, Pyfhel pyfhel=None, fileName=None, serialized=None, encoding=None) Pyfhel # to allow batch encoding, we need a polynomial modulus p # so that the polynomial modulus divides p-1 he2. contextGen (p = 40961, m = 4096, flagBatching = True) he2. keyGen # we need to generate rotation keys to enable rotation # operations he2. rotateKeyGen (20) array1 = he2. encryptBatch ([1, 2, 3, 4]) array2 = he2. encryptBatch ([2, 2, 2, 2]) # the third argument (True) is used to store the result in # a new ciphertext (otherwise it would be stored in array1) array_mult.

How to Relinearize. SystemError: <method 'relinearize' of ..

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