The PC1 cipher, also called the Kindle cipher or Pukall cipher 1, is a block cipher introduced in 1991. It is most prominently used by Amazon, Inc., for their Kindle e-book reader's DRM system.

The PY file for PC1 encryption algorithm in Python language (128-bit keys) by Huey Jiang ( input = TEXT, output = TEXT ). The ZIP archive for PC1 encryption algorithm in Delphi language …

Aug 1, 2018 · How are the permuted choice tables - PC-1 and PC-2 - calculated for the DES block cipher algorithm? I think they were established rather than calculated. Note that the DES / …

Jan 7, 2024 · PC1 is a variable-key-size stream cipher. It produces identical output to the proprietary RC4 (TM) stream cipher (aka ARCFOUR). It operates on individual bytes. To …

Differential cryptanalysis analyzes frequency of ( ΔP, ΔC) pairs. Linear cryptanalysis analyzes frequency of linear relationships among plaintext, ciphertext, and key.

Using weak keys, the outcome of the Permuted Choice 1 (PC1) in the DES key schedule leads to round keys (K1---K 16) being either all zeros, all ones or alternating zero-one patterns.

Sending encrypted data between two Mega328s using the 128-bit PC1 encryption algorithm. Based on the example of SimuleIDE 1.0.0: Mega328_usart which send a counter between two …

In this paper we study a 128-bit-key cipher called PC1 which is used as part of the DRM system of the Amazon Kindle e-book reader. This is the first academic cryptanalysis of this cipher and it …

Difference between encryption and decryption in very simple way. these permautations are inverse of each other and operate on 64 bits. They have no cryptographic significance. What is …

Encrypt or decrypt any string using various algorithm with just one mouse click. AES (Advanced Encryption Standard) is the most popular encryption algorithm out of the ones we have listed. …