Unidirectional: Unidirectional scheme allows proxy to convert a ciphertext
of A to B in only one direction, but not vice versa.
The definitions assume that a set of attributes describes a group access structure and the ciphertext
embeds the access structure.
1000]} to decrypt the ciphertext
and obtain decrypted plaintext, respectively:
is transformed into two parts C1, C2 and one of these ones is kept secret from the PKG.
where NC is the number of changed bits in ciphertext
and TN is the total number of bits in the ciphertext
Rerandomization operations take a ciphertext
of a plain message as input, and efficiently output a new ciphertext
of the same message without decrypting the input ciphertext
A cipher key is the method used to encode a plaintext and decode a ciphertext
The second applies a secure insertion method to hide the encrypted DNA ciphertext
into some reference DNA sequence.
This is called ciphertext
and requires a ciphertext
decoder to uncode it and return it back to a readable format.
At its destination, ciphertext
is converted back to plaintext.
So they must find some way of hiding their ciphertext
in an innocuous looking covertext.
The MB86C30A bridge IC supports two AES operation modes: Cipher Block Chaining (CBC), a mode for encrypting block data, and XTS, the XEX encryption mode with tweak and ciphertext