security.mkd

Malleability

Malleability is a property of some cryptographic algorithms.An encryption algorithm is malleable if it is possible for an adversary to transform a ciphertext into another ciphertext which decrypts to a related plaintext. That is, given an encryption of a plaintext $m$, it is possible to generate another ciphertext which decrypts to $f(m)$, for a known function $f$, without necessarily knowing or learning $m$.