Técnica
utilizada para recuperar claves de cifra. Consiste en proteger una clave
criptográficamente de forma que una tercera persona pueda recuperarla.
(N) A key recovery technique
for storing knowledge of a cryptographic key by encrypting it with another key
and ensuring that only certain third parties called "recovery agents"
can perform the decryption operation to retrieve the stored key. Key
encapsulation typically permits direct retrieval of a secret key used to
provide data confidentiality. (Compare: key escrow.) [RFC4949:2007]