(v.) = decipher ; decode ; decrypt ; unscramble.
Ex: Such redundant entries are difficult to decipher and expensive to produce and maintain.
Ex: The microprocessor operates in three steps: (a) fetch the instruction from memory; (b) decode the instruction; (c) execute the instruction.
Ex: This paper describes methods for obtaining and using PGP to encrypt and decrypt electronic mail messages.
Ex: If a directory, similar to the telephone directory, is published listing personal keys it becomes possible for a scrambled message to be sent to anyone, which only the intended recipient can unscramble.
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* difícil de descifrar = cryptic.
* programa para descifrar contraseñas = password cracking programme.

The following video provides you with the correct English pronunciation of the word "descifrar", to help you become a better English speaker.

desxifrar

v. decipher, decode; interpret

deşifre

 tr 1) дешифрирам, разчитам; 2) прен. разгадавам.